Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Including spinal disc spacer between adjacent spine bones

Subclass of:

623 - Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor

623110110 - IMPLANTABLE PROSTHESIS

623160110 - Bone

623170110 - Spine bone

Patent class list (only not empty are listed)

Deeper subclasses:

Entries
DocumentTitleDate
20110178601Adjustable Insertion Device For A Vertebral Implant - Intervertebral implants configured to engage with an insertion device for insertion between first and second vertebral members. The implants may include a body with a sidewall that forms an interior space. An opening may extend through the sidewall and into the interior space. Receptacles may be positioned at the opening and include an inlet to receive the insertion device.07-21-2011
20110184521PROSTHESIS CONNECTION MECHANISM - A prosthesis comprising a component for engaging a surface of a vertebral body is disclosed. The component comprises a bone-engaging surface and an outer surface that is not bone-engaging, wherein the bone-engaging surface is configured to engage a portion of the surface of the vertebral body, wherein the vertebral body has been configured to engage with the bone-engaging surface, and wherein after the component is engaged with the vertebral body, at least at a location of an area of a junction between a vertical surface and an endplate surface of the vertebral body, the outer surface of the component has a shape that is substantially similar to an anatomical shape of the vertebral body.07-28-2011
20080269902CERVICAL IMPLANT - A spinal implant for insertion between adjacent vertebrae for promoting fusion of the vertebrae is a wedge shaped body with upper and lower plates separated by pyramidal sides with one large end and one small end enclosing the body. The upper and lower plates have elongated openings oriented perpendicularly to each other to form an internal labyrinth. The upper and lower openings are to be filled with thin layers of bone graft material to promote rapid ingrowth of living tissue.10-30-2008
20130030536Expandable Vertebral Prosthesis - The present invention relates to an expandable prosthetic implant device for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.01-31-2013
20120203346IMPLANT, METHOD AND TOOL FOR KYPHOPLASTY - An implant contains two end pieces disposed coaxially and at an axial distance, a cage, which connects the end pieces, and webs connecting the two end pieces. The two ends of each web are offset from each other by an equal initial angle in an initial state of the implant. The implant can be expanded by rotation of the end pieces in opposite directions about the center longitudinal axis. A tool for the implant has a handle and a main element with a receptacle for the implant and with two rotating devices, which act with a force fit on engaging elements of the implant and can be rotated oppositely in relation to each other.08-09-2012
20130030535METHODS AND INSTRUMENTS FOR ENDOSCOPIC INTERBODY SURGICAL TECHNIQUES - This invention relates to methods and instruments for performing a surgical procedure in a disc space between adjacent vertebrae. A cannula is inserted to create a working channel through the skin and tissue of a patient using a transforaminal approach to the disc space. A viewing element is used to visualize working end of the cannula and the disc space. A facetectomy is performed through the working channel to access the disc space. The disc space is prepared with various instruments, such as distractors, shims, chisels and distractor-cutters that extend through the working channel. At least implant is inserted into the disc space. The procedure allows bi-lateral support of the adjacent vertebrae with the at least one implant inserted via a unitary, minimally invasive approach to disc space.01-31-2013
20130030534ALLOGRAFT INTERVERTEBRAL IMPLANT AND METHOD OF MANUFACTURING THE SAME - The present invention is directed to an allograft intervertebral implant sized and configured for insertion between adjacent vertebral bodies in a spinal fusion surgery. The implant is preferably manufactured from two or more pieces of allograft bone joined together by a joint, more preferably a dovetail joint. The dovetail joint being sized and configured to substantially follow the exterior shape or surface of the intervertebral implant.01-31-2013
20130030533SPINAL IMPLANT AND METHOD OF USE - A spinal implant having a series of sections or units hinged together and a balloon connected to at least some of the sections, the balloon having a curved configuration. The implant has a first delivery configuration and a second curved placement configuration, wherein it has a more linear configuration in the first delivery configuration than in the second curved configuration. The implant assumes the first delivery configuration during delivery to the disc space and maintains the curved configuration after placement within the disc space. The curved configuration can result from filling or expanding the balloon.01-31-2013
20130030532VERTEBRAL JOINT IMPLANTS AND DELIVERY TOOLS - A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.01-31-2013
20110208312BI-DIRECTIONAL FIXATING TRANSVERTEBRAL BODY SCREWS, ZERO-PROFILE HORIZONTAL INTERVERTEBRAL MINIPLATES, EXPANSILE INTERVERTEBRAL BODY FUSION DEVICES, AND POSTERIOR MOTION-CALIBRATING INTERARTICULATING JOINT STAPLING DEVICE FOR SPINAL FUSION - An apparatus and method for joining members together using a self-drilling screw apparatus or stapling apparatus are disclosed. The screw apparatus includes a shell and first and second first screw members having tapered ends and threaded bodies that are disposed within the shell. A drive mechanism rotatably drives the first and second screw members from the shell in opposite directions and causes the screw members to embed themselves in the members to be joined. The screw apparatus can be used to join members such as bones, portions of the spinal column, vertebral bodies, wood, building materials, metals, masonry, or plastics. The stapling apparatus includes first and second lever arms rotatably joined together at a fulcrum, and the lever arms rotate in opposite directions. First and second cartridges are disposed at the ends of the lever arms. Each cartridge is capable of holding a staple including a bracket, a nail member and an alignment slot. When the ends of the lever arms are rotated towards each other the staples from the cartridges are interlocked. The staples can be also be used to join members such as bones, portions of the spinal column, or vertebral bodies.08-25-2011
20130030531Radiolucent Spinal Fusion Cage - An improved bone graft is provided for human implantation, particularly such as a spinal fusion cage for implantation into the inter-vertebral space between two adjacent vertebrae. The improved spinal fusion cage includes a substrate block of high strength biocompatible material having a selected size and shape to fit the anatomical space, and a controlled porosity analogous to natural bone. The substrate block may be coated with a bio-active surface coating material such as hydroxyapatite or a calcium phosphate to promote bone ingrowth and enhanced bone fusion. Upon implantation, the fusion cage provides a spacer element having a desired combination of mechanical strength together with osteoconductivity and osteoinductivity to promote bone ingrowth and fusion, as well as radiolucency for facilitated post-operative monitoring. The fusion cage may additionally carry one or more natural or synthetic therapeutic agents for further promoting bone ingrowth and fusion.01-31-2013
20100161060Tissue Removal Tools And Methods Of Use - Discectomy or disc preparation system that includes a guide member that is changeable from a deployment configuration for insertion into an intervertebral disc space to a deployed configuration upon being deployed into the intervertebral disc. The system also includes at least one tissue manipulator, such as cutting, scraping and extraction elements, that can be moved or tracked longitudinally along the guide member into and through the intervertebral disc space.06-24-2010
20100161061TRUSS IMPLANT - In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.06-24-2010
20120172988INTERVERTEBRAL IMPLANT WITH MULTIPLE RADII - An intervertebral implant comprises a number of components including upper and lower endplates and one or more inserts configured to be disposed between the upper and lower endplates. Complimentary curved articulation surfaces are defined on the insert-facing surfaces of the upper and lower endplates and on the corresponding upper and lower surfaces of each of the inserts. The components of the implant articulate with respect to each other along shared articulation surfaces. At least two pairs of shared articulation surfaces are defined, each pair having a different length radius. The components of the implant can be configured with retainers, such that the implant is retained in an assembled configuration when disposed within an intervertebral space.07-05-2012
20100004747Trans-Vertebral and Intra-Vertebral Plate and Fusion Cage Device for Spinal Interbody Fusion and Method of Operation - A trans-vertebral and intra-vertebral plate and a rectangular cage with a slot for the plate of spinal fixation device are for neutralizing intervertebral movement for the spinal interbody fusion. The rectangular cage with a vertical or oblique slot is inserted into the intervertebral space from the lateral or anterior side of the spinal column and then the plate is inserted through the slot of the cage and hammered into and buried inside two adjacent vertebral bodies, to achieve three-dimensional intervertebral fixation.01-07-2010
20130085574Anterior Lumbar Interbody Fusion Cage Devices and Related Systems and Methods - A cage device for performing spinal fusion surgery and related methods. In some embodiments, a housing defining one or more ports may be provided that may be configured to be selectively disposed in an intervertebral space between adjacent vertebrae. One or more extensible retention structures may also be provided that may be configured to be selectively advanced out of the housing through the one or more ports. The one or more extensible retention structures may comprise a cutting edge configured such that the cutting edge is positioned entirely within the housing prior to selective advancement of the one or more extensible retention structures out of the housing through the one or more ports. One or more actuation mechanisms configured for selectively advancing the one or more extensible retention structures out of the housing through the one or more ports may also be provided.04-04-2013
20100010633Deployable Arc Fusion Cage and Methods Associated Therewith - Expandable fusion cages and methods associated therewith are disclosed. The present invention is generally directed to an apparatus and method for implanting an anterior installed intervertebral fusion cage system which can be selectively expanded between two adjacent vertebrae to cause them to change position relative to each other and produce a normal alignment of the spine, while promoting fusion of the vertebrae. Accordingly, the invention relates to an expandable fusion cage that may be inserted, in a reduced size configuration, into an intervertebral space and expanded after insertion to provide a desired size.01-14-2010
20090192618ARTIFICIAL SPINAL DISK - An artificial spinal implant for placement between adjacent vertebrae to replace disk material and to stabilize the involved vertebrae is described. The artificial disk may be disassembled for installation and/or removal for repair, replacement or adjustment, and may be assembled from the front of the spine as individual component parts, thereby permitting alignment of the spine during the assembly process, and the stabilization of the involved vertebrae once assembly has been completed. Further, the components may be chosen from a set of similar components having different sizes, thereby enabling the implant to be tailor fit to the requirements of the patient.07-30-2009
20090192615HYDROSTATIC INTERBODY - An intervertebral implant includes an upper surface configured for engagement with a first vertebral body, and a lower surface configured for engagement with a second vertebral body. A wall extends between the upper surface and the lower surface, and forms a chamber for containing osteogenic material. At least a portion of the wall is collapsible from a first position associated with a first volume of the chamber to a second position associated with a second volume of the chamber. The second volume is less than the first volume.07-30-2009
20110196501INTERBODY SPINAL IMPLANT INDUCTIVELY COUPLED TO AN EXTERNAL POWER SUPPLY - An electrical bone growth promotion apparatus for the delivery of electrical current to an implant surgically implanted between adjacent bone masses to promote bone growth to areas adjacent to the implant is disclosed. The apparatus of the present invention comprises a self contained implant having a surgically implantable, renewable power supply and related control circuitry for delivering electrical current directly to the implant and thus directly to the area in which the promotion of bone growth is desired. The desired areas of bone growth promotion may be controlled by conducting negative charge only to the desired location of bone growth promotion.08-11-2011
20110196500SPACER DEVICE AND INSERTION INSTRUMENT FOR USE IN ANTERIOR CERVICAL FIXATION SURGERY - An intervertebral spacer has curvate upper and lower rough surfaces that stimulate bone growth and is formed from a porous material that facilitates bone growth thereinto. The spacer has a plurality of smooth linear grooves to facilitate insertion of the spacer into an intervertebral space using a spacer insertion tool that has a scissor-style body. Each of the insertion tool's arm's heads has an inner surface having a pair of smoothed linear protrusions that fit within the linear grooves of the spacer when the heads are closed about the spacer. When the spacer is held, spaces are present between the spacer's rough surfaces and the heads' inner surfaces so that when the protrusions are longitudinally slid from the grooves to leave the spacer in the intervertebral spacer, the rough surfaces are not disturbed.08-11-2011
20110196499SYSTEMS AND METHODS FOR TREATING VERTEBRAL BODIES - Systems and methods treat at least two vertebral bodies in a spinal column. The systems and methods make use of first and second tool assemblies operable to treat an interior region of, respectively, a first vertebral body and a second vertebral body in the spinal column. The systems and methods provide directions for operating the first and second tool assemblies to treat the first and second vertebral bodies, at least for a portion of time, concurrently.08-11-2011
20110196498INTERVERTEBRAL DISK PROSTHESIS - An intervertebral disk prosthesis is disclosed. The intervertebral disk prosthesis is has a base plate, a top plate opposite the base plate, and an intervening core located between the top plate and base plate. One of the plates has a first concave contact face facing the core, which has a adjacent first convex contact face. A groove is provided around one of contact faces in which an elastic ring is placed. When placed in the groove, the elastic ring is also in contact with the opposite contact face.08-11-2011
20110196496Interbody Fusion Device - An interbody spacer includes concave lateral surfaces extending at an angle with respect to the longitudinal axis. In one aspect, the interbody spacer includes upper and lower convex surfaces defined by an arc extending from a center point offset from the spacer midpoint. In another aspect, lateral edges of the upper and lower surfaces are also defined by convex arcs extending from a center point offset from the spacer midpoint.08-11-2011
20110196495IMPLANT SYSTEM AND METHOD - In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.08-11-2011
20110196494PERCUTANEOUS INTERBODY SPINE FUSION DEVICES, NUCLEAR SUPPORT DEVICE, SPINE FRACTURE SUPPORT DEVICE, DELIVERY TOOLS, PERCUTANEOUS OFF-ANGLE BONE STAPLING/NAILING FIXATION DEVICE AND METHODS OF USE - Percutaneous interbody spine fusion devices are provided. These devices may have a number of different designs and exemplary features. One device consists of a single rotating hollow cam cage with perforations (with or without fixation anchors) and a delivery tool. Another device consists of a counter-rotating cam cage (with or without fixation anchors) and a delivery tool. A third device consists of an expanding cam with anchors and delivery tool; this device may consist of a single expanding cam or a series of expanding cams. A delivery tool is included. A fourth device consists of a spring cage; this device may be a stand-alone device, can be combined with expanding cam device, and may be incorporated into a cage. A delivery tool is included. This spring cage may or may not have fixation anchors. A fifth device consists of a random coil support device that can be used as a nuclear or spine fracture support device; a delivery tool is included. A sixth device consists of a directional ribbon strip coil device and delivery tool. Also provided is a percutaneous off-angle bone stapling/nailing fixation device.08-11-2011
20110196493CAGE SYSTEM TO ANTERIOR LUMBAR INTERVERTEBRAL FUSION - An implant for the human body, and in particular to an implant suitable for placement between two adjacent vertebrae of the spine, the implant having a cage to allow for bone growth in and around the cage.08-11-2011
20110196492BONE ANCHORING SYSTEMS - Embodiments relate generally to tissue anchors and methods of deliveπng same to the intervertebral disc or other sites within the body. In some embodiments, the anchors provide increased pull-out resistance, stability and/or contact with tissue involving a reduced amount of penetration. In some embodiments, delivery methods are minimally invasive and can include linear, lateral, and off-angle implantation or driving of anchors along, against or within tissue surfaces. Several embodiments disclose anchors and anchoπng systems that effectively reconstruct or augment vertebral endplate surfaces.08-11-2011
20100023128MODULAR NUCLEUS PULPOSUS PROSTHESIS - A modular nucleus pulposus prosthesis comprising at least two generally mirror image complimentary disc segments combined to form a generally discoid endoprosthetic disc and to associated tools and methods for replacing the intervertebral disc. The complimentary segments are substantially identical including outer circumferential walls roughly equal to a semi-circle aligned along concave-convex inner wall inner walls forming a common border and a generally symmetrical discoid congruent structure which is positioned within the annulus of a spinal disc section. Disc segments may include structures to support, position and secure the segments to one another intradiscally. Surgical tools include structures for inserting and aligning disc members together. Also disclosed is a system and method for replacing the nucleus pulposus using the surgical tools adapted for placement and alignment of the disc.01-28-2010
20110202137DEVICES AND METHODS FOR ANNULAR REPAIR OF INTERVERTEBRAL DISCS - Devices and methods for treating a damaged intervertebral disc to reduce or eliminate associated back pain. The present invention provides disc reinforcement therapy (DRT) which involves implanting one or more reinforcement members in and preferably around the annulus of the disc. The reinforcement members may be used to stabilize the annulus and/or compresses a portion of the annulus so as to reduce a bulge and/or close a fissure. The implantable devices and associated delivery tools may incorporate heating capabilities to thermally treat the annular tissue. Alternatively or in combination, other devices may be specifically employed for such thermal treatment.08-18-2011
20110202136ARTICULATING SPINAL IMPLANT - A spinal implant and method of implanting a spinal implant that has a spacer and a plate configured to be fastened to a plurality of vertebral bodies. The plate is coupled to the spacer, with the spacer and the plate being angularly adjustable with respect to each other.08-18-2011
20110202135EXPANDABLE SPINAL INTERBODY CAGE AND METHODS - An implantable device assembly including a bone fusion cage assembly having first and second housing members and a biasing member. The first housing member defines a first contact surface. The second housing member defines a second contact surface that faces generally opposite the first contact surface. The biasing member is operable to bias the first and second housing members away from each other into an expanded position. Each of the first and second housing members may include at least one pivot portion that defines the contact surfaces. The implantable device assembly may also include a plate assembly that is mounted to the bone fusion cage assembly.08-18-2011
20130085573INTERBODY VERTEBRAL SPACER - An interbody vertebral implant for facilitating fusion of adjacent vertebrae. The implant includes a first end plate, a second end plate, and an intermediate member disposed therebetween. The end plates are configured to allow bone in-growth. The intermediate member may include features to engage the end plates and to prevent over insertion of the intermediate member within the end plates. The implant may include a cavity extending through the composite implant configured to receive bone growth material to facilitate fusion between a first vertebra and a second vertebra.04-04-2013
20100076560Interspinous Stabilization Device - An interspinous stabilization device includes: (1) a supporting member with a top surface and a bottom surface both being configured to engage spinous processes; (2) two side members connected to the supporting member; (3) a fastener attached to the side members; and optionally (4) two extendable arms each secured on one of the side members.03-25-2010
20100076559Composite telescoping anterior interbody spinal implant - A composite telescoping interbody spinal implant and method of using the implant. The implant includes a cage formed of metal, a metal alloy, or both. The cage is able to change size following manufacture, and has a top plate with a plurality of posts and a bottom plate with a corresponding plurality of columns. The posts telescopically engage the columns upon assembly of the top plate with the bottom plate. The posts extend partially outside the columns when the top plate is in a raised first position with respect to the bottom plate; the posts and columns are fully engaged when the top plate is in a second position closest to the bottom plate. The implant also includes a non-metallic body inserted between the top plate and the bottom plate and defining the adjustable height of the implant.03-25-2010
20100114320SURGICAL SPACER WITH SHAPE CONTROL - A surgical spacer comprising first and second hollow support members, a flexible container, and a compressible material disposed in the container is disclosed. The first and second support members each have an exterior and an interior cavity. The exteriors of the first and second support members are affixed together and the interior cavities of the first and second support members are connected via a connecting opening. The container is disposed in the interior cavities and extends through the connecting opening. In addition, the container is substantially impermeable to the compressible material. The first and second support members are more rigid than the flexible container. A combination of the first and second support members controls the shape of the flexible container, with the compressible material disposed therein, in response to a compressive load applied to an exterior of the spacer.05-06-2010
20120245695Lockable Spinal Implant - A spinal implant which is configured to be deployed between adjacent vertebral bodies. The implant has at least one extendable support element with a retracted configuration to facilitate deployment of the implant and an extended configuration so as to expand the implant and effectively distract the disc space, stabilize the motion segments and eliminate pathologic spine motion. Angular deformities can also be corrected, and natural curvatures restored. Preferably, the implant has a minimal dimension in its unexpanded state that is smaller than the dimensions of the neuroforamen through which it typically passes to be deployed within the intervertebral space. The implant is provided with a locking system preferably having a plurality of locking elements to lock the implant in an extended configuration.09-27-2012
20120245693SPINAL FIXATION DEVICE - A spinal fixation device includes a proximal surface having a first portion defining a first plane and a second portion defining a second plane. The first and second planes define a first angle in relation to each other. The first and second planes define first through holes and a second through hole, respectively. The first through holes each define a first longitudinal axis, and the second through hole defines a second longitudinal axis. In particular, the first and second longitudinal axes define a second angle in relation to each other. The first through holes define a first center line on the first plane, and the second through hole defines a second center line on the second plane. The first and second center lines are disposed on opposite sides of a center line defined by the proximal surface.09-27-2012
20120245690LOCKING SPINAL FUSION DEVICE - A spinal fusion device for implantation between spinal vertebrae includes an implant member having an opposed upper and lower surface, an outer sidewall having an aperture having internal threads, and an inner sidewall defining a central opening. A plate member is attached to the implant member such that the plate member is perpendicular relative to the implant member and includes a plurality of angled apertures for receiving anchoring fasteners and a central aperture for receiving a locking fastener. A locking member is attached to the cage member. The locking member includes a tubular shaft having internal threads that is inserted through the aperture of the outer sidewall of the implant member. A locking fastener is inserted through the central aperture of the plate member and into the locking member to thereby lock the spinal fusion device in position.09-27-2012
20120245688Universal disc prosthesis - A disc prosthesis designed to effectively replace a damaged intervertebral disc, enabling the various normal movements between two adjacent vertebral bodies and controlling these movements and their extent within the same physiological limits that determine the relative motions of two adjacent vertebrae separated by a healthy intervertebral disc.09-27-2012
20080262621I-BEAM SPACER - An I-beam spacer for intervertebral fusion comprises a first flange and a second flange. The first and second flanges are spaced apart from one another and have planar structures. In addition, the first and second flanges include a first outer surface and a second outer surface transverse to the support member. The first and second outer surfaces face away from each other. Also, the first and the second flanges have a first inner surface and a second inner surface transverse to the support member, wherein the first and second inner surface face toward each other. A support member is positioned between the first flange and the second flange. The support member is transverse to the first flange and the second flange. A space is formed between the first flange and the second flange. This space is adapted to receive a bone support matrix.10-23-2008
20090270989SPINAL IMPLANTS AND METHODS - Spinal implants are disclosed that can be used for annular repair, facet unloading, disc height preservation, disc decompression, or for sealing a portal through which a nucleus implant was placed. In some embodiments, an implant is placed within the intervertebral disc space, primarily within the region of the annulus fibrosus. In some embodiments, the implant is expandable. In some embodiments, the implant has a sealing tail structure comprising a tail flange and a linkage. In some embodiments, the sealing tail structure limits the extrusion or expulsion of disc material, either annulus fibrosus or nucleus, into the posterior region of the spine where it could impinge on nerves. In some embodiments, the tail structure is retained in place within the annulus fibrosus by means of an anchor. In some embodiments, the anchor is constructed from multiple components.10-29-2009
20130085572Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.04-04-2013
20130079880ADJUSTABLE SPINE DISTRACTION IMPLANT - An adjustable spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume and/or cross sectional area in the spinal canal and/or neural foramen. The adjustable implant provides a spinal extension inhibitor. The implant includes elliptical or oval shaped adjustable member or spacer for positioning between and adjustably spacing apart the spinous processes.03-28-2013
20130079882FAR LATERAL SPACER - A PEEK spacer for use in the spine is disclosed. The PEEK spacer may be configured to fit through Kambin's Triangle and expand upon insertion.03-28-2013
20130079883RADIALLY EXPANDABLE SPINAL INTERBODY DEVICE AND IMPLANTATION TOOL - A spinal interbody device includes a base link having a first end and a second end, and a linkage including a first link having a first end and a second end and a second link having a first end and a second end. The first end of the first link is coupled to the first end of the base link at a first hinge, the second end of the first link is coupled to the first end of the second link at a second hinge; and the second end of the second link is coupled to the second end of the base link at a third hinge.03-28-2013
20130079881COMPOSITE TISSUE-ENGINEERED INTERVERTEBRAL DISC WITH SELF-ASSEMBLED ANNULAR ALIGNMENT - The present invention relates to a tissue-engineered intervertebral disc (IVD) suitable for total disc replacement in a mammal and methods of fabrication. The IVD comprises a nucleus pulposus structure comprising a first population of living cells that secrete a hydrophilic protein and an annulus fibrosis structure surrounding and in contact with the nucleus pulposus structure, the annulus fibrosis structure comprising a second population of living cells and type I collagen. The collagen fibrils in the annulus fibrosis structure are circumferentially aligned around the nucleus pulposus region due to cell-mediated contraction in the annulus fibrosis structure. Also disclosed are methods of fabricating tissue-engineered intervertebral discs.03-28-2013
20130079879Flexible Anchoring and Fusion Devices and Methods of Using the Same - A spacer member is provided that is configured to be implanted adjacent an anatomical structure. The spacer member defines a curved bore, a first opening in a side wall of the spacer member and a second opening in one of a top wall and a bottom wall of the spacer member. Each of the first opening and the second opening are in fluid communication with the curved bore. A flexible anchoring member is configured to be inserted through the side opening and through the curved bore of the spacer member such that a distal end portion of the flexible anchoring member extends out of the second opening at an angle relative to the one of the top wall and the bottom wall of the spacer member.03-28-2013
20130035763SPINAL FUSION DEVICE - A spinal fusion device is disclosed. The spinal fusion device includes a first endplate configured for fitting within a disc space and engaging with a first vertebra and a second endplate configured for fitting within the disc space and engaging with a second vertebra. The two endplates are separated by a single spacer that is positioned between the first endplate and the second endplate and maintains a pre-determined distance between the first endplate and the second endplate. The spacer contains an anterior end, a posterior end, a first lateral side, a second lateral side opposite to the first lateral side, a first surface that engages with the first endplate, a second surface that engages with the second endplate. Also disclosed are methods and instruments for implanting the spinal fusion device.02-07-2013
20120265308OSTEOGENIC FUSION DEVICE - An osteogenic fusion device is provided that includes opposite end pieces with an integral central element. The end pieces are sized to maintain the height of an intervertebral disc space. The central element has a smaller diameter so that the fusion device forms an annular pocket around the central element. An osteogenic material is disposed within the annular pocket between the opposite end pieces. The osteogenic material is in direct contact with the adjacent vertebral bone. The inventive osteogenic fusion device reduces stress-shielding and minimizes the radiopacity of the implant so that growth of the fusion mass can be continuously assessed. The osteogenic fusion devices of the present invention may be combined with other fusion devices to form an implant system. Methods of promoting fusion bone growth in the space between adjacent vertebrae utilizing devices and systems of the invention are also described.10-18-2012
20120265306SPINAL IMPLANT WITH ATTACHABLE BONE SECURING COMPONET - A spinal implant for insertion into an intervertebral disc space for intervertebral stabilization, the implant comprising a radiopaque substrate having bone securing serrations coupled to a radiolucent insert. The implant's radiolucent and radiopaque properties facilitate radiographic assessment of fusion across the disc space, assessment of osseointegration between vertebral endplates and osseointegration of the implant to adjacent vertebral end plates. The implant comprises an implant substrate having at least one insert cavity and bone securing serrations, and at least one insert component, whereby the insert component is configured to be securely coupled to the implant substrate via the at least one insert cavity thereby forming the implant. The implant preferably comprises a Titanium (Ti) substrate coupled to a polyetheretherketone (PEEK) insert component whereby the implant serrations are positioned between adjacent vertebral endplates when the implant is inserted into the disc space thereby securely positioning the implant between the adjacent vertebrae.10-18-2012
20120265305Pivoting Insertion Apparatus and Method - A pivoting insertion apparatus and method includes a main body comprising a shaft including a longitudinal channel cavity and a forked end coupled to the shaft; an actuator seated within the channel cavity; a hinge joint including a hinge joint main body coupled to the main body and a pair of arms coupled to the hinge joint main body; an outer sleeve including an outer shell surrounding a cavity that loosely contains the main body, actuator, and a portion of the hinge joint; a member housing including a member housing body that includes a main cavity housing the longitudinal member and a pair of arms coupled to the member housing body; and a linkage component including a first end coupled to the forked end of the actuator and a second end coupled to at least one of the member housing arms.10-18-2012
20120209387Methods and Systems for Repairing an Intervertebral Disc Using a Transcorporal Approach - The invention includes a system and methods for performing surgery on a spinal disc. The system includes an implantable bone plate with an access port to accommodate a bone cutting device, a spinal repair device insertable through the access port of the bone plate configured to occupy a surgically-formed vertebral channel from an anterior surface of the host vertebral body to a site central to an end plate of the host vertebral body, a trajectory control sleeve engageable to the bone plate to direct the trajectory of a cutting device, and a cutting device engageable within the trajectory control sleeve. Methods are directed to forming a vertebral channel and restoring the vertebral body and disc with devices that both repair the bone and the disc.08-16-2012
20130041471Laterally Deflectable Implant - A laterally deflectable asymmetric implant for implanting into a body may comprise a deflectable piece having distal and proximal ends and assuming a straightened insertion state. The backbone may abut or interconnect with said deflectable piece at the distal end of the deflectable piece. In a fully deflected state the implant may define an asymmetric shape, e.g. a D-shaped loop, defining an at least partially enclosed volume. The deflectable piece may comprise a sequence of segments interconnected at effective hinges. Longitudinal pressure applied to the proximal end of the deflectable piece (or applied to the backbone in an opposite direction) may cause relative longitudinal movement between the backbone and the proximal end of the deflectable piece and may generate outward horizontal movement of the deflectable piece away from the backbone. In one embodiment, the implant is implanted using lateral access into an anterior zone of a vertebra and deployed posteriorly.02-14-2013
20130041469INTERBODY AXIS CAGE - An interbody axis cage for promoting stabilization and alignment of the spine following a surgical procedure is described herein. The interbody axis cage of the present invention has alternating points of axes in the X and Y direction that allow for 3-dimensional motion. The axis cage is roughly cylindrical in shape and it incorporates a threaded outerbody to facilitate screwing in and placement. The axis cage of the present invention is cannulated and incorporates a flexible reamer/cutter to “tap” for cage placement.02-14-2013
20130041470METHOD FOR PROVIDING DISC NUCLEUS REPLACEMENT IN A SPINE - A spinal interbody device includes a compliant inner dampener in combination with a rigid outer material of outer shells. An inner dampener includes a rim with pillars and heads coupled to a complimentary inner structure of the outer shells.02-14-2013
20100042219EXPANDABLE CAGE FOR INTERVERTEBRAL BODY FUSION - An expandable cage for enhancing fusion of adjacent vertebral bodies includes a housing having a top and a bottom surface. A flexible mesh couples the top and bottom surfaces to allow movement of the top and bottom plate members relative to one another. An aperture formed on the expandable cage receives a selected material. The flexible mesh is in a normally collapsed position but enables the top and bottom plate members to move farther relative to one another when the housing is injected with the selected material. A portion of the flexible mesh expands laterally out of the housing when the housing is injected with the selected material. The top and bottom surfaces are made from carbon fiber, titanium, steel, implantable plastics, or other suitable material. The injected material may be a bone graft or a bone graft substitute (e.g., bone morphogenetic protein).02-18-2010
20100042221Reinforced molded implant formed of cortical bone - This invention relates to arthodesis for stabilizing the spine. More specifically, the present invention is directed to an intervertebral spacer formed of a bone material and to methods of treating patients having spinal deformities. The invention provides a spinal implant assembly comprising bone-derived components. The bone-derived components can be formed into modular units that can be assembled to provide a wide variety of implant configurations. In addition, the bone-derived components can form scaffold that can withstand the shear and impact forces necessary to insert the assembled implant into a disc space between adjacent vertebrae. In preferred forms the implants define an open spacer that serves as a depot for receipt of an osteoconductive material. The ostoegenic material is preferably a moldable filler that can form a molded reinforced implant.02-18-2010
20100042220BONE FIXATION SURFACES FOR INTERVERTEBRAL IMPLANTS - An intervertebral implant has an implant structure providing a fixation surface for fixation to the endplate of a vertebral body. The fixation surface includes two bone contact regions at different heights in an axial direction. A transition between the two contact regions has a stepped form including at least two steps.02-18-2010
20090157187LOAD SHARING INTERBODY FUSION DEVICE - The present invention is a load sharing intervertebral fusion device that allows for reconstruction of the proper disc space between two vertebral bodies while allowing bone material packed within the fusion device to share loading and stress for enhanced healing. The device includes two sections, an upper and lower section, separated by a bioresorbable spacer. The upper section slides relative to the lower section with the bioresorbable material being placed in load therebetween. The upper section and lower sections are effectively held apart, creating an initial fixed spacer for implantation of the intervertebral disc space. Openings in the implant construct allow for bone graft and bone substitutes to be placed within the implant to allow for fusion through the implant construct. After implantation and over a period of time based on bone resorbtion and remodeling, the spacer resorbs, thereby maintaining load on the bone graft material.06-18-2009
20090157186INTER-VERTEBRAL IMPLANT - The inter-vertebral implant comprises a first part (06-18-2009
20100106251IMPLANT FOR USE BETWEEN SPIRAL VERTEBRAE - The invention relates to an implant for use between the vertebrae (04-29-2010
20100106252SPINAL IMPLANTS HAVING MULTIPLE MOVABLE MEMBERS - An apparatus includes a spinal implant configured to be disposed within an interspinous process space between a first spinous process of a spinal column and a second spinous process of the spinal column. The spinal implant includes a plurality of elongate spacers. A first elongate spacer from the plurality of elongate spacers is configured to slidably contact at least a second elongate spacer from the plurality of elongate spacers. The spinal implant includes an elastic member configured to allow movement of each elongate spacer from the plurality of elongate spacers relative to the remaining elongate spacers from the plurality of elongate spacers within a predetermined range of motion.04-29-2010
20100331986BIOMATERIAL FOR ARTIFICIAL CARTILAGE - A biomaterial for an artificial cartilage is disclosed. The biomaterial eliminates the risk of possible adverse effects due to scattering of fragments of the biodegradable and bioabsorbable polymers and shows enhanced adhesiveness which allows more solid adhesion of the artificial cartilage to vertebral bodies and the like. The biomaterial includes an organized structure comprising organic fibers arranged in one of a multiaxial three-dimensional woven or knitted structure having three or more axes and a combined structure of the woven structure and the knitted structure; and a biodegradable and bioabsorbable pin provided inside the organized structure.12-30-2010
20090048678SPINAL DISC ANNULUS AUGMENTATION - Intervertebral disc implants are provided for augmenting the annulus of the disc in a manner to bear at least part of the axial and/or torsional load on the annulus so that rents, fissures and subsequent herniation of the disc are prevented or substantially delayed. An aspect of the subject devices is that they have an operative height dimension that is equal to or less than the disc height of a normally functioning, healthy disc. Methods and tools are also provided for the minimally invasive implantation of the device within an intervertebral disc.02-19-2009
20120185049EXPANDABLE INTERVERTEBRAL IMPLANT AND ASSOCIATED SURGICAL METHOD - The present invention provides an expandable intervertebral implant, including: a superior member configured to engage a superior intervertebral body; an inferior member configured to engage an inferior intervertebral body; and an expansion mechanism disposed between the superior member and the inferior member configured to selectively adjust a separation of the superior member from the inferior member; wherein the expansion mechanism includes a proximal wedge structure and a distal wedge structure that are relatively translated between the superior member and the inferior member, wherein the proximal wedge structure and the distal wedge structure are each coupled to the superior member and the inferior member by a plurality of aligned and/or staggered (i.e. nested) track structures and rail structures.07-19-2012
20120185048ARTIFICIAL SPINAL DISK PROSTHESIS - The present invention provides an intervertebral endoprosthesis disc for surgical implantation between two vertebrae having an endoprosthesis body comprising an anterior region and a posterior region designed to be positioned between a first vertebra and a second vertebra with a first and second movable insert positioned rotatably in anterior cavities and is rotatable to adjust the fasteners.07-19-2012
20120185047REINFORCED CARBON FIBER/CARBON FOAM INTERVERTEBRAL SPINE FUSION DEVICE - An intervertebral implant for placement in the intervertebral space between two adjacent vertebral bodies is provided. The implant comprises a hollow cage and a porous core received within the cage. The cage comprises a superior surface configured to contact a first vertebral body, an inferior surface configured to contact a second vertebral body, and an outer wall extending between the superior surface and inferior surface. The outer wall comprises an exterior surface defining the outer perimeter of the implant, and an interior surface defining an inner (hollow) space or void. The porous core is received within the inner space or void, and preferably fills the void. The core comprises a carbonaceous matrix comprising a continuous phase having a surface and defining a plurality of open spaces throughout said matrix. Suitable carbonaceous matrices are selected from the group consisting of carbon foam, graphite foam, and combinations thereof. Methods of making and using the same, along with kits to facilitate such use are also provided.07-19-2012
20120185046INTERBODY CONTAINMENT IMPLANT - An interbody containment implant includes a body configured for delivery along a surgical pathway and disposed adjacent vertebrae. The body defines a cavity. At least one biologically compatible agent is configured for disposal within at least the cavity. A barrier is connected to the body and configured to be deployed to prevent the agent from migrating into the surgical pathway. Methods of use are disclosed.07-19-2012
20090125111INTERVERTEBRAL DISC PROSTHESIS - An intervertebral-disc prosthesis for insertion into an intervertebral disc compartment has a first and a second constituent element (05-14-2009
20090125112Prosthetic Intervertebral Discs Implantable By Minimally Invasive, Posterior Approach, Surgical Techniques - The described devices are spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.05-14-2009
20100094427Movable Intervertebral Disc Prosthesis - A movable intervertebral disc prosthesis having a pivot point and adapted to be implanted between vertebra bodies to form a vertebrae segment. In an implanted state three-dimensional movement axes of the vertebrae segment intersect in the pivot point. The configuration of the prosthesis is such that a deliberate displacement or shifting of the pivot point can be carried out prior to, during and/or after the implantation.04-15-2010
20120165943SET COMPRISING AN INTERVERTEBRAL IMPLANT FOR IMMOBILISING A VERTEBRA WITH RESPECT TO ANOTHER AND AN INSTRUMENT FOR INSTALLING THIS IMPLANT - This set comprises an intervertebral implant (06-28-2012
20100070033Dynamic Six-Degrees-Of-Freedom Intervertebral Spinal Disc Prosthesis - The subject invention provides a modular six-degrees-of-freedom spatial mechanism for spinal disc prosthesis, with up to three rotational and up to three translational degrees-of-freedom within the entire workspace of a Functional Spinal Unit (FSU). The prosthetic disc mechanism consists of up to three independent cylindrical joints, each joint providing one linear and one rotational degree of freedom. The superior and inferior vertebral plates of the device anchor to the superior and inferior vertebrae of an FSU and the device maintains an inseparable mechanical linkage between those vertebrae for all normal motions and positions of the FSU. The device utilizes resilient spring elements, components that self-adjust in position and orientation, in conjunction with a fiber reinforced boot and toroidal belt, as well as a unique hydraulic damping system to accommodate dynamic and static forces and sudden shocks on the FSU. The device can adjust to maintain the appropriate, but changing, intervertebral spacing during normal FSU motion. Scaling, conjoined with cushioned, joint-limit stops, allows the device to realize almost any nominal spinal articulation, from the cervical to lumbar regions.03-18-2010
20110009972EXPANDABLE OSTEOSYNTHESIS CAGE - An expandable osteosynthesis implant has branches (01-13-2011
20110009970Inter-Body Implant - A system for implanting an inter-body device between adjacent vertebrae comprises an inter-body device having a plurality of cans secured to a flexible bridge and having a relief portion therebetween. An inserter tube and complementary bullnoses are advantageously secured to the vertebrae by an extension arm for securing the assembly precisely in place. A plurality of articulating trial implants are provided to test fit a disc space for the proper sized inter-body device.01-13-2011
20090306780INTERVERTEBRAL IMPLANT INTENDED FOR OSSEOUS FUSION - This implant (12-10-2009
20090118835Prosthetic Intervertebral Discs Having Rotatable, Expandable Cores That Are Implantable Using Minimally Invasive Surgical Techniques - The described devices are spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.05-07-2009
20090043390Parts Assembly and Part for a Prosthesis - The invention relates to a parts assembly for a prosthesis, particularly a cervical spine intervertebral disc prosthesis, comprising two base parts (02-12-2009
20130073048POSITIONING INSERT FOR INTERVERTEBRAL DISC DISORDER - A positioning insert for two adjacent vertebral bodies includes a plate like insert adapted to fix relative positions of the two adjacent vertebral bodies and provided with a sharp edge oppositely formed relative to the dull side and first holes defined through a side face of the plate like insert, wherein the sharp edge is formed to have an angle between 5 to 15 degrees; and an annular insert adapted to be inserted into a space between the two adjacent vertebral bodies and having second holes and a slot defined in a peripheral side face thereof to accommodate the plate like insert so as to have the plate like insert received in the slot.03-21-2013
20090093885ANATOMIC INTERVERTEBRAL SPACER AND THE APPLICATIONS THEREOF - A multi-layer intervertebral spacer (04-09-2009
20090093884Prosthetic Intervertebral Discs Having Expandable Cores That Are Implantable Using Minimally Invasive Surgical Techniques - The described devices are spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.04-09-2009
20110282456IMPLANTABLE DEVICE FOR SEALING A SPINAL ANNULAR FISSURE TEAR AND METHOD FOR DEPLOYING THE SAME - The present application relates to an implantable device (11-17-2011
20130073046Multi-piece Intervertebral Implants - Intervertebral implants for implanting into an intervertebral space are provided. The implants can comprise one or more layers that are operably attached to one another. An implant can comprise a first layer having a first mating surface that mates with a second mating surface of a second layer. The first mating surface and the second mating surface can have features that allow them to complement each other. The implants can include one or more bore holes for receiving a fixation member. The bore holes can be horizontal, vertical or diagonal. In some cases, the bore holes will be blind bore holes.03-21-2013
20130073047Multi-piece Intervertebral Implants - Intervertebral implants for implanting into an intervertebral space are provided. The implants can comprise one or more layers that are operably attached to one another. An implant can comprise a first layer having a first mating surface that mates with a second mating surface of a second layer. The first mating surface and the second mating surface can have features that allow them to complement each other. The implants can include one or more bore holes for receiving a fixation member. The bore holes can be horizontal, vertical or diagonal. In some cases, the bore holes will be blind bore holes.03-21-2013
20130073045METHOD AND APPARATUS FOR SPINAL INTERBODY FUSION INCLUDING FIXATION OR LOCKING PLATE - A spinal fusion implant has a parallelepiped main body with a rotatably mounted retention plate secured to its distal end. The distal retention plate has a first position co-planar with the main body and a second, deployed position normal to the plane of the main body. The distal retention plate is in the first position when the main body is inserted between adjacent vertebral bodies and is in the second position after the main body is inserted between adjacent vertebral bodies. In further embodiments, a proximal retention plate is permanently deployed in normal relation to the main body or both the distal and proximal retention plates are rotatably mounted and both are deployed co-planar to the main body before insertion and normal to the main body after insertion.03-21-2013
20130073044REMOVABLE, BONE-SECURING COVER PLATE FOR INTERVERTEBRAL FUSION CAGE - A secondary cover plate that contacts a stand-alone fusion cage without rigidly connecting to the cage, and instead only docks against the cage (or passes through a fixation cage) and is secured into the adjacent bone. The secondary cover plate is the last item that would be added to the fixation cage construct and would at least partially cover the head of one or more angled screws. The secondary cover plate could slidably engage the fixation cage without permanently snapping into any features of the cage itself. The secondary cover plate would then be final positioned by advancing into one or more adjacent vertebral bodies. The secondary cover plate advancing step could be achieved by tapping it into place (into bone) or rotating it into place (into bone) so that it is finally secured into the bone.03-21-2013
20110015748System, device and methods for replacing the intervertebral disc with a magnetic or electromagnetic prosthesis - One embodiment of the present application includes a spinal disk prosthesis with one end portion to form a load transmitting relationship with one vertebra of a patient's spine and another end portion to form a load transmitting relationship with another vertebra of the patient's spine. A tube connects the end portions together and a damping material is positioned inside the tube. The end portions each include a magnet to generate a corresponding magnetic field. These magnetic fields are oriented to provide a repulsive force between the end portions to provide a magnetic bearing.01-20-2011
20110015747EXPANDABLE INTERBODY SPACER DEVICE - An expandable interbody spacer (01-20-2011
20110015746Implants with Helical Supports and Methods of Use for Spacing Vertebral Members - The present application is directed to implants with inner and outer members positioned in a telescoping arrangement. The members may include helical supports to selectively adjust the height of the implant. The helical supports offer a large contact surface to prevent inadvertent reduction of the length due to application of a compressive force. In some embodiments, the helical support members may be shaped to facilitate movement of the members to increase the height. The shape may further prevent movement that would decrease the height. Some embodiments may also prevent relative rotation of the members. In use, the inner and outer members are moved apart to adjust the height of the implant to space apart the vertebral members. The members may further be constructed to prevent the members from moving together after insertion between the vertebral members.01-20-2011
20110015745Combined Spinal Interbody and Plate Assemblies - A spinal implant assembly combines a spinal interbody spacer with a spine plate. The combined spinal interbody spacer and spine plate assembly provides stabilization and torsional resistance to promote fusion of adjacent vertebrae of the spine. The interbody spacer is configured for placement within an intervertebral space between the adjacent vertebrae previously occupied by a spinal disc. The spinal plate is configured for attachment to anterior sides of the adjacent vertebrae (either on or within the vertebrae). The spinal plate may translate relative to the interbody spacer or it may be fixed relative to the interbody spacer. Translation of the spinal plate allows it to be affixed to the vertebrae in various positions and/or allow movement post installation. In one form, the spinal plate is defined by first and second spine plate or plate portions that are coupled to one another to allow rotation about each other. Ends of the first and second spine plates are received in/by the interbody spacer, while a pin extends through the interbody spacer to fix the first and second spine plates to the interbody spacer. In another form, the spinal plate is defined by first and second spine plates or plate portions that are movably retained by the interbody spacer. In call cases, the first and second spine plates each have one, two or more screw holes for accepting a bone screw for fixing the spine plates to the adjacent vertebrae.01-20-2011
20110015744PROSTHETIC SPINAL DISC SYSTEM - A prosthetic spinal disc system is provided. The prosthetic disc system has a nucleus component having an upper surface configured to engage a superior vertebra and a lower surface configured to engage an inferior vertebra, an anchor configured to affix to an anterior surface of at least one of the superior vertebra or the inferior vertebra, and a tether tying the nucleus component to the anchor. In such embodiments, the nucleus component further has a perimeter situated substantially between the upper surface and the lower surface of the nucleus component and the tether is at least partially situated on the perimeter of the nucleus component. In certain embodiments, the upper surface and the lower surface of the nucleus component are configured to allow for implantation of the disc system such that after a discectomy, no preparation of at least one of the superior and inferior vertebrae is necessary.01-20-2011
20110015743MULTI-DENSITY POLYMERIC INTERBODY SPACER - A multi-density polymeric interbody spacer formed from biocompatible material for osteoconductivity includes multiple density regions of different porosity to provide both strength and osteoconductivity. An interface region is formed between the density regions to provide both direct adhesion and mechanical interlocking between the different density regions to increase the strength of the multi-density polymeric interbody spacer. A method for forming the multi-density polymeric interbody spacer includes curing a first density region to achieve a first target porosity. A second density region may then be molded to the first density region to achieve a second target porosity. A portion of the second density region partially flows into pores of the first density region, providing direct adhesion and mechanical interlocking between the first and second density regions.01-20-2011
20130060339Intervertebral Fusion Implant - The present invention provides an intervertebral implant for implantation in a treated area of an intervertebral space between vertebral bodies of a spine. The implant includes a spacer portion having an inferior and superior surface, wherein the inferior and superior surfaces each have a contact area capable of engaging with anatomy in the treated area, and the inferior and superior surfaces define a through-hole extending through the spacer body. The present invention further provides screw holes extending from a side portion to the inferior and superior surfaces of the spacer portion and a plate portion rigidly coupled to the spacer portion through a coupling means, wherein the plate portion contains screws holes for receiving screws. A screw back out prevention mechanism adapted on the plate portion and prevents the back out of screws from the screw holes.03-07-2013
20130060338CELL CARRIER AND CELL CARRIER CONTAINMENT DEVICES CONTAINING REGENERATIVE CELLS - The present invention relates to a device comprising a cell carrier portion containing regenerative cells, e.g., stem and progenitor cells, and a cell carrier containment portion. The device is useful for the treatment of bone related disorders, including spinal fusion related disorders and long bone or flat bone related defects. The device may be used in conjunction with disclosed automated systems and methods for separating and concentrating regenerative cells.03-07-2013
20130060337Spinal Plate - Spinal plates with additional features to improve the stability of the interface between the plate and the underlying bone. A bone plate may include one or more sharp ridges along the periphery of its underside. When attached to bone, the ridge digs into the bone and increases stability. A bone plate may alternatively or additionally include one or more holes for optional spikes, which may be inserted once the plate is attached to the bone. By separating the spikes and including them as an optional component, the plate may enhance stability while reducing or eliminating the chance of the spike injuring the patient. Furthermore, bone screws may incorporate alternating notches and ridges into the head of the screw. The notches and ridges may interface with a set screw, thereby preventing rotation and loosening of the screw.03-07-2013
20120310356TRANSFORAMINAL INTERSOMATIC CAGE FOR AN INTERVERTEBRAL FUSION GRAFT AND AN INSTRUMENT FOR IMPLANTING THE CAGE - This disclosure presents various embodiments of a transforaminal intersomatic cage for an intervertebral fusion graft, and an instrument and method for implanting the cage, an embodiment of the cage having a body in the shape of a circular arc and comprising a lateral concave surface, a lateral convex surface, a straight upper surface, a straight lower surface and an end wall having at least one hole, called the end hole, designed to receive a rod of an instrument for implanting the cage between the vertebrae, wherein: the end hole has an orientation that is more or less tangential to the circular arc described by the body; the extremity opposite to the end wall of the body includes a return part extending the body toward the center of the circle on which the circular arc described by the body lies.12-06-2012
20120310354SPINAL IMPLANT HAVING VARIABLE RATIOS OF THE INTEGRATION SURFACE AREA TO THE AXIAL PASSAGE AREA - An interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, and a substantially hollow center in communication with a vertical aperture. The body, vertical aperture, and bone contact surfaces of the implant each have a surface area that may be independently varied to enhance load support and facilitate implant integration with vertebral bone.12-06-2012
20120310353TRIAL INTERVERTEBRAL DISTRACTION SPACERS - An orthopedic spacer device comprising a spacer body having an external surface that includes at least two relative angle designation marks such that a rotational angle of the spacer body relative to a known reference is determinable.12-06-2012
20090299479SUTURE GUIDED IMPLANT - Methods and apparatuses are disclosed relating to surgical implants having one or more strands extending from the implant to assist with the installation of the implants into patients. In one example, the strand may be used during installation to provide a constant reference to the trailing edge of the implant in situ. In another example, the strand may be used during installation to provide guidance to the implant for instrumentation. In another example, the strand may be used during installation to provide the ability to pull back on the implant. In another example, the strand allows for novel designs of installation and removal instruments.12-03-2009
20090270992ARTIFICIAL INTERVERTEBRAL DISC IMPLANT - The invention relates to an artificial intervertebral disc for placement between adjacent vertebrae. The artificial intervertebral disc is preferably designed to restore disc height and natural disc curvature, allow for a natural range of motion, absorb shock and provide resistance to motion and axial compression. Furthermore, the intervertebral disc may be used in the cervical, the thoracic, or the lumbar regions of the spine. The artificial intervertebral disc may include either singularly or in combination: an interior including at least one spring member preferably incorporating an arcuate surface member, a flexible core, the flexible core preferably being a slotted core, a ring spring, a winged leaf spring, a leaf spring, or the articulating member preferably being attached to one of the endplate by an intermediate shock absorbing element. Moreover, the interior may include a fluid; a valve for injecting fluid into the interior of the disk; a central region having a stiffness that is preferably greater than the stiffness of the outer regions thus enabling the disc to pivot about the central region. The central pivot may be formed by a center opening, a central chamber, an inner core or a central cable.10-29-2009
20090270991Spinal fusion implant with bone screws - An interbody spinal fusion implant made of a material other than bone adapted for placement across an intervertebral space formed across the height of a disc space between two adjacent vertebral bodies. The implant has a leading end that is curved to form a portion of a circle from side to side, sides that are at least in part straight, and a trailing end with a bone screw receiving hole for receiving at least one bone screw to engage the vertebral bodies.10-29-2009
20090270990Vertebral Cage Device With Modular Fixation - Intervertebral arthrodesis for insertion in an intervertebral space separating opposite faces of two adjacent vertebrae has a ring shaped intervertebral cage having a bar that extends perpendicular to the axis of the spine. The bar has a height less than the rest of the cage. A surface of the cage contacting the vertebrae has an undulating shape for limiting sliding of the cage in a plane parallel to the vertebrae faces.10-29-2009
20090270988ARTIFICIAL SPINAL DISC IMPLANT - An artificial spinal disc implant is provided that may be implanted between adjacent vertebrae in the spine to replace, repair or augment a natural spinal disc. The spinal disc implant may be characterized by one or more biomechanical properties that approximate those of a natural spinal disc. The implant is also designed to be sufficiently secured to the vertebrae so that it may function in the body for long time periods.10-29-2009
20090270987Expandable vertebral implants and methods of use - Illustrative embodiments disclosed herein are directed to vertebral implants and methods of use. In one embodiment, the implant includes first and second end members with an intermediate cage. The cage may be inflatable such that the implant is positionable between a collapsed state with a first reduced height to facilitate insertion between the first and second vertebral members, and an extended state with a second height greater than the first height that positions the first end member against the first vertebral member and the second end member against the second vertebral member to maintain an intervertebral axial space.10-29-2009
20090076613INTERVERTEBRAL DISC PROSTHESIS - An intervertebral disc prosthesis includes a base plate, a top plate, a central axis extending through the center of the base plate and the top plate, and at least two springs arranged between the base plate and the top plate. The springs each have a loop-shaped section and two free ends. One of the free ends of the springs is connected to the base plate and the other one of the free ends is connected to the top plate. The loop-shaped section is directed away from the central axis.03-19-2009
20090076611Temporarily Bound Prosthetic Intervertebral Discs Implantable By Minimally Invasive Surgical Techniques - The described devices are bound spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.03-19-2009
20120226358SPINAL FUSION CAGE WITH REMOVABLE PLANAR ELEMENTS - The present disclosure relates to a spinal fusion impactor tool that includes an attachment means for securing an implant device to the distal end of the tool, a means for adjusting the angle of the distal head relative to the handle to better position the implant for introduction into the implant site, means for remotely releasing the implant device at the distal end and a clamp device on the shaft of the tool to secure tabs, attachments and other devices. The impactor tool is preferably used in conjunction with implantation of an intervertebral fusion cage that is equipped with shims having tabs or other removing means, but may also be used to introduce, for example, an implant, graft, fusion device, wedge or distractor device into any joint space or bony region in preparation for implantation.09-06-2012
20120226357EXPANDABLE INTERVERTEBRAL IMPLANT AND ASSOCIATED SURGICAL METHOD - The present invention provides an expandable intervertebral implant, including: a superior member configured to engage a superior intervertebral body; an inferior member configured to engage an inferior intervertebral body; and an expansion mechanism disposed between the superior member and the inferior member configured to selectively adjust a separation of the superior member from the inferior member; wherein the expansion mechanism includes a proximal wedge structure and a distal wedge structure that are relatively translated between the superior member and the inferior member, wherein the proximal wedge structure and the distal wedge structure are each coupled to the superior member and the inferior member by a plurality of aligned and/or staggered (i.e. nested) track structures and rail structures; and wherein a load-bearing portion of a bottom surface of the superior member is configured to mate vertically with a load-bearing portion of a top surface of the inferior member when the expansion mechanism is undeployed via conformal protruding and recessed features.09-06-2012
20120226356EXPANDABLE CORPECTOMY CAGE - A corpectomy cage is provided with upper and lower telescoping members which move axially between extended and retracted positions. A fixed length sleeve fits over the telescoping members. The sleeve is load bearing to support axial loads on the cage from vertebral bodies. The sleeve also prevents the telescoping members from retracting and encloses an internal cavity within the cage for packing bone fusion material.09-06-2012
20090030522Method and Apparatus for the Treatment of the Intervertebral Disc Annulus - The present invention provides methods and devices for treating the annulus of an intervertebral disc. The methods and devices can employ an expandable treatment device which is deployed at least partially in the subannular space. Fixation devices and methods are also disclosed, which help to secure the treatment device in place.01-29-2009
20090030520FIXATION DEVICE FOR BONES - A fixation device for bones includes a member which is to be fixed to one or more bones and has at least one bore for receiving a bone screw, wherein the at least one bore comprises a first internal thread portion. The bone screw has a first shaft section provided with a first external thread portion arranged to cooperate with the internal thread portion of the at least one bore, and a head section having a diameter larger than that of the shaft section to provide a catch arranged to engage with a stop formed in the bore. The bone screw further has a second shaft section which includes a clearance groove extending between the catch of the head section and the external thread of the first shaft section. The clearance groove allows disengagement of the two thread portions, such that the bone screw is prevented from being unscrewed off the bore when it is loosened within the adjacent bone. The member can also include a side wall of a cage used in an intervertebral implant device, or can represent a plate of a bone plate assembly.01-29-2009
20130066429EXPANDING VERTEBRAL BODY IMPLANT - An expandable medical implant for supporting bone structures is disclosed. The implant may include an outer member and an inner member receivable in the outer member. One of the outer and inner members includes a tapered surface and the other of the outer and inner members includes a scalloped surface. The implant may also include a locking element disposed between the tapered surface and the scalloped surface. The tapered surface may be movable relative to the locking element to transversely shift the locking element into engagement with the scalloped surface to inhibit a decrease in the overall implant height.03-14-2013
20130066428FIXATION DEVICE FOR BONES - A fixation device for bones includes a member which has at least one bore for receiving a bone screw, wherein the at least one bore comprises a first internal thread portion. The bone screw has a first shaft section provided with a first external thread portion arranged to cooperate with the internal thread portion of the at least one bore, and a head section having a diameter larger than that of the shaft section to provide a catch arranged to engage with a stop formed in the bore. The bone screw further has a second shaft section which includes a clearance groove extending between the catch of the head section and the external thread of the first shaft section. The clearance groove allows disengagement of the two thread portions, such that the bone screw is prevented from being unscrewed off the bore when it is loosened within the adjacent bone.03-14-2013
20120116520METHOD AND APPARATUS FOR THE TREATMENT OF THE INTERVERTEBRAL DISC ANNULUS - The present invention provides methods and devices for treating the annulus of an intervertebral disc. The methods and devices can employ an expandable treatment device which is deployed at least partially in the subannular space. Fixation devices and methods are also disclosed, which help to secure the treatment device in place.05-10-2012
20120116519Surgical Extractor and Method of Removing Intervertebral Disc Prosthesis - A method of removing an intervertebral disc prosthesis from an intervertebral disc space includes the steps of: a) providing a surgical extractor with two legs; b) individually inserting the legs, while the legs are completely detached from each other, into the intervertebral disc space; c) rotating the legs so that they take up a locking position in which a pulling force can be applied by the legs to the intervertebral disc prosthesis; d) connecting the legs to an extraction element; and e) pulling at the extraction element so that the legs apply a pulling force to the intervertebral disc prosthesis.05-10-2012
20120116518Selectively Expanding Spine Cage, Hydraulically Controllable In Three Dimensions for Vertebral Body Replacement - A selectively expanding spine cage has a minimized diameter in its unexpanded state that is smaller than the diameter of the neuroforamen through which it passes in the distracted spine. The cage conformably engages between the endplates of vertebrae to effectively distract the anterior disc space, stabilize the motion segments, eliminate pathologic spine motion, or effect vertebral body replacement. Expanding selectively (anteriorly, along the vertical axis of the spine) rather than uniformly, the cage height increases and holds the vertebrae with fixation forces greater than adjacent bone and soft tissue failure forces in natural lordosis. Stability is thus achieved immediately, enabling patient function by eliminating painful motion. The cage shape intends to rest proximate to the anterior column cortices securing the desired spread and fixation, allowing for bone graft in, around, and through the implant for arthrodesis whereas for arthroplasty it fixes to endpoints but cushions the spine naturally.05-10-2012
20120116517Device for Establishing an Anatomical Reference Point of an Intervertebral Disc - The disclosure relates to a device for establishing an anatomical reference point of an intervertebral disc for the attachment of at least one instrument Intended for the implantation, through a posterior or posterolateral approach, of a disc prosthesis or osteosynthesis cage as a replacement for the intervertebral disc. The device includes at least two means for bone anchorage each intended to be attached to a vertebra adjacent to the disc, a coupling element for the instrument and elements for adjusting the position of the coupling element relative to the position of the disc.05-10-2012
20120116515DEMINERALIZED CORTICAL BONE IMPLANTS - Implants comprising a plurality of separate cortical bone units, which have been at least partially demineralized and are osteoinductive, are described herein. The implants can be used in methods for treating bone. Also, disclosed are methods for treating spinal conditions using these implants. The spinal conditions include but are not limited to repairing damage to or defects in the spine, such as fractures in a vertebral body or degeneration of spinal discs.05-10-2012
20120116513Anatomic total disc replacement - An artificial spinal disc prosthesis that can be implanted to replace a damaged natural spinal disc. A nucleus of compressible elastomeric material is surrounded by a winding of a slender strand of flexible tension-bearing material oriented at a pitch angle relative to a central axis. The orientation of the winding provides the prosthesis a limited amount of freedom of movement and flexibility. A pair of end caps of the prosthetic implant include angulated grooves that allow for insertion of the device between vertebral bodies from any of several directions. Special fasteners provide protruding points useful in anchoring the prosthesis.05-10-2012
20110046744INTERVERTEBRAL SPACER DEVICE HAVING RECESSED NOTCH PAIRS FOR MANIPULATION USING A SURGICAL TOOL - Instrumentation for implanting an artificial intervertebral disc includes static trials and a dynamic trial for determining the appropriate size of disc to be implanted, static trial holders for manipulating the static trials, inserter/impactors for inserting and removing the static trials and for inserting the artificial intervertebral discs, repositioners/extractors for repositioning and extracting the static trials or the artificial intervertebral discs, and a leveler for setting the proper position of the artificial intervertebral disc. Methods for using the same are also disclosed. Features for artificial intervertebral discs and intervertebral spacer devices useful for manipulation by the instrumentation are also disclosed.02-24-2011
20090118836Intervertebral Prosthesis for Supporting Adjacent Vertebral Bodies Enabling the Creation of Soft Fusion and Method - An intervertebral prosthetic disc for replacing a damaged natural disc includes upper and lower vertebral body engaging surfaces, an exterior wall and one or more generally vertically oriented bone channels of limited cross-sectional area to allow bone to form and fuse into continuous or discontinuous struts between the bodies. The stiffness of the disc, while supporting the bodies, allows the distance therebetween to narrow sufficiently when subjected to a predetermined load such as the patient standing, walking, etc., to transfer sufficient energy to the bone struts to create one or more nonunion joints or pseudoarthrosis at locations along the struts. The disc includes stops to limit the movement thereof to an amount sustainable by the disc without resulting in fatigue failure.05-07-2009
20130166028COMPOSITE LAYER INTERVERTEBRAL RETRIEVING DEVICE - A composite layer intervertebral retrieving device implantable between two vertebrae is provided, including a main carrier having a middle layer, and a securing groove on respective surfaces; multiple securing pieces stably coupled to the securing grooves; wherein the middle layer is a macromolecular material having an elastic modulus of between 2 to 22 GPa, close to the original elastic modulus of the spine of between 12 to 18 GPa. The securing pieces are affinitive to and easily fused with osteocytes, and capable of medically imaging. The securing pieces are coupled to the securing grooves, and when the device is implanted between vertebrae, the securing pieces come into direct contact with the osteocytes of the neighboring vertebrae, with securing bulges thereof pressing against the osteocyes, and the middle layer has an elastic modulus similar to that of the vertebrae to prevent the stress shielding effect.06-27-2013
20130166029Anchoring Device and System for an Intervertebral Implant, Intervertebral Implant and Implantation Instrument - Anchoring devices, anchoring systems for intervertebral implants, intervertebral implants, and instruments and methods for implanting implants are disclosed. In preferred configurations, these various objects share the feature of comprising or cooperating with an anchoring device having a body comprising at least one curved plate elongated along a longitudinal axis, designed to be inserted through a passage crossing at least a part of implant, in order to penetrate into at least one vertebral endplate and attach implant onto this vertebral endplate by means of at least one stop retaining the implant, characterized in that the body comprises at least one longitudinal rib on at least a part of at least one of its faces, said rib being designed to cooperate with a groove made in passage of implant. In some preferred configurations, anchoring device comprises withdrawal stops or latches, and/or means for withdrawing the anchor from an inserted position.06-27-2013
20130166030INTERVERTEBRAL IMPLANT - An intervertebral implant is provided comprising a single piece hollow body with an upper wall configured to engage a first vertebral end plate and a lower wall configured to engage a second vertebral end plate, with two opposite sidewalls connecting the upper wall and the lower wall, respectively, and with a load transmitting part configured to transmit load between the upper wall and the lower wall; wherein the body is configured to assume a compressed condition in which a distance between the upper wall and the lower wall defines a first height (h06-27-2013
20130166031INTERVERTEBRAL SPACER, SYSTEM AND METHOD TO DISTRACT ADJACENT VERTEBRAE AND INSERT A SPACER - Intervertebral spacer being a longitudinal body with a cross-section that has a long axis and a short axis, at least one component of which may be deployed following an axis that is essentially perpendicular to the longitudinal body's long axis and to the axis of the spine.06-27-2013
20130166032INTERVERTEBRAL IMPLANTS, SYSTEMS, AND METHODS OF USE - An intervertebral implant frame that is configured to be attached to a spacer body can include a pair of arms that extend longitudinally from a support member such that the arms extend substantially around the spacer body. The arms may be configured to expand, crimp, or otherwise engage the spacer body to thereby hold the spacer body to the frame. The spacer body may be made from bone graft.06-27-2013
20130166027Lateral Cage with Integrated Plate - An intervertebral fusion cage having a plate pivotally attached thereto. The plate and cage are pivotally coupled but move independently of each other. The plate is made up of two smaller plate halves: a superior plate half and an inferior plate half Both plate halves form the larger plate. The plates are joined using a cross pin that provides a pivot point about which the plate halves rotate. The same pin also joins the plate halves to the cage, thus allowing the plate halves to pivot about the cage. It is believed that the device of the present invention will reduce the difficulties in placing a lateral plate down a port and manipulating it into position. Mating the plate to the cage will reduce the chances of micromotion and improve fusion rate, resulting in improved patient outcomes.06-27-2013
20090012622Disc Fusion Implant - An implant prosthesis is disclosed. In some cases, the prosthesis can take the form of an implant strip may be implanted through the use of a surgical procedure that minimizes incision sizes and may be considered less invasive than typical spinal implant procedures.01-08-2009
20090012621Disc Fusion Implant - An implant prosthesis is disclosed. In some cases, the prosthesis can take the form of an implant strip may be implanted through the use of a surgical procedure that minimizes incision sizes and may be considered less invasive than typical spinal implant procedures.01-08-2009
20090012620Implantable Cervical Fusion Device - The present invention relates to an implantable intervertebral device that is made of a bone body substantially conforming in size and shape with the enplates of adjacent vertebrae. The bone body has a top surface, a bottom surface, and, a cavity, which extends from the top surface to the bottom surface. The cavity is filled with osteoconductive or osteoinductive graft material.01-08-2009
20120271422EXPANDABLE IMPLANT SYSTEM AND METHODS OF USE - A spinal implant includes a first component defining a surface. A second component is movable relative to the first component and defines a surface. An intermediate component is engageable with the first component and the second component. The intermediate component is configured for relative movement along the surface of the second component and is configured for relative movement along the surface of the first component in a first axial direction and a second, opposite axial direction such that movement of the intermediate component moves the second component relative to the first component between a first configuration and a second configuration. Methods of use are disclosed.10-25-2012
20120271421Apparatus and Method for Inserting Intervertebral Implants - An instrument for inserting an implant between vertebrae includes an upper and a lower ramp each having a respective proximal and a distal end. A bracket assembly is coupled to the upper and lower ramps at the proximal ends. The bracket assembly biases the upper and lower ramps closed at the distal end. A drive member has a longitudinal axis and a screw thread thereon. The drive member is disposed between the upper and lower ramps and extends through a passage in the bracket assembly. An adjustable spreader is operably coupled to the drive member and movable between the upper and lower ramps along the longitudinal axis by rotation of the drive member. The adjustable spreader separates the upper ramp from the lower ramp during forwardly movement along the longitudinal axis. An implant holder is coupled to the adjustable spreader.10-25-2012
20080288076Spinal interbody spacer - A spinal spacer for engagement between vertebrae includes a body having a substantially contoured first end surface at a distal end and a second end surface opposite thereto at a proximal end. The body extends between the first and second end surfaces to define top and bottom vertebral engaging surfaces that are opposed to one another. The body extends between the top and bottom vertebral engaging surfaces to define opposed side surfaces. The top and bottom vertebral engaging surfaces intersect with the side surfaces to provide a substantially quadrilateral cross-section with rounded corners. The top and bottom vertebral engaging surfaces have a substantially streamlined convex profile. The surfaces converge at the distal end to define a substantially atraumatic blunt nose having a tip configured with planar and/or convex surfaces.11-20-2008
20120101582Implants and Methods for Spinal Fusion - An implant is provided for performing spinal fusion. The implant includes an implant body having a leading side and a trailing side at opposing ends along a longitudinal axis. Between the leading side and trailing side are an upper surface, a lower surface, an anterior side, and a posterior side. At least one keel structure is provided extending from the implant body for penetration into an adjacent vertebral body. A trial sizer and keel cutter may be utilized to form keel channels within the vertebral body to receive the keel structure.04-26-2012
20120101581INTERVERTEBRAL IMPLANT - The intervertebral three-dimensional structure comprises a top side, an underside, a front face, a rear face, and a plurality of boreholes designed to receive affixation elements.04-26-2012
20120101580Intervertebral Implant - An intervertebral implant includes a three-dimensional body and a securing plate. The three-dimensional body includes a front surface and a rear surface. The three-dimensional body further includes a plurality of boreholes for accommodating fixation elements. The intervertebral implant also includes a front plate disposed at the front surface of the three-dimensional body and having a plurality of boreholes. A securing plate can be fastened to the front plate.04-26-2012
20120101579PROSTHETIC INTERVERTEBRAL DISC WITH MOVABLE CORE - An intervertebral disc for a prosthetic intervertebral disc system for insertion from a posterior of the spine includes first and second end plates sized and shaped to fit within an intervertebral space, each end plate having a vertebral contacting surface and an inner surface, a first bearing surface on an inner surface of the first end plate, and a second bearing surface on an inner surface of the second end plate. A mobile core is configured to be received between the first and second bearing surfaces, the first and second end plates being articulable and rotatable relative to each other via sliding motion of at least one of the first and second bearing surfaces over the core. The core is movable with respect to at least one of the first and second end plates.04-26-2012
20120101578DEVICES CONTAINING A CHEMONUCLEOLYSIS AGENT AND METHODS FOR TREATING AN INTERVERTEBRAL DISC OR SPINAL ARACHNOIDITIS - Effective devices and methods using a chemonucleolysis agent are provided for treating an intervertebral disc or treating spinal arachnoiditis. The devices and methods comprise a chemonucleolysis agent to degrade or to shrink at least a portion of the intervertebral disc. In some embodiments, the methods and devices are configured to immediately release an effective amount of the chemonucleolysis agent within 24 hours and provide sustained release of the chemonucleolysis agent over a period of up to one year to treat the intervertebral disc. In some embodiments, the chemonucleolysis agent in the device is administered in or near the intrathecal space and/or thecal sac to treat spinal arachnoiditis.04-26-2012
20120059473Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.03-08-2012
20120179258SPINAL SPACER DEVICES, TOOLS, AND METHODS - A spacer device for spinal fixation, such as in corpectomies and discectomies, includes a core and two end plates mounted to the core. One end plate is mounted to each respective end of the core. The core can be configured and adapted to be adjustable to allow for contraction and/or distraction of the end plates. The end plates can include apertures therethrough to facilitate osseointegration of the spacer device within a patient's spine. The angle of the endplates can each be adjusted with respect to the core of the spacer device, for example to accommodate lordosis. A containment mesh is included around the spacer device, wrapping circumferentially around the end plates, and spanning from end plate to end plate. The containment mesh defines a containment volume between the end plates for containing bone replacement materials such as allograft or man-made materials.07-12-2012
20120215318IMPLANT WITH OPENINGS ADAPTED TO RECEIVE BONE SCREWS - A spinal fusion implant for surgical implantation at least in part within a disc space between two adjacent vertebral bodies in a segment of a human spine. The implant has a trailing end with bone screw receiving holes that each have a diameter that intersects with one of the upper and lower surfaces of the implant to form a perimeter that extends from an exterior surface of the trailing end towards an interior surface of the trailing end.08-23-2012
20100057206INTERVERTEBRAL FUSION IMPLANT - The present invention provides an intervertebral implant for implantation in a treated area of an intervertebral space between vertebral bodies of a spine. The implant includes a spacer portion having an inferior and superior surface, wherein the inferior and superior surfaces each have a contact area capable of engaging with anatomy in the treated area, and the inferior and superior surfaces define a through-hole extending through the spacer body. The present invention further provides screw holes extending from a side portion to the inferior and superior surfaces of the spacer portion and a plate portion rigidly coupled to the spacer portion through a coupling means, wherein the plate portion contains screws holes for receiving screws. A screw back out prevention mechanism adapted on the plate portion and prevents the back out of screws from the screw holes.03-04-2010
20110282457CONNECTABLE INTERBODY IMPLANT - An intersomatic implant (11-17-2011
20110282453FIXATION DEVICE AND METHOD - An implantable orthopedic stability device is disclosed. The device can have a contracted and an expanded configuration. A method of using the device between adjacent vertebral body surfaces surfaces for support and/or fixation of either or both of the adjacent vertebrae is also disclosed.11-17-2011
20110282455Stackable Intervertebral Devices and Methods of Use - An intervertebral device for spacing apart vertebral members comprises a plurality of stackable shims including at least a first shim and a second shim. The first shim includes a first body with a first portion of a male-female connector, and a removable guide that is affixed to the first body and extends along at least a portion of the first body. The second shim includes a second body with a second portion of the male-female connector. A longitudinal passage extends through the second body and is sized to receive the guide on the first body. The second shim is moveable relative to the first shim with the guide disposed in the passage between a disengaged position and an engaged position. In the engaged position, the first shim is stacked on the second shim.11-17-2011
20110282454Interbody Spinal Implant Having Internally Textured Surfaces - An interbody spinal implant including a body, the body comprising: a top surface; a bottom surface; opposing lateral sides; and opposing anterior and posterior portions; the top surface, bottom surface, opposing lateral sides, internal wall surface, and opposing anterior and posterior portions defining a substantially hollow center having a single vertical aperture defining an internal wall surface, the single vertical aperture (a) extending from the top surface to the bottom surface, (b) having a size and shape predetermined to maximize the surface area of the top surface and the bottom surface available proximate the anterior and posterior portions while maximizing both radiographic visualization and access to the substantially hollow center, and (c) defining a transverse rim, wherein at least a portion of the internal wall surface has a roughened surface topography.11-17-2011
20130023991BI-DIRECTIONAL FIXATING TRANSVERTEBRAL BODY SCREWS AND POSTERIOR CERVICAL AND LUMBAR INTERARTICULATING JOINT CALIBRATED STAPLING DEVICES FOR SPINAL FUSION - A self-drilling bone fusion screw apparatus is disclosed which includes at least first and second sliding boxes. A first screw member having a tapered end and a threaded body is disposed within the first sliding box, and a second screw member having a tapered end and a threaded body disposed within the second sliding box. An adjuster adjusts the height of the sliding boxes. The screw members are screwed into vertebral bodies in order to fuse the vertebral bodies together. A plurality of the self-drilling bone fusion screw apparatuses may be attached together and/or integrated via a plate or cage. Also disclosed is a cervical facet staple that includes a curved staple base and at least two prongs attached to the bottom surface of the curved staple base.01-24-2013
20130023990Minimally invasive apparatus to manipulate and revitalize spinal column disc - A method and apparatus are provided to manipulate and revitalize a spinal column disc while minimizing or preventing the removal of material comprising the disc. The method allows a device to be inserted in the disc either through a pre-existing rupture or through an opening formed in the front, back, or sides of the disc. Increasing the space between the vertebra bounding the disc or removing disc material often is not necessary to insert the device in the disc. The device generates internal traction or other forces acting on the disc to alter the shape of the disc. The shape of the disc is altered to relieve pressure on nerves adjacent the disc. The shape of the disc is also altered to draw nuclear hernias back into the interior of the disc and to produce a disc shape that improves functioning of the disc.01-24-2013
20110130838INTERVERTEBRAL IMPLANT AND INSTALLATION TOOL - An intervertebral implant (06-02-2011
20110282459ARTICULATING INTERBODY SPACER, VERTEBRAL BODY REPLACEMENT - An interbody spacer implant assembly for interbody fusion in a vertebral body and a method of insertion comprises a plurality of links and an elongated connector mechanism adapted to retain the plurality of links and allow the plurality of links to articulate with respect to one another. An interbody spacer implant apparatus for interbody fusion in a vertebral body comprises a plurality of individually articulating links and a connector mechanism adapted to retain the plurality of links and allow the plurality of links to articulate with respect to one another, wherein the connector mechanism is dimensioned and configured to have a length-to-width ratio greater than a length-to-width ratio of each of the plurality of links. The apparatus may further comprise an insertion rod adapted to insert the plurality of links and the connector mechanism into the vertebral body.11-17-2011
20110282458IMPLANTABLE SPINAL DISK - Spinal disk including a shell, first endplate, second endplate and core. The shell includes sidewalls, back wall, front wall, top wall and bottom wall defining a compartment. The first endplate includes a first base, first top and first attachment. The first base is retained in the compartment. The first top is disposed in a first opening in the top wall forming a contact surface continuous with a surface of the top wall. The first attachment extends from the first top portion. The second endplate includes a second base, second top and second attachment. The second base is retained in the compartment. The second top is disposed in a second opening in the bottom wall forming a contact surface continuous with a surface of the bottom wall. The second attachment extends from the second top portion. The core is disposed in the compartment between the first endplate and the second endplate.11-17-2011
20130090733IMPLANT WITH COMPLIANT LAYER - An intervertebral spacer having an upper layer, a lower layer and at least one non-planer compliant layer. The non-planer compliant layer is disposed between the lower layer and the upper layer and includes a portion that extends outside a lateral plane in which the compliant layer resides. The non-planar compliant layer made of a material that is more yielding than the upper layer and the lower layers, and may have a cross-section that is z-shaped, u-shaped, sinusoidal-shaped, zigzag shaped, etc.04-11-2013
20110301713INTERVERTEBRAL IMPLANT AND FACE PLATE COMBINATION - An intervertebral implant assembly includes an implant member and a retention member. The implant member includes a body portion and an attaching portion. The body portion includes first and second surfaces adapted to engage first and second vertebral bodies, respectively. The attaching portion defines a first guide portion that leads into the first surface. The retention member is detachably coupled to the attaching portion of the implant member. In particular, the attaching portion of the implant member is at least partially disposed in the retention member. The retention member defines an access bore configured and dimensioned to receive a bone screw therein. The access bore is in communication with the first guide portion, whereby when the bone screw is inserted through the access bore the bone screw is directed to the first vertebral body through the first guide portion.12-08-2011
20120290089VERTEBRAL SPACER - A vertebral spacer includes a body having a top side, a bottom side, a front side, and a rear side. The top side is configured to be positioned adjacent to a first vertebra and the bottom side is configured to be positioned against a second vertebra. First, second, third and fourth bores extend through the body. First and second compression fasteners disposable in the first and third bores, and first and second locking fasteners disposable in the second and fourth bores. The first compression fastener and the first locking fastener cooperate to apply and lock a first predetermined compression force between the body and the first vertebra. The second compression fastener and the second locking fastener cooperate to apply and lock a second predetermined compression force between the body and the second vertebra.11-15-2012
20110276142Articulating Spacer - Spinal implants are disclosed. One spinal implant includes a support body, an articulating element, a blocking member and a motion limiting member. The support body includes a superior end surface and a lower end surface having teeth. In between the superior end surface and the lower end surface is a recess formed in a sidewall of the support body for receiving the articulating element. The blocking member can be received in the recess to prevent inadvertent back-out of the articulating element from within the recess. The articulating element can articulate in one or more directions, thereby allowing articulation of the spinal implant into a desired position within a disc space.11-10-2011
20110301714EXPANDABLE INTERVERTEBRAL IMPLANT - An intervertebral implant assembly includes first and second support members and a retention member. The first and second support members are configured to engage first and second vertebral bodies, respectively. The first and second support members define first and second guide portions, respectively. In particular, the first and second support members are slidably movable relative to each other. The retention member includes a face plate and an arm member extending from the face plate. The arm member is disposed between the first and second support members to maintain a relative position of the first and second support members. The face plate defines an access through hole in communication with the first and second guide portions.12-08-2011
20110301715DYNAMIC GUARD AND METHOD FOR USE THEREOF - A guard and method for guiding a bone removal device to form an implantation space in the human spine and, if desired, for inserting a spinal implant into the implantation space.12-08-2011
20110301712SYSTEM AND METHODS FOR A LATERALLY EXPANDING IMPLANT - An implant for a spinal column and a method for inserting the same into a patient is disclosed. The implant includes an elongated body positionable in a spinal disc space. The body comprises a first body member and a second body member that each include at least one wedge extending into an interior cavity. A front bracket is connected with a leading portion of the first and second body members and a rear bracket connected with a trailing portion of said first and second body members. The brackets allow the first and second body members to move between an expanded state and an unexpanded state. An expansion component is positioned within the interior cavity when the implant is in an expanded state and the implant is then positioned in an unexpanded state. The expansion component includes at least one inverted wedge in engagement with the wedge of the first and second body members. The inverted wedge is operable to cause the first and second body members to expand way from one another to the expanded state. A bone graft member is then inserted into the interior cavity defined by the first and second body members.12-08-2011
20110301711SYSTEM AND METHODS FOR A LATERALLY EXPANDING IMPLANT - An implant for a spinal column and a method for inserting the same into a patient is disclosed. The implant includes an elongated body positionable in a spinal disc space. The body comprises a first body member and a second body member that each include at least one wedge extending into an interior cavity. A front bracket is connected with a leading portion of the first and second body members and a rear bracket connected with a trailing portion of said first and second body members. The brackets allow the first and second body members to move between an expanded state and an unexpanded state. An expansion component is positioned within the interior cavity when the implant is in an expanded state and the implant is then positioned in an unexpanded state. The expansion component includes at least one inverted wedge in engagement with the wedge of the first and second body members. The inverted wedge is operable to cause the first and second body members to expand way from one another to the expanded state. A bone graft member is then inserted into the interior cavity defined by the first and second body members.12-08-2011
20110301710INTERVERTEBRAL IMPLANT FACILITATING UNILATERAL PLACEMENT, INSTRUMENTS AND METHODS - Implants, tools and methods for performing unilateral posterior lumbar interbody fusion are provided. An interbody implant includes a body having a top and bottom surface extending along a length thereof; and first and second side surfaces extending between the top and bottom surfaces on opposite sides of the body. The height of the first side surface is greater than the height of the second side surface.12-08-2011
20110077742Expandable Vertebral Body Implants and Methods of Use - A vertebral implant for insertion into a patient includes first and second end members and a spacer member. The end members and the spacer member form an elongated shape with a longitudinal axis. At least one of the end members may include a recess that receives the spacer member. At least one attachment member is coupled to each of the end members. The attachment member is positioned away from the recesses.03-31-2011
20120004729Minimally invasive apparatus to manipulate and revitalize spinal column disc - A method and apparatus are provided to manipulate and revitalize a spinal column disc while minimizing or preventing the removal of material comprising the disc. The method allows a device to be inserted in the disc either through a pre-existing rupture or through an opening formed in the front, back, or sides of the disc. Increasing the space between the vertebra bounding the disc or removing disc material often is not necessary to insert the device in the disc. The device generates internal traction or other forces acting on the disc to alter the shape of the disc. The shape of the disc is altered to relieve pressure on nerves adjacent the disc. The shape of the disc is also altered to draw nuclear hernias back into the interior of the disc and to produce a disc shape that improves functioning of the disc.01-05-2012
20090088857Implant for the delivery of electrical current to promote bone growth between adjacent bone masses - An electrical bone growth promotion apparatus for the delivery of electrical current to an implant surgically implanted between adjacent bone masses to promote bone growth to areas adjacent to the implant is disclosed. The apparatus of the present invention comprises a self contained implant having a surgically implantable, renewable power supply and related control circuitry for delivering electrical current directly to the implant and thus directly to the area in which the promotion of bone growth is desired. The desired areas of bone growth promotion may be controlled by conducting negative charge only to the desired location of bone growth promotion.04-02-2009
20110288647METHODS FOR TREATING A DEFECT IN THE ANNULUS FIBROSIS - Methods for treating a defect in an annulus fibrous are described. The annulus fibrosis has an outer layer, at least one inner layer, and a defect extending through the outer and inner layers. An implant is inserted into the defect in the annulus fibrosis, the implant having at least one aperture. The implant is advanced distally beyond the outer layer in the annulus fibrosis and positioned to occlude the defect. An elongate fixation element is inserted through the at least one aperture, the elongate fixation element having a first end region and a second end region. The elongate fixation element is positioned such that the first end region is within the at least one aperture. The second end region of the elongate fixation element is anchored to the annulus fibrosis. The implant prevents escape of nucleus pulposus through the defect.11-24-2011
20110288645INTERVERTEBRAL PROSTHETIC SYSTEMS, DEVICES, AND ASSOCIATED METHODS - Intervertebral prosthetic systems, devices, and associated methods are provided. The present disclosure provides top and bottom endplates that engage the lateral walls of the vertebral bodies for stability and incorporate a compliant core, ball-and-socket core, fusion-cage core, or any other suitable type of motion-preserving or fusion cores. The endplate designs allow insertion through a unilateral approach yet still have engagement on both sides of the vertebral body to provide stability and reduce the risk of subsidence. In some instances, saddle style endplates are inserted and then rotated to engage the lateral walls of the vertebral bodies. In other instances, hinged style endplates are inserted in a first orientation and then at least one end portion is pivoted to a second orientation so that the endplates engage the lateral walls of the vertebral bodies.11-24-2011
20130218280COMPOSITE IMPLANT - A composite interbody vertebral implant for facilitating fusion of adjacent vertebrae. The implant includes a first endplate of a porous metal material and a second endplate of a porous metal material which are configured to allow bone in-growth. The implant also includes a polymeric body positioned between and bonded to the first and second endplates such that polymeric material of the polymeric body is impregnated into pores of the first and second endplates to bond the components together. The implant may include a cavity extending through the composite implant configured to receive bone growth material to facilitate fusion between a first vertebra and a second vertebra.08-22-2013
20090088853ORTHOPEDIC DEVICE ASSEMBLY WITH ELEMENTS COUPLED BY A RETAINING STRUCTURE - The present invention provides an orthopedic device assembly comprising a first assembly element, a second assembly element, and a retaining mechanism. The first assembly element has a recess that receives the second assembly element, and the retaining mechanism holds the second element in an assembled state with the first assembly element. The retaining mechanism includes a retaining member with an angular cross-section defined by a base portion and a lateral flange portion projecting from the base portion. The retaining member is inserted through an aperture of the first assembly element into a groove in a wall of the recess of the first assembly element, with the flange portion projecting laterally of the groove and overhanging a shoulder portion of the second assembly element so as to retain the second assembly element in the assembled state with the first assembly element.04-02-2009
20090088850INTERVERTEBRAL ENDOPROSTHESIS - An intervertebral endoprosthesis for insertion into the intervertebral space between two adjacent vertebrae is provided that includes first and second base members, each having a first surface configured to engage one of the vertebrae and a second opposite surface and a resilient insert disposed between the base members. The insert includes an outer shell defining an interior chamber and is disposed in contacting engagement with the second surface of each of the base members. The resilient insert further includes a core disposed within the chamber and connected to the outer shell. The intervertebral endoprosthesis further includes first and second coupling members, each of the coupling members extending between the core of the resilient insert and one of the base members. The first and second coupling members independently couple the first and second base members to the resilient insert, wherein the first and second base members are movable independently of one another and the adjacent vertebrae are movable independently of one another when the intervertebral endoprosthesis is inserted into the disc space.04-02-2009
20110295374IMPLANTABLE JOINT PROSTHESIS - The invention relates to a surgical implant that provides an artificial diarthroidal-like joint, suitable for use in replacing any joint, but particularly suitable for use as an intervertebral disc endoprosthesis. The invention contains two rigid opposing shells, each having an outer surface adapted to engage the surfaces of the bones of a joint in such a way that the shells are immobilized by friction between their outer surfaces and the surfaces of the bone. These outer surfaces are sufficiently rough that large frictional forces strongly resist any slippage between the outer surface and the bone surfaces in the joint. They may be convex, and when inserted into a milled concavity, are immediately mechanically stable. Desirably, the outer surfaces of the shells are adapted to allow for bony ingrowth, which further stabilizes the shells in place. The inner surfaces of the shells are relatively smooth, and adapted to slide easily across a portion of the outer surface of a central body disposed between the shells. The central body has a shape that cooperates with the shape of the inner surface of the shell so as to provide a range of motion similar to that provided by a healthy joint. A flexible sheath extends between edges of the opposing shells. The inner surface of this sheath, together with the inner surfaces of the rigid shells, defines a cavity encasing the central body. At least a portion of this cavity is filled with a fluid lubricant, further decreasing the frictional force between inner surfaces of the shell and the surface of the central body.12-01-2011
20110295373MINIMALLY INVASIVE SPINAL DISTRACTION DEVICES AND METHODS - Systems are provided for reducing the complexity and invasiveness of spinal stabilization procedures and provide an expandable device deliverable to a spinal implantation location. The expandable device can be delivered through a minimally invasive access portal and expanded at the implantation location to manipulate one or more bony structures or maintain a configuration of one or more bony structures.12-01-2011
20110295372SPINAL SYSTEM AND METHOD INCLUDING LATERAL APPROACH - Embodiments of the invention include devices and methods for implanting a vertebral body spacer. A lateral surgical approach is contemplated with some disclosed procedures. Instruments of some embodiments are insertable into a disc space to achieve distraction, to determine a desired disc space height, and to select a corresponding implant.12-01-2011
20110295371BI-DIRECTIONAL FIXATING TRANSVERTEBRAL BODY SCREWS AND POSTERIOR CERVICAL AND LUMBAR INTERARTICULATING JOINT CALIBRATED STAPLING DEVICES FOR SPINAL FUSION - A self-drilling bone fusion screw apparatus is disclosed which includes at least first and second sliding boxes. A first screw member having a tapered end and a threaded body is disposed within the first sliding box, and a second screw member having a tapered end and a threaded body disposed within the second sliding box. An adjuster adjusts the height of the sliding boxes. The screw members are screwed into vertebral bodies in order to fuse the vertebral bodies together. A plurality of the self-drilling bone fusion screw apparatuses may be attached together and/or integrated via a plate or cage. Also disclosed is a cervical facet staple that includes a curved staple base and at least two prongs attached to the bottom surface of the curved staple base.12-01-2011
20100262244Metal Coated Implant - A metal coated implant and a method for using the implant for expanding an intervertebral disc space is provided. The implant comprises a polymer substrate and a metallic coating layer wherein the metallic coating layer is attached to the polymer substrate. There metal coated implant further comprising a biocompatible radiolucent polyetheretherketone (PEEK) material, and a metallic coating layer that is a titanium (Ti) or gold (Au) material. The metal coated implant's radiolucent and radiopaque properties enhance a surgeon's ability to distinctly visualize the metal coated implant to thereby better control and maneuver the delivery, insertion, trajectory, position and orientation of the metal coated implant through the patient anatomical environment and into the vertebral disc space.10-14-2010
20090030521ELASTOMERIC INTERVERTEBRAL DISC PROSTHESIS - An intervertebral disc prosthesis includes upper and lower rigid endplates and an elastomeric core structure located between the endplates and attached thereto, wherein the elastomeric core structure has a centroid positioned posterior to a centroid of at least one of the endplates.01-29-2009
20120191193INTERBODY IMPLANT SYSTEM AND METHODS OF USE - An interbody implant spacer includes a flexible body defining a first surface configured for engagement with a first vertebral surface and a second surface configured for engagement with a second vertebral surface. The first surface includes at least one pre-formed protrusion extending outwardly therefrom. The body is expandable between a first, non-expanded configuration such that the at least one protrusion extends outwardly from the first surface and a second, expanded configuration such that the at least one protrusion extends outwardly from the first surface to engage the first vertebral surface and at least a portion of the second surface engages the second vertebral surface. Methods of use are disclosed.07-26-2012
20120191197NUCLEUS AUGMENTATION DELIVERY DEVICE AND TECHNIQUE - A method of performing a procedure on an intervertebral disc includes inserting a cannulated delivery tube through an opening in an annulus fibrosus of the intervertebral disc, positioning an expandable portion of the tube within the opening in the annulus fibrosus, expanding the expandable portion into contact with the annulus fibrosus about the opening to create a seal between the expandable portion and the annulus fibrosus, performing a procedure through the cannulated delivery tube within the annulus fibrosis, removing the tube, and closing the opening in the annulus fibrosus.07-26-2012
20120191196Vertebral Cage Device With Modular Fixation - Intervertebral arthrodesis for insertion in an intervertebral space separating opposite faces of two adjacent vertebrae has a ring shaped intervertebral cage having a bar that extends perpendicular to the axis of the spine. The bar has a height less than the rest of the cage. A surface of the cage contacting the vertebrae has an undulating shape for limiting sliding of the cage in a plane parallel to the vertebrae faces.07-26-2012
20100036498FUSION CAGE WITH REVERSE THREAD PROFILE (RTP) - A bone fixation system for stabilizing two skeletal structures relative to one another, the system comprising:02-11-2010
20120191195INTERVERTEBRAL DISC REPLACEMENT - An intervertebral disc replacement has two members attached to vertebral body endplates of two adjacent vertebrae. The two members are formed with respective articulation surfaces which form at least part of an articulation arrangement. When loaded with compressive axial force, the articulation arrangement supports the vertebral contact surfaces against the compressive force to ensure a predefined minimum intervertebral spacing, and allows a range of turning motion in all directions. The articulation arrangement is formed to provide an increase in the intervertebral spacing as a smooth function of angular displacement from a neutral position over at least part of the range of motion in each direction for each direction of motion, thereby providing motion attenuation and restoring forces.07-26-2012
20090099659SLIDING INTERVERTEBRAL IMPLANT - A sliding intervertebral implant and method includes a first member that connects to an intervertebral space between two adjacent vertebrae. The first member includes a pair of curved side walls connected to each of a front wall, an upper curved wall, and a lower curved wall, wherein a length of a first curved side wall is less than a length of each of a second curved side wall, the upper curved wall, and the lower curved wall, and wherein an edge of the second curved side wall is offset from an edge of the front wall. A second member is slidably attached to the first member, and includes a top and bottom curved wall each connected to an inclined side wall and a guide wall, wherein the guide wall comprises grooves, wherein the second curved side wall of the first member slides in the grooves of the guide wall.04-16-2009
20110264224METHODS AND APPARATUS FOR TREATING DISC HERNIATION AND PREVENTING THE EXTRUSION OF INTERBODY BONE GRAFT - Methods and apparatus for treating disc herniation provide a conformable device which assumes a first shape associated with insertion and a second shape or expanded shape to occlude the defect which typically follows partial discectomy. The device may take different forms according to the invention, including patches size to cover the defect or plugs adapted to fill the defect. In a preferred embodiment, however, the device is a gel or other liquid or semi-liquid which solidifies to occlude the defect from within the body of the disc itself. In another preferred embodiment, a mesh screen is collapsed into an elongated form for the purposes of insertion, thereby minimizing the size of the requisite incision while avoiding delicate surrounding nerves. Such a configuration also permits the use of instrumentation to install the device, including, for example, a hollow tube or sheath adapted to hold the collapsed screen, and a push rod to expel the collapsed device out of the sheath for use in occluding the disc defect. A device according to the invention may further include one or more anchors to assist in permanently affixing the device with respect to the defect.10-27-2011
20090187247Spinal implant having a resorbable anchor device for temporarily securing an interbody device to adjacent upper and lower vertebrae - A spinal implant including an interbody device and an anchor device. The interbody device is sized and shaped to be positioned within an intervertebral disc space between adjacent upper and lower vertebrae. The anchor device is at least partially formed of a resorbable material and is coupled to the interbody device and anchored to the upper and lower vertebrae. The anchor device is configured to temporarily secure the interbody device to the upper and lower vertebrae for a period of time sufficient to facilitate bone growth onto and/or through the interbody device and is thereafter resorbed into the body.07-23-2009
20090182431Spinal Interbody Fusion Cages Providing Variable Anterior/Posterior Profiles - A spinal interbody fusion cage has a body whose anterior/posterior profile may be varied through angular positioning of one or more articulating segments of the body without changing the superior/inferior height of the body. The present spinal interbody fusion cage has N segments or sections wherein at least one segment is articulated relative to another segment via a connection point, pivot or pivot structure such that the anterior/posterior profile is variable through angular positioning of one or more of the segments. The pivot structure may be configured so as to allow unidirectional movement between the connecting segments thereby allowing articulation in one plane or to allow omni-directional movement between the connecting segments thereby allowing articulation in multiple planes. The various forms of the present interbody fusion cage include superior and inferior sides or bone abutment surfaces that have serrations, teeth or similar functioning structures (teeth). The teeth extend between the anterior end and the posterior end. The teeth may take different shapes but are configured to allow insertion of the spinal interbody fusion cage in an anterior-first manner while preventing and/or inhibiting the spinal interbody fusion cage from backing out posteriorly.07-16-2009
20090222095Disc implant device - A device in a disc implant (09-03-2009
20110319999Lateral Spondylolisthesis Reduction Cage - An intervertebral fusion device comprising inferior and superior fusion cage devices that provide an ability to correct spondylolisthesis via in-situ adjustment.12-29-2011
20090088852Prosthetic Intervertebral Discs That Are Implantable By Minimally Invasive Surgical Techniques And That Have Cores That Are Insertable In Situ Using End Plate Guideways - The described devices are spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.04-02-2009
20090088848INSTRUMENT SET AND METHOD FOR PERFORMING SPINAL NUCLECTOMY - A nuclectomy method for creating a nuclear cavity in an annulus located in an intervertebral disc space and for preparing the nuclear cavity to receive an intervertebral prosthesis. The method involves identifying a plurality of regions in at least a portion of the nucleus. A sequence for removing the regions is also determined. At least one annulotomy is formed in the annulus along an annular axis to provide access to the nucleus. A guide system is positioned relative to the annulotomy. The guide system is configured to limit motion of at least one surgical tool relative to the guide system. A portion of the nucleus is removed from a first region using the surgical tool. At least one of the guide system and the surgical tool are configured to remove a portion of the nucleus from a second region. A portion of the nucleus is removed from a second region using the surgical tool.04-02-2009
20090030523Veretebra Stabilizing Assembly - An implant assembly for implantation between upper and lower spinous processes includes an interspinous implant and a removable clip. The implant may have an interspinous portion having upper and lower surfaces for engagement with the respective upper and lower spinous process, and a thickness therebetween sufficient to restore anatomical tension to the supra-spinous posterior ligament. Upper and lower pairs of lugs extend from the interspinous portion for interfacing with the respective spinous processes. One or more of the lugs of each pair is movable between an insertion configuration and a retention configuration substantially perpendicular to the retention configuration. The removable clip engages the relevant lugs to selectively retain the same in the insertion configuration.01-29-2009
20090182428FLANGED INTERBODY DEVICE - An interbody implant including a first lateral portion, a second lateral portion positioned opposite to the first lateral portion, a top wall having a plurality of holes, a bottom wall positioned opposite to the top wall, and teeth positioned on the top wall and the bottom wall. The top wall and the bottom wall are attached to the first lateral portion and the second lateral portion. The first lateral portion further includes at least one flange surface and the second lateral portion further includes an opening. The at least one flange surface may be configured to couple to a peripheral wall of the vertebral body and may be adapted to provide at least one of a torsional property, an axial property, and a shear property to the implant. The teeth may be adapted to provide a mechanical interlock between the implant and vertebral endplates of the vertebral body.07-16-2009
20090326657Pliable Artificial Disc Endplate - An intervertebral implant for replacing an intervertebral disc of the human spine, the implant including first and second conformable foam endplates, each endplate being conformable to a boney vertebral endplate under an anatomical load, and a core between the endplates, wherein the conformable foam endplates partition the core from the boney vertebral endplate so that the core does not contact the boney vertebral endplate.12-31-2009
20110264228Method of Providing Spinal Interbody Fusion - An apparatus and method is provided for interbody fusion including distracting, in a given direction, and supporting opposing vertebral bodies. A plurality of wafers are consecutively inserted between the vertebral bodies to create a column of wafers. The column of wafers is oriented between the vertebral bodies so as to expand in the given direction as the wafers are consecutively added to the column.10-27-2011
20110264221Interspinous Fusion Device and Method - An interspinous fusion assembly includes a screw including a first end that includes at least one aperture, a second end inserted between the two spinous processes, a shank separating the first end from the second end. The shank includes an outer surface that includes cutting means and at least one hole bored through the surface. An inner chamber positioned in the shank and substantially along a longitudinal axis of the shank. The inner chamber includes the aperture of the first end and connects with the hole of the shank. A pair of complementary plates bilaterally positioned with respect to one another and accommodating the screw. A fastening mechanism positioned in one of the plates that retains a relative position of the pair of complementary plates constant with respect to one another. The pair of complementary plates includes a first plate and a second plate.10-27-2011
20110264218INTERVERTEBRAL BODY IMPLANT, INSTRUMENT AND METHOD - Interbody implant systems and methods of implant interbody implants are described. In one aspect, an implant includes a body have a distal end portion and a proximal end portion and a first articulation surface formed at a distal end of the distal end portion. An insertion instrument includes an elongate shaft having a proximal end portion and a distal end portion; and a second articulation surface formed at a distal end of the distal end portion. The second articulation surface is configured to interface with the first articulation surface. An attachment member is configured to connect the implant to the insertion instrument. The attachment member is actuatable to compress the first and second articulation surfaces together in a locked configuration with sufficient force to prevent relative rotation between the first and second articulation surfaces. The attachment member is actuatable to reduce an amount of compression force existing in the locked configuration to place the first and second articulation surfaces in an unlocked configuration such that the first articulation surface can rotate relative to the second articulation surface.10-27-2011
20090157188Intervertebral Disc Prosthesis - The present invention relates to an intervertebral disc prosthesis preferably comprising at least three pieces including an upper plate (06-18-2009
20110196497Method and System For Fusing a Spinal Region - A method and system for fusing a region in the spine involve the use of at least one guide tube to pass instruments and substances into the spinal region in a minimally invasive manner. In the preferred practice of the method, a guide tube is anchored to a vertebra and the guide tube is moved to thereby position the vertebra. A steerable drilling tool is passed through the guide tube and steered into position to abrade at least a portion of an intervertebral disc and thereby create a cavity in the disc. A flowable substance is passed into the cavity and permitted to solidify to establish fusion in the cavity. Optionally, an uninflated balloon is inserted into the cavity and the balloon is filled with the flowable substance to contain the flowable substance.08-11-2011
20090149959SPINAL IMPLANTS AND METHODS - Spinal implants are disclosed that can be used for annular repair, facet unloading, disc height preservation, disc decompression, or for sealing a portal through which an intervertebral implant was placed. In some embodiments, an implant is placed within the intervertebral disc space, primarily within the region of the annulus fibrosus. In some embodiments, the implant is expandable. In some embodiments, the implant has a sealing tail structure comprising a tail flange and a linkage. In some embodiments, the sealing tail structure limits the extrusion or expulsion of disc material, either annulus fibrosus or nucleus, into the posterior region of the spine where it could impinge on nerves. In some embodiments, the tail structure is retained in place within the annulus fibrosus by means of an anchor. In some embodiments, the anchor is constructed from multiple components.06-11-2009
20090149957MODULAR LATERAL EXPANSION DEVICE - A modular lateral expansion device to be inserted into a vertebral body. The modular lateral expansion device comprises a pair of complementary lateral members. Each of the lateral members includes a first end, a second end, a first lateral portion, a second lateral portion, a top wall, a bottom wall, and a cavity configured through the top wall and the bottom wall. The top wall includes a top ridge and a top contour surface and the bottom wall includes a bottom ridge and a bottom contour surface. The top ridge and the bottom ridge are inwardly angled into the second lateral portion. The first lateral portion includes a plurality of cuts. The second lateral portion includes a first slot positioned at an edge of the second lateral portion and a second slot positioned in a substantially central area of the second lateral portion.06-11-2009
20090099660Instrumentation to Facilitate Access into the Intervertebral Disc Space and Introduction of Materials Therein - Methods for facilitating access to the intervertebral disc to deliver materials for disc repair are disclosed. The methods may be used to replace or augment nucleus pulposus as well as to perform interbody fusion procedures. These methods include providing access to the intervertebral disc space by drilling a channel through a vertebral bone, optionally accessing the intervertebral disc space to at least partially remove the disc tissue through the channel in the vertebrae; delivering a disc repairing material to the intervertebral disc space and back-filling the channel in the vertebrae with a channel sealing material. The methods may further comprise distracting the intervertebral height and inserting a restrictor into the channel in the vertebrae. Kits for practicing these methods are also disclosed.04-16-2009
20110264227VERTEBRAL ANCHORING METHODS - Embodiments of the invention relate generally to tissue anchors and methods of delivering same to the intervertebral disc or other sites within the body. In some embodiments, the anchors provide pull-out resistance, stability and/or maximize contact with tissue involving a minimum amount of penetration. In some embodiments, delivery methods are minimally invasive and include linear, lateral, and off-angle implantation or driving of anchors along, against or within tissue surfaces.10-27-2011
20110264225APPARATUS AND METHOD FOR CREATING AN IMPLANTATION SPACE IN A SPINE - An apparatus used in spinal surgery for creating a space of selected shape and dimensions across the disc space between adjacent vertebral bodies of the spine.10-27-2011
20110264222DEVICE FOR ESTABLISHING AN ANATOMICAL REFERENCE POINT OF AN INTERVERTEBRAL DISC - The disclosure relates to a device for establishing an anatomical reference point of an intervertebral disc for the attachment of at least one instrument intended for the implantation, through a posterior or posterolateral approach, of a disc prosthesis or osteosynthesis cage as a replacement for the intervertebral disc. The device includes at least two means for bone anchorage each intended to be attached to a vertebra adjacent to the disc, a coupling element for the instrument and elements for adjusting the position of the coupling element relative to the position of the disc.10-27-2011
20080288075SPINE DISTRACTION IMPLANT AND METHOD - A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen. The implant provides a spinal extension stop while allowing freedom of spinal flexion.11-20-2008
20090048677Bioresorbable Spinal Implant and Related Methods - A prosthesis for the replacement of an intervertebral disc of the spine comprises a block of an elastomeric material, which is held under compression by an encapsulating textile fabric. A preferred version of the invention has flanges that are continuations of the encapsulating fabric forming an interdigitation, with the continuation of the upper fabric passing through a hole in the lower fabric and being attached to the lower vertebral body and the continuation of the lower fabric crossing to its fixation site on the upper vertebral body. Optionally, the flanges are resorbable, over time leaving only the implant core and encapsulation fabric in the intervertebral space.02-19-2009
20120035732INTERVERTEBRAL PROSTHETIC DISC - A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.02-09-2012
20120035730MINIMALLY-INVASIVE RETROPERITONEAL LATERAL APPROACH FOR SPINAL SURGERY - A method is disclosed for introducing a spinal disc implant into an intervertebral space of a subject. The subject is placed in a lateral position, and the anterior face of the spinal disc intervertebral space is accessed, between the L5 and S1 vertebrae, from an anterior and lateral retroperitoneal approach. An operative corridor to the anterior face of the spinal disc space is established by introducing a retractor instrument anterolaterally to the spinal disc space between the anterior superior iliac spine and the anterior inferior iliac spine. The damaged spinal disc contents are removed from the intervertebral space through the operative corridor, and the implant is advanced into the intervertebral space at an oblique angle and pivoted to position the implant substantially laterally within the intervertebral space. Elongated retractor and insertion instruments, as well as a modified disc implant, are also disclosed for carrying out the method.02-09-2012
20120109319INTERBODY CAGE - The invention relates to an interbody cage, including a cage body (05-03-2012
20120109318Prosthetic intervertebral discs - Prosthetic intervertebral discs, systems including such prosthetic intervertebral discs, and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the sagittal plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components, construction, and other features of the discs.05-03-2012
20120109316Intervertebral Implant, Insertion Tool and Method of Inserting Same - An intervertebral implant, alone and in combination with an insertion tool for inserting same and a method for inserting same. The implant has upper and lower parts which have universal movement relative to each other. Each of the upper and lower parts also has a surface engaging an adjacent vertebrae. Each part has a keel extending from said surface into a cutout in the adjacent vertebrae, and each keel has an anterior opening recess therein. An insert tool has a pair of arms which are received in the recess of the keels through the anterior opening to securely hold and insert the implant. Projections and matching indentations in each arm and the base of its recess securely attached each arm within its keel.05-03-2012
20120109315TOTAL DISC REPLACEMENT DEVICE - An intervertebral implant for implantation between an upper vertebra and a lower vertebra having a central axis. The implant may have a first member with a top surface for contacting at least a portion of the upper vertebra and a bottom surface as well as a second member with a top surface and a bottom surface for contacting at least a portion of the lower vertebra. An elastic spacer may be disposed between the first member and the second member. Contraints may be employed to to limit the amount of lateral movement between the first and second members.05-03-2012
20120109314Method of Using an Anti-Growth Matrix as a Barrier for Cell Attachment and Osteo-Inductive Factors - The present invention generally relates to a method of using a matrix as a barrier for unwanted cell attachment and bone formation in unwanted areas of the human body during implant procedures. More specifically, a growth-inhibiting matrix may be used to prevent migration of osteo-inductive agents or bone tissue from an intervertebral disc space through the outer bands of annulus fibrosis that abuts the spinal tissue, canal, and other surrounding areas.05-03-2012
20120109313Intervertebral Implant - The intervertebral three-dimensional structure comprises a top side, an underside, a front face, a rear face, and a plurality of boreholes designed to receive affixation elements.05-03-2012
20120109312INTERVERTEBRAL IMPLANT - The intervertebral three-dimensional structure comprises a top side, an underside, a front face, a rear face, and a plurality of boreholes designed to receive affixation elements.05-03-2012
20120109311Intervertebral Implant - The intervertebral three-dimensional structure comprises a top side, an underside, a front face, a rear face, and a plurality of boreholes designed to receive affixation elements.05-03-2012
20120109310Intervertebral Implant - The intervertebral three-dimensional structure comprises a top side, an underside, a front face, a rear face, and a plurality of boreholes designed to receive affixation elements.05-03-2012
20120109309INTERVERTEBRAL IMPLANT - The intervertebral three-dimensional structure comprises a top side, an underside, a front face, a rear face, and a plurality of boreholes designed to receive affixation elements.05-03-2012
20120109308Intervertebral Implant - An intervertebral implant includes a three-dimensional body and a securing plate. The three-dimensional body includes a front surface and a rear surface. The three-dimensional body further includes a plurality of boreholes for accommodating fixation elements. The intervertebral implant also includes a front plate disposed at the front surface of the three-dimensional body and having a plurality of boreholes. A securing plate can be fastened to the front plate.05-03-2012
20120109307VERTEBRAL IMPLANT END CAP - An implant and method for insertion between adjacent vertebral members. The implant comprises an implant body with a base section having a plurality of base extensions, and an end cap adapted for selective axial positioning at a selected point on the base section. The end cap comprises locking apertures and positioning apertures configured to engage corresponding base extensions, the locking apertures comprises a resilient aperture finger adapted to deform to permits the locking aperture to deform as the end cap is positioned on the base section. The locking apertures and positioning apertures will prevent rotational movement of the end cap relative to the base section once the end cap is secured to the base section. The implant imparts end cap height and angulation to an adjacent vertebral body at the selected or desired point when the implant is positioned in the intervertebral space.05-03-2012
20120109306SPINAL IMPLANT - A spinal implant configured for implantation in an intervertebral disc space is disclosed. The implant comprises a section for engaging a vertebral body. The section comprises a bone-engaging surface configured to engage at least a portion of a vertical surface and/or an endplate surface of the vertebral body. The section further comprises a metal component and a polymer component that are bonded together, wherein each of the metal component and the polymer component comprises at least one structural element configured to promote fixation between the polymer component and the metal component.05-03-2012
20100121455SOFT TISSUE IMPACTION METHODS - Methods of providing soft tissue impaction using anchored implants are disclosed. In some embodiments, the soft tissue impaction provided by the anchored implants can facilitate intervertebral disc reconstruction. A method of soft tissue impaction includes displacing soft tissue from within a defective region of an anulus into a nuclear disc space of an intervertebral disc as it is driven within an outer surface of an adjacent vertebral body.05-13-2010
20090093883Interspinous implant - This invention consists in an implant to be placed between the lumbar spinous and lumbar-sacral apophysis in order to keep them separated and enable a normal flexion and extension range. The implant is a cuneiform body which frontal end is rounded and higher than the rear end thus forming an open angle towards the frontal part of the implant. It has two supporting surfaces, opposite to the spinous apophysis and having in its most rear end two sharp edges which are opposite to the spine and located transversally to the longitudinal axis of said faces, and wherein said supporting surfaces are confined by two rhomboidal surfaces which major axis is perpendicular to the longitudinal axis of the implant.04-09-2009
20110270400PHASE TRANSITIONING HYDROGELS - A method of forming and the resulting hydrogel composition comprising poly(vinyl alcohol) at a final concentration of about 20% (w/w) to about 65% (w/w) and polyethylene glycol at a final concentration of about 2% (w/w) to about 20% (w/w), wherein the hydrogel composition has a total polymer content, above about 30% (w/w), higher than the total polymer content of a precursor polymer solution formulated prior to the formulation of the hydrogel composition. The hydrogel composition may further comprise poly(vinyl pyrrolidone) at a fmal concentration of about 0.10% (w/w) to about 0.75% (w/w).11-03-2011
20100324685Spinal implant and method of using spinal implant - The present invention is a brace or spinal implant that can be inserted into vertebra that has had a cavity surgically created therein. The trapezoidal shaped spinal implant includes an opening that allows the surgical team to view the dura mater prior to packing the implant with osteogenic substances.12-23-2010
20080269905CERVICAL INTERVERTEBRAL PROSTHESIS SYSTEM - A cervical intervertebral prosthesis system includes prostheses which each have a hinge with a predefined center of hinge movement. To permit better adaptation to the different hinge radii of the cervical intervertebral disks, the cervical intervertebral prostheses of the system include at least two different prostheses with different hinge radii.10-30-2008
20080269904Lumbar disc replacement implant for posterior implantation with dynamic spinal stabilization device and method - The invention consists of disc replacement implant for the lumbar spine designed for insertion into the disc space via a posterior approach. The implant can be stabilized in the disc space by connection to the vertebra or can be connected to dynamic spinal stabilization device consisting of interconnected bullets nested in a spring nested in a woven sleeve. By controlling the limits of elongation and compression the device prevents movement beyond normal physiological limits. In the midrange of movement flexibility is allowed. A method for using the dynamic spinal stabilization device is also provided.10-30-2008
20100100185Intervertebral Disc Prosthesis Having Viscoelastic Properties - A motion-preserving implant device for insertion between two bones is disclosed. The motion-preserving implant includes a first plate member for engaging with a first bone and a second plate member for engaging with a second bone. A viscoelastic component is positioned between the two plate members that is configured to constrain and dampen the relative motion between the two plate members.04-22-2010
20100094425METHOD AND APPARATUS FOR THE TREATMENT OF THE INTERVERTEBRAL DISC ANNULUS - This disclosure presents methods and devices for treating a tear, rent, incision, defect, aperture or delamination of the annulus fibrosus of an intervertebral disc. The methods and devices can employ fixation delivery apparatuses, fixation apparatuses, patch delivery tools and patches positioned, at least in part, in or on aspects of an intervertebral disc for treatment of the intervertebral disc or its components. In some aspects, these techniques include the use of this includes a fixation apparatus that includes at least one bone anchor connected to at least one disc anchor by a shortenable elongate member.04-15-2010
20100100187SHOCK-ABSORBING INTERVERTEBRAL IMPLANT - The invention relates to an intervertebral implant comprising a spacer designed to be applied between two spinous processes of two vertebrae. The spacer comprises: two elements (04-22-2010
20120143339METHODS AND DEVICES FOR EXPANDING A SPINAL CANAL - Devices and methods are disclosed for expanding a spinal canal. An implantable device having a shaft with a first cross-sectional dimension distinct from a second cross-sectional dimension can be inserted into an opening in a lamina and rotated 90 degrees to hinge the lamina away from the spinal canal. The implant can have one or more radiused edges, a bulleted tip, one or more lateral extensions for fastening the implantable device to bone, one or more hinged lateral extensions, one or more arcuate protrusions for biting into adjacent bone, an enlarged proximal head to prevent over-insertion, and/or a sleeve disposed therearound to reduce friction. Various embodiments of an insertion apparatus that can be selectively coupled to the implantable device are also disclosed, along with methods of expanding a spinal canal in minimally-invasive procedures using an implantable device and/or an insertion apparatus.06-07-2012
20090054990MULTI-LUMEN MOLD FOR INTERVERTEBRAL PROSTHESIS AND METHOD OF USING SAME - A multi-lumen mold is for the in situ formation of a prosthesis in an intervertebral disc space located between adjacent vertebrae of a patient. The multi-lumen mold a flexible mold, a first lumen, a second lumen and a curable biomaterial. The flexible mold is shaped to be positioned in the intervertebral disc space. The first lumen and the second lumen each have a distal end is fluidly coupled to the flexible mold at a first location and a second location, respectively. The first lumen is shaped to extend out through a first opening extending through one of the adjacent vertebrae when the mold is positioned in the intervertebral disc space. The curable biomaterial is delivered into the flexible mold through at least one of the first and second lumens. The first and second locations can optionally be located on generally opposite sides of the mold, on the same side of the mold, or a variety of other configurations. One or more securing members can be used to secure the mold in the intervertebral disc space. The securing members can engage with the annulus, the end plates, and/or another surface of a vertebrae.02-26-2009
20090138087Apparatus for the Neurosurgical-Orthopedic Treatment of Human Spinal Column Pathologies - Apparatus for the neurosurgical-orthopedic treatment of human spinal column pathologies, comprising an elastically yielding contrast means (05-28-2009
20090132050Method and arrangement at implants preferably for a human intervertebral and such implant - In an arrangement for production of implant consisting of biocompatible material and intended for a vertebral disk, preferably intervertebral disk in the human body, the condition (state) of the disk is established by aids of condition establishing means and parameters. A first information created by aid of the means and parameters is arranged to control computer equipment for production of a simulation model of the disk in question with surrounding vertebras. A second information created by the computer equipment in dependency of the simulation incorporates or consists of information about the outer volume and design of the implant put in relation to the present alteration of or in the disk. The second information is arranged to initiate or contribute to the control of one or more equipments for production of the implant. In this manner, it is possible to arrange a technical arrangement and method for an individually adapted implant.05-21-2009
20120232663INTERVERTEBRAL SPACER IMPLANT WITH PIVOTALLY ENGAGED LINKS - An intervertebral spacer implant can include: a plurality of links, each link having a hole bored along an axis of said link and said hole of each link of said plurality of links aligns to form a channel bored through said plurality of links, wherein a first link of said plurality of links is pivotally engaged to a second link of said plurality of links. The implant can include an elongated member, such as a guide wire, adapted to retain said plurality of links, wherein said elongated member is configured to mate with each said hole of each link of said plurality of links. At least one link of the plurality of links includes a body having one or more textured sides. The elongated member is adapted to allow said plurality of links to rotatably articulate with respect to one another, such as by a hinge.09-13-2012
20090187249Biologic Vertebral Reconstruction - A device and method for biologic vertebral reconstruction utilizes a biologically active jacket inserted into a cavity formed in a vertebra to be reconstructed. An artificial bone material is inserted into the biologically active jacket and allowed to set. The structure and method described herein provide for effective biologic vertebral reconstruction. The use of a biological material and artificial bone enables the host bone to replace the artificial bone over a period of time. Additionally, the structure of the biologically active jacket minimizes any impact into the spinal canal and the paravertebral spaces. Moreover, because of its biomechanical characteristics, which approximate the host bone, there is relative protection of the neighboring vertebral against fracture. Still further, the materials of the biologically active jacket may be impregnated with various substances to achieve various advantageous tasks.07-23-2009
20100280619SYSTEMS AND METHODS FOR SIZING, INSERTING AND SECURING AN IMPLANT IN INTERVERTEBRAL SPACE - A prosthetic spinal implant having a securing member for fixing the implant relative to an adjacent bone. In one form, the securing member is deployable into a portion of the vertebral space for affixing the implant between the vertebrae. The securing member may be disposed substantially within the body of a bearing member of the implant when the securing member is in an undeployed orientation. In other forms, the securing member is provided separately from the implant such that it may be inserted into the intervertebral space after the implant has been placed in an implanted orientation between the vertebrae. In such forms, the securing member is configured for ease of insertion between an outer bearing surface of the implant and an adjacent bone via linear or rotary motion.11-04-2010
20120296433SPINE SURGERY DEVICE - The invention relates to a device intended to replace or partially replace one or more vertebral bodies or intervertebral discs in the cervical, thoracic or lumbar spine, and includes methods for its use and deployment. The invention may be used to restore biomechanical parameters correlating with improved patient outcomes and also involves a method for a more effective discectomy or corpectomy prior to graft deployment.11-22-2012
20100125334SPINAL FUSION DEVICE - A spinal fusion device is disclosed. The spinal fusion device includes a first endplate configured for fitting within a disc space and engaging with a first vertebra and a second endplate configured for fitting within the disc space and engaging with a second vertebra. The two endplates are separated by a single spacer that is positioned between the first endplate and the second endplate and maintains a pre-determined distance between the first endplate and the second endplate. The spacer contains an anterior end, a posterior end, a first lateral side, a second lateral side opposite to the first lateral side, a first surface that engages with the first endplate, a second surface that engages with the second endplate. Also disclosed are methods and instruments for implanting the spinal fusion device.05-20-2010
20100125333Methods and instruments for interbody fusion - A laparoscopic surgical technique is provided for preparing a site for implantation of a novel fusion device or implant. In accordance with one embodiment of the technique, a laparoscope is provided having an outer sleeve with distraction fingers at one end to distract the disc space. The laparoscope provides a sealed working channel to the disc space, through which the disc space is distracted, the vertebral endplates and surrounding disc is reamed, and the fusion device inserted. A distraction plug is provided for centering the outer sleeve and for providing midline distraction of the disc space. In one embodiment, a fusion device includes diverging bone screws passing through an end wall and upper and lower walls of the device to engage the adjacent vertebrae. In another embodiment, a connector plate is engaged to bilaterally position fusion devices to prevent rotation and resist expulsion of the devices from the disc space.05-20-2010
20100125332Self-retaining artificial spinal disc, and associated methods - A self-retaining artificial spinal disc is formed of a flexible material and has a peripheral lip or meniscus extending from its top and/or bottom surface. The meniscus/menisci encircle portions of vertebrae adjacent the implant site, to enhance retention of the artificial spinal disc when seated in the spinal column. The meniscus/menisci for example snugly overlie the vertebral portions, and foster a suction seal between the disc and the adjacent vertebrae. The disc may be formed as an integral whole, or as two half-discs joinable by gluing, melting or like methods. In a related method, a self-retaining artificial spinal disc is formed in layers, by pouring and drying measures of liquid disc solution in a mold. A meniscal extension is formed from the disc body. Drugs or salts may be added to the disc layers, for example to provide an artificial spinal disc with time-release antibiotics or a desired porosity.05-20-2010
20090143859MAXIMUM SUPPORT TLIF IMPLANT - A transforaminal lumbar interbody fusion (TLIF) implant to be placed in an intervertebral space includes a front member and a back member. The front member includes a first end having a hinge, a second end, a pair of lateral portions, a top wall and a bottom wall, an opening configured through the pair of lateral portions and a plurality of openings in each of the top wall and the bottom wall. The back member includes a first end having an arcuately-shaped attachment head comprising a receptor dimensioned and configured to accommodate the hinge of the front member, a second end, a pair of lateral portions, a top wall, a bottom wall and an opening configured through the pair of lateral portions. The top wall and the bottom wall of the back member further comprise a plurality of openings.06-04-2009
20090138088Mobile spinal fusion implant - A spinal implant device for fusing adjacent vertebra having a first base member, a second base member and a center section. The center section is designed to provide flexibility between the first base member and the second base member. A channel extends through the implant from the first base member through the center section to the second base member to allow for bone growth through the implant device.05-28-2009
20090198339SYSTEMS AND METHODS FOR SPINAL FUSION - An implantable intervertebral fusion cage including a removable means for retaining material inside of the cage during implantation. Embodiments of the present invention are directed toward an implantable intervertebral fusion cage that includes at least one removable shield or veneer that is capable of retaining a surgically useful material, such as a spinal fusion-inducing material, inside of the fusion cage during implantation and/or until the shield or veneer is removed.08-06-2009
20100087926Repair System for Spinal Disc Herniation - A repair system for a compromised or herniated spine disc is provided. The repair system includes a spine disc patch to cover the herniation, and hooks, fasteners or the like to attach the spine disc patch to the vertebra surrounding the compromised disc. The repair system also includes an application tool to introduce and deploy the spine disc patch and spine disc patch fasteners to and on the disc herniation site. The spine disc patch is composed of a mesh, screen or the like of a biocompatible material with a perimeter, edge or side portion formed of a resilient biocompatible material. The mesh is preferably, but not necessarily, formed of a flexible but non-resilient biocompatible material. The perimeter is preferably, but not necessarily, formed of a flexible, resilient biocompatible material. In this manner, the spine disc patch may fold, bend, crumple or otherwise be deformed for introduction to the disc herniation site within an application tool, then unfold, expand, spread out, unfurl or otherwise open up at and over the disc herniation site when released from the application tool. The application tool consists of an elongate tube connected to a fixed portion of a handle with a rod, disposed for axial movement within the elongate tube. The rod is connected to a pivoting portion of the handle such that the rod axially moves within the elongate tube when the pivoting portion of the handle is moved.04-08-2010
20100087925SPINAL INTERBODY SPACER - A spinal spacer for engagement between vertebrae includes a body extending between a substantially contoured first end surface and a second end surface to define side surfaces and opposing top and bottom vertebral engaging surfaces substantially symmetrical about a centerline axis. At least one opening defines a hollow inner body and includes first and second intersecting openings extending through the top and bottom vertebral engaging surfaces. The second intersecting opening extends through the side surfaces. The second end surface includes at least one aperture formed therethrough in communication with the hollow inner body. A screw opening is defined through at least one plate insert configured to be removably coupled to the second end surface to substantially align the screw opening with the at least one aperture. The bone screw is configured to be threadingly secured within the at least one plate insert.04-08-2010
20120271423SPINAL INTERBODY SPACER WITH SEMI-CONSTRAINED SCREWS - An intervertebral implant system is disclosed which includes a spinal spacer for engagement between vertebrae and at least one semi-constrained bone screw assembly. The spinal spacer includes a body extending between first and second end surfaces to define opposing top and bottom vertebral engaging surfaces. The second end surface of the body includes at least one aperture formed therethrough at an angle relative to the centerline axis and a screw opening defined therethrough. The semi-constrained bone screw assembly is adapted for insertion through the screw opening and includes a shank, a head and a rod member. The rod member is fixedly engageable with the shank and moveably coupled to the head such that both the rod member and the shank are moveable with respect to the head.10-25-2012
20090088849Intervertebral Implant - The present application is directed to implants for positioned between vertebral members. The implant may include a superior surface to contact against a first vertebral member, and an inferior surface to contact against a second vertebral member. The implant may include a central web that extends between first and second flanges. The flanges may be shaped to form gaps that extend the height of the implant. Spaces in communication with the gaps may be formed in an interior of the implant to hold bone growth material.04-02-2009
20100280621INTERVERTEBRAL DISC PROSTHESIS FOR THE CERVICAL SPINE IN THE DOG - A barrel holder apparatus for intervertebral disc prosthesis implantation, the apparatus comprising a first end having one or more apertures shaped to hold removable pins while the prosthesis is being implanted to prevent a first disc and a second disc of the prosthesis from separating, the removable pins being pre-threaded into the first disc and the second disc of the prosthesis prior to the implantation of the prosthesis, and a second end located opposite to the first end, the second end having an opening shaped to hold one of the removable pins while the barrel holder is being rotated to unthread the removable pin out of the prosthesis after the implantation is completed. Also provided is a method for implanting intervertebral disc prosthesis into an intervertebral disc area defined between adjacent cervical vertebrae, the method comprising threading removable pins into a first disc and a second disc of the prosthesis, holding the removable pins with a first end of a barrel holder, the first end having one or more apertures shaped to hold the removable pins, while the prosthetic is being implanted, to prevent the first disc and the second disc of the prosthesis from separating, releasing the removable pins after the implantation is complete, holding one of the removable pins by a second end of the barrel holder, the second end being located opposite to the first end and having an opening shaped to hold the removable pin, and unthreading the removable pin by rotating the barrel holder.11-04-2010
20100280618INTERVETERBRAL DISC PROSTHESIS INSERTION ASSEMBLIES - In various embodiments, an intervertebral disc prosthesis (11-04-2010
20100280616MINIMALLY INVASIVE CORPECTOMY CAGE AND INSTRUMENT - An assembly comprising an expandable corpectomy cage and an insertion instrument, wherein the expandable cage comprises an instrument attachment features, including mating holes on the sides of the outer sleeve, and a ball-shaped pocket on the endplate of the inner sleeve, and the insertion instrument features a tuning-fork shaped holder, which attaches to the mating holes on the implant's outer sleeve using small bosses which mate with the holes under the spring tension of the fork, and a lever with a spherical end that mates with the ball-shaped pocket in the inner sleeve endplate.11-04-2010
20080208343Interlocked modular disc nucleus prosthesis - A method and apparatus for repairing a damaged intervertebral disc nucleus in a minimally invasive manner utilizes a modular disc prosthesis. The modular disc prosthesis preferably comprises at least three modular segments. In one embodiment, each modular segment includes an inner core and an outer shell. The modular segments are selectively interlockable in situ with each other. The modular segments form an implanted unitary device that closely mimics the geometry of the disc nucleus cavity.08-28-2008
20110172774EXPANDABLE INTERVERTEBRAL IMPLANT AND ASSOCIATED SURGICAL METHOD - The present invention provides an expandable intervertebral implant that is selectively disposed in the intervertebral space and deployed, thereby in-situ distracting, realigning, and/or stabilizing or fusing a portion of the spine of a patient in the treatment of injury, disease, and/or degenerative condition. The expandable intervertebral implant includes a superior member and an inferior member, each of which has a partially or substantially wedge or prismatic shape and a partially or substantially convex or other-shaped surface that is suitable for engaging the substantially concave surfaces of the associated bony superior and inferior intervertebral endplates. Once disposed in the intervertebral space, the expandable intervertebral implant is actuated and deployed, with the superior member and the inferior member moving apart from one another, seating against the associated intervertebral endplates, and distracting, realigning, and/or stabilizing them to a desired degree. The external surface of each of the superior member and the inferior member is provided with a plurality of ridges or other friction structures, providing purchase with the associated intervertebral endplates.07-14-2011
20110172777IMPLANT DERIVED FROM BONE - An implant which is particularly suitable for the repair and/or replacement of a skeletal joint, e.g., a vertebral joint, includes a unit of monolithic bone possessing at least one demineralized region exhibiting properties of flexibility and resilience, the demineralized region having diminished or insignificant capacity for promoting new bone growth.07-14-2011
20090105823Artificial intervertebral disc nucleus - Devices and methods for manufacturing devices for treating degenerated and/or traumatized intervertebral discs are disclosed. Artificial discs and components of discs may include an artificial nucleus and/or an artificial annulus and may be comprised of shape memory materials synthesized to achieve desired mechanical and physical properties. An artificial nucleus and/or annulus according to the invention may comprise a filler retention membrane that may be filled with a curable material for deployment. A filler retention membrane according to the invention may comprise one or more partitions to define one or more chambers and may comprise one or more valves for selectively permitting the flow of material within the nuclear region and annular region of the filler retention membrane.04-23-2009
20110270399Mechanical Apparatus and Method for Artificial Disc Fusion and Nucleus Replacement - The present invention relates to a device and method to perform 1) disc fusion, 2) artificial replacement of the nucleus, 3) artificial replacement of the annulus, or 4) artificial replacement of both the nucleus and annulus. The device is designed to be placed into the intervertebral space following discectomy. The invention includes a delivery catheter and an substantially fixed sized mesh loop with a lumen within the mesh loop and a center hole. The mesh loop partially self expands diametrically in diameter upon removal of the introducer sheath and can be further expanded by mechanical means.11-03-2011
20110172773ARTICULATING DISC IMPLANT - An intervertebral disc implant for use in the spine including a first part and a second part, wherein the first part and second part are configured as a joint prosthesis for the spine. The first part includes one of a concave or convex articulating surface and the second part includes one of the other concave or convex articulating surface. One of the concave or convex articulating surfaces is preferably elliptically shaped in at least one direction and does not match and is different than one of the other concave or convex articulating surfaces.07-14-2011
20090043394Spinal fusion implants and tools for insertion and revision - An interbody fusion device in one embodiment includes a tapered body defining a hollow interior or chamber for receiving bone graft or bone substitute material. The body defines exterior threads which are interrupted over portions of the outer surface of the device. The fusion device includes truncated side walls so that on end view the body takes on a cylindrical form. In another embodiment, the tapered body is solid and formed of a porous biocompatible material having sufficient structural integrity to maintain the intradiscal space and normal curvature. The material is preferably a porous tantalum composite having fully interconnected pores to facilitate complete bone tissue ingrowth into the implant. In further embodiments, the fusion devices are provided with osteogenic material to facilitate bone ingrowth. A cap is also provided to block the opening of hollow fusion devices. The cap includes an occlusion body and an elongated anchor. In some embodiments the anchor includes a lip which is engageable to openings in the body wall. Tools are also provided for manipulating caps for interbody fusion devices. In one embodiment the tool includes a pair of prongs each having facing engagement surfaces for engaging the fusion device, and a shaft slidably disposed between the prongs. The shaft has a first end defining a cap-engaging tip for engaging a tool hole in the cap. In one embodiment the cap engaging tip defines threads. In another embodiment the prongs include a pair of releasing members on each of the facing engagement surfaces. The releasing members have a height and a width for being insertable into apertures in a body wall in the fusion device to disengage the elongate anchors from the apertures.02-12-2009
20090043391Customized Intervertebral Prosthetic Disc with Shock Absorption - A prosthesis system comprises plates that can be positioned against vertebrae and a selected resilient core that can be positioned between the plates to allow the plates to articulate. The selected resilient core can be chosen from a plurality of cores in response to patient characteristics, such as age and/or intervertebral mobility, such that the prosthesis implanted in the patient is tailored to the needs of the patient. The plurality of cores may comprise cores with different resiliencies, and one of the cores can be selected such that the upper and lower plates articulate with the desired shock absorbing resiliency and/or maximum angle of inclination when the one selected core is positioned between the plates.02-12-2009
20090276051Polyaryletherketone Artificial Intervertebral Disc - An intervertebral prosthesis for insertion between adjacent vertebrae, in one embodiment, includes upper and lower prosthesis plates and a movable core. The prosthesis plates and optionally the core are formed of polyaryletherketone (PAEK) for improved imaging properties. A metallic insert is provided on each of the PAEK prosthesis plates providing a bone ongrowth surface.11-05-2009
20110172779Expandable Implant, Instrument, and Method - Embodiments of the invention include expandable, implantable devices and methods. Devices expand linearly to provide secure fixation between or among anatomical structures. In some embodiments, an implant replaces one or more vertebral bodies of the spine.07-14-2011
20110172778Vertebral Implant Including Preformed Osteoconductive Insert and Methods of Forming - A vertebral implant for insertion into a patient includes an insert formed from an osteoconductive material and further including a biocompatible polymer body that is formed into the insert. The insert may extend over part of or substantially the entire bone contact surface of the implant. The insert includes a bone contact surface and a substrate interface. The implant may include fibers that extend across the substrate interface from the insert to the body. The insert may be thin relative to the overall thickness of the implant. The insert may be preformed. The insert may be formed using a molding process. The body may be molded onto the insert.07-14-2011
20110172775INTERBODY IMPLANT WITH GRAFT RETAINING BONE CAP - Systems and methods for retaining bone graft material in an interbody implant system are provided. In one embodiment of the invention, there is provided an interbody implant system comprising an implant device and at least one sliding bone cap device. The implant device includes a body defining a cavity for holding bone graft material therein and a plurality of fenestrations on at least one surface of the body to allow bone to grow through the body of the implant. The implant is connectable to at least a portion of the at least one sliding bone cap, wherein once connected, the at least one sliding bone cap prevents the bone graft material from being expelled from the body of the implant during insertion of the implant into the interbody disc space.07-14-2011
20110172776Pivotable Interbody Spacer System And Method - A spinal spacer system includes a handle member, an extension member including a first and a second end, wherein the first end of the extension member is coupled to the handle member. Additionally, a coupling device configured to selectively couple a spacer to the second end of the extension member is disposed on the extension member including an angular fixation member configured to fix the spacer in an angular position relative to the handle member. The spinal spacer system also includes an actuator configured to selectively actuate the coupling device and the angular fixation member. The spacer of the present exemplary spinal spacer system includes a proximal end, a distal end, and a rotatably coupleable engagement member disposed on the proximal end of the spacer. According to one exemplary embodiment, the coupling device includes a single protruding member extending from the second end of the extension member.07-14-2011
20110208308TISSUE PROSTHESIS INSERTION SYSTEM AND METHOD - A tissue prosthesis insertion system (08-25-2011
20100286785METHOD AND APPARATUS FOR SPINAL INTERBODY FUSION - A spinal fusion implant comprising: 11-11-2010
20100145458APPARATUS AND METHOD FOR ANTERIOR INTERVERTEBRAL SPINAL FIXATION AND FUSION - A fixation device, the device includes a housing with a leading deep surface, a trailing outer surface, weight bearing sides, and top and bottom surfaces, a shaft running from the leading deep surface to the trailing outer surface of the housing, and a plurality of blades preloaded onto the shaft in the housing, at least one first blade having at least one cutting extension in a first orientation about the axis of the shaft and at least one second blade having at least one cutting extension in a second orientation about the axis of the shaft that is opposite to the first orientation, each cutting extension having a sharp leading edge,-wherein upon clockwise or counterclockwise rotation of each blade of the plurality of blades about the axis of the shaft in a direction in which the at least one cutting extension of each blade is oriented, the at least one cutting extension of each blade will break an endplate of a vertebra, hook into the vertebra and rigidly secure the vertebra to the device to prevent separation of the vertebra from the device during spinal motion.06-10-2010
20080249625Composite Interbody Spacer - A composite interbody spacer includes a first portion formed of a first material and a second portion formed of a second material.10-09-2008
20080249627Prosthetic Disc Device and Method for Intervertebral Disc Replacement - An implant and method for insertion between two adjacent vertebrae includes an implant body having a leading end and a trailing end spaced apart by a longitudinal dimension of the implant, two diametrically opposed first and second shells, each of the shells having a body portion and a thread portion extending outwardly from the body portion, and a resilient support portion disposed between the two shells. The support portion may be made of an elastomeric material or may include a spring mechanism.10-09-2008
20080249624Method for the Production of Intervertebral Disk Cell Transplants and Their Use as Transplantation Material - The invention relates to a method for the in vitro production of intervertebral disk cartilage cell transplants from affected intervertebral disk tissue from patients and to the use thereof as transplantation material for the treatment of affected intervertebral disks. The invention also relates to a three-dimensional, vital, and mechanically stable intervertebral disk cartilage tissue and to the use thereof as transplantation material for the treatment of affected intervertebral disks and in testing active substances. Furthermore, the invention is directed to the surgical technique for incorporating the transplants, to the intervertebral disk cell transplants and intervertebral disk cartilage tissues produced, and to therapeutic formulations, e.g. injection solutions, which include said tissue and said cell transplants.10-09-2008
20110208314APPARATUS AND METHOD FOR SUPPORTING VERTEBRAL BODIES - An apparatus and method for supporting upper and lower vertebral bodies, including first and second end members adapted for engagement with the vertebral bodies, and at least one elongate support member coupled between the end members to maintain an axial space between the vertebral bodies. In one aspect of the invention, each of the end members has a parametrical or horseshoe-shaped configuration extending about an open inner region and defining a lateral passage communicating with the open inner region to facilitate insertion of the apparatus or the individual end members into the intervertebral space via a posterior surgical approach. In a further aspect of the invention, a fusion member is positioned within the axial space to promote bony fusion between the upper and lower vertebral bodies.08-25-2011
20120296432Advanced Intra-spinal Decompression Implant - A new Intra-spinal decompression implant is introduced that comprises of two plate attachments to a titanium metal implant that fits between the spinous processes of the vertebrae in the lower back, decompressing the neuro elements. The invention has a number of new design features including: double axis adjustable side plates, stepped conical tipped body and piercing tips on side plates, among many mentioned in this disclosure, that improves the quality of the surgery and the result for the patient. More examples are given in this application.11-22-2012
20080319549EXPANDABLE SUPPORT DEVICE AND METHOD OF USE - A device for separating a first bone from a second bone is disclosed. The device can be an expandable orthopedic jack. The device can be used to treat spinal stenosis. The device can be deployed between adjacent spinous processes and then increased in height to reduce pressure on nearby nerves. Methods for using the device are also disclosed.12-25-2008
20080281425Orthopaedic Implants and Prostheses - Disclosed herein are modular spinal implants having components which are interlocked together to form a single implant. Specifically exemplified herein are implants that are sectioned along a longitudinal plane. Implants are disclosed which include channels for inter-fragmentary association with an elongate bone screw and which allow for angular variability of the screw relative to the channel. Also disclosed is an anti-backout mechanism that helps prevent fixators from backing out upon securement of the implant in the spine. Kits comprising different sizes and inclination angles of components are disclosed, which can assist the surgeon in preoperatively assembling an implant to best fit in the surgical site of the patient.11-13-2008
20080228276Intervertebral Prosthesis, Instruments, and Methods of Implanting - A method of implanting an intervertebral prosthesis in an intervertebral space between a first and a second vertebra of a patient's spinal column may include making a first aperture at a first location to permit access to the intervertebral disc space. The first aperture may be sized to allow passage of at least a portion of the intervertebral prosthesis. A second aperture may be made at a second location to permit access to the intervertebral disc space. The second aperture may be sized to allow passage of a surgical instrument. An intervertebral prosthesis for implantation into an intervertebral space between a first and a second vertebra of a patient's spinal column is also disclosed, along with a surgical instrument for implanting the an intervertebral prosthesis.09-18-2008
20080288077Prosthetic Disc Assembly Having Natural Biomechanical Movement - Described here is a surgical device. Specifically, the device is a prosthetic spinal implant that replaces a natural disc in the spine. The device has biomechanical attributes substantially similar to a natural disc.11-20-2008
20080288074INTERNALLY REINFORCED ELASTOMERIC INTERVERTEBRAL DISC IMPLANTS - Two techniques to minimize intervertebral disc height loss due to polymer creep following implantation of an elastomeric disc with the use of internal reinforcement are disclosed. The specific devices and methods relate to use of (i) singular or multiple internal reinforcement members to increase construct stiffness, reduce peripheral bulging and corresponding height loss; and (ii) internal elastomer fillers of various shapes which are compounded into the elastomer to share the load and constrain the elastomeric material from excessive deformations.11-20-2008
20080288078PERCUTANEOUS SPINAL IMPLANTS AND METHODS - Medical devices and related methods for the treatment of spinal conditions are described herein. In one embodiment, a method includes disposing at least a portion of an implant in a space between adjacent spinous processes. The implant has a support member, a distal hub member, and an expandable member. At least a portion of the support member is disposed into the space between the adjacent spinous processes. A threaded member coupled to the distal hub member is rotated in a first rotational direction such that the distal hub member is moved in a first direction along a path defined by a longitudinal axis of the support member and at least a portion of the expandable member is moved to an expanded configuration.11-20-2008
20100298940INSTRUMENTS FOR REORIENTING VERTEBRAL BONES FOR THE TREATMENT OF SCOLIOSIS - An orthopedic device set, including: a plurality of intervertebral spacer elements, each spacer element having a different axial thickness from each other element, the axial thicknesses being selected to increase by an increment from one element to another; and an instrument for holding ones of the intervertebral spacer elements, the instrument comprising a shaft having a distal end, a selectively grasping subassembly for alternatively rigidly holding each spacer element at the distal end so that the spacer element cannot move relative to the instrument, and releasing the spacer element.11-25-2010
20080294262Cages for Setting and Intersomatically Fusing Vertebrae - A system for setting and intersomatically fusing vertebrae comprises at least one case and a plate perpendicularly adjacent to the main plane of said case, wherein said plate (11-27-2008
20080312742Anterior Spinal Fusion and Fixation Cage with Integrated Plate and Method of Use - The present invention provides a fixation and fusion cage with interlocking plate comprising a central cage portion and interlocking plate that rigidly attaches to the front of the cage. The cage can be varied in shape to account for various clinical necessities such as lordosis. The invention may be installed in an offset configuration so as to avoid damage to blood vessels. The device may be constructed from radiolucent material to allow for visualization of bone fusion within the cage.12-18-2008
20080269901SPINAL IMPLANT - A spinal implant for insertion in the intervertebral space is formed as a hollow cage, wedge shaped in profile, with a lesser height leading end for a low profile entry. The cage has two open sides with a plurality of angled teeth along opposite longitudinal edges for engaging the end plates of adjacent vertebrae when the cage is rotated into position. One portion of the angled teeth are angled toward an end of the cage and another portion of the angled teeth are angled away from that end to provide a lock preventing the cage from migrating ventrally or dorsally from the spine. Upon rotation, the leading end has a greater height than the trailing end.10-30-2008
20080269900Surgical Implants - A series of disc prostheses are provided, the series including at least a first prosthesis and a second prosthesis, the first prosthesis differing in size and differing in one or more materials from which it is formed compared with the second prosthesis, the first and second prosthesis being of the same type. In this way a surgeon can select from the series the appropriate size so as to mimic the size of natural disc being replaced in a particular patient. As well as mimicking size, however, the invention also provides that the elastomer used in each different size has a different Shore hardness. This allows the intended stiffness and/or shock absorbing properties to be provided in each disc size and so provides for full mimicking of the natural disc in each size.10-30-2008
20090265008Spinal implant apparatus and methods - A method of inserting and positioning an intervertebral spacer is provided. The spacer includes a longitudinal axis, an on-axis interface coincident with or parallel to the longitudinal axis, and an off-axis interface angled to the longitudinal axis. The spacer's front end may be curved. The method may include inserting the spacer into the disc space utilizing a tool to engage an on-axis interface and then to engage one or more of the off-axis interfaces, which may be used for further modification of the spacer. The tool is moved substantially along a single insertion direction, which may be substantially parallel to a posterior-anterior axis of the disc space. The method may result in the longitudinal axis of the spacer being perpendicular to the insertion direction, or substantially parallel to a medial-lateral axis of the disc space. The spacer may also be positioned in an anterior aspect of the disc space.10-22-2009
20090265007VERTEBRAL INTERBODY COMPRESSION IMPLANT - An apparatus and method for securing boney structures is disclosed which includes a compression mechanism and a force transfer mechanism. The compression mechanism may have bone engagement members that have one portion slideably coupled to a housing positioned within the implant and another portion rotatably coupled to the implant so that a movement of the housing causes the slideable portion to move within the housing and a penetrating member to rotate about the rotatably coupled portion. The force transfer mechanism may be coupled to the compression mechanism to move the housing.10-22-2009
20080306599Spinal interbody device - A multi-material spinal interbody device includes an inner dampener of compressible material in combination with a rigid outer material. The rigidity of the outer periphery of curved surfaces of the device, such as in an eluipsoid shape, provide support as a replacement to the nucleus propulsus, with the inner dampener providing for absorption of spinal forces.12-11-2008
20120296431Prosthetic Intervertebral Disc Implants - Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the sagittal plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.11-22-2012
20120296430EXPANDABLE INTERVERTEBRAL SPACERS AND METHODS OF USE - An intervertebral spacer is inserted between vertebral members in a compact configuration and expanded post-insertion to contact the adjacent vertebral members. The intervertebral spacer comprises a first member and a second member movable with respect to the first member between retracted and extended positions.11-22-2012
20120296429PROSTHETIC INTERVERTEBRAL DISK - An intervertebral disk prostheses for the total replacement of an intervertebral disk of the lumbar and cervical spine has an upper plate having upwardly projecting formations anchoring it to an upper vertebra on its upper face and a concavity on its inner face surrounded by an edge. A lower plate is provided with downwardly projecting formations anchoring it to a lower vertebra on its lower face and a flat inner face surrounding a groove extending front-to-back. A middle plate between the upper and lower plate has on its upper face a convexity that is identically or differently shaped to the concavity on the inner face of the upper plate and a ridge extending front-to-back surrounded by a flat lower face of the middle plate. The ridge has flanks and the groove houses the ridge of the middle plate and permits the ridge to slide front-to-back in the groove.11-22-2012
20080208342SPINAL IMPLANT - An implant is provided that includes a body having a convex and tapered leading end, a convex trailing end, opposing generally planar sides extending between the leading and trailing ends and superior and inferior surfaces. An opening extends through the body between the superior and inferior surfaces. The implant further includes a plurality of protrusions provided on each of the superior and inferior surfaces. Each protrusion has a flattened distal surface. The leading end includes first and second inclined surfaces and an intermediate surface, with the first inclined surface sloping downward from the superior surface to the intermediate surface and the second inclined surface sloping upward from the inferior surface to the intermediate surface.08-28-2008
20080294263Interspinous spacer - An implantable spacer for placement between adjacent spinous processes in a spinal motion segment is provided. The spacer includes a body defining a longitudinal axis and passageway. A first arm and a second arm are connected to the body. Each arm has a pair of extensions and a saddle defining a U-shaped configuration for seating a spinous process therein. Each arm has a proximal caming surface and is capable of rotation with respect to the body. An actuator assembly is disposed inside the passageway and connected to the body. When advanced, a threaded shaft of the actuator assembly contacts the caming surfaces of arms to rotate them from an undeployed configuration to a deployed configuration. In the deployed configuration, the distracted adjacent spinous processes are seated in the U-shaped portion of the arms.11-27-2008
20080208345Intervertebral implant - An intervertebral implant, or disc prosthesis, comprises a pair of cooperating elements being provided in a generally “X” shaped structure. The elements are comprised of cooperating shells that are maintained separated by a resilient material provided therebetween. The elements allow for rotational and translational movement when implanted.08-28-2008
20080294260SPINAL IMPLANT SYSTEM AND METHOD - Embodiments of the present invention provide a spinal implant system and method. One embodiment of the present invention includes a spinal implant comprising, a first implant plate, a second implant plate, a spacer member coupled between the first implant plate and the second implant plate and an end plate coupled to the spacer member, the end plate configured to couple to adjacent vertebrae. The implant plates can include spacer channels that receive the spacer member and insertion tool channels that receive an insertion tool. Preferably, on each implant plate, the spacer channel is near the center of the plate and the insertion tool channels are on either side of the spacer channel. The spacer channels and insertion tool channels can be dovetailed or otherwise shaped to capture a portion of the spacer member and insertion tool. Mating connectors can prevent removal of the spacer member from the spacer channels.11-27-2008
20080281424Orthopaedic Implants and Prostheses - The invention relates to an implant for repairing a damaged body structure that comprises or is associated with bone parts. In one aspect a spinal implant includes an inferior member having an inferior end surface for engaging a superior face of an inferior vertebral body and a longitudinal portion; a superior member having a superior end surface for engaging an opposing inferior surface of a second vertebral body, and a portion adapted to cooperate with the longitudinal portion of the inferior member such that the superior member is moveable relative to the inferior member by sliding in the longitudinal direction; and fixating means for securing the superior member to the inferior member. Also described are instruments and methods used in the repair of such damaged body structures.11-13-2008
20080215154INTERVERTEBRAL DISC ANULUS IMPLANT - Systems for minimally invasive disc augmentation include an anulus augmentation implant suited for minimally invasive deployment. A nucleus augmentation component may be included. The anulus augmentation implant shields weakened regions of the anulus fibrosis and/or resists escape of natural nucleus pulposus and/or the nucleus augmentation component. Methods and deployment devices are also disclosed.09-04-2008
20080208344Intervertebral Implant Devices and Methods for Insertion Thereof - An implant device is provided that is configured for implantation at multiple locations between adjacent vertebrae. The implant device comprises an implant body, a first portion of the implant body, and a second portion of the implant body adjustably interconnected with the first portion. The implant body has a compact orientation and an extended orientation to allow the implant body to be shifted from one orientation to the other orientation for being positioned in any one of areas between the spinous processes of the adjacent vertebrae, between laminar regions of the adjacent vertebrae, spanning an opening in the annulus between the adjacent vertebrae, and in the intervertebral space between the adjacent vertebrae.08-28-2008
20080249628Multi-component interbody device - A dynamic device for implantation within a disc space between two adjacent vertebral bodies is disclosed. The device comprises two or more bodies interconnected via at least one connecting means such that at least one body is permitted relative motion with respect to the at least one other body. The device is configured to assume various configurations including a first configuration suitable for minimally invasive insertion and a second configuration suitable for residence within the disc space. Associated variations and insertion instruments are also disclosed.10-09-2008
20080249626Arthrodesis of Vertebral Bodies - Spinal arthrodesis is accomplished by implanting an intervertebral spacer made of a biocompatible material that promotes tissue ingrowth and bony fusion. The spacer is implanted into a graft bed formed between adjacent vertebral bodies. The spacer includes a body portion having anterior and posterior end faces. Opposed flanges project outwardly from the body portion at axial locations adjacent the anterior and posterior end faces. The flanges taper radially outwardly to an outer edge that is sharp enough to penetrate vertebral end plates. After a graft bed has been formed, and after the vertebral bodies have been distracted, the spacer is inserted into the graft bed and positioned such that the flanges are adjacent the vertebral end plates. Upon release of the distraction, the vertebral bodies will move toward each other and the flanges will be pressed into the end plates. The effect of the pressing action is to secure the spacer tightly in place within the graft bed such that migration of the spacer is prevented.10-09-2008
20080243253Intervertebral Disc Prosthesis - The invention relates to an intervertebral disc prosthesis consisting of: an upper plate, a lower plate having an essentially-flat support surface, and an intermediate element comprising a base which is equipped with a rim and which is topped with a spherical cap. The upper plate and the cap define a ball and socket joint therebetween. The base of the intermediate element comes into contact with the support surfaces, while the lower plate is equipped with a guide comprising two edges which maintain the intermediate element therebetween. The rim of the base comes into contact with the edges and said rim is circular in shape and adapted to enable the intermediate element to roll along the length of the edges10-02-2008
20080294261Method for treating herniated discs - A method is effective for treating herniated discs. The method includes (a) surgically remove a herniated portion of disc annulus from a herniated disc, or surgically depressing and holding a herniated portion of disc annulus within original boundaries of the herniated disc, and (b) re-enforcing the surgically treated disc with an effective amount of a biocompatible degradable polymeric compound, such as a fibrin sealant.11-27-2008
20110208311Device For Securing An Impalnt To Tissue - An implant device is provided for implantation within an intervertebral space between adjacent vertebrae comprising an implant body, a rotatable portion and a piercing portion configured to pierce the adjacent vertebra.08-25-2011
20090157185Prosthetic Monolithic Spinal Discs and Method of Customizing and Constructing Discs - The process uses micro-machining for forming a prosthetic spinal disc in which one of more springs bias adjacent vertebrae apart and absorb shock. Instead of using conventionally wound springs, the entire prosthesis including the springs are formed by micro-machining a block of material. Imaging, load and other patient data provide the parameters for the prosthesis.06-18-2009
20080269903Intervertebral disc nucleus replacement implants and methods - An intervertebral disc nucleus replacement implant for positioning between adjacent vertebrae of a spinal segment comprises opposing superior and inferior end portions substantially aligned along a longitudinal axis and a compressible, elastic body surrounding part of the end portions. Each of the end portions includes a convex outer surface for contacting respective endplates of the adjacent vertebrae. Additionally, the elastic body includes an outer surface, with the implant having an outer periphery comprising the outer surfaces of the end portions and the outer surface of the body. In certain embodiments, the elastic modulus of the body is lower than the elastic modulus of each of the end portions and the body extends outward of the end portions transverse to the longitudinal axis, such that the body is configured to limit the amount of subsidence of the implant relative to the adjacent vertebrae.10-30-2008
20100137988Compliant Interbody Fusion Device With Deployable Bone Anchors - An interbody fusion implant with deployable bone anchors includes a support member, a monolithic body that accommodates the support member, and a longitudinal hole along a vertical length of the support member. The support member includes a first end and a second end. The second end includes two flanges. The flanges are configured to dig into an endplate of a vertebral body. The flanges of the support member provide a location fixation on an implantation of the interbody fusion implant into the vertebral body. The support member may also include at least one of a clip shaped support member and an I-shaped support member. The I-shaped support member may allow a rigidity and a support in flexion-extension through a living-hinge positioned in a middle of the I-shaped support member. The longitudinal hole sustains loads imported on the interbody fusion implant and allows the interbody fusion implant to flex freely.06-03-2010
20100137991PROSTHETIC NUCLEUS WITH A PREFORMED MEMBRANE - Multi-membrane prosthetic nucleus and implants using same are disclosed having an outermost membrane that is semi-compliant and limits the innermost membrane and any intermediate membranes that are highly compliant from bulging out of any opening in the annulus fibrosus. The outermost membrane may help protect the innermost membrane from trauma including any trauma before the innermost membrane is expanded through the injection of prosthetic nucleus material and trauma during the expansion of the innermost membrane in response to the injection of prosthetic nucleus material. Also disclosed is a coated membrane which combines the mechanical properties of the foundation layer with the low permeability to the passage of the flowable prosthetic material of the coating. This coated membrane is semi-compliant and prevents the prosthetic nucleus from bulging out of any openings in the annulus fibrosus. Use is made of injected prosthetic nucleus material that changes to a non-flowable state.06-03-2010
20100145457METHOD AND SYSTEM FOR MAMMALIAN JOINT RESURFACING - A method and system for the creation or modification of the wear surface of orthopedic joints, involving the preparation and use of one or more partially or fully preformed and procured components, adapted for insertion and placement into the body and at the joint site. In a preferred embodiment, component(s) can be partially cured and generally formed ex vivo and further and further formed in vivo at the joint site to enhance conformance and improve long term performance. In another embodiment, a preformed balloon or composite material can be inserted into the joint site and filled with a flowable biomaterial in situ to conform to the joint site. In yet another embodiment, the preformed component(s) can be fully cured and formed ex vivo and optionally further fitted and secured at the joint site. Preformed components can be sufficiently pliant to permit insertion through a minimally invasive portal, yet resilient enough to substantially assume, or tend towards, the desired form in vivo with additional forming there as needed.06-10-2010
20100145460ZERO-PROFILE INTERBODY SPACER AND COUPLED PLATE ASSEMBLY - An implant for insertion into the disc space between vertebrae. The implant including a spacer portion, a plate portion coupled to the spacer portion, a plurality of bone fixation elements for engaging the vertebrae and a retention mechanism for preventing the bone fixation elements from postoperatively uncoupling from the implant.06-10-2010
20100145456Lockable spinal implant - A spinal implant which is configured to be deployed between adjacent vertebral bodies. The implant has at least one extendable support element with a retracted configuration to facilitate deployment of the implant and an extended configuration so as to expand the implant and effectively distract the disc space, stabilize the motion segments and eliminate pathologic spine motion. Angular deformities can also be corrected, and natural curvatures restored. Preferably, the implant has a minimal dimension in its unexpanded state that is smaller than the dimensions of the neuroforamen through which it typically passes to be deployed within the intervertebral space. The implant is provided with a locking system preferably having a plurality of locking elements to lock the implant in an extended configuration.06-10-2010
20120143338REPLACEMENT OR SUPPLEMENTATION OF A NUCLEUS PULPOSUS USING A HYDROGEL - A nucleus pulposus of an intervertebral disc is supplemented or replaced by a physiologically fully hydrated solid hydrogel intervertebral body comprising a polyvinyl alcohol copolymer, wherein the solid hydrogel intervertebral body exhibits an osmotic pressure of from 0.1 to 0.3 megapascals prior to insertion into a patient, the solid hydrogel intervertebral body having a ratio of length to principal transverse dimension not less than about 5:1.06-07-2012
20120197403EXPANDABLE MEDICAL IMPLANT - An implant with an adjustable height for spacing apart skeletal structures. The implant includes a base with a hollow interior. Collars include threaded inner surfaces and are positioned within the hollow interior of the base and are rotatable relative to the base. Threaded posts extend outward from the base and are threaded into the collars. Rotation of the collars adjusts an amount that the threaded posts extend outward from the base. An overall height of the implant can be adjusted to accommodate the size of the space and for the posts to contact against and space apart the skeletal structures.08-02-2012
20110270402DEVICES AND TECHNIQUES FOR A POSTERIOR LATERAL DISC SPACE APPROACH - This invention relates to devices and instruments for implant insertion through a posterior lateral opening to the disc space. The instruments include an implant inserter, and the devices include a spinal fusion implant engageable by the implant inserter. The implant provides bilateral support of the adjacent vertebrae when inserted into the disc space from a postero-lateral approach.11-03-2011
20120197406Anterior Prosthetic Spinal Disc Replacement - The present invention relates generally to a prosthetic spinal disc for replacing a damaged disc between two vertebrae of a spine. The present invention also relates to a method for implanting a prosthetic spinal disc via anterior or anterior lateral implantation. Other surgical approaches for implanting the prosthetic disc may also be used.08-02-2012
20090030519INTERVERTEBRAL CAGE DESIGNS - Cage systems that improve upon the prior art in various ways. In the preferred embodiments, devices are radiolucent, with markers, thereby allowing visualization of placement without excessive obscuration. Devices according to the invention eliminate multiple steps, instruments and trays, while being capable of a custom fit. The devices according to the invention permit easier and greater access to end plate surface area, and can be used with autografts, allografts, and biologics.01-29-2009
20080234826Modular Lumbar Interbody Fixation Systems and Methods with Reconstruction Endplates - Modular lumbar interbody fixation systems and methods with reconstruction endplates are provided. A representative system includes: a pair of engaging plates adapted to fit between and engage the vertebral bodies, at least one engaging plate of the pair of engaging plates being a reconstruction endplate, the reconstruction endplate having a trough and configured to receive a fixing agent; and an alignment device positionable between the pair of engaging plates, the alignment device being operative to maintain a disc space between the vertebral bodies during use.09-25-2008
20090088855POSTERIOR ROD CAPTURING SPACER DEVICE AND METHOD - An implantable device includes a spacing member and an elongate member. The elongate member includes a body portion having a first end coupled to the spacing member and a second end having a retention member. In a system for maintaining disc space between adjacent vertebrae, the implantable device is used in conjunction with a spine fixation member. The spine fixation member includes bone anchors and a spinal rod for releasably securing the retention member of the elongate member thereto in order to prevent expulsion of the spacing member from the disc space. Methods of using the system include unilaterally and bilaterally replacing diseased or damaged intervertebral discs from a posterior or transformational approach.04-02-2009
20090088851COMBINATION PLATE AND DISC PROSTHESIS - Orthopedic medical devices for use in orthopedic procedures are provided, having in certain embodiments a first member and a second member configured to replace a disk between a first vertebra and a second vertebra. Additionally, the second member is also configured to fuse the second vertebra to at least a third vertebra. In one embodiment, the second member has a first portion that is elastic and a second portion that is substantially rigid. In other embodiments, the second member is substantially rigid. In yet another embodiment, the first member and second member are configured to replace a disk between the first vertebra and the second vertebra, and the second member and a third member are configured to replace a second disk between the third vertebra and a fourth vertebra. In this embodiment, the first, second, and third members may be connected to vertebrae by various anchors.04-02-2009
20100145462PREFORMED MEMBRANES FOR USE IN INTERVERTEBRAL DISC SPACES - Spinal motion preservation assemblies adapted for use in a spinal motion segment are disclosed including the process for delivering and assembling the spinal motion preservation assemblies in the spinal motion segment via an axial channel created with a trans-sacral approach. The disclosed mobility preservation assemblies provide for dynamic stabilization of the spinal motion segment. Preformed membranes are disclosed for use within an intervertebral disc space. The preformed membrane may include an approximation of the final shape of a filled membrane to limit or eliminate the need for the membrane to stretch during filling. Other variations and implementations of the teachings are disclosed, including the sheathed delivery of membranes in order to protect the membranes before and during deployment.06-10-2010
20100145461INSTRUMENTATION AND PROCEDURE FOR IMPLANTING SPINAL IMPLANT DEVICES - An instrumentation set may include insertion instruments for forming an implant between bone structures. The insertion instruments may include a spreader and a separator. The bone structures may be vertebrae. Implant members may be attached to the spreader and positioned between the bone structures. The separator may be inserted into the spreader to establish a desired separation distance between the implant members. Connectors may be inserted into the implant members to join the implant members together and form the implant. The insertion instruments may be removed. A seater may be used to set the position of the connectors relative to the implant members to inhibit disassembly of the implant.06-10-2010
20110208313SPINAL FUSION IMPLANT WITH BONE SCREWS AND A BONE SCREW LOCK - An interbody spinal fusion implant made of a material other than bone adapted for placement across an intervertebral space formed across the height of a disc space between two adjacent vertebral bodies. The implant has a leading end that is curved to form a portion of a circle from side to side, sides that are at least in part straight, and a trailing end with a bone screw receiving hole for receiving at least one bone screw to engage the vertebral bodies.08-25-2011
20110208309Spinal Fusion Implant and Related Methods - A spinal fusion implant of non-bone construction adapted to be introduced into any variety of spinal target sites, in particular the lumbar spine via a transforaminal surgical approach.08-25-2011
20110208307TOTAL DISC REPLACEMENT WITH W-SHAPED SPRING ELEMENTS - An intervertebral implant for mounting between superior and inferior vertebrae includes first and second endplates and an inlay. The first endplate has a first vertebra engagement surface and a first inner surface. The first vertebra engagement surface is mounted to the superior vertebra in an implant positions. The second endplate has a second vertebra engagement surface and a second inner surface. The second vertebra engagement surface is mounted to the inferior vertebra in the implanted position. The inlay is mounted to and between the first and second inner surfaces in an assembled configuration. The inlay includes a first mounting plate, a second mounting plate, a first W-shaped spring and a second W-shaped spring. The first and second W-shaped springs are mounted between the first and second mounting plates. The first and second W-shaped springs have longitudinal axes that are generally parallel to the insertion axis.08-25-2011
20090082869DOUBLE ENDED PYRAMID ADAPTER - A prosthetic coupling providing height and rotation adjustability. Exemplary embodiments include a Double Ended Pyramid Adapter (DEPR) allowing a prosthesis to be height adjusted and rotated using a single adapter. An exemplary DEPR also has an anti-rotation locking feature that selectively inhibits rotation of the components with respect to one another, and can selectively be unlocked to allow rotation when desired. An exemplary DEPR adapter allows for height and rotation adjustment, and may be utilized with transfemoral patients for height adjustments between the distal end of the socket and the prosthetic knee.03-26-2009
20090076608Intervertebral disc replacement prosthesis - An intervertebral disc replacement prosthesis for placement between a first vertebra and a second vertebra adjacent to the first vertebra. In one embodiment, the intervertebral disc replacement prosthesis includes a resilient member, which is formed from a single flat member, and three support members. The support members are housed in the resilient member that is arranged, in use, to be secured to the first and second vertebrae. The intervertebral disc prosthesis can generate a coupled motion in more than one possible direction responsive to a possible movement of at least one of the first and second vertebrae, among the resilient member, the first support member, the second support member, and the third support member.03-19-2009
20090076607Collapsible and Expandable Device and Methods of Using Same - The present invention provides a device (03-19-2009
20090143862SYSTEM AND METHOD FOR BLOCKING AND/OR RETAINING A PROSTHETIC SPINAL IMPLANT - Devices for anchoring and/or blocking spinal implants in an intervertebral disc space are disclosed. In one aspect of the invention the device includes a rigid blocking member having one end unconnected and free to block a spinal implant, and another end attached to a securing member to secure the blocking member to the spine. Methods for using the inventive anchoring/blocking implants are also provided.06-04-2009
20090143861Intervertebral spacer device having recessed notch pairs for manipulation using a surgical tool - Instrumentation for implanting an artificial intervertebral disc includes static trials and a dynamic trial for determining the appropriate size of disc to be implanted, static trial holders for manipulating the static trials, inserter/impactors for inserting and removing the static trials and for inserting the artificial intervertebral discs, repositioners/extractors for repositioning and extracting the static trials or the artificial intervertebral discs, and a leveler for setting the proper position of the artificial intervertebral disc. Methods for using the same are also disclosed. Features for artificial intervertebral discs and intervertebral spacer devices useful for manipulation by the instrumentation are also disclosed.06-04-2009
20090118833IN-SITU CURABLE INTERSPINOUS PROCESS SPACER - The present invention provides an expandable member useful in treating spinal stenosis. The expandable member may be introduced into the patient between adjacent spinous processes in an unexpanded configuration using minimally invasive techniques and expanded with a flowable material. The expanded member will function as an interspinous process spacer by acting as a spacing device to maintain separation between adjacent vertebrae.05-07-2009
20090138091TAPERED BONE FUSION CAGES OR BLOCKS, IMPLANTATION MEANS AND METHOD - Methods for fusion inside a forward widely tapering human disc space. A stabilizing/guiding system is driven into and against the disc space. The device is further stabilized by spreading and gripping means inside both vertebral end plates. Rod retaining members hold calibrated rod units whose adapted tips perform reaming and threading of the disc space. Subsequently, the tapered cage or implant can be inserted by a free-hand method under direct vision into the prepared and tapered bed. Rod unit divergent angulation is set to match that of the disc space as well as the implants so they obtain optimal distributed purchase of vertebral bone. In one embodiment, inserts are confluent with parallel medial walls rather than their long axes, increasing torsional or lateral translational stability and simplifying placement of additional bone chips. No tubular guide means are required.05-28-2009
20100004748INTERVERTEBRAL PROSTHESIS - An intervertebral prosthesis including an elastically deformable disc arranged around an axis with upper and lower surfaces, oriented generally perpendicular to the axis, for engaging the faces of adjacent vertebral bodies between which a natural disc has been wholly or partially removed. The disc can have an exterior wall and be arranged to undergo flexion, compression and expansion in response to forces applied by the supporting vertebra to the disc. A pin can be provided to limit movement of the disc. A portion of the disc such as the central section can have one or more generally horizontal slits extending perpendicular to the axis to provide a spring function.01-07-2010
20090138089Corpectomy implant - The present invention describes an expandable vertebral implant and the method of use. The longitudinally expandable vertebral implant includes telescoping sections adapted for incremental expansion and ease of securement at any desired increment in situ, and constructed and arranged to engage opposing vertebrae. The corpectomy device is a distractible vertebral body replacement for the thoracic and lumbar spine. The device is cylindrical shaped having an inner and outer sleeve made adjustable by use of locking pads formed integral with the outer sleeve for use in engaging parallel circumferential locking grooves formed along the outer side surface of the inner sleeve.05-28-2009
20090177285Devices and techniques for a posterior lateral disc space approach - This invention relates to devices and instruments for implant insertion through a posterior lateral opening to the disc space. The instruments include an implant inserter, and the devices include a spinal fusion implant engageable by the implant inserter. The implant provides bilateral support of the adjacent vertebrae when inserted into the disc space from a postero-lateral approach.07-09-2009
20090187246Interbody implants for spinal alignment procedures - Spinal implants are provided that include a body having opposite vertebral bearing surfaces. One of the bearing surfaces includes engaging means to engage an adjacent vertebra and the other of the bearing surfaces provides a substantially smooth surface profile to permit another of the adjacent vertebra to be moved along and in contact with the smooth bearing surface as corrective forces are applied to manipulate the other of the adjacent vertebrae into alignment.07-23-2009
20090187248LORDOTIC EXPANDING VERTEBRAL BODY SPACER - An expandable medical implant for supporting bone structures includes a curved outer member to cooperatively engage a first bone structure and a curved inner member configured to cooperatively engage a second bone structure. The curved inner member is receivable within and movable relative to the curved outer member along an arc bounded by the curvature of the curved outer member. One of the curved outer and inner members may include a tapered surface and the other of the curved outer and inner members may include a scalloped surface. The implant may include a locking element disposed between the tapered and scalloped surface. The locking element is movable between a locked position engaging the tapered surface and a roughened locking surface to inhibit a decrease in the overall height of the implant and an unlocked position permitting at least an increase in the overall height of the implant.07-23-2009
20090143863METHOD FOR DISC REGENERATION USING STEM CELL DERIVED CHONDROPROGENITORS - A method for restoring a degenerated intervertebral disc. The method includes preparing a material including embryonic stem cells, placing the material in the degenerated disc and causing the material to generate notochordal cells in the disc to regenerate the disc. Preparing the material includes differentiating the embryonic stem cells into chondroprogenitors.06-04-2009
20090143860MODULAR LATERAL EXPANSION DEVICE - A modular lateral expansion device to be inserted into an intervertebral space. The modular lateral expansion device includes a first member and a second member. The first end and the second end comprise a first extension and a second extension respectively. The first extension and second extension outwardly protrude from the first member in a same direction and are positioned at an axis transverse to a longitudinal axis of the first member. The second member comprises a first end and a second end. The first end comprises a plurality of outwardly extended arms and a first passage positioned between the plurality of outwardly extended arms. The first end of the second member is dimensioned and configured to couple to the first end of the first member. The second end comprises a second passage dimensioned and configured to accommodate the second extension of the first member.06-04-2009
20090012623Disk Fusion Implant - An implant strip is disclosed. In some cases, the prosthesis can take the form of an implant strip that may be implanted through the use of a surgical procedure that minimizes incision sizes and may be considered less invasive than typical spinal implant procedures. The implant strip includes provisions for implantation, including teeth, spacing provisions and various shapes.01-08-2009
20080306596INTERBODY FUSION DEVICE AND ASSOCIATED METHODS - A method and apparatus is provided for use in spinal fusion procedures. An interbody fusion device has a first piece that is a load bearing device designed to bear the axial loading from the end plates of adjacent vertebrae. A second piece of the interbody fusion device is a retention device whose function is to prevent migration of the load bearing device. One or more fasteners secure the retention device to the vertebrae above and below the load bearing device. The fasteners cause the end plates of the vertebrae to compress the end plates to the load bearing device to facilitate proper fusion.12-11-2008
20080306595Porous Implant For Spinal Disc Nucleus Replacement - A spinal implant is provided in which the implant includes a porous component (12-11-2008
20080306598SPINAL IMPLANT WITH BIOLOGIC SPONGE - The present invention provides an intervertebral prosthesis generally defining a first wall, a second wall, sidewalls extending from the first wall to the second wall, and an upper surface and a lower surface. One or more passages may be included providing for an affixation element, to be inserted therethrough. The passages may each include a first portion for receiving a head or tip of an affixation element, and a second portion of a smaller diameter, where a substantial amount of the second portion of the passage located above or below a midline of the prosthesis. One or more openings may also be provided on the spinal prosthesis for coupling the prosthesis to a surgical tool, and the upper and lower surfaces of the prosthesis may include a depression or portion void of any teeth for the insertion of the prosthesis where a distraction tool is situated about the surgical site.12-11-2008
20090024219POLYMERIC JOINT COMPLEX AND METHODS OF USE - The invention describes a variety of implantable artificial joint complexes adapted for implantation within a target joint space within a human body. The joint complexes comprise: an expandable joint segment adapted to fit within the target joint space; and at least one of a first cannulated anchor adapted to engage the expandable joint segment and adapted to engage a bony structure adjacent the target joint space; and a second anchor adapted to engage the expandable joint segment and adapted to engage a bony structure adjacent a target joint space. The invention also discloses methods of implanting a patient specific artificial joint complex. The methods include the steps of: accessing a target joint space by creating an access hole through an adjacent bony structure; inserting a joint complex device having a cannulated anchor and an expandable joint segment through the access hole with the expendable joint segment being positioned between the surfaces forming the joint; injecting material into the expandable joint segment; and sealing access to the target joint space.01-22-2009
20090024218Intervertebral Implant - An intervertebral implant, specifically an artificial intervertebral disk, with a central axis, and an upper plate-shaped section, suitable for laying onto the base plate of a vertebral body lying on top, a lower plate-shaped section, suitable for laying onto the cover plate of a vertebral body lying below, wherein a central, plate-shaped section is arranged between the upper and the lower sections, a first circular-cylindrical rod with a longitudinal axle is arranged between the upper section and the central section, and a second circular-cylindrical rod with a longitudinal axle is arranged between the lower section and the central section.01-22-2009
20090024217EXPANDABLE BONE DEVICE - An expandable bone device including first and second bone support elements, a manipulator positioned between the first and second bone support elements and connected to them by link members, the manipulator adapted to move the first and second bone support elements between a collapsed orientation and an expanded orientation, wherein in the collapsed orientation the first and second bone support elements are drawn towards the manipulator and in the expanded orientation the first and second bone support elements are moved outwards away from a longitudinal axis of the manipulator, and deformable support struts connected between the manipulator and the first and second bone support elements that deform when moved by the manipulator from the collapsed orientation to the expanded orientation and vice versa, wherein in the expanded orientation the deformable support struts form a structure that maintains the first and second bone support elements in the expanded orientation.01-22-2009
20090204218DISTRACTABLE SPINAL IMPLANT ASSEMBLY - A spinal implant assembly includes a housing for containing a bearing member therein and seating within an intervertebral space and a bearing member disposed within the housing for enabling disc-like movement between vertebrae defining the intervertebral space. The combination of the housing and bearing member provide a distracting mechanism disposed within the housing halves 08-13-2009
20090082868Prosthesis for restoring motion in an appendage or spinal joint and an intervertebral spacer - A motion restoring prosthesis to be interposed between the ends of two bones adjoining a mammalian appendage or spinal joint is formed of two components with the components having inner cooperating articulating surfaces and outer bone engaging surfaces. At least one of the components has an inner section made of relatively hard, stiff material defining one or the articulating surfaces and an outer section made of a softer material defining the bone engaging surface. The softer material having a hardness/stiffness characteristic compatible with the bone to reduce stress shielding and more evenly distribute the forces from the articulating surfaces to the associate bone interface.03-26-2009
20090292362INTERVERTEBRAL IMPLANT AND METHODS OF IMPLANTATION AND MANUFACTURE - In one aspect, an intervertebral prosthetic device for implantation within a disc space between adjacent first and second vertebral endplates includes a body including a main body with an outer surface bearing portion configured to interface with and articulate relative to one of the first and second vertebral endplates. It also comprises an orientation protrusion shaped in a manner to at least partially inhibit rotation of the body in the disc space. The body is sized in at least one direction to fit inside a boundary defined by a travel path of the first vertebra relative to the second vertebra, the travel path forming an arc about a center of rotation of the first vertebra, the travel path being spaced from the center of rotation a distance substantially equivalent to the distance from the center of rotation to the second vertebral endplate.11-26-2009
20090198337MEDICAL IMPLANTS AND METHODS - An apparatus includes a spacer, a proximal retention member, a distal retention member, and an actuator. The spacer is configured to engage adjacent spinous processes. The proximal retention member is coupled to the spacer such that a portion of the proximal retention member is in contact with a proximal surface of the spacer. An axis within a plane defined by a first surface of the distal retention member is non-parallel to and non-normal to a longitudinal axis of the spacer. The distal retention member is movably coupled to the spacer such that a second surface of the distal retention member contacts a distal surface of the spacer. The actuator is movably coupled to the spacer and is configured to move relative to the spacer along the longitudinal axis. An actuation surface of the actuator is slidably coupled to and substantially parallel to the first surface of the distal retention member.08-06-2009
20090054987SPINAL FUSION ASSEMBLY - An improved interbody spinal fusion assembly for fusing a first vertebra to a second vertebra includes an interbody cage, a first plate and a second plate. The interbody cage is configured to be implanted between the first and second vertebras and comprises through-apertures configured to be filled with bone fusing material. The first plate comprises an L-shaped body having a first end configured to be attached to a first location of the interbody cage, a second end configured to be attached to a first location of the first vertebra and a corner formed between the first and second ends and configured to be attached to a second location of the first vertebra or a third location of the interbody cage. The second plate comprises a first end configured to be attached to a second location of the interbody cage and a second end configured to be attached to a first location of the second vertebra.02-26-2009
20110144754Prosthetic intervertebral discs assemblies having compressible core elements with enhanced torque transmission - This description deals with a medical device, specifically a prosthetic intervertebral disc having a compressible core that is mechanically interactive with the prosthetic disc's end plates thereby providing excellent torque or twisting transmission between the end plates.06-16-2011
20090192617Intervertebral Prosthetic Disc With Shock Absorbing Core Formed With Disc Springs - An artificial intervertebral disc has upper and lower prosthesis plates disposed about a shock absorbing mobile core. The shock absorbing core includes one or more spring washers or disc springs between rigid upper and lower surfaces of the core to allow the upper and lower surfaces to move resiliently toward and away from each other. This allows the core to absorb forces applied to it by the vertebrae. The components of the shock absorbing core including the disc springs are formed of rigid materials having high durability and biocompatibility.07-30-2009
20090054991TRANSFORAMINAL LUMBAR INTERBODY FUSION CAGE - A spinal cage system for inserting a spinal cage assembly into a spine to separate and support adjacent spinal vertebrae, includes a first cage member; a second cage member; and an articulating mechanism adapted to connect the first cage member to the second cage member and to permit the first and second cage members to move relate to each other. An insertion instrument is adapted to capture the spinal cage assembly for insertion of the spinal cage assembly into a spine and to rotate the first and second cage members relative to each other to achieve a desired orientation in the spine.02-26-2009
20090054988Interspinous implants and methods for implanting same - A spinal implant for treating lumbar spinal stenosis or as an adjunct to spinal fusion. The implant includes a body portion having an interior cavity. A plurality of locking wings are adapted and configured to move between a stowed position retracted within the interior cavity of the body portion and a deployed position extended from the interior cavity of the body portion. In the deployed position, the wings fix the implant in a selected interspinous space. A cable and wheel arrangement moves the plurality of locking wings from the stowed position to the deployed position and a ratchet/pawl assembly prevents backward movement of the wings.02-26-2009
20090082872Intervertebral implant - In an intervertebral implant with at least one abutment surface formed from a plurality of parts for a vertebral body, which parts are movable relative to one another between an insertion position, in which the intervertebral implant has a small cross section, and a working position, in which the intervertebral implant has a larger cross section and in which the parts jointly form the abutment surface, and with an adjusting means for moving the parts out of the insertion position into the working position, in order to provide an uncomplicated structure having small dimensions, it is proposed that the adjusting means have at least one expansion body, which increases in volume when filled with a flowable medium and thus moves the parts into the working position.03-26-2009
20090082871METHOD AND APPARATUS FOR SPINE JOINT REPLACEMENT - A prosthesis for the replacement of the cartilaginous structures of a spine motion segment is described. The prosthesis comprises an intervertebral disc prosthesis in combination with a facet joint prosthesis.03-26-2009
20090082870TRANSPEDICULAR, EXTRAPEDICULAR AND TRANSCORPOREAL PARTIAL DISC REPLACEMENT - A nucleus replacement mimics a native annulus in shape and function for use in partial disc arthroplasty. The nucleus replacement includes a jacket having a compartment, a first anchoring limb on one side of the compartment, and a second anchoring limb on an opposite side of the compartment. The jacket is insertable into a disc space through an operating channel in at least one of the vertebral pedicle and the vertebral body. A shock absorbing material is injectable into the compartment after installing the jacket into the disc space. The shock absorbing material has characteristics that absorb loads on the replacement.03-26-2009
20090082867INTERVERTEBRAL DISC PROSTHESIS FOR UNIVERSAL APPLICATION - An Invertebral Disc Model Prosthesis, of the type denominated of double articulation, to substitute the function and the movement of intervertebral discs, for universal application due to its principal characteristic of being able to be used as a constrained, semi-constrained or non-constrained prosthesis, specially indicated for treatment of pathological degenerative of the intervertebral discs, discal hernias, by anterior approach, transition syndromes of supra-adjacent disc, chronic lumbagos resistant to conserver treatment, chronic adjacent vertebral instability, made from materials of proved biocompatibility, endowed with a low profile that makes it optimum for its implant in the human being and which consists of three pieces, two plates, upper and lower, and am intermediate piece , which serves for the substitution of the discs of the lumbar and cervical column, capable of being placed by the anterior or lateral approach.03-26-2009
20110230970INTERVERTEBRAL IMPLANTS AND GRAFT DELIVERY SYSTEMS AND METHODS - According to some embodiments, a method for promoting spinal fusion using a spinal implant comprises providing a spinal implant, wherein the spinal implant comprises an anterior wall, a posterior wall and two lateral walls configured to extend between the anterior wall and the posterior wall. In some embodiments, the spinal implant further comprises at least one internal chamber generally positioned between the anterior wall, the posterior wall and the two lateral walls, wherein the internal chamber being is adapted to receive at least one graft and/or other fill material. In some arrangements, the anterior wall of the spinal implant comprises at least one opening or hole that places the internal chamber in fluid communication with an exterior area or portion of the spinal implant. In one embodiment, at least one of the two lateral walls comprises an access port. The method additionally includes positioning the spinal implant between two adjacent vertebrae of a patient and directing at least one graft and/or other fill material into the internal chamber of the spinal implant through the access port. In some embodiments, at least a portion of the graft and/or other fill material delivered into the internal chamber is configured to exit through the one or more of the openings of the anterior wall.09-22-2011
20110230969IMPLANT FOR STABILIZING BONES OR VERTEBRAE - An implant for stabilizing bones or vertebrae is provided, the implant including an implant body that can be fixed by means of at least a first screw and a second screw to the bone or a vertebra, wherein the implant body includes at least a first hole and a second hole. Each of the first screw and the second screw includes a screw thread. Each of the first hole and the second hole has a threaded portion with an internal thread for cooperating with the screw thread, wherein the threaded portion of at least the first hole is formed of a flexible material. A guiding member that is a separate part is insertable into the implant body such that it is arranged at least partially within the first hole. The guiding member is configured to guide the first screw when the firstscrew is screwed through the threaded portion of the first hole. The second screw is spaced apart from the guiding member when the second screw is screwed through the threaded portion of the second hole.09-22-2011
20110230967Intervertebral Nucleus and Annulus Implants and Method of Use Thereof - The invention encompasses devices and methods for treating one or more damaged, diseased, or traumatized intervertebral discs to reduce or eliminate associated back pain. Specifically, the invention encompasses intervertebral nucleus and annulus implants that are resistant to migration in and/or expulsion from an intervertebral disc space. The invention further encompasses kits including the implantable devices of the invention and associated delivery tools to treat annular and nuclear tissue.09-22-2011
20090099661MULTIPLE COMPONENT OSTEOIMPLANT - The present invention is an osteoimplant that comprises two or more portions, wherein two or more of the portions are self-interlockable with one another to form the desired osteoimplant. The components of the osteoimplant may be of the same material or of different materials. Suitable materials may include cortical bone, cancellous bone, structural polymer, other biomaterial, or any combination thereof.04-16-2009
20090005872Intervertebral Motion Disc With Helical Shock Absorber - This invention relates to an intervertebral motion disc having two opposing endplates, a central articulating core, and a peripheral helical shock absorber.01-01-2009
20120078374SPINAL MIDLINE INDICATOR - A spinal midline indicator (03-29-2012
20120078373STAND ALONE INTERVERTEBRAL FUSION DEVICE - An angled fixation device, such as an angled screw. This angled fixation device may be used by the surgeon to secure a spacer to a spinal disc space. The proximal end portion of the angled fixation device is driven perpendicular to the anterior wall of the spacer, and so is parallel to the vertebral endplates and in-line with the inserter. The distal end portion of the angled fixation device is oriented at about a 45 degree angle (plus or minus 30 degrees) to the vertebral endplate it enters.03-29-2012
20120078372NOVEL IMPLANT INSERTER HAVING A LATERALLY-EXTENDING DOVETAIL ENGAGEMENT FEATURE - A spinal implant inserter having a) an outer sleeve having a bore, and b) a forked inner shaft having a proximal rod and a pair of distal tynes extending therefrom, each distal tyne comprising an engagement feature having a laterally-extending dovetail feature. An assembly comprising the implant inserter and an implant having a pair of mating dovetail features.03-29-2012
20120078371FUSION CAGE WITH IN-LINE SINGLE PIECE FIXATION - Methods for securing a intervertebral cage to one or more levels of the spine with fixation. The fixation, which is typically a staple, is intended to be driven perpendicular to the proximal face of the cage and in-line with the inserter. After the cage is placed and positioned according to surgeon preference, a single piece fixation clip is then deployed and fixed in a manner that produces a zero-profile device.03-29-2012
20120078370SPINAL IMPLANTS - Disclosed are improved spinal implants that are configured to help prevent post-operative migration of the implant. In some embodiments, the implant system includes multi-axial tooth geometry and other geometrical configurations such as but not limited to peripheral curvatures that aid in the prevention of such post-operative migration. Also disclosed are asymmetrical implants having superior and inferior surfaces with different angulations relative to the sagittal midline.03-29-2012
20090076614Intervertebral Prosthetic Disc with Shock Absorption Core - An artificial intervertebral disc with shock absorption includes upper and lower plates disposed about a shock absorbing movable core. The upper and lower plates have an outer surface which engages a vertebrae and an inner bearing surface. The shock absorbing core includes a unitary member of a rigid material having at least one lateral cut between upper and lower surfaces of the core to allow the upper and lower surfaces to move resiliently toward and away from each other. This allows the core to absorb forces applied to it by the vertebrae.03-19-2009
20080262623Composite interbody spinal implant having openings of predetermined size and shape - An interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, a substantially hollow center, and a single vertical aperture. The single vertical aperture extends from the top surface to the bottom surface, has a size and shape predetermined to maximize the surface area of the top surface and the bottom surface available proximate the anterior and posterior portions while maximizing both radiographic visualization and access to the substantially hollow center, and defines a transverse rim. The body may be non-metallic and may form one component of a composite implant; the other component is a metal plate disposed on at least one of the top and bottom surfaces of the body.10-23-2008
20080262622Spinal disc prostheses - A spine disc prosthesis mimics a natural human spine disc through use of a structure that duplicates a natural Annulus Fibrosis of the disc to provide translation, extension, flexion, and axial support in like manner to a natural disc. The present spine disc prosthesis achieves this through the use of a first and second disk connected to one another via a flexible annulus fibrosis structure. The flexible annulus fibrosis structure or core is characterized by a plurality of compressible (pliant) strands that are affixed to and extend between the first and second disks. The strands are preferably, but not necessarily, situated on and extend about an outer perimeter of inside surfaces of the two end disks so as to mimic natural contours of an annulus fibrosis of a natural spinal disc. The strands may be formed by various types of biocompatible fibers, braids, cords, bundles or the like and may have a hollow core or a solid core (e.g. PEEK [polyetheretherketone] cores/core strands may also be used). The strands may be situated on the vertical, crossed or in other configurations. The end disks may be formed as to promote fusion with adjoining vertebrae when implanted. The end plate may also include a keel and/or installation structure to allow for implanting the spine disc prosthesis.10-23-2008
20080262620SPRING MEMBER FOR ARTIFICIAL INTERVERTEBRAL DISC AND METHOD OF INSERTING DISC - A spring member for an artificial intervertebral disc includes a substantially annular body including an axially extended bore therethrough defining a passageway. A seat extends radially inward towards the bore for seating therein a bearing member for adjusting and compensating vertebral disc motion. An engagement member extends radially outwardly from the bore for engaging a housing member and securing the spring member within the housing member. The spring member absorbs compressive loads between the bearing member and the housing member while controlling motion and position of the bearing member.10-23-2008
20090118834Expandable Prosthetic Intervertebral Discs That Are Implantable By Minimally Invasive Surgical Techniques - The described devices are spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.05-07-2009
20090198338MEDICAL IMPLANTS AND METHODS - An apparatus includes a spacer and an actuator. The spacer has a first spacer member configured to engage an endplate of a first vertebra and a second spacer member configured to engage an endplate of a second vertebra. The actuator has a first actuator member and a second actuator member coupled to the first actuator member. Each of the first actuator member and the second actuator member is matingly and movably coupled to the first spacer member and the second spacer member. The actuator is configured to move the spacer between a first configuration and a second configuration. The first spacer member is in contact with the second spacer member when the spacer is in the first configuration. The first spacer member is spaced apart from the second spacer member by a non-zero distance when the spacer is in the second configuration.08-06-2009
20080281426Patient Selectable Joint Arthroplasty Devices and Surgical Tools - A patellar 3-D guidance tool includes a template. The template includes at least one contact surface for engaging a surface of the patella. The at least one contact surface substantially conforms with the surface associated with the patellar. At least one guide aperture directs movement of a surgical instrument, wherein the shape and/or position of the guide aperture is based, at least in part, on three or more anatomic reference points associated with the patellar.11-13-2008
20090105825FUSION METHODS USING AUTOLOGOUS STEM CELLS - A method and apparatus is provided for use in spinal fusion procedures. An exemplary interbody fusion device includes a synthetic non-metallic radiolucent interbody spacer having an opening formed between its top and bottom surfaces. A cancellous allograft plug is configured to be disposed within the opening formed in the spacer. The cancellous allograft plug can be reconstituted with a material that will help to facilitate fusion of the vertebrae.04-23-2009
20090105836Devices and techniques for a posterior lateral disc space approach - This invention relates to devices and instruments for implant insertion through a posterior lateral opening to the disc space. The instruments include an implant inserter, and the devices include a spinal fusion implant engageable by the implant inserter. The implant provides bilateral support of the adjacent vertebrae when inserted into the disc space from a postero-lateral approach.04-23-2009
20090105826Surgical Implants - Disc prostheses, particularly for use in the lumbar region of the spine are provided. The disc prosthesis includes a core comprising one or more filling elements provided within an inner component of fabric. The inner component is provided within an outer component of fabric. By providing a smooth inner contact surface between the inner component and the core filling, movement between the inner and outer components is facilitated in preference to movement between the inner component and core. Core abrasion is thus avoided. The use of an inner component and an outer component also means that the characteristics of each can be optimised to meet different aims.04-23-2009
20090210064INTERVERTEBRAL IMPLANT - An intervertebral implant having a three-dimensional body (08-20-2009
20090210063DISC NUCLEUS REPLACEMENT AND METHOD OF USE - An artificial disc nucleus replacement includes two mating halves which are inserted into the patient from opposite lateral sides of the patient's back, and joined together with screws.08-20-2009
20090210062Orthopaedic Implants and Prostheses - Disclosed herein are spinal implants particularly useful in interbody fusion surgery. One embodiment pertains to a plate configured to establish desired lordosis and/or disc height that may be implanted and secured to a superior and inferior vertebral body. The plate may be interlocked with a spacer component to form a single implant. Also disclosed is an anti-backout mechanism that helps prevent fixators from backing out upon securement of the plate in the spine. Kits comprising different sizes and inclination angles of components are disclosed, which can assist the surgeon in preoperatively assembling an implant to best fit in the surgical site of the patient.08-20-2009
20090248162Microparticle delivery syringe and needle for placing suspensions and removing vehicle fluid - Described are reinforced, load-bearing medical implants and methods for preparing and using them. In one aspect a load-bearing orthopedic implant includes a reinforcing polymeric structure including a continuous piece having an internal interconnected porous network. A hardened, calcium-containing material is formed as a non-sintered load-bearing body encompassing the reinforcing structure and filling the internal porous network of the structure.10-01-2009
20090240335Expandable Devices for Emplacement in Body Parts and Methods Associated Therewith - Disclosed are devices and methods for emplacement of an expandable device in a body part of interest in human and animal subjects. In one embodiment, the expandable device comprises a cage that may be emplaced in the intervertebral disc for use in spine fusion techniques. The device is fashioned so that it may be delivered to the intervertebral disc by percutaneous means, such as via a cannula. Additionally disclosed are systems and kits employing the devices of the invention as well as methods of manufacturing the devices of the invention.09-24-2009
20080319550Interspinous spacer - An implantable spacer for placement between adjacent spinous processes is provided. The spacer includes a body and a wing rotatable connected to the body. The wing includes two U-shaped configurations that together define a substantially H-shaped configuration for retaining the spacer between adjacent spinous processes. An actuator assembly is connected to the body and to the wing with the proximal end of the spacer being connectable to a removable driver that is configured to engage the actuator assembly. While connected to the spacer, the driver is rotatable in one direction to deploy the wing from an undeployed to a deployed configuration and in an opposite direction to undeploy the wing. In the deployed configuration, the spacer acts as a space holder opening up the area of the spinal canal, maintaining foraminal height, reducing stress on the facet joints and relieving pain for the patient.12-25-2008
20090222101Prosthetic Disc for Intervertebral Insertion - A prosthetic disc for insertion between adjacent vertebrae includes a core having upper and lower curved surfaces, upper and lower plates, and peripheral restraining structure on at least one of the upper plate, the lower plate and the core. Each plate has an outer surface which engages a vertebra and an inner curved surface which slides over the curved surface of the core. The peripheral restraining structure serves to hold the core against a curved surface of at least one of the plates during sliding movement of the plates over the core.09-03-2009
20090222100Tool for implanting expandable intervertebral implant - An expandable intervertebral implant and tool for use in implanting same are disclosed. The tool is useful in retaining the implant in a non-expanded state throughout insert of the implant between adjacent vertebral bodies. Among other elements, the tool includes a rod, a sleeve placed over the rod, and a locking knob attached to the rod and the sleeve to fix them with respect to each other. This construct preferably aids in preventing movement of the various components of the implant, including first and second members and first and second wedges. A method of attaching inserting the implant through the use of the tool and attaching the tool to the implant are also disclosed.09-03-2009
20090222098Spinal nucleus replacement with varying modulus - An intervertebral disc augmentation implant comprises an implant body adapted for implantation within an annulus fibrosis the intervertebral disc, adjacent to an at least partially intact nucleus pulposus of the intervertebral disc, and comprising a core area, a peripheral wall area, a top face area, and a bottom face area. The implant body is formed from at least one material and the implant body has a modulus of elasticity gradient that gradually changes from the core area of the implant body to the peripheral wall area of the implant body.09-03-2009
20090222097Nucleus implant and method of installing same - A nucleus implant is disclosed. The nucleus implant can be configured to be installed within an intervertebral disc between an inferior vertebra and a superior vertebra. The nucleus implant can include an expandable core and an expandable chamber that can be disposed at least partially around the expandable core. The expandable chamber can be expanded from a deflated position to an inflated position. Further, a hardness of the expandable core when inflated can greater than or equal to a hardness of the expandable chamber when inflated.09-03-2009
20100137992Physologically Movable Intervertebral Disc Prosthesis for the Lumbar and Cervical Spine - Disclosed is an intervertebral disc prosthesis for the total replacement of a natural intervertebral disc within the lumbar and cervical spine, comprising of articulating sliding partners. The upper sliding partner has means for a firm assembly to an upper vertebral body and the lower sliding partner has means for a firm assembly to a lower vertebral body. At least one sliding surface is between two sliding partners. Two- and three-part functional designs are planned and both having in common, that, as a result of the shape of the articulating surface(s), the laterolateral and dorsoventral motion amplitudes differ. The resulting angles including the rotation around a fictitious vertical axis can be defined to a desired extent.06-03-2010
20090248163SPINAL SURGERY INTERBODY - An inter-vertebral implant wherein at least one of the side walls defining a hole from the exterior of the implant to the fusion promotion cavity and having a posterior portion and an anterior portion, the side wall hole being elongated in a direction between the posterior and anterior ends of the side wall hole. In some embodiments, the side wall hole is tapered toward the posterior portion of the implant and can be tear drop shaped. In some embodiments the cephalad and caudal surfaces may be convex with radii of curvature which can be the same for all implant sizes. The surfaces may include teeth which can extend beyond a central cavity. A nose, tapered in the saggital and transverse planes may be included on the anterior end of the implant. Some embodiments also include a threaded hole (with a depth that can be the same for all implant sizes) and an adjoining slot for engaging an insertion instrument. Each of the portions of the implant can have the same length for all implant sizes.10-01-2009
20120197404INTERVERTEBRAL IMPLANT HAVING EXTENDABLE BONE FIXATION MEMBERS - An intervertebral implant is configured to be fixed in an intervertebral space defined by a first vertebral body and a second vertebral body. The intervertebral implant includes an implant body sized to be inserted into an intervertebral space, and a fixation assembly carried by the implant body. The fixation assembly includes a fixation housing and a plurality of fixation members attached to the fixation housing. The fixation assembly can be iterated from a retracted position to an extended position that causes the fixation members to travel along a channel of the implant body and out the implant body so as to attach the implant to the first and second vertebral bodies.08-02-2012
20120197401INTERBODY SPINAL IMPLANTS WITH MODULAR ADD-ON DEVICES - An implant assembly for a spinal column includes at least an interbody element and an add-on element that is removably attachable to the add-on element to form an implant assembly. At least a portion of the add-on element is positionable in a space between vertebrae along with the interbody element to support the vertebrae.08-02-2012
20090259316Spacer Devices and Systems for the Treatment of Spinal Stenosis and Methods for Using the Same - Spacer devices for treating spinal stenosis are provided herein. In some example embodiments, these devices are configured for attachment on the interspinous ligaments with minimal injury thereto. Also provided are systems for the delivery of the spacer devices, tools for measuring and assessing the interspinous space and methods for using the same.10-15-2009
20090240334VERTEBRAL DEVICE FOR RESTORATION OF VERTEBRAL BODY HEIGHT - An intra-vertebral body height restoring device includes a body for insertion into an intra-vertebral space. The body includes top and bottom surfaces for engaging opposing vertebral surfaces defining the intra-vertebral space. The body includes at least two layers extending along a width of the body and having a fully expanded and fully collapsed height relative thereto. A reversible expansion mechanism selectively and reversely expands and collapse the height of the layers and including the fully expanded and collapsed heights to restore a selected height to the intra-vertebral space.09-24-2009
20090192616ARTIFICIAL SPINAL DISK - An artificial spinal implant for placement between adjacent vertebrae to replace disk material and to stabilize the involved vertebrae is described. The artificial disk may be disassembled for installation and/or removal for repair, replacement or adjustment, and may be assembled from the front of the spine as individual component parts, thereby permitting alignment of the spine during the assembly process, and the stabilization of the involved vertebrae once assembly has been completed. Further, the components may be chosen from a set of similar components having different sizes, thereby enabling the implant to be tailor fit to the requirements of the patient.07-30-2009
20090254185IMPLANT FOR THE TREATMENT OF LUMBAR SPINAL CANAL STENOSIS - Disclosed is an implant for treating lumbar spinal canal stenosis, comprising a spacer that is proved with an elongate interior space into which an insert part can be inserted. A first retaining element is fixed in the spacer in the inserted state. Said first retaining part can be folded apart by inserting the insert part while a second rear retaining element that is molded onto the insert part simultaneously comes to rest on the vertebral processes, thus making it possible to insert the implant unilaterally while reducing the rist of having to undergo possible postoperative interventions.10-08-2009
20100274358SPINE STABILIZATION DEVICE, AND METHOD AND KIT FOR ITS IMPLANTATION - A spine stabilization device is provided, the spine stabilization device including an interbody spacer shaped to be inserted between a vertebral body of an upper vertebra and a vertebral body of a lower vertebra, and including a top surface oriented towards the lower endplate of the vertebral body of the upper vertebra and a bottom surface oriented towards the upper endplate of the vertebral body of the lower vertebra; and a fixation device to be inserted after placement of the interbody spacer, the fixation device including a support portion securing the interbody spacer against escaping from between the vertebral bodies of the upper and lower vertebra into a ventral direction, the support portion shaped to rest against a portion of an anterior surface of the interbody spacer, and further including an anchor, the anchor including an anchoring material portion that is configured to be inserted, in a liquid state, into cancellous bone tissue of at least one of the vertebral body of the upper vertebra and of the vertebral body of the lower vertebra, to thereby infiltrate the cancellous bone tissue, and to harden thereafter so as to fix the support portion to the vertebral body.10-28-2010
20090138090ARTICULATING INTERVERTEBRAL DISC PROSTHESIS - An artificial intervertebral disc for implantation between two adjacent vertebrae includes superior and inferior shells connected in a ball and socket arrangement. The inferior shell preferably incorporating a convex portion that cooperates with a concave portion on the superior shell. A resilient nucleus is provided within an enclosure defined by the opposing inner surfaces of the shells and biases the shells against each other. The ball portion can be provided in either fixed or slidable arrangement. The superior and inferior shells are also provided with cooperating male and female portions whereby the shells positively engage each other, thereby preventing separation, but allowing any desired articulation there-between. The artificial disc of the invention includes various resistance means for restricting and limiting the range of rotational and translational motion between the shells.05-28-2009
20090248164INTERBODY CAGE SYSTEM - An interbody cage system includes an interbody cage having a proximal end, a distal end, and an interior. The interbody cage system also includes an insertion tool. A portion of the insertion tool extends into the proximal end and the interior.10-01-2009
20090132054Intervertebral Disc Prosthesis - The present invention relates to an intervertebral disc prosthesis comprising at least three pieces including an upper plate (05-21-2009
20100152857Asymmetric Disc Distracting Cage - An inter-vertebral cage with a wedge shape eccentrically located on the leading end of the cage. The ectopically shaped leading edge of this embodiment facilitates easier interbody spacer placement with less risk of nerve injury, as well as with likely decreased risk of destruction of the end plate during the distraction process when the interbody cage is impacted.06-17-2010
20090276050SPACE KEEPER WITH ADJUSTABLE AXIAL LENGTH - A space keeper for insertion between two vertebrae which has a variable axial length is provided. The space keeper possesses a sleeve-like first member (11-05-2009
20100152856FULL-METAL DAMPENING INTERVERTEBRAL IMPLANT - A flexible element that may be configured, among various uses, as an intervertebral implant for insertion into an intervertebral disc space between adjacent vertebral bodies or between two bone portions. The flexible element includes one or more struts extending from superior and inferior endplates and bending towards one another for connection with one or more internal beams.06-17-2010
20100185291METHODS AND APPARATUS FOR VERTEBRAL BODY DISTRACTION AND FUSION EMPLOYING FLEXURE MEMBERS - Improved methods and apparatuses for vertebral body distraction and fusion in accordance with various embodiments of the present invention employ flexure members. Flexure members connect a plurality of structural members to end plates on one end and blocks on another end. Upon insertion into the disc space, a drive screw or similar mechanism can be actuated to drive expansion blocks closer together, which causes flexure members to deflect, resulting in expansion of the structural members and distraction of the end plates. The distracted device can then remain in the body and be used for vertebral body fusion.07-22-2010
20100161057Interbody Vertebral Prosthetic Device With Self-Deploying Screws - An intervertebral prosthesis includes: a body including first and second spaced apart major surfaces and at least anterior and posterior sidewalls extending therebetween, the first major surface for engaging an endplate of a first vertebral bone of a spine, and the second major surface for engaging an endplate of an adjacent, second vertebral bone of the spine, and the first and second major surfaces defining a longitudinal axis extending substantially normal to said surfaces; a first aperture extending from within the body, transversely with respect to the longitudinal axis, and opening at the first major surface; a first anchoring element disposed within the first aperture and including a threaded shaft having proximal and distal ends; and a first gear disposed adjacent to and in meshed, threaded communication with the threaded shaft of the first anchoring element such that rotation of the first gear causes rotation of the first anchoring element, wherein a driving rotational force on the first gear causes the first anchoring element to rotate, deploy from the body, and thread into the first vertebral bone in a direction transverse to the longitudinal axis of the body and the spine.06-24-2010
20100161059INTERVERTEBRAL IMPLANT FOR THE HUMAN OR ANIMAL BODY - This intervertebral implant (06-24-2010
20100161058Multiple-State Geometry Artificial Disc With Compliant Insert and Method - A multiple-state geometry artificial disc assembly attached to vertebrae includes a compliant load bearing spacer element having an upper curved portion and a lower curved portion, a first plate coupled on the upper curved portion of the compliant load bearing spacer element and a second plate coupled on the lower curved portion of the compliant load bearing spacer element. The first plate and the second plate preferably are of a flexible material. The first plate and the second plate transitions from a convex configuration to a concave configuration in-situ in a vertebral disc space. The upper curved portion and the lower curved portion of the compliant load bearing spacer element may include a plurality of openings. The compliant load bearing spacer element may further include a middle cylindrical portion dimensioned and configured to match a gap between the first plate and the second plate.06-24-2010
20100262246EXPANDABLE CAGE FOR VERTEBRAL SURGERY INVOLVING LUMBAR INTERSOMATIC FUSION BY A TRANSFORAMINAL POSTERIOR APPROACH - An implant of the intersomatic cage type, for fusion of vertebral bodies by a transforaminal approach, is disclosed that comprises a body with a curved profile that is designed to be implanted between the vertebral plates of two adjacent vertebrae. According to the invention, said body of curved profile comprises a posterior maneuvering part and an anterior attack part, said anterior attack part being composed of a lower tongue and of an upper tongue that are designed to receive between them a spacer element that can slide between a position of introduction, in which it is situated near said posterior maneuvering part, and a spacing position, in which it is situated near the end of said anterior attack part, thus increasing the thickness of the latter by spreading the tongues apart, said spacer element comprising a receiving seat that is open at the top and bottom.10-14-2010
20090048675Spinal Fusion Implants with Selectively Applied Bone Growth Promoting Agent - A spinal fusion device including a selectively applied bone growth promoting agent is disclosed. In particular, a bone growth promoting agent is selectively applied to spinal implants, spinal plugs, spinal wedges and other implantable devices.02-19-2009
20100185292APPARATUS AND METHOD FOR STABILIZING ADJACENT BONE PORTIONS - An apparatus and method for stabilizing first and second adjacent bone portions. The apparatus has a spacer configured to be placed between the first and second bone portions and at least one stabilizer configured to be joined: a) to each of the first bone portion and the spacer; and b) to at least one of the first bone portion and spacer by being translated relative to the at least one of the first bone portion and spacer.07-22-2010
20100262247SPINAL IMPLANT HAVING A POST-OPERATIVE ADJUSTABLE DIMENSION - A spinal implant (10-14-2010
20100262249Spinal system and method including lateral approach - Embodiments of the invention include devices and methods for implanting a vertebral body spacer. A lateral surgical approach is contemplated with some disclosed procedures. Instruments of some embodiments are insertable into a disc space to achieve distraction, to determine a desired disc space height, and to select a corresponding implant.10-14-2010
20100262248INTERVERTEBRAL IMPLANT TO IMMOBILIZE ONE VERTEBRA RELATIVE TO ANOTHER - This implant includes two elongated elements (10-14-2010
20100191338Intervertebral Prosthetic Disc - A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.07-29-2010
20100191336FIXATION DEVICE AND METHOD - An implantable orthopedic stability device is disclosed. The device can have a contracted and an expanded configuration. A method of using the device between adjacent vertebral surfaces for support and/or fixation of either or both of the adjacent vertebrae is also disclosed.07-29-2010
20100191337INTERBODY DEVICE FOR SPINAL APPLICATIONS - An intervertebral spacer includes a leading end, a trailing end comprising an opening having a clearance and a post positioned across the clearance. The post has an external surface configured to accept an extending portion of an insertion tool and to torsionally engage a complementary surface of the insertion tool at a plurality of different angles.07-29-2010
20080215153APPARATUS AND METHOD FOR PERFORMING SPINAL SURGERY - An embodiment of an intervertebral prosthetic device for implantation in a spine includes a rigid fixation member and a compressible member. The fixation member is configured to be placed in a cavity of a first vertebral body and against bone of the first vertebral body. The compressible member is configured to be placed in a cavity in an intervertebral disc and to be secured to the first fixation member. Another embodiment includes two compressible members and one fixation member. In this embodiment, the first and second compressible members are sized to substantially replace the nucleus pulposus of first and a second intervertebral discs, respectively, on either side of a vertebral body. The fixation member is sized to fit within a cavity in the vertebral body between the first and second compressible members.09-04-2008
20100324688INTERVERTEBRAL SPINAL DISC PROSTHESIS - The subject invention provides a modular six-degrees-of-freedom spatial mechanism for spinal disc prosthesis, with three rotational and three translational degrees-of-freedom. The prosthesis anchors to the superior and inferior vertebrae of an FSU and maintains mechanical linkage between those vertebrae for all normal motions and positions of the FSU. The prosthetic disc uses a novel, multi-curvate “ball-and-socket” joint with joint limits on all three rotational axes integrated into the design. A planar joint can further provide two, orthogonal linear degrees of freedom. Resilient spring elements, self-adjusting, in position and orientation, in conjunction with a double-layered, fiber and ring reinforced boot and toroidal belt, and a unique hydraulic damping system using dual segmented-walls can accommodate dynamic and static forces and sudden shocks on the FSU.12-23-2010
20100324687INTERVERTEBRAL IMPLANT WITH A PIVOTING END CAP - Implants sized to be inserted into an intervertebral space between first and second vertebral members. The implants may include a body with opposing first and second ends. An end cap may be connected to the body and include a first side with a contact surface that faces away from the body and is configured to contact against one of the first and second vertebral members when the implant is positioned in the intervertebral space. The end cap may also include a second side that faces towards the body. A connection mechanism may connect the end cap and the body for the end cap to pivot to adjust an angular position of the end cap relative to the body. The body and the end cap may each include locking features that engage together to lock an angular position of the end cap. The locking features may be configured to overlap at each of the angular positions to engage together and maintain the angular position of the end cap relative to the body when the implant is positioned in the intervertebral space.12-23-2010
20100179659CELL-NANOFIBER COMPOSITE AND CELL-NANOFIBER-HYDROGEL COMPOSITE AMALGAM BASED ENGINEERED INTERVERTEBRAL DISC - The instant invention is directed to a tissue engineered intervertebral disc comprising at least one inner layer and an exterior layer, wherein: the exterior layer comprises a nanofibrous polymer support comprising one or more polymer nanofibers; the at least one inner layer comprises a hydrogel composition comprising at least one or more hydrogel materials and/or one or more polymer nanofibers; and a plurality of cells which are dispersed throughout the tissue engineered intervertebral disc. Additionally, the instant invention is directed to methods of making such intervertebral discs and methods of treating intervertebral disc damage.07-15-2010
20100179660Intervertebral implant and handling instrument for this intervertebral implant - In an intervertebral implant having an abutment element for abutment on at least one vertebral body, in order to be able to apply pulling forces to the abutment element without the risk of damage to the abutment element, it is proposed that the abutment element carry at a side edge a pull element which extends along the side wall of the abutment element and is held on the abutment element by pull members extending at the sides of the abutment element in the direction towards the opposite side edge, the pull element being made of a material whose tensile strength is greater than the tensile strength of the material of the abutment element, and that an interspace for receiving a handling instrument engaging the pull element from behind be arranged at least in a section along the pull element between the pull element and the abutment element. A handling instrument for handling such an intervertebral implant is also described.07-15-2010
20120197402INTERVERTEBRAL IMPLANT WITH ROTATING MEMBER - An implant for spacing apart skeletal structures. The implant includes a base, a rotatable member, and a connector. The base extends around at least a portion of the member, and the member is pivotally connected to the base by the connector. The member includes a first pair of opposing sides that have a first height that is smaller than or equal to a height of the base, and a second pair of opposing sides that have a second height larger than the base. The member is movable to a first rotational position with the first pair of opposing sides facing in the same direction as the sides of the base such that the member is shorter than or equal to the base. The member is also movable to a second rotational position with the second pair of opposing sides facing in the same direction as the sides of the base such that the member is taller than the base.08-02-2012
20100185290FLEXIBLE CHAIN IMPLANTS AND INSTRUMENTATION - A flexible chain implant for insertion into an interior volume of a vertebral body. The implant may be implanted in an insertion position for sliding through a cannula and is flexible for packing into the interior volume in an implanted configuration. The implant randomly separates in the implanted configuration. The implant includes a top member and a bottom member, wherein the top and bottom members are coupled to one another at a coupled portion. The top and bottom members preferably each include an inner surface such that the inner surfaces include a plurality of alternating projections and recesses so that the projections are received within the recesses in an insertion position. Alternatively, the implant may include a plurality of substantially non-flexible bodies and a plurality of substantially flexible links interconnecting the bodies. The non-flexible bodies include a plurality of facets and/or abutment surfaces.07-22-2010
20120197405INTERVERTEBRAL IMPLANT - An intervertebral implant and related methods of use are provided for treatment of spaces between two vertebrae. The implant can comprise a first member and a second member that are configured for engagement in a stacked configuration. The first member and second member can be inserted separately so that the intervertebral space can be reached through limited access pathways. The first member and second member can be coupled in situ in the intervertebral space to form an implant of desired height. In this manner, an intervertebral implant having final dimensions that would not fit through a limited access pathway can be implanted through the access pathway by inserting the implant in separate member pieces.08-02-2012
20090149958STRUCTURALLY REINFORCED SPINAL NUCLEUS IMPLANTS - A spinal nucleus implant is provided which includes a braided three-dimensional reinforcement member having a polymeric matrix imbued therein, the implant configured to have a shape consistent with a cavity within an intervertebral disc space. The polymeric matrix may be a fluid absorbing polymer, e.g., a hydrogel or a substantially non-fluid absorbing in-situ curable elastic polymer. A method of making a spinal nucleus implant is provided which includes providing a braided three-dimensional reinforcement member configured and dimensioned to have a shape consistent with a cavity in an intervertebral space and infusing the braided three-dimensional reinforcement member with a liquid polymer capable of forming a polymeric matrix. Also provided is a spinal nucleus implant including a three-dimensional reinforcement member adapted and configured to undergo anisotropic expansion, the implant configured to have a shape consistent with a cavity within an intervertebral disc space. A method of treating a degenerating intervertebral disc includes creating an incision in an annulus; removing at least a portion of a nucleus pulposus; and inserting, through the incision, a spinal nucleus implant according to the present disclosure.06-11-2009
20100204797ANULUS LESION REPAIR - Methods for repairing a damaged or weakened intervertebral disc are disclosed. According to one or more embodiments, a method comprises delivering a support member within an intervertebral disc having an anular defect, anchoring an anchor to a vertebral body adjacent the intervertebral disc, connecting the anchor to the support member, and pulling the support member toward the anchor using the connection.08-12-2010
20100161062Expandable intervertebral spacers - Laterally expanding vertebral spacer devices are provided for repairing damaged vertebral discs. The vertebral spacer devices maintain the height of a distracted vertebral disc space while providing stability to the spine. In one form of the invention, a vertebral spacer device is provided with a first arm movably coupled to a second arm. The first and second arms are laterally expandable from a first width for insertion into the disc space to a second width after insertion into the disc space. The first and second arms also define a cavity therebetween for placement of bone growth material.06-24-2010
20110130839SPACE HOLDER FOR VERTEBRAE OR INTERVERTEBRAL DISCS - The present invention concerns a space holder, especially for vertebrae or intervertebral discs for implantation into human or animal organisms, having a cylinder-like body (06-02-2011
20100217396Open intervertebral spacer - Open chambered spacers, implanting tools and methods are provided. The spacers 08-26-2010
20100217395INTERVERTEBRAL IMPLANT WITH KEEL - An intervertebral implant component of an intervertebral implant includes an outer surface for engaging an adjacent vertebra and an inner surface. A keel extends from the outer surface and is designed to be disposed in a slot provided in the adjacent vertebra. This keel extends in a plane which is non-perpendicular to the outer surface; and preferably there are two of the keels extending from the outer surface which are preferably offset laterally from one another. In another embodiment, an anterior shelf is provided at an anterior end of the outer surface, and this anterior shelf extends vertically away from the inner surface in order to help prevent bone growth from the adjacent vertebra towards the inner surface. Further in accordance with disclosed embodiments, various materials, shapes and forms of construction of the component and/or keel provide various benefits.08-26-2010
20100217398Intervertebral Disc Prosthesis - An intervertebral disc prosthesis has two cover plates and a prosthesis core which is connected to one of the cover plates by connection profiles on one of the cover plates which are undercut in a complementary manner and include at least one pair of profile sections which are symmetrical with respect to the AP (anteroposterior) direction of the prosthesis in its implanted position and are arranged at an angle to one another.08-26-2010
20100217397INTERVERTEBRAL PROSTHESIS - An intervertebral disk prosthesis, having a rigid top plate, a rigid bottom plate, and an elastically deformable intermediate cushion housed between the two inner surfaces of the plates. The cushion, at rest, possesses a wedge-shape possessing at least one front notch open into the larger end of the wedge and one rear notch open into the narrower end. The faces of the notches co-operate by contact over an area of magnitude that varies as a function of the intensity and/or direction of the load to which the prosthesis is subjected. The bottoms of the notches are spaced apart from each other and situated in the narrower half of the prosthesis.08-26-2010
20100228351Transforaminal Prosthetic Spinal Disc Replacement - An intervertebral implant includes a first endplate having a first surface configured to substantially engage with a first vertebral body and a second surface having an extension with a concave contact surface, the concave contact surface being spaced apart from the second surface. The implant further includes a second endplate having a first surface configured to substantially engage with a second vertebral body and a second surface comprising a convex contact surface, and the second endplate having first and second side rails positioned along and above the second surface defining a first and second arcuate slots on opposing sides of the second surface. A plate connecting the first and second endplates is also provided.09-09-2010
20100241233SPACERLESS ARTIFICIAL DISC REPLACEMENTS - Spacerless artificial disc replacements (ADR) are disclosed. One preferred embodiment includes two saddle-shaped components to facilitate more normal spinal flexion, extension, and lateral bending while limit axial rotation, thereby protecting the facet joints and the annulus fibrosus (AF). Either or both of the superior and inferior components are made of a hard material such as chrome cobalt, titanium, or a ceramic including alumina, zirconia, or calcium phosphate. The articulating surfaces of the ADR are also preferably highly polished to reduce friction between the components. Metals, alloys or other materials with shape-memory characteristics may also prove beneficial.09-23-2010
20090076616Systems and Methods for Vertebral Disc Replacement - The present invention provides artificial disc prostheses, methods and instrumentation for implantation and revision thereof. Each prosthesis may comprise superior and inferior end plates and a nucleus positioned between articular surfaces of the end plates. The end plates may have planar bone engagement surfaces with a plurality of self-cutting teeth. The articular surfaces of the end plates may be planar or include a flattened portion. The nucleus includes superior and inferior articular surfaces which may comprise flattened portions such that when the articular surfaces of the nucleus and the end plates are placed in cooperation in a preferred orientation, the flattened and/or planar portions are aligned. Each prosthesis may provide flexion/extension, anterior/posterior translation, lateral bending, and/or axial rotation degrees of freedom. One embodiment comprises a prosthesis with a first joint providing flexion/extension and anterior/posterior translation, and a second joint providing lateral bending and axial rotation.03-19-2009
20090076615Systems and Methods for Vertebral Disc Replacement - The present invention provides artificial disc prostheses, methods and instrumentation for implantation and revision thereof. Each prosthesis may comprise superior and inferior end plates and a nucleus positioned between articular surfaces of the end plates. The end plates may have planar bone engagement surfaces with a plurality of self-cutting teeth. The articular surfaces of the end plates may be planar or include a flattened portion. The nucleus includes superior and inferior articular surfaces which may comprise flattened portions such that when the articular surfaces of the nucleus and the end plates are placed in cooperation in a preferred orientation, the flattened and/or planar portions are aligned. Each prosthesis may provide flexion/extension, anterior/posterior translation, lateral bending, and/or axial rotation degrees of freedom. One embodiment comprises a prosthesis with a first joint providing flexion/extension and anterior/posterior translation, and a second joint providing lateral bending and axial rotation.03-19-2009
20090076612Prosthetic Intervertebral Discs Having Substantially Cylindrical Cores Insertable Along Their Axes, That Are Suitable For Implantation By Minimally Invasive Surgical Techniques - The described devices are prosthetic, spinal disc replacement, implants having cores that are insertable after the end plates have been introduced into the intervertebral space. The discs may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.03-19-2009
20090076610Prosthetic Intervertebral Discs Having Balloon-Based Fillable Cores That are Implantable By Minimally Invasive Surgical Techniques - The described devices are spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.03-19-2009
20090076609Prosthetic Intervertebral Discs with Slotted End Plates That are Implantable By Minimally Invasive, Posterior Approach, Surgical Techniques - The described devices are spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.03-19-2009
20100145463Nested interbody spinal fusion implants - Tapered root threaded hollow perforated interbody spinal fusion implants are disclosed for placement into a disc space in a human spine between adjacent vertebral bodies. The implants have opposite arcuate portions with lockable screws passing therethrough for engaging each of the adjacent vertebral bodies. The implants are adapted for use in side-by-side pairs such that a portion of the circumference of a first implant nests within the circumference of a second implant, so as to have a reduced combined width.06-10-2010
20100145459ZERO-PROFILE INTERBODY SPACER AND COUPLED PLATE ASSEMBLY - An implant for insertion into a disc space between vertebrae, wherein the implant includes a spacer portion, a plate portion coupled to the spacer portion, two bone fixation elements for engaging the vertebrae and a retention mechanism for preventing the bone fixation elements from postoperatively backing-out of the plate portion. The retention mechanism may be in the form of a spring biased snapper element that is biased into communication with the bone fixation elements so that once the bone fixation element advances past the snapper element, the snapper element is biased back to its initial position in which the snapper element interfaces with the bone fixation elements. Alternatively, the retention mechanism may be in the form of a propeller rotatable between a first position in which the bone fixation elements are insertable to a second position where the bone fixation elements are prevented from backing-out.06-10-2010
20130123926INTERVERTEBRAL IMPLANT WITH INTEGRATED FIXATION - A system for spinal surgery includes a prosthesis comprising a plurality of bone anchors which engage an intervertebral construct for fusion or motion preservation. The fusion construct comprises a spacer optionally encircled by a jacket. The motion preservation construct may comprise an articulating disc assembly or an elastomeric disc assembly. Any of the constructs may occupy the intervertebral disc space between adjacent vertebrae after removal of an intervertebral disc. The anchors slidingly engage the construct to securely fix the prosthesis to the vertebrae. The anchors and jacket of the fusion construct provide a continuous load path across opposite sides of the prosthesis so as to resist antagonistic motions of the spine.05-16-2013
20130123927PLASTICALLY DEFORMABLE INTER-OSSEOUS DEVICE - Described here are deformable, monolithic, stabilization devices, or implants, suitable for use within bone and between bones, for instance, to fuse vertebral bodies, to repair herniated discs, or to repair spinal compression fractures. The implants are introduced into a chosen site at a first, smaller height and then plastically deformed to achieve a second, but unique, pre-selected, larger height. Variations of the device provide one or more specific larger heights. The devices are particularly suitable as intervertebral spinal fusion implants for the immobilization of adjacent vertebral bodies. Methods of deploying the implants are also described as are instruments for such deployment.05-16-2013
20110112645Spinal Disc Prosthesis Apparatus and Placement Method - A spinal disc prosthesis and method of placing a spinal disc prosthesis between adjacent vertebrae are provided. The inventive spinal disc prosthesis can comprise one or more solid, compressible prosthesis elements that are formed prior to the method of placing the prosthesis, or one or more solid prosthesis elements that are formed in situ. The inventive method of placing a spinal disc prosthesis between adjacent vertebrae of a patient is based on a posterior approach. The invention also includes a spinal disc prosthesis insertion apparatus and specially constructed surgical instruments for use in carrying out the method.05-12-2011
20090054989INTERVERTEBRAL IMPLANT - Disclosed is an intervertebral implant (02-26-2009
20100234958COMBINATION SPACER INSERT AND SUPPORT FOR PROVIDING INTER-CERVICAL VERTEBRAL SUPPORT - A combination spacer insert and support for incorporating into a space defined between succeeding vertebrae. A first insert body is constructed of a composite material exhibiting at least one modulus of elasticity with a substantially cylindrical shape and is inserted within the space, such as established between a pair of previously non-consecutive vertebrae and corresponding to an absent vertebrae. An additional and exterior supported member engages locations associated with the (formerly) non-consecutive vertebrae and which, in combination with the insert body, provides a limited degree of mobility to the vertebrae.09-16-2010
20090043393Artificial Spinal Disc - An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.02-12-2009
20100145455Lockable spinal implant - A spinal implant which is configured to be deployed between adjacent vertebral bodies. The implant has at least one extendable support element with a retracted configuration to facilitate deployment of the implant and an extended configuration so as to expand the implant and effectively distract the disc space, stabilize the motion segments and eliminate pathologic spine motion. Angular deformities can also be corrected, and natural curvatures restored. Preferably, the implant has a minimal dimension in its unexpanded state that is smaller than the dimensions of the neuroforamen through which it typically passes to be deployed within the intervertebral space. The implant is provided with a locking system preferably having a plurality of locking elements to lock the implant in an extended configuration.06-10-2010
20100211177DEVICES AND METHODS FOR INTER-VERTEBRAL ORTHOPEDIC DEVICE PLACEMENT - Disclosed are methods and devices for implanting an orthopedic device between skeletal segments, such as vertebrae, using limited surgical dissection. The implanted devices are used to adjust and maintain the spatial relationships of adjacent bones. The implanted device can be, for example, an artificial disc, a fusion cage or any other appropriate device for implantation between skeletal segments.08-19-2010
20130218276INTERVERTEBRAL IMPLANT WITH IMPROVED FASTENING SYSTEM FOR THE FIXING PLATE - An Intervertebral implant (08-22-2013
20130218277INTERBODY FUSION DEVICE - Devices for fixing interbody fusion devices to bone by helically or corkscrew-shaped elements are provided. Methods for surgically implanting an interbody fusion device using helically-shaped fixation wire are provided.08-22-2013
20130218278DEVICE AND METHOD FOR PERFORMING SPINAL INTERBODY FUSION - A system, device and method for performing a spinal interbody fusion is disclosed. The spinal fusion device may include a container that is placed in a prepared intervertebral cavity and then filled with a plurality of individual pieces or beads of PEEK or other biocompatible non-biologic material to provide mechanical support between the adjacent vertebra, and to distract the adjacent vertebrae and promote fusion.08-22-2013
20130218279PUSH-IN INTERBODY SPINAL FUSION IMPLANTS FOR USE WITH SELF-LOCKING SCREWS - An apparatus including an interbody spinal fusion implant having a leading end, a trailing end, and a length therebetween, and opposed upper and lower portions adapted to contact each of the adjacent vertebral bodies. Each of the upper and lower portions having at least one opening adapted to communicate with one each of the adjacent vertebral bodies and to communicate with one another to permit for the growth of bone from vertebral body to adjacent vertebral body through the implant. Each of the upper and lower portions has at least one screw hole passing therethrough proximate the trailing end. The apparatus further includes bone screws adapted for placement through the screw holes of the upper and lower portions and into each of the adjacent vertebral bodies adjacent the disc space to be fused and into which the implant is adapted to be positioned. At least one lock may be used to prevent the bone screws from backing out of the vertebral bodies and implant.08-22-2013
20100100186INSTRUMENTATION AND METHODS FOR USE IN IMPLANTING A CERVICAL DISC REPLACEMENT DEVICE - Instrumentation for implanting an intervertebral disc replacement device includes a retaining device comprising a threaded attachment member for threaded engagement with the at least one mounting screw hole in the flange of the intervertebral disc replacement device, and a head flange extending from the threaded attachment member, wherein a portion of the head flange is in part abuttingly received against a side of the flange of the intervertebral disc replacement device and another portion of the head flange is partially received over a portion of the bone screw to prevent the bone screw from backing out of the at least one bone screw hole when the retaining device is fully engaged with the intervertebral disc replacement device. The invention also comprises a method of preventing a bone screw from backing out of a bone screw hole in an intervertebral disc replacement device, comprising the steps of inserting a retaining device into a mounting hole in the intervertebral disc replacement device and tightening the retaining device in the mounting hole such that a portion of a head flange of the retaining device becomes flatter against a portion of the intervertebral disc replacement device and another portion of the head flange of the retaining device abuts against a portion of the bone screw.04-22-2010
20100324690Intervertebral Implant Component With Three Points of Contact - A method of implanting an intervertebral implant or component thereof, in which each component is selected to have an inner surface and an outer surface which engages an adjacent vertebra and presents only three distinct points of contact with a cortical rim of the vertebra. The outer surface is selected to have a footprint which is sized to be within that of the cortical rim. In disclosed embodiments, the footprint can be convexo-concave shaped or kidney shaped. The intervertebral implant can be provided with upper and lower (or first and second) components which engage adjacent first and second vertebrae and which move relative to one another. The implant has both the first and second outer surfaces sized to present a respective footprint sufficient for two lateral-anterior and one posterior points of contact with an adjacent cortical rim of the respective first and second vertebra.12-23-2010
20110029083Flexible Spinal Implant - A flexible spinal implant for insertion into an intervertebral disc space for intervertebral stabilization is provided comprising a flexible implant section which enables bending of the implant body to facilitate insertion of the flexible spinal implant into the disc space via a spinal surgical procedure. The flexible spinal implant comprises a leading end, a trailing end and a flexible mid section connecting the leading end and the trailing end, wherein the implant is deformable at or about the flexible mid section to thereby permit a substantially straight entry of the implant into the disc space, and delivered to the selected disc space at a desired insertion angle of approach via a spinal surgical procedure. The implant can have a leading end comprising a curved or bullet shaped configuration, and the flexible mid section may be comprised of a flexible material.02-03-2011
20120143336DYNAMIC INTERBODY CAGE ANCHOR SYSTEM - A system and method of securing an intervertebral fusion cage within the intervertebral space between adjacent vertebra in which one or more slots are provided in an anterior surface of the cage each extending from an oversized aperture. A retention plate having a post and enlarged head is advanced into each slot via the oversized aperture and captured therein. The post is advanced to the terminal end of the plate and secured to vertebral body at its distal end by a bone screw. A locking clip is slideably positioned on the retention plate to prevent withdrawal of the bone screw. The slots preferably extend to margins of the anterior surface of the cage in, for example, the pattern of an “X” or an “H”. Sliding of the posts in the slots prevents the system from carrying the vertebral load (load shielding) and permits reduction in the intervertebral space to promote bone growth and fusion by graft material retained in the spacer.06-07-2012
20120143341DEVICES AND METHODS FOR VISUAL DIFFERENTIATION OF INTERVERTEBRAL SPACES - A method of implanting an intervertebral implant with differentiation of tissue includes: providing electromagnetic radiation into an intervertebral space; visualizing a first color of a first tissue portion located at the intervertebral space, the first color being in response to the provided electromagnetic radiation; visualizing a second color of a second tissue portion located at the intervertebral space, the second color being differentiated from the first color in response to the provided electromagnetic radiation, wherein the first tissue portion and second tissue portion are both substantially similar under normal ambient light; visualizing damage to an intervertebral disc between adjacent vertebras from the first color and the second color; and inserting an intervertebral implant into the intervertebral space.06-07-2012
20120143340MINIMALLY INVASIVE LATERAL INTERVERTEBRAL FIXATION SYSTEM, DEVICE AND METHOD - An intervertebral fixation device and system are disclosed, including a weight-bearing shell, first anchor, second anchor, and key. The shell includes a first and second opposing sidewalls, a keyway that extends between and through the first and second sidewalls, and a first axis of rotation and a second axis of rotation that extend between the first and second sidewalls. The first anchor is rotatably coupled to the shell about a first axis of rotation and is disposed in a first orientation. The second anchor is rotatably coupled to the shell about a second axis of rotation and is disposed in a second orientation. The second orientation is divergent from the first orientation. The key is configured to be disposed in the keyway to support the first anchor in a third orientation and the second anchor in a fourth orientation. The third orientation is divergent from the fourth orientation.06-07-2012
20100036497TOTAL DISC REPLACEMENT DEVICE - An intervertebral implant for implantation between an upper vertebra and a lower vertebra having a central axis. The implant may have a first member with a top surface for contacting at least a portion of the upper vertebra and a bottom surface as well as a second member with a top surface and a bottom surface for contacting at least a portion of the lower vertebra. An elastic spacer may be disposed between the first member and the second member. The bottom surface of the first member and the top surface of the second member may have a first constraint means and the other of the bottom surface of the first member and the top surface of the second member may be provided with a second constraint means, to limit the amount of lateral movement between the first and second members. Additionally, the constraint means may be sized and configured such that a gap with a width greater than zero is provided at least transversely to the central axis between the first and second constraint means in an unloaded state.02-11-2010
20120245689INTERBODY DEVICE INSERTION SYSTEMS AND METHODS - Provided is a system for implanting an interbody device into a disc space located between a first and second vertebra includes a guide frame including a guide member having an opening. The system further includes an implant trial including an elongated body and a base plate coupled to the elongated body. The elongated body of the implant trial is releasably coupled to the guide member of the guide frame during use such that the opening guides longitudinal movement of the implant trial relative to the guide frame. The system still further includes a dilator operatively coupled to the elongated body during use for distracting the disc space. The system still further includes an insertion instrument including an elongated body and an insertion member coupled to the elongated body. The elongated body of the insertion instrument is releasably coupled to the guide member of the guide frame during use such that the opening guides longitudinal movement of the insertion instrument relative to the guide frame. The insertion member is releasably coupled to at least a portion of the interbody device during use.09-27-2012
20090222099Self Centering Nucleus Implant - An intervertebral disc augmentation implant for implantation between a pair of vertebral bodies comprises an elastically deformable outer casing having at least one thickness dimension and a core member having isotropic material properties. The core member is entirely encased within the outer casing and has a height dimension along an axis defined by the pair of vertebral bodies. The modulus of elasticity of the core member is greater than a modulus of elasticity of the outer casing, and the height dimension of the core member is greater than the at least one thickness dimension of the outer casing.09-03-2009
20090182432Artificial disc implant - An artificial disc implant includes an upper shell, a lower shell, and a spacer therebetween. The spacer preferably has properties similar to that of a natural spinal disc, while the upper and lower shells form a rigid interface between the implant and the adjacent vertebral bodies. The upper and lower shells can be configured to prevent expulsion of the spacer from the disc space. The implant upper and lower shells may further be configured into partially cylindrical shapes for ease of insertion through an insertion tube as presently known for interbody fusion devices. The devices may further be configured for insertion through a double-barreled insertion tube. Methods and instruments for inserting an artificial disc implant are also provided.07-16-2009
20090182430DYNAMIC INTERBODY - An intervertebral implant includes a body having an upper surface, a lower surface and a transverse fastener hole. The body includes a dynamic fixation mechanism for seating a fastener in the fastener hole and translating the fastener relative to the implant to accommodate subsidence of the implant. In one embodiment, an implant includes a transverse slot with an elongated seat for translating a seated fastener relative to the implant. In another embodiment, an implant includes a displaceable sliding member for translating a fastener relative to the implant.07-16-2009
20080312743Nucleus Prostheses - An nucleus prosthesis is disclosed having a plurality of linked segments configured to form, in a closed position, a disc shape. A method includes inserting a plurality of linked segments into an annulus fibrosus and closing the prosthesis so that a first segment inserted into the annulus fibrosus and a last segment inserted into the annulus fibrosus are substantially abutted. Another method includes inserting a plurality of linked segments into an intervertebral disc space and closing the prosthesis so that a first segment inserted into the intervertebral disc space and a last segment inserted into the intervertebral disc space are substantially abutted.12-18-2008
20090149960SYSTEMS AND METHODS FOR VERTEBRAL DISC REPLACEMENT - Methods and instrumentation for implantation of an intervertebral disc prosthesis are provided. A guide tool with sagittal and coronal reference features guides placement of guide pins relative to a sagittal plane and a coronal plane of the vertebrae. A retainer lockable to the guide pins has a ratcheting mechanism providing distraction or compression. A rasp, planer or other tools may be aligned to the retainer and inserted into the intervertebral space to prepare the vertebral endplates. An interoperatively adjustable trial is alignable to the retainer and measures an angularity of the intervertebral space. A prosthesis with keying features may be mounted to a prosthesis inserter with complementary features, held by pivotable arms and compressed between prongs. The inserter may be aligned to the retainer and advanced to implant the prosthesis in the intervertebral space. A prosthesis remover may grip one prosthetic end plate and extract the entire prosthesis.06-11-2009
20090112325FOOTPLATE MEMBER AND A METHOD FOR USE IN A VERTEBRAL BODY REPLACEMENT DEVICE - The footplate member includes an end surface, a sidewall that is attached to the end surface, and an orientation mechanism that is designed to align the footplate member in a certain position relative to at least one of the two end members of the vertebral body replacement device. The orientation mechanism includes a plurality of tabs located on an end wall of each end member and corresponding slots located along the edge of the sidewall, with the tabs and slots being sized and positioned to mate. The footplate member also includes a locking mechanism designed to couple the footplate member to an end member prior to the implantation of the vertebral body replacement device within a space within a spinal column. A method for assembling a vertebral body replacement device and a method for using a footplate member in a vertebral body replacement device is also disclosed.04-30-2009
20090112324VERTEBRAL BODY REPLACEMENT DEVICE AND METHOD FOR USE TO MAINTAIN A SPACE BETWEEN TWO VERTEBRAL BODIES WITHIN A SPINE - The vertebral body replacement device includes a body member and a central rod member that has two threaded portions and is configured to be operatively associated with the body member. The device also includes a first end member and a second end member with the end members being configured to threadingly engage the threaded portions of the central rod member. The body member and the two end members are further constructed to inhibit rotational movement of the two end members when the device is positioned within a space within a spine as the two end members will engage the adjacent respective vertebral bodies following rotational actuation of the central rod member causing the end members to move in an axial direction relative to the body member, thereby allowing the two end members to apply a force to the two vertebral bodies. A surgical method using the device is also disclosed.04-30-2009
20120143337FUSION IMPLANT FOR FACET JOINTS - The invention involves a fusion implant for a facet joint, comprising a bearing module (06-07-2012
20090112326IN SITU ADJUSTABLE DYNAMIC INTERVERTEBRAL IMPLANT - A system for forming a spinal prosthesis in situ within an intervertebral space located between first and second adjacent vertebrae includes at least one mold having at least one internal compartment adapted to receive at least one flowable biomaterial. The system also includes a retaining member adapted to secure the mold between the first and second vertebrae, the retaining member including first and second portions adapted to be engaged with first and second surfaces of the first and second vertebrae, respectively. The retaining member also includes an intermediate body operatively coupling the first portion to the second portion, the intermediate body adapted to be positioned in or adjacent to the intervertebral space. A biomaterial delivery apparatus is in fluid communication with the mold at a pressure sufficient for the mold to engage with the retaining member. The spinal prosthesis selectively position the first vertebrae relative to the second vertebrae.04-30-2009
20090105827Dampener system for a posterior stabilization system with a fixed length elongated member - Dynamic posterior stabilization systems are described. A dynamic posterior stabilization system may include bone fasteners and a dampener system. The dampener system may include a fixed length elongated member. The dampener system may also include one or more dampener sets. The dampener sets may provide resistance to movement of vertebrae coupled to the dynamic posterior stabilization system. In some embodiments, the elongated member has at least two portions having different diameters. The different portions interact with other portions of the dampener system to allow for compression of a dampener set. In some embodiments, the dampener system includes a sleeve coupled to the elongated member. In some embodiments, the dampener system includes a pair of washers coupled to the elongated member. The sleeve or the pair of washers allow the dampener system to be secured to a bone fastener.04-23-2009
20090105834Dynamic Spacer Device and Method for Spanning a Space Formed upon Removal of an Intervertebral Disc - A compliant intervertebral spacer according to the present invention replaces a damage intervertebral disc and functions to maintain disc height and prevent subsidence with a large surface area while substantially reducing patient recovery time. The compliant intervertebral spacer for spanning a space formed by upon removal of an intervertebral disc includes two end plates sized and shaped to fit within an intervertebral space and a compliant connector interconnecting the inner surfaces of the two end plates in a manner which limits motion between the plates to less than a total of 5 degrees of motion in any direction. The intervertebral spacer is configured to permanently maintain the disc space between the two adjacent discs without the use of bridging bone.04-23-2009
20090105833Method and Spacer Device for Spanning a Space Formed upon Removal of an Intervertebral Disc - An intervertebral spacer is designed particularly for patients who are not candidates for total disc replacement. The spacer maintains disc height and prevents subsidence with a large vertebral body contacting surface area while substantially reducing recovery time by eliminating the need for bridging bone. The intervertebral spacer or fusion spacer includes a rigid spacer body sized and shaped to fit within an intervertebral space between two vertebral bodies. In one embodiment, the spacer body has two opposed metallic vertebral contacting surfaces, at least one fin extending from each of the vertebral contacting surfaces and configured to be positioned within slots cut into the two vertebral bodies. Holes, if present, cover less than 40 percent of the entire vertebral body contacting surfaces to provide increased bone ongrowth surfaces and to prevent subsidence.04-23-2009
20090105832Intersomatic cage, intervertebral prosthesis, anchoring device and implantation instruments - An intersomatic cage, an intervertebral prosthesis, an anchoring device and an instrument for implantation of the cage or the prosthesis and the anchoring device are provided. An intersomatic cage or an intervertebral prosthesis fit closely to the anchoring device, which includes a body of elongated shape on a longitudinal axis, of curved shape describing, along the longitudinal axis, an arc whose dimensions and radius of curvature are designed in such a manner that the anchoring device may be implanted in the vertebral plate of a vertebra by presenting its longitudinal axis substantially along the plane of the intervertebral space, where the anchoring device is inserted, by means of the instrument, through a slot located in at least one peripheral wall of the cage or on at least one plate of the intervertebral disc prosthesis to penetrate into at least one vertebral plate.04-23-2009
20090105829Dampener system for a posterior stabilization system with a variable length elongated member - Dynamic posterior stabilization systems are described. A dynamic posterior stabilization system may include bone fasteners and a dampener system. The dampener system may include a first elongated member and a second elongated member that couple together to form a variable length elongated member. The dampener system may also include one or more dampener sets. The dampener sets may provide resistance to movement of vertebrae coupled to the dynamic posterior stabilization system.04-23-2009
20090105830INTERBODY FUSION DEVICE, INTEGRAL RETENTION DEVICE, AND ASSOCIATED METHODS - A method and apparatus is provided for use in spinal fusion procedures. A one or two piece interbody fusion device has a fusion bearing component designed to bear the axial loading from the end plates of adjacent vertebrae. An optional retention piece prevents migration of the load bearing device. One or more fasteners secure the retention device to the vertebrae above and below the load bearing device. The fasteners cause the end plates of the vertebrae to compress the end plates to the load bearing device to facilitate proper fusion. An anti-backout mechanism prevents the fasteners backing out.04-23-2009
20090105831LOCKING MECHANISMS AND ASSOCIATED METHODS - A method and apparatus is provided for use with a surgical implant to secure fasteners, such as bone screws or pins. An anti-backout mechanism is used to preventing migration of the fasteners after the implant is installed. In one example, an anti-backout mechanism includes a locking plate having a locked position and an unlocked position. The locking plate has one or more protrusions that are configured to prevent migration the fasteners when the locking plate is in the locked position.04-23-2009
20090105828Posterior stabilization system with isolated, dual dampener systems - Dynamic posterior stabilization systems and methods of stabilizing vertebrae are described. A dynamic posterior stabilization system may include bone fasteners and a dampener system. The bone fasteners may be secured to the vertebrae, and the dampener system may be attached to the bone fasteners. The dampener system may include a first dampener set and a second dampener set positioned on an elongated member. The first dampener set may be compressed and provides resistance to movement of the first bone fastener towards the second bone fastener. The second dampener set may be compressed and provide resistance to movement of the first bone fastener away from the second bone fastener.04-23-2009
20080228275INTERVERTEBRAL IMPLANT COMPONENT WITH THREE POINTS OF CONTACT - An intervertebral implant is made up of components which each have an inner surface and an outer surface which engages an adjacent vertebra and presents only three distinct points of contact with a cortical rim of the vertebra. Preferably, the outer surface has a footprint which is sized to be within that of the cortical rim. In disclosed embodiments, the footprint can be convexo-concave shaped, D shaped, or kidney shaped. The intervertebral implant can be provided with upper and lower (or first and second) components which engage adjacent first and second vertebrae and which move relative to one another. The implant has both the first and second outer surfaces sized to present a respective footprint sufficient for two lateral-anterior and one posterior points of contact with an adjacent cortical rim of the respective first and second vertebra.09-18-2008
20130131808Stabilizing Vertebrae with Expandable Spacers - A spinal distractor and stabilizer has resilient, conformable bone contacting sections which are separated by an expandable chamber that extends from one of the sections, and which forms a ratchet with the section, ensuring that once expanded by being filled with a substance, cannot contract absent intervention by a medical practitioner. The stabilizer may be filled with a material which solidifies, after which some or all of the device may biodegrade. The device may also be provided in separable portions to facilitate implantation. The conformable sections distribute the distraction and stabilizing force evenly over the bone surface, reducing the incidence of disruption to the integrity of the bone.05-23-2013
20130131809LATERAL CAGE STABILIZATION - A kit for stabilizing an intervertebral disc space, wherein the kit includes a cage, a suture and a plurality of suture anchors. The suture anchors are pressed into the anterior faces of the vertebral bodies holding the cage, while the ends of the suture are formed into a loose, preformed Giant Knot to allow their tightening to be accomplished through a minimally invasive portal.05-23-2013
20090062916Method and apparatus for an osteotomy fixation or arthrodesis cage - A method and apparatus for an osteotomy fixation or arthrodesis cage allows the adjustment of the relative position of two bone segments while supporting the joining of those bone segments into one structure through the implant and methods described herein. The implant's embodiments fixate to the adjacent bones while inter-positioning its body between the bone segments. This inter-positioning allows anatomical adjustments in the distance between and angle of the bone segments. The adjustment is further enhanced by the use of shape memory materials that when activated through the application of heat energy, transition from a second shape to a first shape while changing the distance between the bones or their relative angle. This method and apparatus can be used on any adjacent bone or bone segments including but not limited to the vertebrae of the spine or long bone such as the tibia or metatarsal.03-05-2009
20100305707SPACER FOR INSERTION BETWEEN TWO VERTEBRAE - A spacer for insertion between two vertebrae includes a variable axial length and comprises a first member having a hollow interior and a tubular wall and a second member having a hollow interior and a tubular wall the second member being slidable within the first member in an axial direction for adjusting an overall length. At least the first member or the second member comprises an access opening in its wall, the opening having a size which is adapted for inserting bone grafts through the opening into the interior. The spacer further comprises a length adjustment structure being engageable with an expansion tool for telescoping the second member relative to the first member and a locking structure for fixing the axial length. The access opening, the length adjustment structure and the locking structure are arranged so as to be accessible from the same side of the spacer. The spacer allows in situ filling of bone grafts into its interior and an improved handling.12-02-2010
20100305704INTERVERTEBRAL IMPLANT WITH FIXATION GEOMETRY - An intervertebral spacer implant (12-02-2010
20130190879METHODS FOR FACET JOINT TREATMENT - A method of treating a facet joint of a patient. The facet joint includes a superior facet having superior articular face and an inferior facet having an inferior articular face. A distal end of an implant delivery cannula is extended between the superior and inferior articular faces. The implant delivery cannula has a channel extending therethrough. An implant is moved through the channel until the implant is between the superior and inferior articular faces while at least a portion of the implant is within the channel. The implant includes a first surface and a second surface. The implant delivery cannula is moved away from the superior and inferior articular faces so that the first surface is adjacent the superior articular face and the second surface is adjacent the inferior articular face.07-25-2013
20130190877IMPLANT APPARATUS AND METHOD INCLUDING TEE AND SCREW MECHANISM FOR SPINAL FUSION - An implant apparatus and a method for spinal fusion from oblique, lateral, ALIF, PLIF, and TLIF approach. The apparatus can include an expandable implant cage and an inserter. The cage can be inserted between endplates of upper and lower vertebra using lateral, ALIF, PLIF, and/or TLIF approaches. The cage generally includes a male and female screw configuration and a cage expansion mechanism. The inserter inserts the cage in a spinal disc space and tightens the male and female screw arrangement. Once the cage is inserted to the desired position, the male portion of the screw can be tightened until final deployment of cage has been achieved. Tightening of male and female screw arrangement operates the cage expansion mechanism to expand the cage size. The cage can be inserted through a smaller surgical opening and then expanded to a full size assembly between the vertebrae.07-25-2013
20090036990Method and Apparatus for the Treatment of the Intervertebral Disc Annulus - The present invention provides methods and devices for treating the annulus of an intervertebral disc. The methods and devices can employ an expandable treatment device which is deployed at least partially in the subannular space. Fixation devices and methods are also disclosed, which help to secure the treatment device in place.02-05-2009
20090069897Spinal Interbody Device - A spinal interbody or intravertebral device is provided for fusion and non-fusion spinal applications. The spinal interbody device allows for limited motion between adjacent vertebrae to help preserve normal motion between adjacent vertebrae (superior/inferior vertebrae) relative to the implanted spinal interbody device and limited rotational motion of the spinal interbody device, once implanted. Limitation of motion is achieved through one or more protrusions incorporated into the spinal interbody device. The protrusions preferably, but not necessarily, extend radially from a hub or ball-shaped body of the interbody device. In one form, a single protrusion extends radially about the hub of the interbody device to form a continuous band, ring or base about the hub. In this form, portions of the band may extend radially further from the hub than other portions of the band. Preferably, but not necessarily, in this form the band extends radially a greater distance from the hub in the posterior and anterior directions. In another form, a first protrusion extends radially from one side of the hub while a second protrusion extends radially from another side of the hub. Anchoring means may also be provided for attachment to upper and lower vertebrae.03-12-2009
20090069896Prosthetic intervertebral discs with particulate-containing cores that are implantable by minimally invasive surgical techniques - The described devices are spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.03-12-2009
20090069895Prosthetic Intervertebral Discs Having Folding End Plates That Are Implantable By Minimally Invasive Surgical Techniques - The described devices are spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.03-12-2009
20090069894Artificial Spinal Disc - The present invention relates to methods and devices for the treatment of disc disease and spinal deformities with an artificial disc replacement.03-12-2009
20120123547INTERVERTEBRAL DISC STRAIN-RELIEF SUPPORT - The invention relates to an intervertebral disk strain-relief support as an implant between spinous processes of adjacent vertebral bodies, comprising a carrier element having an opening and having first retaining wings, and a central element that has second retaining wings and that can be inserted into the opening of the carrier element. In the implanted state, the retaining wings lie outside on the spinous processes of adjacent vertebral bodies, and the spinous processes can be supported on opposite pressure surfaces on the carrier element and/or on the central element. According to the invention, at least one exposed spring slot, which is oriented transversely to the sagittal direction of extension of the spinal column and which extends over the area between two opposite pressure surfaces, is arranged in at least one of the elements in such a way that a resilient bridge is formed between the spring slot and one of the pressure surfaces of the implant, wherein the resilient bridge is resilient when the spinous processes are loaded.05-17-2012
20090036989Method and Apparatus for the Treatment of the Intervertebral Disc Annulus - The present invention provides methods and devices for treating the annulus of an intervertebral disc. The methods and devices can employ an expandable treatment device which is deployed at least partially in the subannular space. Fixation devices and methods are also disclosed, which help to secure the treatment device in place.02-05-2009
20090036988METHOD OF USING AN ANTI-GROWTH MATRIX AS A BARRIER FOR CELL ATTACHMENT AND OSTEO-INDUCTIVE FACTORS - The present invention generally relates to a method of using a matrix as a barrier for unwanted cell attachment and bone formation in unwanted areas of the human body during implant procedures. More specifically, a growth-inhibiting matrix may be used to prevent migration of osteo-inductive agents or bone tissue from an intervertebral disc space through the outer bands of annulus fibrosis that abuts the spinal tissue, canal, and other surrounding areas.02-05-2009
20090036987ARTIFICIAL INTERVERTEBRAL DISC - An artificial intervertebral disc and method of attaching the disc to vertebral bodies includes a plurality of separate structural members arranged in a stacked configuration, wherein each structural member comprises a female cavity having a unique size compared with the female cavities of the other structural members, wherein a top and middle structural member comprise male bodies defined by outer edges of the respective female cavities of the top and middle structural members, wherein the male body of the top structural member is dimensioned and configured to sit in the female body of the middle structural member, wherein the male body of the middle structural member is dimensioned and configured to sit in the female body of a bottom structural member, and wherein each of the top and bottom structural member comprise at least one projecting member outwardly extending therefrom.02-05-2009
20100312347Polyaryletherketone artificial intervertebral disc - An intervertebral prosthesis for insertion between adjacent vertebrae, in one embodiment, includes upper and lower prosthesis plates and a movable core. The prosthesis plates and optionally the core are formed of polyaryletherketone (PAEK) for improved imaging properties. A metallic insert is provided on each of the PAEK prosthesis plates providing a bone ongrowth surface.12-09-2010
20130138214SUPPORT DEVICE AND METHOD OF USE - Devices and methods for orthopedic support are disclosed. The device can have a first rigid section hingedly attached to a second rigid section. The device can be curved or rotated around obstructions along an access path to a target site. The device can be delivered to an intervertebral location in a patient.05-30-2013
20130138215Intervertebral Implant - An intervertebral implant having an upper and a lower closing plate designed to engage the vertebral end plates. The implant has a deformable body between the closing plates. Between the deformable body and closing plates are cover plates. A plurality of fiber windings run between the cover plates to hold together the cover plates and the deformable body.05-30-2013
20130138216Systems and Methods for Spinal Fusion - A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites.05-30-2013
20130138217Intervertebral Implant with Blades for Connecting to Adjacent Vertebral Bodies - An intervertebral implant for insertion into an intervertebral disc space between adjacent vertebral bodies or between two bone portions. The implant includes a spacer portion, a plate portion operatively coupled to the spacer portion and one or more blades for securing the implant to the adjacent vertebral bodies. The blades preferably include superior and inferior cylindrical pins for engaging the adjacent vertebral bodies. The implant may be configured to be inserted via a direct lateral trans-psoas approach. Alternatively, the implant may be configured for insertion via an anterior approach.05-30-2013
20100312346LOW PROFILE INTERVERTEBRAL IMPLANT - The present invention is directed to a low profile intervertebral implant (12-09-2010
20100312345INTERVERTEBRAL FUSION IMPLANT - The present invention provides an intervertebral implant for implantation in a treated area of an intervertebral space between vertebral bodies of a spine. The implant includes a spacer portion having an inferior and superior surface, wherein the inferior and superior surfaces each have a contact area capable of engaging with anatomy in the treated area, and the inferior and superior surfaces define a through-hole extending through the spacer body. The present invention further provides screw holes extending from a side portion to the inferior and superior surfaces of the spacer portion and a plate portion coupled to the spacer portion through a coupling means, wherein the plate portion contains screws holes for receiving screws. A screw back out prevention mechanism adapted on the plate portion and prevents the back out of screws from the screw holes.12-09-2010
20130144387SPINAL IMPLANT DEVICES AND METHODS - Systems, devices and methods relating to a spinal implant for placement in a disc space of a spine are described. A spinal implant (06-06-2013
20130144388Disc Space Sizing Devices And Methods Of Using The Same - A spacing device is provided for adjusting the spacing between adjacent vertebral bodies. The spacing device has a distal end with at least one distraction member adapted for insertion into an intervertebral disc space and movable between a low profile first configuration and a higher profile second configuration. Also provided is an actuator for moving the distraction member between the first configuration (for delivery of the distal end of the spacing device to a target disc space) and the second configuration (for manipulation of the space between adjacent vertebral bodies).06-06-2013
20130144389JOINT SPACER - To change a spatial relationship between two or more bones in a patient's body, a wedge member is moved into a joint between the bones. The wedge member may have a cam-shaped configuration and be rotated through less than a revolution to apply force against the bones. The wedge member may have a porous construction which enables bone to grow through the wedge member and immobilize the joint. The wedge member may be coated with and/or contain bone growth promoting material. The wedge member may be connected to only one of the bones or may be connected to two adjacent bones. If the wedge member is connected to only one bone, the joint may be capable of being flexed after the wedge member is inserted into the joint.06-06-2013
20130144390Systems and Methods for Spinal Fusion - A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites.06-06-2013
20110029086LUMBAR JACK IMPLANT - A spinal implant has a first bone-engaging member, a second bone-engaging member, and a linkage coupling the first bone-engaging to the second bone-engaging member. The implant includes means for receiving a tensile force to extend the implant.02-03-2011
20110004309Method and arrangement at implants preferably for a human intervertebral and such implant - In an arrangement for production of implant consisting of biocompatible material and intended for a vertebral disk, preferably intervertebral disk in the human body, the condition (state) of the disk is established by aids of condition establishing means and parameters. A first information created by aid of the means and parameters is arranged to control computer equipment for production of a simulation model of the disk in question with surrounding vertebras. A second information created by the computer equipment in dependency of the simulation incorporates or consists of information about the outer volume and design of the implant put in relation to the present alteration of or in the disk. The second information is arranged to initiate or contribute to the control of one or more equipments for production of the implant. In this manner, it is possible to arrange a technical arrangement and method for an individually adapted implant.01-06-2011
20110004311SHAPED IMPLANTS FOR TISSUE REPAIR - Shaped constructs for repair of a defect in a body part or tissue of a subject are discussed herein. More specifically, implants suitable for delivery to a subject, such as a subject having a defect in a body part or body tissue, are discussed. Even more specifically, implants for intervertebral disc repair comprising corticocancellous bone, which can extend into the nucleus pulposus of an intervertebral disc and can be integrally attached to the annulus fibrosus of the disc to keep the implant in position, are described. Also, implants for meniscal repair comprising corticocancellous bone, which can extend from the outer edge of the meniscus to the inner region of the meniscus and can be integrally attached to the meniscal rim to keep the implant in position, are described. Implants for the repair of defects in bone, cartilage, and fibrocartilage are further described. Further described are methods for making such implants and for delivering the implants to a defect in a body part or body tissue of a subject.01-06-2011
20110029087INTERVERTEBRAL PROSTHESES WITH COMPLIANT FILLER MATERIAL FOR SUPPORTING ADJACENT VERTEBRAL BODIES AND METHOD - An intervertebral prosthesis and method includes an artificial interbody disc for engaging faces of adjacent natural vertebral bodies when a natural disc is replaced. Channels in the interbody disc can provide flexible characteristics to accommodate loads on the subject's spinal column. A bio-compatible filler material having a flexural stiffness of less than 12 GPa can encourage bone growth in the channels. The filler material may be inserted during an operation or pre-inserted in the disc channels during manufacturing of the disc.02-03-2011
20090018662INTERVERTEBRAL IMPLANT FOR THE LUMBOSACRAL JOINT - The invention provides an intervertebral implant for the lumbo-sacral joint, the implant comprising a spacer (01-15-2009
20110035010TOROID-SHAPED SPINAL DISC - An intervertebral implant for insertion between adjacent vertebral bodies is provided. The intervertebral implant can include a first component including a first articulating surface, which can be generally convex with a first radius of curvature. The first articulating surface can also define a stop element. The intervertebral implant can comprise a second component defining an aperture and including a second articulating surface. The second articulating surface can be generally concave and can have a second radius of curvature. The second articulating surface can be articulable with the first articulating surface for retaining motion between the first and second vertebra. A portion of the first articulating surface including the stop element can extend into the aperture and contacts a sidewall of the aperture to limit the range of articulation of the first component and the second component.02-10-2011
20110040385SPACE KEEPER FOR VERTEBRAE OR INTERVERTEBRAL DISKS - A space keeper for vertebrae or intervertebral disks is provided, which has a tubular section and teeth on the respective ends of the space keeper. On at least one end of the tubular section an element is provided, which has a top plate which is tiltable about an angle to the longitudinal axis of the tubular section.02-17-2011
20110040386Prosthetic intervertebral discs having substantially rigid end plates, fibers between those end plates, and core members with comparatively thin edges - Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.02-17-2011
20110245925ALLOGRAFT SPACER FILLERS - An allograft spacer filler for filling a medullary canal of a spinal spacer. The spacer filler is adapted to be hydrated with bone marrow aspirate (BMA). Allograft spacer filler constructs are created out of fully demineralized cancellous tissue. The spacer fillers are used in bone grafting procedures in combination with BMA. In other words, the spacer fillers provide an environment in which cells can be added (i.e. autologous or allogenic cells). In addition, the spacer fillers expand upon rehydration and provide a maximum surface area for graft to endplate contact in the spine. The spacer fillers provide a matrix for incorporation of new bone, have shape memory, and are sized and shaped such that they fit within a lumbar spacer, other allograft spinal implants, or can be used in other applications where an allograft is used.10-06-2011
20110245924Annulus-Reinforcing Band - A method and device for supporting bone graft including a porous enclosure having a first collapsed state and a second expanded state wherein the second expanded state is sized to conform to the excavated intervertebral cavity upon insertion of bone graft into the enclosure.10-06-2011
20110046742FIBRE-BASED SURGICAL IMPLANT AND METHOD OF MANUFACTURE - A fibre-based surgical implant stabilized against fraying, includes a thermally crimped flat-knitted fabric of a biocompatible, optionally biodegradable, polymer material having a glass transition temperature or other thermally induced secondary conformational mobility threshold in the temperature range of from 20° C. to +170° C. Also disclosed is a corresponding fabric and methods of producing the implant and the fabric.02-24-2011
20110046740SPINAL IMPLANTS, SURGICAL INSTRUMENT SETS AND METHODS OF USING THE SAME - The present invention provides a spinal implant for stabilizing adjacent vertebrae of a patient, comprising (i) two or more cages; and (ii) a support which is returnable from a constrained linear shape to an expanded shape and affixed to each of the two or more cages, said implant having a first configuration to arrange the cages in order when the support is in the constrained linear shape, and a second configuration that gives a transformed arrangement of the cages to define a plane by the cages and the support when the support is in the expanded shape. Also provided are a surgical instrument set and a method for implanting a spinal implant to a disc space of a patient.02-24-2011
20090265006Lateral Spinous Process Spacer - Interspinous process implants are disclosed. Also disclosed are systems and kits including such implants, methods of inserting such implants, and methods of alleviating pain or discomfort associated with the spinal column.10-22-2009
20090276049Implant for Transforaminal Intracorporeal Fusion - The invention relates to an implant for the transforaminal intracorporeal fusion of lumbar vertebral column segments. At least some sections of the surface areas that are in direct contact with the spinal column are provided with an anti-dislocation mechanism (11-05-2009
20090062921Implant with openings adapted to receive bone screws - A spinal fusion implant for insertion between adjacent vertebral bodies has opposed upper and lower surfaces adapted to contact each of the adjacent vertebral bodies from within the disc space, a leading end for insertion between the adjacent vertebral bodies, and a trailing end opposite the leading end. The trailing end has an exterior surface and an outer perimeter with an upper edge and a lower edge adapted to be oriented toward the adjacent vertebral bodies, respectively, and a plurality of bone screw receiving holes. At least one of the bone screw receiving holes is adapted to only partially circumferentially surround a trailing end of a bone screw received therein. At least one of the bone screw receiving holes passes through the exterior surface and one of the edges so as to permit the trailing end of the bone screw to protrude beyond one of the edges.03-05-2009
20090062920INTERVERTEBRAL DISC REPLACEMENT - An intervertebral disc replacement has two members attached to vertebral body endplates of two adjacent vertebrae. The two members are formed with respective articulation surfaces which form at least part of an articulation arrangement. When loaded with compressive axial force, the articulation arrangement supports the vertebral contact surfaces against the compressive force to ensure a predefined minimum intervertebral spacing, and allows a range of turning motion in all directions. The articulation arrangement is formed to provide an increase in the intervertebral spacing as a smooth function of angular displacement from a neutral position over at least part of the range of motion in each direction for each direction of motion, thereby providing motion attenuation and restoring forces.03-05-2009
20090062919PROSTHETIC VERTEBRAL ASSEMBLY - Intervertebral disc prostheses are provided. More particularly, the invention provides disc prostheses that have adjustable disc heights, that are readily converted into fusion prostheses and that provide a range of motions that effectively mimic the natural range of motions of a spinal disc.03-05-2009
20090062918Interspinous implant, tools and methods of implanting - Devices, tools and methods for minimally invasive implantation and distraction between spinous processes for treatment of spinous disorders. An interspinous implant device for distracting at least one pair of adjacent spinous processes includes a main body including a shaft having a longitudinal axis; and first and second arms extending transversely from the main body, wherein at least one of the first and second arms is slidably mounted with respect to the shaft. The arms are configured and dimensioned to extend laterally from both sides of the spinous processes when implanted therebetween and to be inserted between the spinous processes laterally from a single side thereof. The arms are variably positionable between a closed configuration, to facilitate insertion of the arms between the adjacent spinous processes, and an open configuration, in which the arms are separated from one another.03-05-2009
20090062917Spinal interbody replacement devices - A spinal interbody replacement device for supporting vertebrae in the space between the vertebrae includes a connecting member having upper and lower disc replacement members engageable thereto at opposite ends of the connecting member to provide a corpectomy device. The disc replacement members are sized to be positioned in a spinal disc space between adjacent vertebrae when disengaged from the connecting member.03-05-2009
20110245927TISSUE SPACER IMPLANT, IMPLANT TOOL, AND METHODS OF USE THEREOF - Tissue spacer implants, surgical distraction instruments, surgical insertion tools, coupling devices, surgical kits, surgical methods for distraction, and methods for coupling bodies are disclosed. The tissue spacer implants include a first end member, a second end member, and an intermediate spacer member having a coupling mechanism adapted to couple the first end member with the intermediate spacer member and to couple the second end member with the intermediate spacer member. The surgical instruments may be used for inserting these implants and include a first elongated member, a second elongated member, a distraction mechanism, and an actuator. The coupling devices may be used to couple the components of the implants.10-06-2011
20110245926INTERVERTEBRAL SPACER AND METHODS OF USE - An intervertebral implant device is presented. When placed between vertebral bodies of the mammalian spine, the device can effect fusion between the vertebral bodies. The implant is formed in layers in an arcuate geometry, wherein placement is facilitated by the implant first adopting a generally linear geometry, and through the process of placement reassumes its intrinsic arcuate form. The central axis of the spacer/implant may be oriented in a generally vertical direction, and lying generally parallel to the spinal axis. The implant may comprise shape memory materials to cause shape transition and formation of the device in situ between vertebral bodies.10-06-2011
20110245923INTERVERTEBRAL IMPLANT DEVICE FOR A POSTERIOR INTERBODY FUSION SURGICAL PROCEDURE - An intervertebral implant device, including: a pair of substantially parallel opposed arcuate surfaces; a pair of substantially parallel opposed frictional surfaces each including a plurality of raised structures; a substantially curved end wall joining the pair of parallel opposed arcuate surfaces; and a substantially recessed end wall joining the pair of parallel opposed arcuate surfaces; wherein the intervertebral implant device defines one or more voids in which a bone graft material is selectively disposed. Preferably, the substantially recessed end wall is configured to selectively and pivotably receive one or more surgical implantation devices.10-06-2011
20100137989INTERVERTEBRAL IMPLANT WITH FIXATION MECHANISM - The present application is directed to implants for positioned between vertebral members. The implant may include a superior surface to contact against a first vertebral member, and an inferior surface to contact against a second vertebral member. The implant includes a fixation mechanism that is operable to extend a portion of the fixation mechanism into the vertebral members immediately above and below the implanted implant to affix the implant within the vertebral space between such vertebral members. The implant is substantially open in the superior and inferior directions to allow for the introduction of bone growth material within the interior of the implant to help promote fusion between the vertebral members.06-03-2010
20110082553DEVICES AND METHODS FOR INTER-VERTEBRAL ORTHOPEDIC DEVICE PLACEMENT - A bone prosthesis device is comprised of an upper and lower abutment surfaces and an intervening malleable member. The device is sufficiently small so that implantation into an inter-vertebral disc space can be performed from a substantially posterior approach without significant impingement upon the neural elements.04-07-2011
20110144755PLIF opposing wedge ramp - A spinal fusion implant for implantation between adjacent vertebrae is formed in the approximate shape of a hollow cube. The device has an upper section and a lower section separated by a distractor all of which are relatively movable. The sidewalls of the upper section and the lower section terminate in inclined planes so that the sections move away from each other as the wedge shaped increases the height of the device. The upper section and lower section each includes a clamping flange. The clamping flange on the upper section engages the vertebral body above the implant and the clamping flange on the lower section engages the vertebral body below the implant. The distractor has a pair of clamping flanges on an end wall wherein one of the pair engages the vertebral body above the implant and the other engages the vertebral body below the implant. The clamping flanges provide a clamping action between adjacent vertebral bodies to restore alignment and stabilize the vertebral segments.06-16-2011
20110082556Artificial Spinal Disc - An artificial disc prosthesis is provided. The prosthesis enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate. The prosthesis may have a central keel on one end plate and an offset pair of keels on a second end plate. The nucleus may engage a slot or trough in an inner surface of an end plate. The trough can be open on the posterior or anterior end to allow the nucleus to slide into the trough without undue distraction of adjacent vertebrae. The nucleus can be prevented from moving out of the trough by inserting a stop in the trough.04-07-2011
20120245691EXPANDABLE INTERBODY SPACER - An expandable intervertebral spacer includes a body, a proximal end, and a distal end. The body includes quadrants that form a substantially cylindrical shape in a first configuration and a substantially cuboidal shape in a second configuration. Each quadrant includes a ramp portion with a ramp and a landing and a sliding portion with a sliding side and a foot. The ramp portion of a first quadrant engages the sliding portion of a second quadrant. The proximal end and the distal end couple with the plurality of quadrants and transfer an actuating force to expand the body from the first configuration to the second configuration.09-27-2012
20120245694ENDPLATE-PRESERVING SPINAL IMPLANT WITH AN INTEGRATION PLATE HAVING DURABLE CONNECTORS - An interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, a substantially hollow center, and single vertical aperture, as well as an integration plate having a roughened surface topography on its top surface. The integration plate and implant body are joined together with a durable connection.09-27-2012
20090204220Intervertebral Disc Nucleus Implants and Methods - Nucleus pulposus implants that are resistant to migration in and/or expulsion from an intervertebral disc space are provided. In one form of the invention, an implant includes a load bearing elastic body surrounded in the disc space by an anchoring, preferably resorbable, outer shell. In certain forms of the invention, the elastic body is surrounded by a supporting member, such as a band or jacket, and the supporting member is surrounded by the outer shell. Kits for forming such implants are also provided. In another form of the invention, an implant is provided that has locking features and optional shape memory characteristics. In yet another aspect of the invention, nucleus pulposus implants are provided that have shape memory characteristics and are configured to allow short-term manual, or other deformation without permanent deformation, cracks, tears, breakage or other damage. Methods of forming and implanting the implants are also described, as are delivery devices and components thereof for delivering the implants.08-13-2009
20090048676SPINE SURGERY METHOD AND MOTION PRESERVING IMPLANT - A spinal implant may be deployable, when positioned within a vertebral space between a pair of vertebral bodies, from a first laterally non-expanded condition to a second laterally expanded condition. The spinal implant may include top beams and bottom beams separated by at least one post that is, in one embodiment, length variable in response to a load put on the implant after deployment of the implant. In an alternate embodiment, at least one post is laterally variable in response to a load put on the implant. In another embodiment, one of the posts may be centrally located.02-19-2009
20090326658INTERVERTEBRAL PROSTHETIC DISC AND METHOD OF INSTALLING SAME - An intervertebral prosthetic disc that is configured to be installed within an intervertebral space that can be established between an inferior vertebra and a superior vertebra is disclosed. The intervertebral prosthetic disc includes an inferior articular half that can be configured to engage the inferior vertebra and a superior articular half that can be configured to engage the superior vertebra. The inferior articular half can be configured to cooperate with the superior articular half to allow relative angular motion between the inferior vertebra and the superior vertebra when installed. Further, the intervertebral prosthetic device can be sized and shaped to pass through a psoas muscle without injuring a spinal cord or a sympathetic chain.12-31-2009
20100063592INTERLOCKING MULTI-PIECE INTERVERTEBRAL DISC PROSTHESIS AND METHOD FOR IMPLANTING SAME - An interlocking intervertebral disc prosthesis is provided. The prosthesis can include a left prosthetic body and a right prosthetic body that interlock with one another. A kit for replacing an intervertebral disc with an interlocking intervertebral disc prosthesis is also provided. A method for surgically implanting an interlocking intervertebral disc prosthesis is also provided.03-11-2010
20120245696SPINAL IMPLANT APPARATUS AND METHODS - A method of inserting and positioning an intervertebral spacer is provided. The spacer includes a longitudinal axis, an on-axis interface coincident with or parallel to the longitudinal axis, and an off-axis interface angled to the longitudinal axis. The spacer's front end may be curved. The method may include inserting the spacer into the disc space utilizing a tool to engage an on-axis interface and then to engage one or more of the off-axis interfaces, which may be used for further modification of the spacer. The tool is moved substantially along a single insertion direction, which may be substantially parallel to a posterior-anterior axis of the disc space. The method may result in the longitudinal axis of the spacer being perpendicular to the insertion direction, or substantially parallel to a medial-lateral axis of the disc space. The spacer may also be positioned in an anterior aspect of the disc space.09-27-2012
20120245692Method and Apparatus for Computerized Surgery - An implant for use in spinal surgery comprises a resilient element having an inflatable cavity. It is formed of a biologically compatible material and is arranged for placement between end plates of adjacent vertebra. The implant may also include a wound disc replacement element. A method of performing spinal surgery on a patient comprises securely mounting a patient onto a patient support table; imaging a spinal region of the patient; building up a three-dimensional image file of the spinal region of the patient; storing the image file; and utilizing the image file for planning and carrying out computer controlled spinal surgery on the patient utilizing the implant. A computer-controlled surgical implant system comprises a steerable endosurgical implanting assembly operative to install the implant at a desired location in a patient; and a computerized controlled, which operates the steerable endosurgical implanting assembly.09-27-2012
20090216331Spinal Implant with expandable fixation - A spinal implant which is configured to be deployed between adjacent vertebral bodies. The implant has at least one fixation element with a retracted configuration to facilitate deployment of the implant and an extended configuration so as to engage a surface of an adjacent vertebral body and secure the implant between two vertebral bodies. Preferably, the implant is expandable and has a minimal dimension in its unexpanded state that is smaller than the dimensions of the neuroforamen through which it must pass to be deployed within the intervertebral space. Once within the space between vertebral bodies, the implant can be expanded so as to engage the endplates of the adjacent vertebrae to effectively distract the anterior disc space, stabilize the motion segments and eliminate pathologic spine motion. Angular deformities can be corrected, and natural curvatures restored and maintained.08-27-2009
20090216330SYSTEM AND METHOD FOR AN INTERVERTEBRAL IMPLANT - The invention relates to the preparation of an intervertebral space with a trial implant (08-27-2009
20100070035INTERVERTEBRAL DISC PROSTHESIS AND METHOD FOR IMPLANTING AND EXPLANTING - Prosthesis for inserting into a damaged intervertebral disc having an elongated tubular main prosthesis body with a length to fit laterally from one side of a disc to the other at its mid-plane. The main prosthesis body has a vertical height slightly greater than the height of normal disc space of the damaged intervertebral disc into which it is to be implanted, and a shape in cross section normal to its longitudinal axis so that main prosthesis body makes appropriate contact with vertebrae abutting to the damaged intervertebral disc. Heads having a vertical height greater than the vertical height of the main prosthesis body are mounted on the ends of the main prosthesis body. A method for implanting from one side only and a method for explanting from one side only.03-18-2010
20100070034CERVICAL INTRA-LAMINA FUSION IMPLANT DEVICE AND METHOD - A cervical intra-laminar fusion implant to be placed in cervical lamina includes a first lateral surface including a first arched edge, a second lateral surface positioned opposite to the first lateral surface, the second lateral surface including a plurality of posterior windows and a second arched edge, a top wall attached to the first lateral surface and the second lateral surface, the top wall having a plurality of teeth, a bottom wall positioned opposite to the top wall and attached to the first lateral surface and the second lateral surface, the bottom wall having a plurality of bottom teeth, a plurality of internal voids configured through the top wall and the bottom wall, and a connection mechanism connected to the top wall. The connection mechanism is positioned superior over the cervical lamina.03-18-2010
20100070040Intervertebral Disc Replacement - Instrumentation for implanting a cervical disc replacement device includes cervical disc replacement trials for determining the appropriate size of replacement device to be implanted, an insertion plate for maintaining the elements of the replacement device in fixed relation to one another for simultaneous manipulation, an insertion handle for attachment to the insertion plate for manipulation of the elements, an insertion pusher for releasing the insertion handle from the insertion plate, a drill guide that cooperates with the insertion plate to guide the drilling of tap holes for bone screws to be placed through bone screw holes in the flanges of the replacement device, clips that are applied to the flanges after placement of the bone screws to resist screw backout, and a clip applicator for applying the clips to the flanges.03-18-2010
20100070037ORTHOPAEDIC IMPLANTS AND PROSTHESES - The present invention provides a spinal implant or prosthesis having a plate portion for securing to adjacent vertebrae and a cage portion for insertion therebetween in which one or more plate portions are pivotally connected to the cage portion. Preferably, both the upper and lower portions are pivotally connected to rotate about a common axis (X).03-18-2010
20110178599INTERVERTEBRAL IMPLANT HAVING EXTENDABLE BONE FIXATION MEMBERS - An intervertebral implant is configured to be fixed in an intervertebral space defined by a first vertebral body and a second vertebral body. The intervertebral implant includes an implant body sized to be inserted into an intervertebral space, and a fixation assembly configured to be attached to the implant body. The fixation assembly includes a housing that defines a first vertebral body facing surface and a second vertebral body facing surface spaced from the first vertebral body facing surface along a transverse direction. The fixation assembly further includes at least one fixation member supported by the housing and movable from a retracted position to an extended position, whereby in the extended position the fixation member extends out from the housing and into one of the vertebral bodies.07-21-2011
20100057208Expandable spinal fusion cage and associated instrumentation - An expandable spinal implant comprising a cage body including at least two movable branches having first end portions that are interconnected to one another and second end portions that are movable relative to one another. The movable branches include a first shell portion having a first pair of longitudinal edges and defining a first hollow region therebetween, and a second shell portion having a second pair of longitudinal edges and defining a second hollow region therebetween, with the first and second hollow regions cooperating to define at least a portion of a hollow interior of the cage body. An expansion member co-acts with the first and second shell portions to transition the cage body to an expanded configuration as the expansion member is axially displaced along said first and second pairs of longitudinal edges. In one embodiment, at least one of the shell portions defines a plurality of retention elements positioned at select axial locations along a corresponding one of the longitudinal edges, with the expansion member engaged with one or more of the retention elements to retain the expansion member at a select axial position to maintain the implant in the expanded configuration.03-04-2010
20100057207Bone grafts - Spinal spacers 03-04-2010
20100070042Implantable Joint Prosthesis - The invention relates to a surgical implant that provides an artificial diarthroidal-like joint, suitable for use in replacing any joint, but particularly suitable for use as an intervertebral disc endoprosthesis. The invention contains two rigid opposing shells, each having an outer surface adapted to engage the surfaces of the bones of a joint in such a way that the shells are immobilized by friction between their outer surfaces and the surfaces of the bone. These outer surfaces are sufficiently rough that large frictional forces strongly resist any slippage between the outer surface and the bone surfaces in the joint. They may be convex, and when inserted into a milled concavity, are immediately mechanically stable. Desirably, the outer surfaces of the shells are adapted to allow for bony ingrowth, which further stabilizes the shells in place. The inner surfaces of the shells are relatively smooth, and adapted to slide easily across a portion of the outer surface of a central body disposed between the shells. The central body has a shape that cooperates with the shape of the inner surface of the shell so as to provide a range of motion similar to that provided by a healthy joint. A flexible sheath extends between edges of the opposing shells. The inner surface of this sheath, together with the inner surfaces of the rigid shells, defines a cavity encasing the central body. At least a portion of this cavity is filled with a fluid lubricant, further decreasing the frictional force between inner surfaces of the shell and the surface of the central body.03-18-2010
20100070041Expandable spinal implant and associated instrumentation - An expandable spinal implant including an implant body transitionable between an initial configuration and an expanded configuration. The implant body includes first and second axial walls spaced apart along a transverse axis, with at least one of the walls including first and second axial wall portions laterally offset from one another. An expansion member co-acts with the first wall portion to outwardly displace the first wall portion relative to the second wall portion to transition the implant body to the expanded configuration. In another embodiment, the first wall portion defines a recessed region relative to the second wall portion when the implant body is in the initial configuration, and wherein the recessed region is outwardly expanded as the implant to body is transitioned to the expanded configuration. In a further embodiment, the first wall portion is movable while the second wall portion remains substantially stationary.03-18-2010
20100070039INTERBODY SPACER - An interbody spacer is provided. The spacer includes a housing having a top portion, a bottom portion, and a plurality of side portions disposed between the top portion and the bottom portion, a midline portion configured to be disposed across at least one of the top portion and the bottom portion of the housing, an opening disposed between the top portion and the bottom portion, and a grooved channel disposed in at least one of the plurality of side portions. The top and bottom portions are configured to include a plurality of projections configured to protrude away from the top and bottom portions.03-18-2010
20100070038INTERSPINOUS IMPLANT - This interspinous implant (03-18-2010
20110153021NUCLEUS PULPOSUS REPLACEMENT DEVICE - A nucleus pulposus replacement device comprises a body of an elastomeric material which is able to be introduced and positioned within an annulus of an intervertebral disc of a patient. The material is of a form which undergoes a change from a first state, in which the body of material is able to conform substantially to a shape of a nuclear cavity of the intervertebral disc, to a second state, in which the body of material mimics bio-mechanical properties of a natural, healthy nucleus pulposus of an intervertebral disc. The material is of a consistency which inhibits leakage from an annulus fibrosis of the intervertebral disc.06-23-2011
20110082552Prosthetic Intervertebral Discs Implantable By Minimally Invasive Surgical Techniques - The described devices are bound spinal implants that may be surgically implanted into the spine to replace damaged or diseased discs using a posterior, lateral, or postero-lateral approach. The discs are prosthetic devices that approach or mimic the physiological motion and reaction of the natural disc.04-07-2011
20110251689Intervertebral Implant - The present invention provides an intervertebral implant for implantation in a treated area of an intervertebral space between vertebral bodies of a spine. The implant includes a spacer portion having an inferior and superior surface, wherein the inferior and superior surfaces each have a contact area capable of engaging with anatomy in the treated area, and the inferior and superior surfaces define a through-hole extending through the spacer body. The present invention further provides screw holes extending from a side portion to the inferior and superior surfaces of the spacer portion and a plate portion rigidly coupled to the spacer portion through a coupling means, wherein the plate portion contains screws holes for receiving screws. A screw back out prevention mechanism adapted on the plate portion to prevents the back out of screws from the screw holes and to secure the spacer portion to the plate portion of the intervertebral implant.10-13-2011
20110098820END CAP FOR A VERTEBRAL IMPLANT - An implant for insertion between adjacent vertebral members, comprising an implant body with at least one base section and an end cap. The end cap is adapted for selective positioning on a base section via rotational adjustment of the end cap. The end cap comprises an exterior contact surface that faces away from the implant body when positioned on the base section, a seating surface which contacts the base section when positioned on the implant body, an end cap angulation, and locking passages extending between the exterior contact surface and seating surface and adapted to receive base section teeth. The locking passages and base teeth are complimentarily configured to engage and securely maintain the end cap positioned on the base section such that the implant imparts the end cap angulation to an adjacent vertebral body at a selected point when the implant is positioned between adjacent vertebral members.04-28-2011
20110251693EXPANDABLE DEVICE FOR DISTRACTING SPINAL TISSUE SURFACES - An expandable interbody fusion device includes superior and inferior endplates that are configured to receive a sequentially inserted stack of interlocking expansion members or wafers. The like-configured wafers include features on their top and bottom surfaces that interlock the wafers in multiple degrees of freedom so that the wafer stack is not disrupted when the fusion device is fully expanded. One of the interlocking features includes a plurality of prongs projecting from an upper surface of the wafers and into a recess defined in the lower surface of an adjacent previously inserted like-configured wafer. The prongs and recesses are configured to prevent retrograde movement of each new wafer in a direction opposite the direction of insertion. Other interlocking features prevent movement in the direction of insertion, transverse to the insertion direction and vertically within the stack.10-13-2011
20110077741Vertebral Fusion Implants and Methods of Use - A vertebral implant for use in vertebral fusion surgeries includes a body with an exterior surface and an interior surface. The interior surface defines an interior cavity into which bone growth promoting materials such as bone graft are insertable. The body also includes a plurality of apertures that extend from the exterior surface to the interior surface. Further, the vertebral implant includes a cutting feature to decorticate bone that protrudes outward from the exterior surface at each aperture. The cutting feature is shaped so that as a cutting force is applied to move the implant in a cutting direction, the removed bone matter is directed through the apertures and into the interior cavity.03-31-2011
20110082554DEVICES FOR DELIVERING SPINAL DISC IMPLANTS - A spinal disc implant delivery device includes a blocking component having opposed distal and proximal ends. The proximal end of the blocking component includes an anchor member configured and adapted for movement between an undeployed position in which the anchor member can pass into and out of an opening in a disc annulus, and a deployed position in which the anchor member anchors the blocking component to the opening of the disc annulus. In the deployed position, the anchor member is configured to prevent extrusion of implant material from the opening of the disc annuls. An implant delivery needle is located radially within the blocking component and has opposed proximal and distal ends. The needle is configured to deliver implant material from the distal end thereof to an interior of a disc annulus.04-07-2011
20120150305Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.06-14-2012
20120150304Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.06-14-2012
20110077739INTERVERTEBRAL DISC PROSTHESIS - The invention relates to an intervertebral disc prosthesis comprising at least two plates, namely first and second plates, articulated about each other by means of a curved surface, namely articulation, of at least one of the plates, each of the plates comprising a surface known as a contact surface, intended to be in contact with a vertebral plate of one of the vertebrae between which the prosthesis is intended to be inserted, this contact surface for each of the plates comprising a geometrical centre at equal distance from at least two diametrically opposite points located on the periphery of the plate, in which the geometric centres of the plates are not vertically aligned, this off-setting of the geometrical centres of the plates engendering an off-setting of the edges of the plates in at least one direction perpendicular to the vertical axis of the spinal column.03-31-2011
20110060416ENDPLATE FOR AN INTERVERTEBRAL PROSTHESIS AND PROSTHESIS INCORPORATING THE SAME - An endplate for an intervertebral disc prosthesis includes: a plate member having a generally planar rim for contacting the peripheral cortical rim of a vertebral body, and an elevated region within the rim having an anterior region and a posterior region, wherein the anterior region of the elevated region is preferably recessed with respect to the posterior region and is treated to promote bone ingrowth. The endplate may be provided with a medial fin extending partway from the anterior edge of the endplate toward the posterior edge of the endplate.03-10-2011
20090018661Prosthetic Intervertebral Discs - Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.01-15-2009
20090018659INVERTEBRAL SPINAL IMPLANT AND METHOD OF MAKING THE SAME - An invertebral implant for replacing a damage invertebral disk within the spinal column can include a generally flat body having opposing surfaces. To promote bone growth and fusion of the adjacent vertebrae together, in an aspect, the implant can be provided with osteogenic or medicinal material received into one or more apertures disposed into the surfaces of the implant. To better retain the osteogenic material, the apertures can be disposed on a non-perpendicular angle with respect to the implant and/or can be tapered. In another aspect, the implant can include a plurality of grooves disposed across a surface to reduce slipping of the inserted implant between the adjacent vertebrae. In a further aspect, the implant can be formed by cutting a plurality of implants parallel along the diaphysis of a long bone. In another aspect, the implant can be generally as a bow or question mark.01-15-2009
20120303129COMPOSITE INTERBODY SPINAL IMPLANT HAVING OPENINGS OF PREDETERMINED SIZE AND SHAPE - An interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, a substantially hollow center, and a single vertical aperture. The single vertical aperture extends from the top surface to the bottom surface, has a size and shape predetermined to maximize the surface area of the top surface and the bottom surface available proximate the anterior and posterior portions while maximizing both radiographic visualization and access to the substantially hollow center, and defines a transverse rim. The body may be non-metallic and may form one component of a composite implant; the other component is a metal plate disposed on at least one of the top and bottom surfaces of the body.11-29-2012
20120303128SPINAL IMPLANT AND INTEGRATION PLATE FOR OPTIMIZING VERTEBRAL ENDPLATE CONTACT LOAD-BEARING EDGES - An interbody spinal implant including a body and an integration plate having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, and a substantially hollow center in communication with a vertical aperture. The body is recessed in a way that portions of the integration plate protrude above the top and/or bottom surface of the body to enhance the resistance of the implant to expulsion from the intervertebral space.11-29-2012
20120303127IMPLANTS HAVING INTERNAL FEATURES FOR GRAFT RETENTION AND LOAD TRANSFER BETWEEN IMPLANT AND VERTEBRAE - An interbody spinal implant, such as a solid-body or composite implant, includes at least one graft contact surface as one or more of the internal surfaces of the implant. The graft contact surface, for example, having at least one ridge or groove is designed to contact and promote retention and stabilization of bone growth-inducing materials placed within the internal openings of the implant body. In addition, the ridges or grooves may influence the biological processes to promote bone healing and fusion. Also disclosed are processes of fabricating the graft contact surfaces and other surface topographies on the implant.11-29-2012
20120303126FUSION SYSTEM AND METHOD FOR FUSING SPINAL BONES - This invention relates to a spinal fusion system and method for use as a prosthetic implant. The system and method includes a housing dimensioned to be situated between adjacent spinal bones, such as adjacent vertebrae. The housing cooperates with the spinal bones to define a graft area for receiving graft material, which may be inserted anteriorly into the housing during a surgical operation such as a vertebrectomy or discectomy. A housing may have various features such as migration preventers to prevent the housing from migrating posteriorly towards a spinal column and can be used with a cover that permits the housing to “float” relative thereto. Screws are provided in one embodiment and are dimensioned or configured to lock against each other to retain the screws and, consequently, the cover in place.11-29-2012
20120303125System And Methods For Performing Surgical Procedures and Assessments - The present invention involves systems and related methods for performing surgical procedures and assessments, including the use of neurophysiology-based monitoring to: (a) determine nerve proximity and nerve direction to surgical instruments employed in accessing a surgical target site; (b) assess the pathology (health or status) of a nerve or nerve root before, during, or after a surgical procedure; and/or (c) assess pedicle integrity before, during or after pedicle screw placement, all in an automated, easy to use, and easy to interpret fashion so as to provide a surgeon-driven system.11-29-2012
20120303124BONE FUSION DEVICE - A bone fusion device provides stability to bones during a bone fusion period. The bones include, for example, the vertebrae of a spinal column. The bone fusion device comprises one or more extendable tabs attached to the bone fusion device by associated rotating means. The bone fusion device is preferably inserted by using an arthroscopic surgical procedure. During arthroscopic insertion of the device, the tabs are pre-configured for compactness. In this compact configuration, the tabs are preferably deposed along and/or within an exterior surface of the bone fusion device. After the bone fusion device has been positioned between the bones, one or more tab(s) are extended. In the preferred embodiment, the position of each tab is related to a positioning element and extending blocks. Typically, the tabs advantageously position and brace the bone fusion device in the confined space between the bones until the bones have fused.11-29-2012
20120303123SPINAL IMPLANT - A spinal implant as provided having a porous body that includes a leading end, a convex trailing end and first and second sides extending between the leading and trailing ends. At least a portion of the leading end is generally straight. The body further includes a generally dome-shaped superior surface and a generally planar inferior surface. The superior surface is convex between the leading and trailing ends and is convex between the first and second sides.11-29-2012
20110060414ADHESIVE, SHOCK-ABSORBING INTERVERTEBRAL DISK PROSTHESIS - The invention relates to an adhesive, shock-absorbing prosthesis (03-10-2011
20110060415INTERVERTEBRAL PROSTHETIC DEVICE - An implant is intended to be inserted into an intervertebral space and more specifically between two cervical vertebrae or also into a lumbar space, following body measurement adaptations. This component comprises, on the inside, an assembly comprising a protective and reinforcing shield made of a tough material with, in the continuation thereat, a ball which acts as a load-spreading centre. In order to adapt to suit the morphology of the receiving site, the implant is a soft polymer monobloc sized to suit the intervertebral space with a concave posterior end and an anterior end that is flat with rounded corners made of a preferably slightly soft polymer such as silicone or any other material that is similar but able to withstand compression. The upper and lower faces are reinforced by a yoke of greater density and are covered with an osteoconduclion or osteoinduction agent. The exterior periphery of the component is enclosed in a strip of polyester embedded into the surface of the constituent material. Four X-ray markers are included in this component, two of them vertical and two horizontal. Attached to the anterior part is a plate of soft elastomer internally reinforted by a polyester web perforated with holes for vertebral attachment.03-10-2011
20110251692Expandable Vertebral Implant - The present invention relates to an expandable implant for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.10-13-2011
20120150301Novel Implant Inserter Having a Laterally-Extending Dovetail Engagement Feature - A spinal implant inserter having a) an outer sleeve having a bore, and b) a forked inner shaft having a proximal rod and a pair of distal tynes extending therefrom, each distal tyne comprising an engagement feature having a laterally-extending dovetail feature. An assembly comprising the implant inserter and an implant having a pair of mating dovetail features.06-14-2012
20110029084FOAM PROSTHESIS FOR SPINAL DISC - Disclosed herein are spinal disc implants comprising a foam adapted to completely or partially replace a nucleus pulposus within a spinal disc cavity, the foam being a nonabsorbable, closed cell and having a Poisson ratio of less than 0.5. Also disclosed are methods of implanting a foam, either as an in-situ curable material or as a preformed foam.02-03-2011
20110004313Customized Intervertebral Prosthetic Disc With Shock Absorption - A prosthesis system comprises plates that can be positioned against vertebrae and a selected resilient core that can be positioned between the plates to allow the plates to articulate. The selected resilient core can be chosen from a plurality of cores in response to patient characteristics, such as age and/or intervertebral mobility, such that the prosthesis implanted in the patient is tailored to the needs of the patient. The plurality of cores may comprise cores with different resiliencies, and one of the cores can be selected such that the upper and lower plates articulate with the desired shock absorbing resiliency and/or maximum angle of inclination when the one selected core is positioned between the plates.01-06-2011
20100305705EXPANDABLE SPINAL INTERBODY AND INTRAVERTEBRAL BODY DEVICES - A device for insertion into a spinal (intervertebral or intravertebral) space is expandable from a first circumference to a second circumference through axial compression of segments of the device, particularly once the device has been properly situated within a vertebral space. The interbody/intravertebral body device is characterized by a plurality of axially stacked, individual segments that are provided on a central insertion and deployment rod. Each segment includes a central plate or body to which are pivotally attached plate or leaf structures. Pivoting of the structures provides a collapsed or unexpanded position of the first circumference and an open or expanded position of the second circumference.12-02-2010
20100305706SPINAL IMPLANT - A spinal implant may be used to stabilize a portion of a spine. The implant may promote bone growth between adjacent vertebrae that fuses the vertebrae together. An implant may include an opening through a height of a body of the implant. The body of the implant may include curved sides. A top and/or a bottom of the implant may include protrusions that contact and/or engage vertebral surfaces to prevent backout of the implant from the disc space. A variety of instruments may be used to prepare a disc space and insert an implant. The instruments may include, but are not limited to, a distractor, a rasp, and one or more guides. The implant and instruments may be supplied in an instrument kit.12-02-2010
20090299478Lordotic Implant for Posterior Approach - An intervertebral implant for positioning in a lordotic disc space that avoids any unnecessary cutting of bone and therefore, any unwanted subsidence, is provided. Specifically, the implant can work particularly well between the L5-S1 juncture. The implant comprises an inferior component, and a superior component, wherein the superior component has an upper portion and a lower portion, wherein an expandable component is situated between the upper portion and the lower portion, and the implant has a profile that changes from a relatively flat profile to a relatively angled profile. A method for inserting an intervertebral implant into a lordotic intervertebral disc space from a posterior approach without unnecessary bone removal, and without resulting subsidence also is provided.12-03-2009
20120277871INTERBODY FUSION SYSTEM WITH INTERVERTEBRAL IMPLANT RETENTION ASSEMBLY - An implant assembly is disclosed, and includes an implant member and a plate configured to be coupled with the implant member. The plate defines a horizontal plane and includes at least one bore through the plate. The bore has an inlet aperture and at least one exit aperture. The inlet aperture has a curvilinear seat. A fastener is configured for insertion through the at least one bore, and the fastener has a curved portion. The curved portion of the fastener is configured to contact the contact the curvilinear seat to secure the plate to the implant member.11-01-2012
20120277870Spinal Interbody Implant With Bone Screw Retention - A spinal interbody implant has a bone screw retention mechanism that prohibits bone screws from backing out after the bone screws are installed. A bone screw retention plate is received in a plate retention area of the implant to provide a barrier that keeps the installed bone screws from backing out of their bone screw pocket. The bone screw retention mechanism consists of a retention plate and a configured plate retention area in a face of the implant body. Retention plate fasteners may be used to retain the configured plate. In one form, the bone screw retention mechanism consists of a retention plate, a configured plate retention area in a face of the implant body, and a retention plate bolt. In another form, the bone screw retention mechanism consists of a retention plate, a configured plate retention area in a face of the implant body, and a retention plate bolt.11-01-2012
20120277872Interbody fusion device with snap on anterior plate and associated methods - A method and apparatus is provided for use in spinal fusion procedures. An interbody fusion device has a first piece that is a load bearing device designed to bear the axial loading from the end plates of adjacent vertebrae. A second piece of the interbody fusion device is a retention device whose function is to prevent migration of the load bearing device. One or more fasteners secure the retention device to the vertebrae above and below the load bearing device. The fasteners cause the end plates of the vertebrae to compress the end plates to the load bearing device to facilitate proper fusion. The device includes a snap in mechanism for coupling the first piece to the second piece.11-01-2012
20110213464INJECTION OF FIBRIN SEALANT IN THE ABSENCE OF CORTICOSTEROIDS IN SPINAL APPLICATIONS - A method and kit for treating a disc that is leaking nucleus pulposus through at least one defect in the annulus fibrosus. The method includes injecting a fibrin sealant into the disc to reduce at least a portion of the at least one defect, wherein the fibrin sealant injected into the disc comprises fibrinogen and an activating compound, wherein at least a portion of the fibrin forms after injection, with the proviso that a corticosteroid is absent from the fibrin sealant injected into the disc.09-01-2011
20110178602METHODS AND APPARATUS FOR TREATING DISC HERNIATION AND PREVENTING THE EXTRUSION OF INTERBODY BONE GRAFT - Medical devices for treating an annulus fibrosis are described. The annulus fibrosis has an outer layer, at least one inner layer, and a defect extending through the outer and inner layers. The devices include first and second elongate fastening members, each having a first end, a second end, and an anchor on the first end that is substantially transverse when deployed. Additionally, a connector links the first and second elongate fastening members07-21-2011
20110251690INTERVERTEBRAL IMPLANT - An intervertebral implant includes opposing upper and lower endplates that are configured to engage respective vertebral surfaces in an intervertebral space. The implant carries a plurality of bone fixation spikes that extend out from each endplate. The spikes define a plurality of outer surfaces that extend from a base to a tip. The spikes are laterally staggered, and have a height that increases along a longitudinal direction from the front toward the rear of the implant, and a define recess formed in at least one outer surfaces.10-13-2011
20110160863Method of Implanting Intervertebral Disk Prosthesis - Embodiments disclosed herein provide a method of implanting an intervertebral disk prosthesis that can be assembled and disassembled in a minimally invasive fashion. The prosthesis comprises a first fixing element having an anchoring first face and a cooperation second face; a second fixing element having an anchoring first face and a cooperation second face; a first prosthesis element having an active first face and a cooperation second face, the cooperation faces of the first fixing element and the first prosthesis element serving to fasten the two elements together; a second prosthesis element having an active first face and a cooperation second face, the cooperation faces of the second fixing element and the second prosthesis element serving to fasten the two elements together; and each of the active faces of the prosthesis elements defining at least a portion of a spherical cap.06-30-2011
20120123548METHODS OF DELIVERING AN IMPLANT TO AN INTERVERTEBRAL SPACE - According to some embodiments, a method for promoting spinal fusion using a spinal implant comprises providing a spinal implant, wherein the spinal implant comprises an anterior wall, a posterior wall and two lateral walls configured to extend between the anterior wall and the posterior wall. In some embodiments, the spinal implant further comprises at least one internal chamber generally positioned between the anterior wall, the posterior wall and the two lateral walls, wherein the internal chamber being is adapted to receive at least one graft and/or other fill material.05-17-2012
20100004750Mechanical apparatus and method for artificial disc replacement - The present invention relates to a device and method to 1) facilitate disk fusing, 2) perform an artificial replacement of the nucleus, 3) perform an artificial replacement of the annulus, or 4, perform an artificial replacement of both the nucleus and annulus. The device is designed to be placed into the inter-vertebral space following diskoctomy. The invention includes a delivery catheter and an expandable continuous mesh loop that has a torus configuration with a lumen within the mesh and a central hole. The mesh loop can be diametrically increased or contracted in diameter by the control element acting on the mesh loop. The mesh loop may be formed of a woven or braided material for a polymer such as PEEK (polyetheretherketone), nylon, polyurethane, polyester, polyethylene, polypropylene or any other biocompatible polymer, or formed from a metallic braid of stainless steel, Elgiloy, Nitinol, or any other biocompatible metal.01-07-2010
20100004752Vertebral body and disc space replacement devices - A vertebral replacement device for supporting adjacent vertebrae includes a vertebral body member having at least one of an upper or lower disc replacement member engaged thereto at one end thereof. The disc replacement device can be positioned in a spinal disc space when disengaged from the vertebral body member.01-07-2010
20100004751Mechanical apparatus and method for artificial disc replacement - The present invention relates to a device and method to 1) facilitate disk fusing, 2) perform an artificial replacement of the nucleus, 3) perform an artificial replacement of the annulus, or 4, perform an artificial replacement of both the nucleus and annulus. The device is designed to be placed into the inter-vertebral space following diskectomy. The invention includes a delivery catheter and an expandable continuous mesh loop that has a torus configuration with a lumen within the mesh and a central hole. The mesh loop can be diametrically increased or contracted in diameter by the control element acting on the mesh loop. The mesh loop may be formed of a woven or braided material for a polymer such as PEEK (polyetheretherketone), nylon, polyurethane, polyester, polyethylene, polypropylene or any other biocompatible polymer, or formed from a metallic braid of stainless steel, Elgiloy, Nitinol, or any other biocompatible metal.01-07-2010
20100004749INTERVERTEBRAL DISK PROSTHESIS SYSTEM - An intervertebral disk prosthesis system, which is used for forming an artificial intervertebral disk and comprises a first and a second prosthesis component wherein each of the two prosthesis components comprises a first and a second vertebral body contacting element for placement on neighboring vertebral bodies bounding an intervertebral disk space of a spinal column and a joint element that is mounted between and is moveable relative to at least one of the first and second vertebral body contacting elements, attains a substantially natural range of motion independent of the positioning of the two prosthesis components relative to each other and to the neighboring vertebral bodies. Each prosthesis component has a ball joint formed between the first and second vertebral body contacting elements.01-07-2010
20120123544Intervertebral Spacer and Method of Installation Thereof - The present invention provides an intervertebral spacer capable of being installed into an intervertebral disc space. In one embodiment, the intervertebral spacer comprises a body portion. The body portion comprises a first end, a second end, a first side portion connecting the first end and the second end, and a second side portion connecting the first end and the second end. An entrance port is defined in the first end of the body portion. A first exit port is defined in the first side portion of the body portion. A second exit port is defined in the second side portion of the body portion.05-17-2012
20120203348PUSH-IN INTERBODY SPINAL FUSION IMPLANTS FOR USE WITH SELF-LOCKING SCREWS - An apparatus including an interbody spinal fusion implant having a leading end, a trailing end, and a length therebetween, and opposed upper and lower portions adapted to contact each of the adjacent vertebral bodies. Each of the upper and lower portions having at least one opening adapted to communicate with one each of the adjacent vertebral bodies and to communicate with one another to permit for the growth of bone from vertebral body to adjacent vertebral body through the implant. Each of the upper and lower portions has at least one screw hole passing therethrough proximate the trailing end. The apparatus further includes bone screws adapted for placement through the screw holes of the upper and lower portions and into each of the adjacent vertebral bodies adjacent the disc space to be fused and into which the implant is adapted to be positioned.08-09-2012
20120203347Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.08-09-2012
20120203345Lumbar Disc Replacement Implant for Posterior Implantation with Dynamic Spinal Stabilization Device and Method - The invention consists of disc replacement implant for the lumbar spine designed for insertion into the disc space via a posterior approach. The implant can be stabilized in the disc space by connection to the vertebra or can be connected to dynamic spinal stabilization device consisting of interconnected bullets nested in a spring nested in a woven sleeve. By controlling the limits of elongation and compression the device prevents movement beyond normal physiological limits. In the midrange of movement flexibility is allowed. A method for using the dynamic spinal stabilization device is also provided.08-09-2012
20120203344SYSTEM AND METHODS FOR INSERTING A SPINAL DISC DEVICE INTO AN INTERVERTEBRAL SPACE - A system for replacing a natural nuclear disc in an intervertebral space has a spinal device configured for placement in the intervertebral space. An insertion tool is configured for holding the spinal device while the spinal device is inserted into the intervertebral space. A gripping member of the insertion tool has an end for adjustably holding the spinal device within the intervertebral space. A steering actuator of the insertion tool is operably connected to the spinal device and configured for pivoting the adjustably held spinal device within the intervertebral space while the steering actuator is controlled remotely from the intervertebral space.08-09-2012
20110153022BALLOON-ASSISTED ANNULUS REPAIR - The present invention is directed to an inflatable annulus repair device (06-23-2011
20080243256DEVICES USED TO TREAT DISC HERNIATION AND ATTACHMENT MECHANISMS THEREFORE - A method for retaining an intra-discal material within an annulus fibrosis is described. The annulus fibrosis has a posterior annulus, an inside surface, and an opening with a lateral and a vertical dimension. A single wire and a band is provided. The single wire is made of shape-memory material and has a first compressed configuration and a second expanded configuration. The band and the single wire, which is in the first compressed configuration, is inserted through the opening in the annulus fibrosis. After insertion through the opening, the single wire expands to the second expanded configuration. The single wire and the band are positioned near the posterior annulus to rest against annulus fibrosis tissues adjacent the opening on the inside surface of the annulus fibrosis, such that the band is positioned to rest against annulus fibrosis tissues adjacent the opening, thereby preventing escape of intra-discal material through the opening.10-02-2008
20080243252Spinal implant system - The present invention provides an intervertebral prosthesis generally defining a first wall, a second wall, sidewalls extending from the first wall to the second wall, and an upper surface and a lower surface. One or more passages may be included providing for an affixation element, to be inserted therethrough. The passages may each include a first portion for receiving a head or tip of an affixation element, and a second portion of a smaller diameter, where a substantial amount of the second portion of the passage located above or below a midline of the prosthesis. One or more openings may also be provided on the spinal prosthesis for coupling the prosthesis to a surgical tool, and the upper and lower surfaces of the prosthesis may include a depression or portion void of any teeth for the insertion of the prosthesis where a distraction tool is situated about the surgical site.10-02-2008
20080243255Radially expandable spinal interbody device and implantation tool - A radially expandable spinal interbody device for implantation between adjacent vertebrae of a spine is deliverable to an implant area in a radially collapsed state having minimum radial dimensions and once positioned is then radially expandable through and up to maximum radial dimensions. The expanded radially expandable spinal interbody device is configured to closely mimic the anatomical configuration of a vertebral face. The radially expandable spinal interbody device is formed of arced, pivoting linkages that allow transfiguration from the radially collapsed minimum radial dimensions through and up to the radially expanded maximum radial dimensions once deployed at the implant site (i.e. between adjacent vertebrae). The pivoting linkages have ends with locking features that inhibit or prevent overextension of the linkages. In one form of the locking features, one end of the linkage includes lobes that form a pocket while the other end of the linkage includes a projection that is adapted to be received in the pocket of the lobes of an adjacent linkage. A kit is also provided including a tool for the implantation and deployment of the spinal interbody device into an intervertebral space.10-02-2008
20080243251Intervertebral Device Having Expandable Endplates - An intervertebral implant having an endplate that can be slidably expanded following its placement in the intervertebral space.10-02-2008
20090222096MULTI-COMPARTMENT EXPANDABLE DEVICES AND METHODS FOR INTERVERTEBRAL DISC EXPANSION AND AUGMENTATION - A method of augmenting the nucleus pulposus of an intervertebral disc comprises forming a passage through an annulus fibrosus surrounding the nucleus pulposus and inserting a space creating device comprising a plurality of chambers. Without removing a portion of the nucleus pulposus, plurality of chambers are filled to expand the space creating device to create a space within the nucleus pulposus. The method further comprises injecting at least one biocompatible material into the space within the nucleus pulposus.09-03-2009
20090018663INTERVERTEBRAL IMPLANT AND ASSOCIATED METHOD - An intervertebral implant and associated method. The intervertebral implant can include a first component having a first articulating surface and a first bone engagement surface for engaging a first vertebra, and a second component having a second articulating surface and a second bone engagement surface for engaging a second vertebra adjacent to the first vertebra. The first and second articulating surfaces can articulate with each other for substantially replicating a natural spinal movement. The first and second bone engagement surfaces can define an outer surface substantially shaped as an envelope of two intersecting cylinders. In one aspect, the first and second articulating surfaces can have substantially equal radii of curvature in a coronal plane and different radii of curvature in a sagittal plane.01-15-2009
20090138086Stackable Intervertebral Devices and Methods of Use - The present application is directed to a devices and methods of spacing apart vertebral members. In one embodiment, the device includes a plurality of stackable shims that includes at least a first shim and a second shim. The first shim includes a body with a first portion of a male-female connector, and a removable guide that is attached to the body and extends along at least a portion of the body and outward beyond the body. The second shim includes a second portion of the male-female connector, and a longitudinal passage that extends through the body and is sized to receive the guide. The second shim is moveable relative to the first shim with the guide disposed in the passage between a disengaged position and an engaged position. In the engaged position, the first shim is stacked on the second shim.05-28-2009
20110257749INTERVERTEBRAL IMPLANTS HAVING HYDROMAGNETIC JOINTS - An intervertebral implant includes a first part attached to a first vertebrae, the first part including a first magnetic element having a first magnetically charged surface and a first buoyant element coupled with the first magnetic element, and a second part attached to a second vertebrae, the second part including a second magnetic element having a second magnetically charged surface that opposes the first magnetically charged surface of the first magnetic element and a second buoyant element coupled with the second magnetic element. The implant includes a fluid body, such as a liquid or gel, disposed between the first and second parts, whereby the first and second parts are in fluid communication with one another through the fluid body. A flexible enclosure extends between the first and second parts for containing the fluid body therebetween, whereby the first and second parts are moveable relative to one another.10-20-2011
20090105835Vertebral Body Replacement and Method for Spanning a Space Formed upon Removal of a Vertebral Body - A vertebral body replacement includes first and second end plates, and a compliant connector section between the end plates having one or more helical cuts to provide limited compliance between the end plates. The compliant connector section can be provided in a separate spacer that fits between the end plates or directly in one or more of the end plates. The adjoining end plate surfaces, and/or adjoining surfaces of the spacer, include a rotational interlock to inhibit allow the selection an modular stacking assembly of the vertebral body replacement to accommodate a wide range of patients.04-23-2009
20120065734INTERVERTEBRAL PLATE SYSTEM - Devices and methods are provided for assisting in spinal stabilization. An improved intervertebral plate system is provided that includes an intervertebral spacer, a curvilinear plate, a plurality of bone screws, a curvilinear cover element and a cover screw. The curvilinear plate is configured and arranged to at least inhibit the intervertebral spacer from backing out when positioned between the two vertebrae of a patient. The plate can be secured to one or more intervertebral bodies via a plurality of bone screws. The curvilinear cover element, which can have a smooth and uniform surface, can be attached to the plate. The cover element is configured to inhibit the plurality of bone screws from inadvertently backing out of the plate. The plate and/or the cover element can be substantially recessed within the intervertebral space, thereby reducing the risk of damage to tissue.03-15-2012
20110178600ELECTRONICALLY CONTROLLED ARTIFICIAL INTERVERTEBRAL DISC WITH MOTOR ASSISTED ACTUATION SYSTEMS AND AN ACTIVE CLOSED-LOOP MICROCHIP RESPONDING BY SENSORS TO VARIABLE HUMAN LOCOMOTOR ACTIVITY AND SPINAL MOTION - An electronically assisted artificial vertebral disc having an upper disc plate and a lower disc plate is disclosed. An actuator imparts movement to at least one of the upper and lower disc plates. A control device controls the actuator and the amount of movement between the disc plates. The actuator includes a plurality of either linear actuators or rotary actuators that are driven by electric motors in response to the control device. The control device includes at least a first sensor for detecting the position of the actuator and at least a second sensor for detecting the spatial orientation of at least one of the upper and lower disc plates. The control device also preferably includes a microprocessor that calculates the desired positions of the upper and lower disc plates and provides a control signal to the actuator to drive the upper and lower disc plates to their desired positions.07-21-2011
20110257751SELF-CONTAINED EXPANDABLE IMPLANT AND METHOD - Embodiments of the invention include expandable, implantable devices and methods having internally contained expansion mechanisms. Devices expand linearly to provide secure fixation between or among anatomical structures. In some embodiments, an implant replaces one or more vertebral bodies of the spine.10-20-2011
20110257752METHODS AND DEVICES FOR SPINAL DISC ANNULUS RECONSTRUCTION AND REPAIR - The present invention provides methods and devices for annulus disc repair with and without the use of a patch or stent. The methods and devices are particularly suited to the repair and/or reconstruction of the spinal disc wall (annulus) after surgical invasion or pathologic rupture, with reduced failure rate as compared to conventional surgical procedures.10-20-2011
20110257750EXPANDABLE VERTEBRAL BODY REPLACEMENT SYSTEM AND METHOD - Vertebral body replacement apparatuses, systems, and methods are provided. In various examples, an implantable device is configured to be inserted between a first vertebral body and a second vertebral body. The implantable device includes a first endplate configured to contact a superior endplate of the first vertebral body. A central member is pivotably coupled to the first endplate. A second endplate is configured to contact an inferior endplate of the second vertebral body. The implantable device includes a first insertion configuration and a second load-bearing configuration. The first insertion configuration includes the central member at a first angular position with respect to the first endplate. The second load-bearing configuration includes the central member at a second angular position with respect to the first endplate and the second endplate in a load-bearing position.10-20-2011
20110257748ARTIFICIAL SPINAL IMPLANT - One embodiment of an artificial spinal implant includes an upper positioning unit comprising a first plate member; a lower positioning unit comprising a second plate member parallel to the first plate member; and an elastic member comprising a bent first elastic half and a bent, opposite, integral second elastic half wherein upper and lower ends of each of the first and second elastic halves are formed with the upper and lower positioning units respectively. The artificial spinal implant has the benefits of not contacting the critical elements of the nervous system housed in the spinal column in surgery and dispersing load on the artificial spinal implant.10-20-2011
20090005874Compressible, rotatable, and tiltable hydraulic spinal disc prosthesis system with selectable modular components - A modular hydraulic spinal intervertebral prosthetic device offering individualized optimization of an implantable disc prosthesis by having selectable crown plates modules with differing lordosis angles and differing cross-sectional profiles, and selectable bellows cartridges having differing load-bearing capabilities. The device offers substantially full physiological degrees of motion, and by the incorporation of both a dashpot mechanism and a biasing element within reversibly displaceable and tiltable bellows provides hydraulic load bearing capability. The bellows assembly is advantageously pre-loaded to sub-atmospheric pressure. The dashpot assembly further increases resistance to lateral shear loading beyond the bellows convolutions acting alone. Rotational coupling of the upper crown plate and center bearings plate permits normal twisting movements, and spinal flexural freedom is provided by the bellows interposed between the center bearings plate and the lower end plate. The bellows also provides a hermetic seal which prevents any wear debris from migrating to the surrounding body tissue.01-01-2009
20080312744SUPPLEMENTATION OR REPLACEMENT OF A NUCLEUS PULPOSUS OF AN INTERVERTEBRAL DISC - A degenerated nucleus pulposus located in a central core region of an intervertebral disc within the annulus fibrosus is supplemented or replaced by a method wherein an amount of a biocompatible material is introduced into the central core region by a process including the steps of 1) forming a channel through a vertebral body adjacent to said intervertebral disc, extending from an exterior surface of the vertebral body to the central core region of the annulus fibrosus; 2) introducing an amount of a biocompatible material through the channel into the central core region of the annulus fibrosus; 3) pressurizing the biocompatible material through the channel to a postsurgical pressure sufficient to alleviate symptoms caused by the degenerated nucleus pulposus; and 4) sealing the channel while maintaining the sufficient postsurgical pressure. After sealing the channel, a vertebroplasty may optionally be performed in the vertebra.12-18-2008
20080249629VERTEBRAL DEFECT DEVICE - A vertebral defect device for insertion into an intervertebral space between a pair of adjacent vertebrae and for assisting in fusion between the adjacent vertebrae includes a rigid body having an distal end, a proximal end, a top, a bottom and a pair of lateral sides. The distal end is tapered in a general direction that extends between the top and the bottom of the body in order to facilitate insertion of the body into the intervertebral space. At least a first arch is proximate the top of the body and extends from the proximal end of the body toward the distal end of the body. The first arch is spaced from both lateral sides of the body. At least a second arch is proximate the bottom of the body and extends from the proximal end toward the distal end. The second arch is spaced from both lateral sides and is generally laterally aligned with the first arch for providing a rigid, generally vertical support.10-09-2008
20100324686IMPLANT - An implant for use between two axially separated vertebrae has a body extending axially between the vertebrae and having longitudinally outwardly directed ends juxtaposed with the vertebrae and each formed with a radially outwardly projecting annular rounded ridge and with a radially outwardly open groove axially inward of the ridge. A respective end plate at each of ends bears axially outwardly directly on the respective vertebra and is formed with a radially inwardly open rotation-symmetrical recess receiving the respective end of the body. This recess is formed with an annular inwardly open groove having an inner surface on which rides the respective ridge with freedom for swiveling of each end plate on the respective end.12-23-2010
20130158669Expandable Self-Anchoring Interbody Cage for Orthopedic Applications - The present invention is directed to an expandable spinal fusion intervertebral implant that provides for maintaining and creating lordosis in the human spine that can be filled with biologics while in situ to encourage spinal fusion. A threaded rod that traverses an insertion/injection handle can be rotated to operate a screw within the interbody cage that displaces opposing vertical tapped sliding wedges, causing them to converge towards each other. Such contact causes the operation of a horizontal wedge that acts as a lift to expand the interbody cage to one of various dimensions in a preferred range. At its desired expansion, the spinal fusion implant of the present invention is sized to fit within the disc space between two vertebral bodies and fill all voids left while the vertical and horizontal wedges operate within, due to the biologics being contained within the interbody cage.06-20-2013
20110054621EXPANDING INTERBODY IMPLANT AND ARTICULATING INSERTER AND METHOD - A device to space vertebral members with first and second members that may have at least one ramped section. The first and second members may be positioned in a vertically overlapping arrangement with interior sides of the members facing together. The device may be positionable between a first orientation with the ramped section of the first member positioned away from the ramped section of the second member, and a second orientation with the ramped section of the first member positioned against the ramped section of the second member. The device may include a greater height measured between the exterior sides in the second orientation than in the first orientation.03-03-2011
20110054620Prosthetic Intervertebral Discs - Prosthetic intervertebral discs, systems including such prosthetic intervertebral discs, and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components, construction, and other features of the discs.03-03-2011
20110054619Prosthetic Intervertebral Discs Having Rigid End Plates With Depressions In Their Inner Surfaces And Fibers Between Those End Plates - Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.03-03-2011
20110054618TOTAL DISC REPLACEMENT DEVICE - The total disc replacement device (03-03-2011
20130158668UNILATERAL MOVEABLE INTERBODY FUSION DEVICE AND METHOD OF USE - An interbody fusion device including a body member, at least one side member engaging the body member, and at least one movement mechanism that engages at least one side member and the body member. A surgical method for maintaining a space between two vertebral bodies in a spine, including the steps of obtaining a medical device, such as an interbody fusion device, and inserting and coupling an expansion tool into an opening within the medical device. The surgical method also including slidingly inserting the medical device into a space between two vertebral bodies and rotating the expansion tool to move the at least one side member in a direction relative to the body member. The method may further include detaching the expansion tool from the medical device and removing the tool from the space between the two vertebral bodies in the spine.06-20-2013
20130158666FACET FUSION SYSTEM - A facet fusion system including a first drill guide, a second drill guide and a facet fusion implant. The first drill guide has a first aperture formed therein. The second drill guide has a second aperture formed therein. A position of the first aperture on the first drill guide is offset from a position of the second aperture on the second drill guide. The facet fusion implant has at least one gripping region and at least one bone growth region. The at least one bone growth region has a diameter that is larger than a diameter of the first aperture and the second aperture.06-20-2013
20100331987RADIALLY COMPRESSED DEHYDRATED SPINAL NUCLEUS IMPLANTS - A radially compressed xerogel spinal nucleus implant is manufactured and utilized for implantation into an intervertebral disc space. The implant has an optimized cross-sectional ellipsoid configuration which facilitates insertion of the implant through a minimal incision in the annulus. Radial compression is achieved by exerting substantially equilateral circumferential compression on an object contained within a radially collapsible member for exerting substantially equilateral circumferential compression on the object. Radial compression may also be achieved by exerting substantially equilateral circumferential compression force on a spinal nucleus implant via gas pressure in a sealed chamber.12-30-2010
20100331988Instruments and Method For Inserting An Intervertebral Implant - Instruments and methods for inserting an intervertebral implant. Insertion of the implant is accomplished by grasping the implant between the arms of an insertion instrument having arms which separate from each other and close against each other onto the implant, such that the ends of the arms of the insertion instrument engage recesses of the implant. A spacer may be provided between the arms of the insertion instrument to help position the implant while held by the arms.12-30-2010
20110264223SELF-ADJUSTING AND SELF-STABILIZING INTERVERTEBRAL DISC PROTHESIS - The present invention relates to an intervertebral disc prosthesis (10-27-2011
20100292801Artificial Disc - An intervertebral artificial disc is provided with a first endplate having a plurality of protrusions for attaching to an adjacent vertebrae and an extension portion extending towards a second adjacent vertebrae. A second endplate is provided with a plurality of protrusions for attaching to a second adjacent vertebrae and an extension portion extending towards the first adjacent vertebrae. A flexible member having an upper portion and a lower portion and a slider plate positioned within the upper portion of the flexible member is also provided. The extension portion of the first endplate is adapted to fit within a first cavity in the upper portion of the flexible member and the extension portion of the second endplate is adapted to fit within a second cavity in the lower portion of the flexible member.11-18-2010
20100292800INTERVERTEBRAL DISC IMPLANTS AND TOOLING - A kit for preparing an intervertebral disc space for receiving an implant (11-18-2010
20110125270Prosthetic Spinal Disc Replacement - The present invention relates generally to a prosthetic spinal disc for replacing a damaged disc between two vertebrae of a spine. The present invention also relates to a method for implanting a prosthetic spinal disc via posterior or posterior lateral implantation. Other surgical approaches for implanting the prosthetic disc may also be used. The present invention also involves a method for implanting the prosthetic spinal disc while either avoiding or minimizing contact with the spinal cord and nerve rootlets, or reducing the time and extent that they need to be repositioned during implantation.05-26-2011
20110125271METHOD OF PERFORMING AN ANCHOR IMPLANTATION PROCEDURE WITHIN A DISC - Methods of performing procedures within an intervertebral disc are disclosed. The methods include performing procedures such as implant delivery, tissue manipulation, tissue diagnostics, and therapeutic and diagnostic agent delivery at selected locations within intervertebral discs. In one embodiment, a method includes delivering an anchor and an implant within a functional spinal unit using a surgical device having at least one depth stop.05-26-2011
20110137421Transforaminal Prosthetic Spinal Disc Apparatus - An intervertebral prosthetic implant having a first endplate having a first surface configured to substantially engage with a first vertebral body and a second surface having an extension with a concave contact surface, the concave contact surface being spaced apart from the second surface. A second endplate is provided with a first surface configured to substantially engage with a second vertebral body and a second surface comprising a convex contact surface, and the second endplate having a securing element positioned along and above the second surface defining a first and second window on opposing sides of the second surface. The securing element extends along the width and length of the lower endplate and configured with an access hole. An extension portion extends from the first surface of the first endplate through the access hole of the securing element and contacts the second surface of the second endplate.06-09-2011
20100324689IMPLANT COMPRISING THERMOPLASTIC ELASTOMER - The invention relates to an artificial spinal implant comprising a thermoplastic elastomer comprising a hard phase and soft phase, wherein the hard phase comprises a polymer chosen from the group consisting of polyester, polyamide, polystyrene, polyacrylate and polyolefin and the soft phase comprises a polymer chosen from the group consisting of polyether, polyester, polyacrylate, polyolefin and polysiloxane.12-23-2010
20110046743Minimally Invasive Interbody Device - An interbody device that restores the disc space height between two vertebrae during spinal fusion surgery. The device includes a center plate surrounded by a perimeter portion that combine to have a relatively flat configuration in one dimension and relatively wide configuration in a perpendicular dimension. After the disc space has been cleared, the device is inserted into the disc space in a direction so that the wide dimension of the device is substantially parallel to the body of the vertebrae. The device is then rotated so that the wide dimension of the device becomes perpendicular to the vertebral body so as to cause the disc space height to be restored. Bone graft material is then introduced through a fill tube coupled to the device so that the bone graft material is distributed on both sides of the center plate and into the disc space.02-24-2011
20100121454METHOD OF IMPLANTING INTERVERTEBRAL DISK PROSTHESIS - Embodiments disclosed herein provide a method of implanting an intervertebral disk prosthesis that can be assembled and disassembled in a minimally invasive fashion. The prosthesis comprises a first fixing element having an anchoring first face and a co-operation second face; a second fixing element having an anchoring first face and a co-operation second face; a first prosthesis element having an active first face and a co-operation second face, the co-operation faces of the first fixing element and the first prosthesis element serving to fasten the two elements together; a second prosthesis element having an active first face and a co-operation second face, the co-operation faces of the second fixing element and the second prosthesis element serving to fasten the two elements together; and each of the active faces of the prosthesis elements defining at least a portion of a spherical cap that is respectively concave or convex.05-13-2010
20110098821Transforaminal Prosthetic Spinal Disc Replacement and Methods Thereof - The present invention relates generally to a prosthetic spinal disc for replacing a damaged disc between two vertebrae of a spine and methods for inserting said discs. The present invention also relates to prosthetic spinal disc designs that are implanted using a transforaminal approach, methods thereof, and apparatus thereof.04-28-2011
20110082555Transforaminal Lumbar Interbody Fusion (TLIF) Implant, Surgical Procedure and Instruments for Insertion of Spinal Implant in a Spinal Disc Space - Various instrumentation, implants and methodology are disclosed for implanting bone implants in the TLIF approach. The implants are preferably cortical bone of various shapes. The instruments include chisels, rasps, trials, inserters, spreaders, adjustors, curettes, rongeurs, and impactors. The instruments have straight and bent shafts. The implants may have recesses or notches in their sides for receipt of a mating insertion instrument. Some of the implants have a threaded hole for receiving a mating threaded stud of an implant insertion instrument. The implants may have saw tooth vertebral gripping surfaces which are lordotic or parallel, may be C-shaped, multi-faceted or annular.04-07-2011
20110087329LUMBAR IMPLANT - The present disclosure relates to an intervertebral disc prostheses or implant, and more particularly to an intervertebral disc prosthesis that can be surgically introduced between adjacent vertebral bodies and adjusted or expanded in situ to occupy an optimal or desired space between the vertebral bodies. The implant is preferably inserted into the evacuated disc space obliquely and then oriented so as to extend laterally across the anterior adjacent vertebrae bodies occupying the disc space with the outer ends of the implant being supported by the cortical rims on the opposite sides of the vertebrae bodies. The outer convex surfaces of the two body members conform anatomically to the shape of the disc space contacting the endplates. The implant has two body members that are movable relative to one another so as to vary the space between the members. With the implant so positioned and oriented, the disc space and the implant may be then distracted and a spacer of a desired, predetermined thickness may be inserted within the space between the body members so as to maintain a desired amount of distraction. A method of using an implant is also disclosed.04-14-2011
20110087331ARTICULATING DISC IMPLANT - An intervertebral disc implant for use in the spine including a first part (04-14-2011
20110087330Vertebral Implant Containment Device and Methods of Use - A containment device is inserted between vertebral members in a patient and provides a rapid implant solution adapted for use in different applications. The device includes an interior volume to contain a curable substance at substantially atmospheric pressure. Upon filling the enclosure member with a curable substance, the enclosure member is able to conform to and maintain a space between vertebral members. The containment device may include an enclosure member constructed of an impermeable material adapted to constrain migration of the curable substance. The enclosure member may include an exterior wall surrounding the interior volume and an opening in the exterior wall that exposes the interior volume. The containment device may include end members that may be distracted to establish a desired vertebral spacing. Spacer members may be included to further maintain the desired spacing. Upon hardening of the curable substance, the device is capable of maintaining the desired spacing.04-14-2011
20120310355APPARATUS AND METHODS FOR VERTEBRAL AUGMENTATION USING LINKED EXPANDABLE BODIES - Implants and methods for osteopathic augmentation and repositioning of vertebrae may comprise a chain having one or more beads or bodies configured for insertion into a vertebral body. The one or more bodies may be expandable. As the chain is inserted into the vertebral body, it may fill a central portion thereof and can push against the inner sides of the endplates of the vertebral body, thereby providing structural support and tending to restore the vertebral body to its original height. The one or more bodies may have a first configuration dimensioned to pass through a catheter or other introducer, and may expand to a second, larger configuration after insertion into the bone in order to secure the chain within the bone.12-06-2012
20120310352IN-SITU INTERVERTEBRAL FUSION DEVICE AND METHOD - An orthopedic device for implanting between adjacent vertebrae comprising: an arcuate balloon and a hardenable material within said balloon.12-06-2012
20120310351LORDOTIC SPACER - A spacer includes a distal end and a proximal end. The spacer also includes top and bottom surfaces spaced by first and second sides. The top and bottom surfaces define a height, and the sides define a width. The height generally increases distally and from the second side to the first side. The top and bottom surfaces are curved, and include multiple radii of curvature. A lateral curvature is defined as the curvature along the top or bottom surface at a given point along the length of the spacer, taken along a plane extending between the first and second sides and generally perpendicular to the sides. The radius of the lateral curvature for at least one of the top and bottom sides varies along the length of the spacer. For example, the radius of curvature may generally increase distally along the length of the spacer.12-06-2012
20120310350UNIDIRECTIONAL DYNAMIC INTERBODY FUSION DEVICE AND METHOD OF USE - Unidirectional dynamic interbody fusion devices and methods of use for insertion into a patient in order to maintain a space between two vertebral bodies. A first interbody fusion device including a body member, at least one side member, and a means for moving the at least one side member relative to the central body member. A second interbody fusion device including a base member, a top member, and a means for moving the top member relative to the base member. A surgical method for maintaining a space between two vertebral bodies in a spine, including obtaining a medical device, inserting and coupling an expansion tool into an opening within the medical device, slidingly inserting the medical device into a space between two vertebral bodies; and rotating the expansion tool to move the at least one side member in a direction relative to the body member.12-06-2012
20120310349EXPANDABLE ARTICULATING INTERVERTEBRAL IMPLANT WITH LIMITED ARTICULATION - An artificial functional spinal unit including an expandable intervertebral implant that can be inserted via a posterior surgical approach and used with one or more facet replacement devices to provide an anatomically correct range of motion is described. Lordotic and non-lordotic expandable, articulating implants and cages are described, along with embodiments of facet replacement devices and instruments for insertion. Methods of insertion are also described.12-06-2012
20120310348BONE GRAFTS - Spinal spacers 12-06-2012
20100082110INTERVERTEBRAL DISC PROSTHESIS - The invention relates to an intervertebral disk prosthesis including a lower element consisting of a lower prosthetic plate and an insert defining a convex spherical cap-shaped surface and adapted to be fitted in the prosthetic plate. The prosthetic plate includes a housing having a bottom and a peripheral rim interrupted by an opening for inserting the insert, the insert having a base adapted to be placed in the housing. The insert and the prosthetic plate include a first fastening means for fastening together in a direction OZ perpendicular to the bottom of the housing the plate and the insertion end of the insert, and a second fastening means including a non-immobile fastening member disposed in the insertion opening and adapted to cooperate with a complementary member of the insert to fasten together in the direction OZ the second end of the insert and the plate.04-01-2010
20100191335SPINAL NUCLEUS PROSTHESIS DEVICE - An implantable prosthesis device is disclosed. The prosthesis device comprises one or more compartments bounded by a substantially closed porous envelope made at least in part of non-woven polymer fibers, and a filler structure at least partially filling the compartment(s) and being made, at least in part, of non-woven swellable polymer fibers.07-29-2010
20090292363INTERVERTEBRAL PROSTHESIS - A prosthesis for replacing a native disc between first and second adjacent vertebral bodies. The prosthesis includes a compliant element having a first composition and a geometry for providing a plurality of element stiffnesses for the compliant element substantially matching spatial stiffnesses of the native disc. The prosthesis also includes an upper plate of the first or a second composition, the upper plate having opposed inner and outer surfaces, the upper plate inner surface having a first retaining structure for affixing a position of the first end of the compliant element, and a lower plate of the first or a second composition, the lower plate having opposed inner and outer surfaces, the lower plate inner surface having a second retaining structure for affixing a position of the second end of the compliant element.11-26-2009
20110190890END CAP FOR A VERTEBRAL IMPLANT - An implant for insertion between adjacent vertebral members, comprising an implant body with a base section having positioning teeth, and an end cap for positioning at a selected point on the base section via adjustment of an approach direction. The end cap comprises a seating surface which contacts the base section when positioned on the implant body, an end cap angulation, and positioning passages for receiving positioning teeth. The implant may comprise a locking mechanism for lockingly engaging the end cap and base section and preventing end cap axial movement. The positioning passages and positioning teeth configured to facilitate end cap slideable positioning on the base section. And, a positioning passage comprising a locking tenon for lockingly engaging a positioning tooth in the positioning passage. The implant body and end cap combination imparting angulation to an adjacent vertebral body at the selected point when positioned in the intervertebral space.08-04-2011
20110190893INTERVERTEBRAL DISC TREATMENT METHODS AND APPARATUS - Instrumentation and methods facilitate reconstruction of the anulus fibrosus (AF) and the nucleus pulposus (NP). An intra-aperture component is dimensioned for positioning within a defect in the AF, with one or more components being used to maintain the intra-aperture component in position. The intra-aperture component may be porous and flexible while being intentionally non-expandable in cross section following its positioning within the defect. A component used to maintain the intra-aperture component within the defect includes a flexible longitudinal fixation component that passes through the intra-aperture component and a region of the AF apart from the defect. If available, this may be a region of the AF having overlapping layers with intact fibers in different directions. The flexible longitudinal fixation component may be anchored to one of the upper and lower vertebral bodies.08-04-2011
20110190896APPARATUS FOR ENHANCED DELIVERY OF TREATMENT DEVICE TO THE INTERVERTEBRAL DISC ANNULUS - The present invention provides methods and devices for enhancing the delivery of treatment devices for treating the annulus of an intervertebral disc. The methods and devices may employ delivery support elements to delivery tools used to deliver expandable treatment devices to the intervertebral disc. Fixation devices and methods are also disclosed, which may help to secure the treatment device in place.08-04-2011
20110190895Mechanical Apparatus and Method for Artificial Disc Replacement - The present invention relates to a device and method to 1) facilitate disk fusion, 2) perform an artificial replacement of the nucleus, 3) perform an artificial replacement of the annulus, or 4, perform an artificial replacement of both the nucleus and annulus. The device is designed to be placed into the inter-vertebral space following discectomy. The invention includes a delivery catheter and an expandable continuous mesh loop that has a torus configuration with a lumen within the mesh and a central hole. The mesh loop can be diametrically increased or contracted in diameter by the control element acting on the mesh loop. The mesh loop may be formed of a woven or braided material from a polymer such as PEEK (polyetheretherketone), nylon, polyurethane, polyester, polyethylene, polypropylene or any other biocompatible polymer, or formed from a metallic braid of stainless steel, Elgiloy, Nitinol, or any other biocompatible metal.08-04-2011
20110190894Mechanical Apparatus and Method for Artificial Disc Replacement - The present invention relates to a device and method to 1) facilitate disk fusion, 2) perform an artificial replacement of the nucleus, 3) perform an artificial replacement of the annulus, or 4, perform an artificial replacement of both the nucleus and annulus. The device is designed to be placed into the inter-vertebral space following discectomy. The invention includes a delivery catheter and an expandable continuous mesh loop that has a torus configuration with a lumen within the mesh and a central hole. The mesh loop can be diametrically increased or contracted in diameter by the control element acting on the mesh loop. The mesh loop maybe formed of a woven or braided material from a polymer such as PEEK (polyetheretherketone), nylon, polyurethane, polyester, polyethylene, polypropylene or any other biocompatible polymer, or formed from a metallic braid of stainless steel, Elgiloy, Nitinol, or any other biocompatible metal.08-04-2011
20110153020Anterior Lumbar Interbody - A system having an expandable intervertebral fusion implant assembly for insertion between two vertebrae bodies. The system includes an anterior lumbar interbody component having an upper component and a lower component, each having an inner and outer surface, pivotally connected through a hinge. A distracting component includes a wedge having a superior and inferior surface that inserts between the upper and lower components of the anterior lumbar interbody component. The outer surface of the upper and the lower component contact endplates of two adjacent vertebral bodies.06-23-2011
20110190889LORDOTIC INTERBODY DEVICE WITH DIFFERENT SIZES RAILS - A vertebral implant for installation in a disc space is disclosed that includes a body defining a first vertebral support rail and a second vertebral support rail extending along a vertical axis. Each vertebral support rail is separated by a channel running circumferentially around at least a portion of the body along a longitudinal axis of the body. The first vertebral support rail has a first height and the second vertebral support rail has a second height. The first height is smaller than the second height. The height or apex of each vertebral support rail is sized and configured to match the concave nature of the endplates of vertebra of the spine.08-04-2011
20110190892SPINAL IMPLANT CO-INSERTION SYSTEM AND METHOD - A system and method for substantially simultaneous co-insertion of an implant, such as a cage and plate. An inserter is secured to the cage and plate and is used to hold the components while implanting the components during a surgical procedure.08-04-2011
20110190891Device for Stabilizing a Vertebral Joint and Method for Anterior Insertion Thereof - A prosthetic device can be used as a prosthesis following a discectomy or a corpectomy. The prosthetic device includes two endplates with staggered motion limiting members. The device can be configured to allow six degrees of motion when comparing one endplate relative to the other. The endplates can be configured to fix the joint by changing the body held within the device and by adding a locking plate and fasteners. A method teaches how to insert a device to an intervertebral space via an anterior incision.08-04-2011
20100030338PROSTHESIS FOR NUCLEUS OR INTER-VERTEBRAL DISC REPLACEMENT - The invention relates to a nucleus or inter-vertebral disc prosthesis that comprises at least two plates capable of movement relative to each other through at least one articulation interface defined by a female surface and a male surface each having an essentially spherical shape and essentially equal diameters. The two articulation surfaces are respectively intersected by surfaces that define between them a relative mobility space for the plates when the articulation surfaces are coapted; the surface intersecting the female surface being contained in the volume defined by an equatorial plane of said sphere except for said equatorial plane itself, the surface intersecting the male surface being planar or convex.02-04-2010
20100030337Spine Surgery Technique And System - A system and method for use in spinal surgery to alleviate a bulging/herniated disc. The method comprises inserting a first cannula into a vertebra, and inserting a first anchor into the first cannula through the vertebra and into a disc, the first anchor generating a magnetic field pointing in a first direction. The method further comprises inserting a second anchor through the first cannula and through the vertebra, the second anchor generating a magnetic field pointing in the first direction, the second anchor including a second cannula; and pulling the second cannula to anchor the second anchor into the vertebra. As the magnetic fields are in the same direction, the first anchor repels the second anchor thereby pushing a bulging disc back in place.02-04-2010
20100030336SPINAL DISC PROSTHESIS AND INSTRUMENTS - Described is an articulating intervertebral disc prosthesis including a first member having a vertebra engaging portion and a bearing surface; a second member having a vertebra engaging portion and a bearing surface, which in use abuts the first member bearing surface to form a first bearing joint, —and motion restraint means adapted to provide ax-ticulation restraint of the bearing joints at predetermined limits of articulation similar to the natural motion restraint of a facet joint; wherein the prosthesis is longitudinally-split into two bodies so that the two bodies can be laterally separated, each body having an articulating bearing joint. Preferably, the second member bearing surface is shaped to include at least a portion of a first substantially circular curve when viewed in a first section, and at least a portion of a second substantially circular curve when viewed in a second section, said first and second curves being of respectively different sizes of circle. Further described is a chisel and a chisel guide for preparing the disc space for implantation.02-04-2010
20120150300INTER-VERTEBRAL-BODY SPACER - An inter-vertebral-body (IVB) spacer may include a skeletal body and a pair of interchangeable contact pads. The skeletal body may be made of a rigid material for providing structure support, and the pair of contact pads may be made of a softer material for contacting the endplates of the vertebral bodies. Advantageously, the IVB spacer may be strong enough to withstand the pressure applied between the vertebral bodies yet soft enough to protect the vertebral bodies from being eroded. Moreover, the IVB spacer may have an inter-pad angle, which may be adjusted to adapt to patients with various vertebral bone structures. The inter-pad angle of the IVB spacer may be adjusted by simply selecting and replacing one of the contact pads.06-14-2012
20110218633DEVICES AND TECHNIQUES FOR A POSTERIOR LATERAL DISC SPACE APPROACH - This invention relates to devices and instruments for implant insertion through a posterior lateral opening to the disc space. The instruments include an implant inserter, and the devices include a spinal fusion implant engageable by the implant inserter. The implant provides bilateral support of the adjacent vertebrae when inserted into the disc space from a postero-lateral approach.09-08-2011
20110218630INTERVERTEBRAL DISC ENDOPROSTHESIS - An intervertebral disc endoprosthesis for implantation in the spinal column, with an upper end plate and a lower end plate for securing respectively to the bones of the vertebral body, and with a slide bearing which is arranged between the end plates and is composed of slide bodies that are designed to slide on each other. both end plates are made of plastic and the slide bodies are made of ceramic, the slide bodies are encapsulated by the plastic of the end plates and the surface areas of the slide bodies encapsulated by the plastic of the end plates have surface area enlargements by comparison with flat surfaces. To ensure that the slide bodies are connected fixedly to the end plates in a manner secure against twisting, it is proposed that the surface area enlargements are elevations or depressions on the slide bodies.09-08-2011
20100016974SYSTEMS AND METHODS FOR SECURING AN IMPLANT IN INTERVERTEBRAL SPACE - An intervertebral disc implant with upper and lower bearing members with an articulation interface between the members for providing relative motion therebetween. In one form, a securing member with an elongate shaft and a bone-engaging member on the shaft is disposed on one of the bearing members. The bone-engaging member is deployable into a bone-engaging position via rotational displacement of the shaft. In another form, a bone-engaging member is deployable via an actuator inserted into the implant body. In another form, the securing member secures an intervertebral implant in intervertebral space via deformation of the securing member causing a bone-engaging member of the securing member to be deployed into contact with an adjacent vertebra.01-21-2010
20100016972Artificial Intervertebral Disc Placement System - An intervertebral disc placement system includes a multi part intervertebral disc, such as a mobile core disc, and an associated placement instrument. The placement instrument holds the disc securely with the disc endplates angled for ease of placement of the disc into an intervertebral disc space and quickly releases the implant within the disc space. The disc includes upper and lower plates having notches in inner surfaces for engagement of the placement instrument. The placement instrument has a rotatable key configured to fit into the first and second notches to grasp the disc from the interior and eliminate the need for an external grasping mechanism which could interfere with disc placement.01-21-2010
20100016973Posterior Prosthetic Intervertebral Disc - A prosthetic intervertebral disc is formed of first and second end plates sized and shaped to fit within an intervertebral space and to be implanted from the back of the patient, thereby decreasing the invasiveness of the procedure. The posterior approach provides for a smaller posterior surgical incision and avoids important blood vessels located anterior to the spine particularly for lumbar disc replacements. The first and second plates are each formed of first, second and third parts are arranged in a first configuration in which the parts are axially aligned to form a low profile device appropriate for insertion through the small opening available in the TLIF or PLIF approaches described above. The three parts of both of the plates rotate and translate with respect to one another in situ to a second configuration or a deployed configuration in which the parts are axially unaligned with each other to provide a maximum coverage of the vertebral end plates for a minimum of insertion profile. Upon deployment of the disc, a height of the disc is increased.01-21-2010
20090005873Spinous Process Spacer Hammock - An interspinous spacer comprising: 01-01-2009
20110118845FLEXIBLE DAMPENING INTERVERTEBRAL SPACER DEVICE - A flexible dampening intervertebral spacer (05-19-2011
20110118844METHODS OF REPAIRING HERNIATED SEGMENTS IN THE DISC - Systems for minimally invasive disc augmentation include an anulus augmentation component and a nucleus augmentation component. Both are suited for minimally invasive deployment. The nucleus augmentation component restores disc height and/or replaces missing nucleus pulposus. The anulus augmentation component shields weakened regions of the anulus fibrosis and/or resists escape of natural nucleus pulposus and/or the augmentation component. Methods and deployment devices are also disclosed. Method of supporting and augmenting a nucleus pulposus by inserting a flexible biocompatible material into the disc space using an anchoring means are also provided.05-19-2011
20100070036EXTENDABLE INTERVERTEBRAL DISC PROSTHESIS SYSTEM - The present invention generally relates to an extendable intervertebral disc prosthesis system and assemblies thereof. A prosthesis system of certain embodiments includes a superior and inferior endplate assembly as well as an inner core disposed therebetween. Each endplate assembly includes two plates that slide relative to one another longitudinally such that the endplate assembly moves from an unextended position having a first width to an extended position having a second width greater than the first width. The present invention also provides a telescoping intervertebral disc prosthesis system. Additionally, the present invention provides methods for implanting extendable intervertebral disc prosthesis systems and their assemblies. The present invention also provides a kit for implanting an extendable intervertebral disc prosthesis system, including an insertion tool and an extendable intervertebral disc prosthesis system.03-18-2010
20110307064Methods Of Distracting Tissue Layers Of The Human Spine - Methods of separating and/or supporting layers of tissue in the human spine. Such methods generally comprise inserting at least a distal end portion of a guide member between layers of tissue in the human spine wherein the distal end portion defines a predetermined shape. A distraction device is advanced over at least the distal end portion of the guide member so that the distraction device substantially assumes the predetermined shape of the distal end portion of the guide member to form a support structure between the tissue layers that separates and/or supports the tissue layers.12-15-2011
20110307065ADJUSTABLE VERTEBRAL SPACER FOR VERTEBRAL RECONSTRUCTION - An adjustable vertebral spacer includes a spacer body, a movable member coupled to the spacer body, an adjustment ring mounted on the spacer body and rotatable to move the movable member and to further adjust the combined height of the spacer body and the movable member, a lock ring mounted on the spacer body for locking the movable member to the adjustment ring, and a top endplate coupled to the movable member at the top and tiltable to fit the angle of the adjacent upper vertebral body during surgery operation.12-15-2011
20110307066Spacer with Height and Angle Adjustments for Spacing Vertebral Members - A device to space vertebral members that may include a deploying device with a first member with an elongated first shaft and a first body at an end of the first shaft, a second member with an elongated second shaft that extends around the first shaft and a second body at an end of the second shaft, and a third member with an elongated third shaft that extends around the second shaft and a third body at an end of the second shaft. The device may include a first plate positioned on a first side of the deploying device, and a second plate positioned on a second side of the deploying device. First, second, and third jointed linkages may be spaced apart along the deploying device and each having a pair of links and each having a first end attached to the first plate, a second end attached to the second plate, and an intermediate joint connecting the pair of links together and being attached to the deploying device.12-15-2011
20110307063Spinal Tissue Distraction Devices - Spinal tissue distraction devices that include at least one guide member for guiding a distraction device to a location between layers of spinal tissue. The guide member has a proximal end portion and a distal end portion. The distal end portion is adapted for insertion between the tissue layers and defines a shape of a desired support structure. The distraction device is slidably mounted on the guide member for advancing the distraction device distally along the guide member for insertion of the distraction device between the tissue layers. The distraction device substantially conforms to the shape defined by the distal end portion of the guide member to form a support structure that separates, supports or both separates and supports the tissue layers.12-15-2011
20120041562Remotely Activated Piezoelectric Pump for Delivery of Biological Agents to the Intervertebral Disc and Spine - A remotely activated piezoelectric pump for delivery of biological agents to the intervertebral disc and spine in order to achieve spinal fusion. A spinal pump is implanted on the vertebrae of a patient and a spinal cage is inserted in between two adjacent vertebrae after removal of the vertebrae disc. A piezoelectric motor drives the pump and pushes osteogenetic agent through the spinal cage and into a sponge disposed within the cage. The pump is charged by an external removable induction belt worn by the patient. Delivery duration and delivery frequency may be changed before implantation of the spine pump according to the specific needs of the patient. The current device employs a mathematical model that enables the regulation as well as attenuation of the bone fusion process by extending and generalizing the model to enhance and optimize the delivery of osteogenetic agent in a regulated manner.02-16-2012
20120041561INTERVERTEBRAL DEVICE HAVING EXPANDABLE ENDPLATES - An intervertebral implant having an endplate that can be slidably expanded following its placement in the intervertebral space.02-16-2012
20110009971Apparatus and Kit for Distraction of Tissue Surfaces - An apparatus and method for distracting, in a given direction, and supporting two tissue surfaces. A plurality of wafers are consecutively inserted between the two tissue surfaces to create a column of wafers. The column of wafers is oriented between the tissue surfaces so as to expand in the given direction as the wafers are consecutively added to the column.01-13-2011
20110071639METHOD AND DEVICE FOR TREATMENT OF THE SPINE - A device and method of positioning materials in a spine using an arcuate tool and introducer. Materials may be positioned as desired, such as against an inner annular wall of an intervertebral disc or vertebral body. The arcuate tool retains its predetermined arcuate shape when no pressure or force is applied to the tool, and is positioned by manipulating the tool relative to an introducer and the spine, with the introducer manipulated relative to the spine.03-24-2011
20110071638INTERVERTEBRAL DISK PROSTHESIS AND METHOD - Described herein is an intervertebral disk prosthesis with an angled leading edge for insertion into the Intervertebral space. The disk prosthesis may provide for both rotation and compression.03-24-2011
20110071637SYSTEM AND METHODS FOR INSERTING A VERTEBRAL SPACER - The present invention provides vertebral spacers having a lower surface and an upper surface, an anterior face and a posterior face extending from the lower surface, and at least one guiding groove for engaging an insertion tool. A system for delivering a vertebral spacer to the spinal column of a patient, includes an insertion tool, an optional guiding tool, a pusher, a vertebral spacer, and a cutting tool. The insertion tool accepts any of a pusher, a vertebral spacer, or a cutting tool and has at least one spacer guide for engaging with a guiding groove of a vertebral spacer. The vertebral spacer is inserted into a patient by inserting the insertion tool into an intervertebral space, engaging the guiding groove of a vertebral spacer with a space guide of the insertion tool, advancing a pusher into the insertion tool, thereby pushing the vertebral spacer into the intervertebral space and thereafter removing the pusher and the insertion tool. The cutting tool is optionally used to chisel at least one vertebral space receiving slot in the vertebrae. A hardening biocompatible composition also maybe delivered, to bond the vertebral spacer to an adjacent vertebra or be an osteogenic composition to promote bone growth.03-24-2011
20120150303SPINE SUPPORT IMPLANT INCLUDING INTER VERTEBRAL INSERTABLE FLUID BALLASTABLE INSERT AND INTER-VERTEBRAL WEB RETAINING HARNESSES - An implant support device associated with succeeding spinal vertebrae, including a harness exhibiting a plurality of legs, each extending from a rotatable bearing or suitable interconnecting support. Each of the legs terminates in an angled tang, this being engaged with a surface of a selected vertebrae. Additional features include undercut portions defined between the legs and arcuate/hemispherical mounting locations surrounding the bearing in individually rotatably permitting fashion. Inter-vertebral support cushions are also positioned between succeeding vertebrae, and can be incorporated with or provided separately from the web support harnesses.06-14-2012
20120150302INTERBODY IMPLANT - An interbody implant (06-14-2012
20110029085FLEXIBLE SPINAL IMPLANT - A flexible spinal implant for insertion into an intervertebral disc space for sagittal and/or coronal intervertebral stabilization is provided comprising a flexible implant which enables bending of the flexible implant to facilitate insertion of the flexible spinal implant into the disc space via a spinal surgical procedure. The flexible spinal implant comprises a leading end, a trailing end flexibly connected to the leading end, a locking mechanism, wherein the implant is deformable at or about a flexible section to thereby permit a substantially straight entry of the implant into the disc space, and delivered to the selected disc space at a desired insertion angle of approach via a spinal surgical procedure. The implant can have a leading end comprising a curved or bullet shaped configuration, and the flexible section may be comprised of a flexible material or flexible sections which may be lockingly engaged.02-03-2011
20100262245Intervertebral spacer - Disclosed is a delivery system for an intervertebral spacer and a bone grafting material in the form of a unitary device which comprises a spacer disengagingly attached to a hollow handle. The handle comprises a chamber and bone grafting material-advancing means within the chamber for introducing the bone grafting material from the chamber into and around the spacer and the intervertebral spaces. The handle is disengageable from the spacer after serving its purpose of facilitating placement of the spacer and the discharge of the bone grafting material into the spacer and the intervertebral space.10-14-2010
20120046750SPINAL FUSION CAGE - The invention is directed to a spinal fusion cage for implantation between two adjacent vertebrae, wherein the total cage has, under a load, a maximum compression that is higher than 0.05% of the original height of the spinal fusion cage and the maximum compression does not change the structural integrity of the cage.02-23-2012
20120046751VERTEBRAL BODY REPLACEMENT AND METHOD OF USE - Vertebral body replacements are provided, including at least one vertebral body replacement in the shape of an oblong object. The oblong vertebral body replacement includes a nose shape to provide as minimally invasive an installation as possible, serrations formed in the side wall of the body replacement's body to prevent expulsion once the body replacement is in place, a tapered asymmetric shape to provide spinal lordosis, and an integral protrusion for stability and to increase the bearing area to reduce contact pressure between the body replacement and the vertebral plate. Hollow passages are typically filled with bone tissue. The body is also provided with holes passing therethrough to promote tissue growth.02-23-2012
20120046749INTERSPINOUS SPACER AND FACET JOINT FIXATION DEVICE - A biologically implantable device including a spacer body and fasteners for fixing the spacer body in place between vertebrae, and a method for use of the device to improve intervertebral spacing and correct foraminal stenosis, and to immobilize facet joints and promote fusion of adjacent vertebrae to each other. A drill guide may be used in providing bores in the facet joints to receive the fasteners.02-23-2012
20120046748Expandable Intervertebral Spacer and Method of Posterior Insertion Thereof - An expandable intervertebral spacer has a plurality of arms. The arms can be retracted or extended. The spacer has a width that is narrower than the width between the nerve roots near the posterior approach to an intervertebral space. Once inserted into the intervertebral space, the arms can be deployed. The deployed arms expand the height and width of the spacer. Once deployed, the spacer stabilizes two adjacent vertebrae. The arms are interconnected mechanically to deploy simultaneously.02-23-2012
20120004731DEPLOYABLE SEGMENTED TLIF DEVICE - A segmented intervertebral body fusion support includes a plurality of segments, the segments including an initial segment, a final segment and at least one intermediate segment. The intermediate segment has a generally trapezoidal configuration and the initial and final segments include tapered side walls providing triangular gaps between adjacent segments. A draw wire is fixed to the first segment and passes through the remaining segments. By pulling the draw wire relative to the segments, the segments are drawn together in a generally arcuate configuration. The draw wire includes an enlargement that passes through the final segment and engages a plurality of fingers on the final segment, which prevents the draw wire from retracting, maintaining the arcuate configuration. The segmented device can be inserted through a laparoscopic device into the intervertebral space and can be subsequently drawn into the arcuate configuration to establish the desired intervertebral spacing.01-05-2012
20120004732Minimally Invasive Collapsible Cage - An articulating fusible support cage comprises a first support member having a first and second end and a second support member having a first and second end. A first end cap is pivotally connected to the first and second support members at the first ends. The first end cap supports a jackscrew for rotation. A second end cap is pivotally connected to the first and second support members at the second ends opposite the first ends. The second end cap has a threaded sleeve configured to engage a portion of the jackscrew. Rotation of the jackscrew into the threaded sleeve causes the first and second support members to extend outwardly from a collapsed condition to a deployed condition.01-05-2012
20120004730End cap and connector for a spinal implant - The present invention is a spinal implant that can be inserted into a surgically created cavity of one or more regions of the mammalian spine. Among other things, the biocompatible implant and end cap or biocompatible implant, connector and end cap combinations can assist with the restoration of the normal anatomic spinal alignment and spinal stability.01-05-2012
20120065735ANNULUS REPAIR SYSTEMS AND TECHNIQUES - Systems and methods for repairing annulus defects include at least one blocking member positionable in or adjacent to the annulus defect, at least one attachment portion for securing the blocking member to adjacent tissue, and instruments for placing and engaging the blocking member in and/or adjacent to the annulus defect. The blocking member extends at least partially across the annulus defect for repair of the defect and/or retention of nucleus material, one or more implants, bio-compatible materials or device, and/or other objects positioned in the disc space.03-15-2012
20120232660Expandable Trial Assembly For Expandable Vertebral Implant - The present invention relates to a method of inserting an implant comprising providing a trial assembly. The method may further comprise positioning the trial assembly between vertebrae in a patient. The method may further comprise rotating a drive shaft of the trial assembly to cause upper and lower gear members of the trial assembly to rotate causing expansion of a tip assembly of the trial assembly. The method may further comprise measuring expansion of the trial assembly with a scale at a proximal end of the trial assembly. The method may further comprise removing the trial assembly from the patient. The method may further comprise positioning an implant between the vertebrae in the patient. The method may further comprise expanding the implant based on the measured expansion of the trial assembly.09-13-2012
20120232662ARTIFICIAL INTERVERTEBRAL DISC PLACEMENT SYSTEM - An intervertebral disc placement system includes a multi part intervertebral disc, such as a mobile core disc, and an associated placement instrument. The placement instrument holds the disc securely with the disc endplates angled for ease of placement of the disc into an intervertebral disc space and quickly releases the implant within the disc space. The disc includes upper and lower plates having notches in inner surfaces for engagement of the placement instrument. The placement instrument has a rotatable key configured to fit into the first and second notches to grasp the disc from the interior and eliminate the need for an external grasping mechanism which could interfere with disc placement.09-13-2012
20120010717SPINAL IMPLANT FOR USE DURING RETROPERITONEAL LATERAL INSERTION PROCEDURES - A method is disclosed for introducing a spinal disc implant into an intervertebral space of a subject. The subject is placed in a lateral position, and the anterior face of the spinal disc intervertebral space is accessed, between the L5 and S1 vertebrae, from an anterior and lateral retroperitoneal approach. An operative corridor to the anterior face of the spinal disc space is established by introducing a retractor instrument anterolaterally to the spinal disc space between the anterior superior iliac spine and the anterior inferior iliac spine. The damaged spinal disc contents are removed from the intervertebral space through the operative corridor, and the implant is advanced into the intervertebral space at an oblique angle and pivoted to position the implant substantially laterally within the intervertebral space. Elongated retractor and insertion instruments, as well as a modified disc implant, are also disclosed for carrying out the method.01-12-2012
20120010716INSERTION DEVICE FOR USE DURING RETROPERITONEAL LATERAL INSERTION OF SPINAL IMPLANTS - A method is disclosed for introducing a spinal disc implant into an intervertebral space of a subject. The subject is placed in a lateral position, and the anterior face of the spinal disc intervertebral space is accessed, between the L5 and S1 vertebrae, from an anterior and lateral retroperitoneal approach. An operative corridor to the anterior face of the spinal disc space is established by introducing a retractor instrument anterolaterally to the spinal disc space between the anterior superior iliac spine and the anterior inferior iliac spine. The damaged spinal disc contents are removed from the intervertebral space through the operative corridor, and the implant is advanced into the intervertebral space at an oblique angle and pivoted to position the implant substantially laterally within the intervertebral space. Elongated retractor and insertion instruments, as well as a modified disc implant, are also disclosed for carrying out the method.01-12-2012
20120010715METHOD OF RETROPERITONEAL LATERAL INSERTION OF SPINAL IMPLANTS - A method is disclosed for introducing a spinal disc implant into an intervertebral space of a subject. The subject is placed in a lateral position, and the anterior face of the spinal disc intervertebral space is accessed, between the L5 and S1 vertebrae, from an anterior and lateral retroperitoneal approach. An operative corridor to the anterior face of the spinal disc space is established by introducing a retractor instrument anterolaterally to the spinal disc space between the anterior superior iliac spine and the anterior inferior iliac spine. The damaged spinal disc contents are removed from the intervertebral space through the operative corridor, and the implant is advanced into the intervertebral space at an oblique angle and pivoted to position the implant substantially laterally within the intervertebral space. Elongated retractor and insertion instruments, as well as a modified disc implant, are also disclosed for carrying out the method.01-12-2012
20110166660IMPLANT WITH SPIRAL ANCHOR - An intervertebral implant (07-07-2011
20110166659Implant Device - The present invention is directed to an implant device, in particular an implant device placed between bony, cartilaginous or soft tissues or between prosthetic surfaces to restore or create a gap. More particular the present invention is directed to an implant device made from polymeric material and having a stiffness gradient as well as a limited dimensional deformation, wherein the implant device has a stiffness gradient and a limited dimensional deformation and preferably is at least partially anisotropic.07-07-2011
20110166658SPINAL IMPLANT WITH ATTACHMENT SYSTEM - The embodiments of the present disclosure relate to a spinal implant assembly having features to prevent or minimize fixation elements, such as screws, from being dislodged, or from backing out over time and with use. The spinal implant assembly may comprise an implantable body having first apertures for receiving fixation elements. A plate configured to nest against the posterior portion of the implantable body and comprising one or more second apertures can be provided. These second apertures permit access to the head portions of the fixation elements. One or more locking elements are then passed through the second apertures and engage the head portions of the fixation elements. In addition, the plate may comprise an adjustable arm to allow the plate to be used with implantable bodies of different size.07-07-2011
20110166657SPINAL IMPLANT CONFIGURED FOR LATERAL INSERTION - The embodiments provide a spinal implant that is configured for lateral insertion into a patient's intervertebral disc space. The spinal implant may have a body having a tapered anterior portion and one or more apertures. The tapered anterior portion allows for concomitant distraction of soft tissue during insertion of the implant. In addition, at least some of the apertures are designed to permit a predetermined amount of nutation by a fixation element. The fixations elements that allow nutation enable the fixation element to toggle from one position to another, for example, during subsidence of the implant in situ.07-07-2011
20110166656SPINAL IMPLANT CONFIGURED FOR MIDLINE INSERTION - The embodiments provide a spinal implant that is configured for midline insertion into a patient's intervertebral disc space. The spinal implant may have a body and the body comprises one or more apertures. The apertures receive fixation elements, such as a screw and the like. The fixation element may comprise one or more anti-backout features, such as a split ring. In addition, at least some of the apertures are designed to permit a predetermined amount of nutation by a fixation element. The apertures that allow nutation enable the fixation element to toggle from one position to another, for example, during subsidence of the implant in situ. Some of the apertures may be configured to rigidly lock with the fixation elements. Moreover, the spinal implant may include features, such as one or more bores, that can accommodate imaging marks to help guide a surgeon.07-07-2011
20120116514SEMI-BIOLOGICAL INTERVERTEBRAL DISC REPLACEMENT SYSTEM - Disclosed is a system and method for a partially biological disc replacement that stimulates natural fibrous, cartilaginous or other tissue growth in the DDD cavity, resulting in a partial biological disc replacement. Multiplicities of fibronous pieces of fibro-cartilaginous tissue promoting material are inserted into the DDD cavity inducing tissue growth. The fibro-cartilaginous tissue05-10-2012
20120116512INTERVERTEBRAL DISK PROSTHESIS NOTABLY FOR CERVICAL VERTEBRAE - A prosthesis comprises having two portions independent of each other, a first portion and a second portion, at least one of which includes an articular surface, said first portion and said second portion each comprising a circular seat delimited by an arched wall. An element of the prosthesis is an O-ring in an elastically deformable material, and one of said seats is dimensioned to receive a radially outer portion of this ring while the other seat is dimensioned to receive a radially inner portion of this ring.05-10-2012
20120016480ARTIFICIAL INTERVERTEBRAL DISC IMPLANT - An intervertebral disc for placement between adjacent vertebrae comprising: an anterior side; a posterior side; a first lateral side; a second lateral side; an upper endplate having an inner surface and an outer surface, wherein the outer surface of the upper endplate is adapted for contacting a first vertebra; a lower endplate having an inner surface and an outer surface, wherein the outer surface of the lower endplate is adapted for contacting a second vertebra; and an elastic membrane extending from the inner surface of the upper endplate to the inner surface of the lower endplate and defining an inner volume that is at least partially filled with a fluid, wherein the elastic membrane is affixed to the inner surface of the upper endplate and to the inner surface of the lower endplate.01-19-2012
20120016481Linked Slideable and Interlockable Rotatable Components - Medical devices having one or more rotatable linkable components or segments, delivered in a first orientation relative to a component guide into a tissue cavity, such as the interbody vertebral space. After delivery, each segment may be rotated to a second, different orientation relative to the component guide, such as into a permanent vertical standing position. The segments achieve maximum distraction of the cavity space such as adjacent vertebra end plates, while using a minimal invasive surgical (MIS) approach. When the segments are tightened in place, the device provides long-term stability. The device can be used as a distraction instrument and/or permanent implant that can be used for interbody fusion, nuclear replacement, or anywhere in the body where a stable distraction of tissue and/or the implantation of material such as a device with an MIS approach is desired.01-19-2012
20120016479Rotating, locking, spring-loaded artificial disk - A rotating, locking, spring-loaded disk implant for stabilizing adjacent vertebrae. The implant is substantially rectangular in cross-sectional shape with minimal height and maximal width. The implant is inserted into the space between two adjacent vertebrae from which a portion of the intervertebral disk has been removed and, when positioned in the disk space, rotated to bring the sides of the rectangularly-shaped implant defining the width of the implant, with its larger dimension, into engagement with the bodies of the adjacent vertebrae. A portion of the implant is biased away from the implant and into contact with the adjacent vertebrae to provide a cushioning effect between the implant and the vertebra. A lock is then secured to the implant to resist further rotation of the implant in the disk space.01-19-2012
20120016478INTERVERTEBRAL IMPLANT WITH MULTI-PIECE END CAP - Implants sized to be inserted into an intervertebral space between first and second vertebral members, and related methods. The spinal implant may have a body extending along a longitudinal axis with opposing first and second longitudinal ends. An end cap is mounted to the body at one of the ends and disposed longitudinally outboard of the corresponding end. The end cap comprises a first portion, a second portion, and an annular elastic element, such as an O-ring. The first and second portions are disposed circumferentially around the longitudinal axis. The annular elastic member circumferentially surrounds the first portion, the second portion, and the longitudinal axis. The annular elastic member applies a compressive force that urges the first and second portions together in a direction transverse to the longitudinal axis. The end cap may be flat or angled. Other implants and related methods are disclosed.01-19-2012
20130013071Osteoimplants and Methods for their Manufacture - An osteoimplant is made up of a coherent aggregate of elongate bone particles.01-10-2013
20130013070VERTEBRAL JOINT IMPLANTS AND DELIVERY TOOLS - A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.01-10-2013
20090088856INTERVERTEBRAL DISK PROSTHESES - Intervertebral disc prosthesis includes an upper plateau (04-02-2009
20090281629Intervertebral disc prosthesis - The invention concerns an intervertebral disc prosthesis (11-12-2009
20120022654VARIABLE HEIGHT INTERVERTEBRAL DEVICES AND METHODS FOR USE - Variable height intervertebral devices and method of employing the devices are disclosed. The devices and methods can maintain or re-establishing anatomic spacing along a spine and can ensure avoidance of long-term structural, neurological, vascular, and/or other systemic impairments. The intervertebral device includes a cylindrical body having a first end and a second end opposite the first end; a first disk threaded to the first end of the cylindrical body and a second disk mounted to the second end of the cylindrical body; means for rotating the cylindrical body whereby the first disk translates along the cylindrical body to vary the height of the device; and a plurality of pins mounted to one disk, the plurality of pins slidably engageable with a plurality of sleeves mounted to the other disk, the pins and sleeves inhibiting the first disk from rotating when the cylindrical body is rotated.01-26-2012
20120022653COMPOSITE ORTHOPEDIC IMPLANT HAVING A LOW FRICTION MATERIAL SUBSTRATE WITH PRIMARY FRICTIONAL FEATURES AND SECONDARY FRICTIONAL FEATURES - An orthopedic implant comprising a substrate material adapted to provide the orthopedic implant. The implant has a primary friction area located on or integral with the substrate material. The primary friction area defining an engagement surface having a primary frictional feature. A secondary friction area is located on or integral with the engagement surface and defining a second frictional feature. The primary friction area and the secondary friction area defining a friction interface zone between the orthopedic implant and at least one bone. The secondary friction area increases a friction of the engagement surface and modulus of elasticity to enhance the frictional engagement between the engagement surface and the at least one bone.01-26-2012
20120022652SPINE DISC REPLACEMENT WITH COMPLIANT ARTICULATING CORE - An intervertebral implant can include a pair of endplates between which is coupled a bag that is filled or is fillable with small beads or particles having smooth exterior geometries. The bead sack implant allows for articulation about various centers of rotation without a predefined neutral position.01-26-2012
20120022651DIRECT LATERAL SPINE SYSTEM INSTRUMENTS, IMPLANTS AND ASSOCIATED METHODS - Apparatus, systems, and methods for spine surgery employ a guide wire temporarily anchored to a contralateral side of an intervertebral disc. The guide wire establishes a reliable pathway for passage and actuation of cannulated instruments or implants through a small working channel leading to an ipsilateral side of the disc. The guide wire may be disconnected and removed from the disc after use.01-26-2012
20090204219Intervertebral Disc Prosthesis - The present invention relates to an intervertebral disk prosthesis comprising at least three parts including a first plate, referred to as the upper plate (08-13-2009
20120059480PERCUTANEOUS ARTHRODESIS METHOD AND SYSTEM - A method and system for percutaneous fusion to correct disc compression is presented. The method has several steps, for instance, inserting a percutaneous lumbar interbody implant; positioning guide wires for each facet screw to be implanted; performing facet arthrodesis in preparation for the facet screws; fixating the plurality of facet screws; and optionally performing foramen nerve root or central decompression. The system includes an implant, an elongate cannulated insertion tool, and an elongate lockshaft positioned within the insertion tool.03-08-2012
20120059482Methods of Distracting Tissue Layers of the Human Spine - The present invention relates to methods of separating, supporting or both separating and supporting layers of tissue in the human spine. Such methods generally comprise inserting at least one member between layers of tissue in the human spine and changing the configuration of the member to define a support structure between the tissue layers.03-08-2012
20120059481Spinal Fusion Cage, Method of Design, and Method of Use - A fusion cage of the present invention includes a first housing portion, a second housing portion, and an insert portion adapted to be received therebetween, wherein the geometry of the fusion cage corresponds substantially to the geometry of a void into which the fusion cage is to be inserted. Also described is a novel tool for insertion of a fusion cage and a novel method for designing a fusion cage or other surgical implant for filling a void identified within a patient.03-08-2012
20120059478INTERVERTEBRAL PROSTHETIC DISC WITH METALLIC CORE - A prosthetic disc for insertion between adjacent vertebrae includes a core having upper and lower curved surfaces and upper and lower plates. At least one of the curved surfaces of the core is metallic, and in some embodiments the entire core is metallic. Each plate has an outer surface which engages a vertebra and a metallic inner curved surface which is shaped to slide over one of the curved surfaces of the core. In some embodiments, the center of rotation of the core is free to move relative to the upper and lower metallic plates. In some embodiments, one or more channels extend across one or both of the curved surfaces of the core for allowing passage of bodily fluid to promote lubrication between the core and at least one of the plates.03-08-2012
20120059477TOOLS AND METHODS FOR SPINAL FUSION - The present disclosure relates to a spinal fusion impactor tool that includes an attachment means for securing an implant device to the distal end of the tool, a means for adjusting the angle of the distal head relative to the handle to better position the implant for introduction into the implant site, means for remotely releasing the implant device at the distal end and a clamp device on the shaft of the tool to secure tabs, attachments and other devices. The impactor tool is preferably used in conjunction with implantation of an intervertebral fusion cage that is equipped with shims having tabs or other removing means, but may also be used to introduce, for example, an implant, graft, fusion device, wedge or distractor device into any joint space or bony region in preparation for implantation.03-08-2012
20120059475Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.03-08-2012
20120059474Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.03-08-2012
20120059476Method and Apparatus For Spine Joint Replacement - A prosthesis for the replacement of the cartilaginous structures of a spine motion segment is described. The prosthesis comprises an intervertebral disc prosthesis in combination with a facet joint prosthesis.03-08-2012
20120059479APPARATUS AND METHOD FOR PERFORMING SPINAL SURGERY - An embodiment of an intervertebral prosthetic device for implantation in a spine includes a rigid fixation member and a compressible member. The fixation member is configured to be placed in a cavity of a first vertebral body and against bone of the first vertebral body. The compressible member is configured to be placed in a cavity in an intervertebral disc and to be secured to the first fixation member. Another embodiment includes two compressible members and one fixation member. In this embodiment, the first and second compressible members are sized to substantially replace the nucleus pulposus of first and a second intervertebral discs, respectively, on either side of a vertebral body. The fixation member is sized to fit within a cavity in the vertebral body between the first and second compressible members.03-08-2012
20110093074Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.04-21-2011
20110093078Intervertebral Spacer - An interbody spacer for insertion between vertebral members. The spacer includes a body having posterior and anterior sides, and inferior and superior faces. The spacer further includes a plurality of teeth to maintain the position of the spacer between the vertebral members. The teeth are aligned in a pattern and have a shape to allow insertion into the space between the vertebral members, and prevent or limit movement once the spacer is positioned in the space.04-21-2011
20110093077INTERVERTEBRAL IMPLANT WITH JOINT ELEMENTS CARRIED BY UNIVERSAL JOINT - An intervertebral implant, specifically an artificial intervertebral disk, with a central axis, an upper section, suitable for laying onto the base plate of a vertebral body lying on top and lower section, suitable for laying onto the cover plate of a vertebral body lying below, wherein04-21-2011
20110093076Prosthetic lumbar disc assembly having natural biomechanical movement - Described here is a surgical device. Specifically, the device is a prosthetic spinal implant that replaces a natural lumbar disc in the spine. The device has biomechanical attributes substantially similar to a natural disc.04-21-2011
20110093075ARTIFICIAL INTERVERTEBRAL SPACER - An artificial intervertebral spacer comprises a first arm and a second arm, each of the arms having first and second ends and wherein the first ends of each of the arms are connected together and wherein the second ends of each of the arms are generally separated from each other and divergently extend in a common direction. In a preferred embodiment, the first ends of the arms are joined to form a third arm. In a further preferred embodiment, the spacer comprises a generally Y-shaped structure. In other embodiments, at least two spacers are combined to provide an intervertebral distracting device.04-21-2011
20120209388Systems and Methods for Spinal Fusion - A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites.08-16-2012
20120209389ARTIFICIAL DISC REPLACEMENT DEVICE - An artificial disk replacement device includes opposing plate members with a pivoting assembly disposed therebetween. The pivoting assembly allows the plate members to pivot relative to each other in a first direction, but inhibit movement of the plate members in a second direction. The plate members may be installed prior to installing the pivoting assembly. An installation tool for use with the artificial disk replacement device is also disclosed.08-16-2012
20120158143ALIF Spinal Cage - A fusion cage having a substantially continuous sidewall made from any of various materials including titanium, PEEK, a carbon graphite fiber, or even a combination of these materials. A hollow core defined by the sidewall is typically filled with bone graft in order to form a solid fusion with vertebrae. The sidewall of the cage has upper and lower surfaces, an anterior section, at least two lateral sections each connected to the anterior section, and a posterior section connected to the lateral sections. The sidewall is preferably tapered at one of either a four or eight degree incline from the posterior to the anterior section so as to maintain backbone curvature. A plurality of distinct tool ports provide for anterior, lateral and/or anterolateral insertion of the device. Each tool port is provided with screw insertion orifices.06-21-2012
20120209386EXPANDABLE INTERVERTEBRAL IMPLANTS AND INSTRUMENTS - Systems for interbody fusion of adjacent bone portions may include an expanding implant and related instruments. An expanding implant may be formed as a linkage which is movable between a compact configuration and an expanded configuration. A shaft of the implant may increase and decrease in length to move between the compact and expanded configurations, and an implant width perpendicular to the length may be increased in the expanded configuration. The implant width may increase more in a first direction than a second direction opposite the first direction. An inserter instrument may releasably grasp the spacer and transform the implant between the compact and expanded configurations.08-16-2012
20120209385Anterior intervertebral fusion with fixation system, device and method - A system, device, and method are disclosed for anterior intervertebral fusion with fixation. An intervertebral fusion with fixation device includes a spacer configured to fit into a disc space between plural vertebrae, the spacer including through holes between and through plural sidewalls. A first fixating element is rigidly preloaded in a first portion of the spacer along a first linear trajectory. A second fixating element is rigidly preloaded in a second portion of the spacer along a second linear trajectory. An integrated drill and screwdriver instrument is adapted to extend through a cannula of the first fixating element and second fixating element and penetrate the vertebra. The instrument is further adapted to drive the head of the first fixating element and second fixating element into the vertebra and lock the first fixating element and second fixating element with respect to the spacer to prevent extrusion from the spacer.08-16-2012
20120158150DEVICES FOR INTRODUCTION INTO A BODY VIA A SUBSTANTIALLY STRAIGHT CONDUIT TO FORM A PREDEFINED CURVED CONFIGURATION, AND METHODS EMPLOYING SUCH DEVICES - A device for introduction into a body in a straight configuration and assuming within the body a predefined curved configuration, includes an elongated element formed from a number of segments interconnected so as to form effective hinges therebetween. When the elongated element is confined to a straight state, the effective hinges transfer compressive forces from each segment to the next so that the elongated element can be pushed to advance it through a conduit. When the elongated element is not confined to a straight state, the effective hinges allow deflection of each segment relative to adjacent segments until abutment surfaces of the segments come into abutment, thereby defining a fully flexed state of the elongated element with a predefined curved configuration. The device can be produced with a wide range of two-dimensional and three-dimensional curved forms, and has both medical and non-medical applications.06-21-2012
20120158149SPINAL INTERBODY SPACER - A spinal spacer for engagement between vertebrae includes a body extending between a substantially contoured first end surface and a second end surface to define side surfaces and opposing top and bottom vertebral engaging surfaces substantially symmetrical about a centerline axis. At least one opening defines a hollow inner body and includes first and second intersecting openings extending through the top and bottom vertebral engaging surfaces. The second intersecting opening extends through the side surfaces. The second end surface includes at least one aperture formed therethrough in communication with the hollow inner body. A screw opening is defined through at least one plate insert configured to be removably coupled to the second end surface to substantially align the screw opening with the at least one aperture. The bone screw is configured to be threadingly secured within the at least one plate insert.06-21-2012
20120158148Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.06-21-2012
20120158145INTERVERTEBRAL IMPLANT HAVING FEATURES FOR CONTROLLING ANGULATION THEREOF - An intervertebral implant includes a first plate having an inner surface, an outer surface, a ball shaped protuberance projecting from the inner surface and an annular groove surrounding the ball shaped protuberance. The implant includes a second plate having an inner surface, an outer surface, a curvate socket formed in the inner surface of the second plate and a raised rim surrounding the curvate socket. The first and second plates are assembled together so that the inner surfaces of the plates oppose one another and the ball shaped protuberance is disposed in the curvate socket and the annular groove aligned with the raised rim. The assembled first and second plates angulate and rotate relative to one another.06-21-2012
20120158147Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.06-21-2012
20120158146Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.06-21-2012
20120158144IMPLANT WITH CRITICAL RATIO OF LOAD BEARING SURFACE AREA TO CENTRAL OPENING AREA - An implant that has a predefined ratio of load bearing surface area to the overall size of the implant body and specifically to the surface area of a centrally located opening of a vertical aperture which connects to a center void area or passage defined by the implant body shape. This invention discloses a critical ratio or balance between loading of contained graft material through the hollow center or central passage of the implant and the implant's frictional load bearing or contact area with e.g., adjacent vertebral bones. Application of this invention to a spinal implant provides an improved integration and integration rate of the graft material or the fusion of the adjacent vertebral bone structures. The ratio between implant load bearing surface area and implant central opening area maximizes implant internal volume and allows a large passage disposed medial laterally to allow for radiographic verification of fusion growth.06-21-2012
20120071983BONE GRAFTS - Spinal spacers for fusion of a motion segment. A spinal spacer includes a body, which may be formed of a bone composition. The body includes a first end, an opposite second end, a superior face defining a superior vertebral engaging surface and an inferior face defining an inferior vertebral engaging surface. At least one of the vertebral engaging surfaces defines a set of migration resistance grooves. Each of the grooves includes a first face defining an angle of no more than about 90 degrees relative to the engaging surface and a second opposing sloped face.03-22-2012
20120071982Anatomic spinal implant having anatomic bearing surfaces - The present application is directed to an interbody spinal implant having a structural configuration that provides for maintaining the normal anatomic relationship of two adjacent vertebrae of the spine. The spinal implant is sized to fit within the disc space created by the removal of disc material between two adjacent vertebrae and conform wholly, or in part, to the disc space created. The spinal implant of the present invention has first and second sides with upper and lower bearing surfaces that form a support structure for bearing against the end plates of the adjacent vertebrae. The upper and lower bearing surfaces of the first and second sides are shaped to create an anatomic fit with the endplates of the adjacent vertebrae.03-22-2012
20120071981Methods and Systems for Interbody Implant and Bone Graft Delivery - A spacer for implantation between adjacent vertebrae is provided. The spacer includes a distal end and a proximal end. The spacer also includes top and bottom surfaces spaced by sides. The top and bottom surface define a height, and the sides define a width. Each of the sides of the spacer also includes a depressed region sunk into the side including a sloped surface at least toward the proximal end of the spacer. The distance between the sloped surfaces of the sides decreases proximally to form a wedge having a leading edge proximate to the proximal end of the spacer. The wedge is sized and configured to aid distribution of bone graft material to either side of the wedge, wherein bone graft material is supplied to a site of interest is distributed to at least one side of the wedge.03-22-2012
20120071980STEERABLE SPINE IMPLANT AND SYSTEM - Embodiments of the invention being disclosed are directed to a spine implant that allows for in situ adjustment or steering during implantation which allows for precise placement. The structure of the device is composed of a series of hinged link components connected by dowel or shear pins allowing for the links to rotate with respect to each other. The steering feature of the device is activated by a series of tension members connected or coupled to the links. As the tension members are placed in tension, typically by pulling the appropriate member, forces are placed on the individual links to actuate/rotate them in a clockwise or counterclockwise direction. By controlling the rotation of the links, the device may be steered in the desired direction.03-22-2012
20120071979Minimally invasive apparatus to manipulate and revitalize spinal column disk - A method and apparatus are provided to manipulate and revitalize a spinal column disc while minimizing or preventing the removal of material comprising the disc. The method allows a device to be inserted in the disc either through a pre-existing rupture or through an opening formed in the front, back, or sides of the disc. Increasing the space between the vertebra bounding the disc or removing disc material often is not necessary to insert the device in the disc. The device generates internal traction or other forces acting on the disc to alter the shape of the disc. The shape of the disc is altered to relieve pressure on nerves adjacent the disc. The shape of the disc is also altered to draw nuclear hernias back into the interior of the disc and to produce a disc shape that improves functioning of the disc.03-22-2012
20120071978DISTRACTIBLE INTERVERTEBRAL IMPLANT - A distractible intervertebral implant configured to be inserted in an insertion direction into an intervertebral space that is defined between a first vertebral body and a second vertebral body is disclosed. The implant may include a first body and a second body. The first body may define an outer surface that is configured to engage the first vertebral body, and an opposing inner surface that defines a rail. The second body may define an outer surface that is configured to engage the second vertebral body, and an inner surface that defines a recess configured to receive the rail of the first body. The second body moves in a vertical direction toward the second vertebral body as the second body is slid over the first body and the rail is received in the recess.03-22-2012
20120071984METHOD FOR INSERTING AN ARTIFICIAL IMPLANT BETWEEN TWO ADJACENT VERTEBRAE ALONG A CORONAL PLANE - A method for inserting an artificial implant between two adjacent vertebrae along a corona plane,03-22-2012
20110035011EXPANDABLE INTERVERTEBRAL IMPLANT - An expandable intervertebral implant (02-10-2011
20120116516ARTIFICIAL DISC PROSTHESIS FOR REPLACING A DAMAGED NUCLEUS - A multi-piece disc replacement implant for replacing a disc removed by a discectomy including an upper plate member, a lower plate member, and an intermediate resilient member providing movement between the two plate members replicating the natural movement of the spine. The plate members are rigid and have orthogonal sidewalls forming an enclosure. The resilient member is an elastic solid or a multi-chamber balloon structure of fluid-filled sacks that collectively define a non-uniform shape such as an oblate spheroid, or a helically coiled string of beads. Such an implant is capable of supporting the compressive and cyclic loads required of a natural disc. The upper and lower plate members are cooperatively formed to selectively limit the allowable range of motion in any given direction and a provided with protrusions to be received in one or more channels cooperatively formed in the vertebrae and secured in place by a bone screw.05-10-2012
20120123545Total disc implant - A total disc implant (TDI) is provided for total replacement of a spinal disc or discs in a human patient or other mammal, wherein the TDI is designed to maintain a substantially full range of natural motion (ROM) following implantation. The TDI generally comprises, in one preferred form, upper and lower end plates for affixation to adjacent vertebral bodies, with an intervening insert disposed therebetween. The end plates each include elongated part-cylindrical surfaces oriented generally perpendicular to each other, with one of said surfaces extending in an anterior-posterior direction and the other extending in a medial-lateral direction. The intervening insert defines concave upper and lower part-cylindrical seats oriented for respectively engaging these part-cylindrical surfaces, wherein these part-cylindrical seats are defined by offset radii to include a somewhat flattened central base region merging smoothly with upwardly curving radiused sides.05-17-2012
20120109317DEVICE FOR DISTRACTING BODY TISSUE - An expandable interbody fusion device includes superior and inferior plates that are configured to receive a sequentially inserted stack of expansion members or wafers. The superior and inferior plates include features that at least initially interlock the two plates until the superior plate is dislodged by pressure from the growing wafer stack. The wafers include features on their top and bottom surfaces that interlock the wafers in multiple degrees of freedom so that the wafer stack is not disrupted when the fusion device is fully expanded. Each wafer also includes features that interlock with the inferior plate until the wafer id dislodged by sequential introduction of another wafer.05-03-2012
20100121456POSTERIOR VERTEBRAL SUPPORT ASSEMBLY - The invention concerns an assembly (05-13-2010
20110077740Minimally Invasive Interbody Device Assembly - A minimally invasive interbody device assembly that includes an interbody device that restores the disc space height between two vertebrae and an instrument detachably coupled to the interbody device for positioning the device in the disc space and delivering bone material to the disc space that is distributed on both sides of the interbody device. The device is inserted into the disc space using the instrument in a direction so that the wide dimension of the device is substantially parallel to the body of the vertebrae. The device is then rotated by the instrument so that the wide dimension of the device becomes perpendicular to the vertebral body so as to cause the disc space height to be restored. Bone graft material is then forced down the instrument so that the bone graft material is distributed on both sides of the device. The instrument is then detached from the device.03-31-2011
20110106264METHODS OF INTERVERTEBRAL DISC AUGMENTATION - Systems for minimally invasive disc augmentation include an anulus augmentation implant suited for minimally invasive deployment. A nucleus augmentation component may be included. The anulus augmentation implant shields weakened regions of the anulus fibrosus and/or resists escape of natural nucleus pulposus and/or the augmentation component. Methods and deployment devices are also disclosed. Several embodiments cause or allow fibrosus or bony ingrowth in or around the augmentation.05-05-2011
20110106263Spinal Disc Prosthesis and Associated Methods - A prosthetic device for insertion into a spondylosed intervertebral space is provided. The prosthetic device includes a first component having a first flange for longitudinally engaging a first vertebra during longitudinal insertion therein, and a second component having a second flange for longitudinally engaging a second vertebra during longitudinal insertion therein. One of the first and second components comprises a projection and the other of the first and second components comprises a recess, the projection and recess being adapted to engage one another. One of the projection and the recess are offset relative to the other of the projection and the recess to accommodate the spondylosed relationship between the first and second vertebrae.05-05-2011
20110106262Prosthetic intervertebral discs having substantially rigid end plates and fibers between those end plates - Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.05-05-2011
20110106261SYSTEM AND METHOD FOR AN INTERVERTEBRAL IMPLANT ASSEMBLY - An intervertebral implant assembly includes and inserter tool and an implant having a U-shaped body shaped and dimensioned to be placed between two adjacent vertebras. The U-shaped body comprises a rounded front end, an open back end, first and second elongated components extending from the rounded front end, forming the U-shaped body and ending at the open back end and at least one rigid strut extending from and connecting opposite inner side surfaces of the first and second elongated components. A first through-opening is formed in the space between the front end, the rigid strut and the opposite inner side surfaces of the front portions of the first and second elongated components and a second through-opening is formed in the space between the open back end, the rigid strut and the opposite inner side surfaces of the back portions of the first and second elongated components. The inserter tool comprises a shaft, a middle sleeve and an outer sleeve that work together to attach and lock to the implant.05-05-2011
20110106260Flexible Vertebral Spacer - A flexible implant system for positioning a flexible spacer between adjacent vertebrae including and interbody spacer and an insertion instrument. The interbody spacer including a central axis, a lateral axis, a top surface positioned generally parallel to the central axis and a plurality of hinge sections extending generally perpendicular to the central axis. A plurality of notches making up the plurality of hinge sections adjacent the top surface that permit the interbody spacer to flex. The interbody spacer further including a groove extending along a lateral side surface, generally parallel to the central axis. An insertion instrument includes a proximal end, a distal end and a tongue extending from the proximal end to the distal end along a non-linear path. The groove slidably engages the tongue to guide the interbody spacer from the proximal end to the distal end along the non-linear path.05-05-2011
20110106259Self-Pivoting Spinal Implant and Associated Instrumentation - An intervertebral implant includes an insertion end, an opposing engagement end, and first and second opposed main surfaces configured to contact respective adjacent vertebral endplates. Each of the first and second main surfaces has an anterior edge, a posterior edge, and extends between the insertion and engagement ends. Anterior and posterior walls are formed between the first and second main surfaces and along the respective anterior and posterior edges and converge at the insertion and engagement ends. A slot is formed at the engagement end and extends continuously between and at least partially along the anterior and posterior walls. A post is positioned within the slot, spaced from at least one of the anterior and posterior walls and extending at least partially between the first and second main surfaces. The post includes a plurality of exposed facets and is configured for engagement with a pivotable insertion instrument.05-05-2011
20110106258END CAP FOR A VERTEBRAL IMPLANT - An implant for insertion between adjacent vertebral members, comprising an implant body with at least one base section and an end cap. The end cap is adapted for selective positioning on a base section via rotational adjustment of the end cap. The end cap comprises an exterior contact surface that faces away from the implant body when positioned on the base section, a seating surface which contacts the base section when positioned on the implant body, end cap angulation, positioning passages adapted to receive positioning teeth, the positioning passages and positioning teeth complimentarily configured to facilitate positioning the end cap on the base section, and a locking mechanism adapted to lockingly engage the end cap and base section such that the implant imparts end cap angulation to an adjacent vertebral body at the selected point when the implant is positioned in the intervertebral space.05-05-2011
20100137990Porous Substrates for Implantation - A porous substrate or implant for implantation into a human or animal body constructed from a structural material and having one or more regions which when implanted are subjected to a relatively lower mechanical loading. The region(s) are constructed with lesser mechanical strength by having a lesser amount of structural material in said region(s) relative to other regions. This is achieved by controlling pore volume fraction in the regions. A spacer is adapted to define an open-cell pore network by taking a model of the required porous structure, and creating the spacer to represent the required porous structure using three-dimensional modelling. Material to form the substrate about the spacer in infiltrated the scaffold structure formed.06-03-2010
20100094426HYBRID INTERVERTEBRAL SPINAL IMPLANT - A spinal implant of hybrid construction. The implant includes both porous and radiolucent elements. In this manner, the implant allows for substantial fusing of vertebrae while simultaneously allowing for useful follow-on evaluations through imaging. Furthermore, in spite of the potentially differing material character of the porous and radiolucent elements, they may nevertheless be coupled together in an interlocking configuration such that the implant exhibits the behavior of a single unitary device.04-15-2010
20100094423SYSTEMS AND METHODS FOR ASSESSMENT OF TENSION IN AN IMPLANT - Systems and methods for providing assessment of a tensioned state of a flexible implant are provided. The implant includes at least one marker having a first configuration when the implant is relaxed or not tensioned in a desired manner and a second configuration when the implant is tensioned as desired.04-15-2010
20100094422Intervertebral Spacer - Disclosed is an assembly and method for implant installation between adjacent vertebral bodies of a patient. The implant has a support body and a rotatable insert therein and the support body is curved for installation between adjacent vertebral bodies transforaminally. An installation instrument is also disclosed for removable attachment to implant and engagement with the rotatable insert to selectively permit rotation between the insert and the support body. The installation instrument extends along a longitudinal tool axis and when the installation instrument is in a first position the insert is rotationally fixed with respect to the support body and when the installation instrument is in a second position the support body may rotate with respect to the insert.04-15-2010
20100094424ADJUSTABLE INTERVERTEBRAL IMPLANT - An expandable intervertebral implant (04-15-2010
20120232665Devices and Methods for Treating Tissue Defects - The present disclosure describes embodiments for treating a defect in a tissue, the tissue having internal and external surfaces. A device includes a first portion for positioning at one of the internal and external surfaces for applying a treatment force to the defect. In addition, the device has a second portion for applying a counter-force, where the second portion is operable to be positioned so that the counter-force is applied on the other of the internal and external surfaces, away from the defect so as to substantially avoid application of force at the defect. Furthermore, the device includes a coupling member for connecting the inner and outer portions. Methods of using the device are described, for example in an intervertebral disc having a herniation.09-13-2012
20120232659Angling Inserter Tool For Expandable Vertebral Implant - The present invention relates to a method of inserting an implant comprising providing an expandable vertebral implant. The method further may comprise providing an angling inserter tool. The angling inserter tool comprises a handle portion, a base portion, and a tip assembly, the base portion being disposed between the handle portion and the tip assembly. The method further may comprise distally advancing a central shaft of the tip assembly with rotation into an opening in the expandable vertebral implant to secure the angling inserter tool to the expandable vertebral implant. The method further may comprise positioning the expandable vertebral implant in a patient's spine. The method further may comprise for causing the tip assembly to angulate with respect to a longitudinal axis of the angling inserter tool, wherein the internal shaft is coaxial with an outer cylinder of the base portion.09-13-2012
20120232658METHOD AND APPARATUS FOR MINIMALLY INVASIVE INSERTION OF INTERVERTEBRAL IMPLANTS - A dilation introducer for orthopedic surgery is provided for minimally invasive access for insertion of an intervertebral implant. The dilation introducer may be used to provide an access position through Kambin's triangle from a posterolateral approach. A first dilator tube with a first longitudinal axis is provided. A second dilator tube may be introduced over the first, advanced along a second longitudinal axis parallel to but offset from the first. A third dilator tube may be introduced over the second, advanced along a third longitudinal axis parallel to but offset from both the first and the second. An access cannula may be introduced over the third dilator tube. With the first, second, and third dilator tubes removed, surgical instruments may pass through the access cannula to operate on an intervertebral disc and/or insert an intervertebral implant.09-13-2012
20120123546IMPLANT APPARATUS FOR SPINAL FUSION - An implant apparatus and a method for spinal fusion from oblique, lateral, ALIF, PLIF, and TLIF approach are disclosed. The apparatus can be configured to include an expandable implant cage and an inserter. The cage can be inserted between endplates of upper and lower vertebra using lateral, ALIF, PLIF, and TLIF approach. The cage generally includes a male and female screw configuration and a cage expansion mechanism. The inserter inserts the cage in a spinal disc space and tightens the male and female screw arrangement. Once the cage is inserted to the desired position, viewed by X-ray you will begin to tighten the male portion of the screw in the device, and continue to tighten until final deployment of cage has been achieved. This provides a much greater footprint that allows the device to reach the cortical ring or apophyseal ring of the vertebral body. Tightening of male and female screw arrangement operates the cage expansion mechanism to expand the cage size. The cage can be inserted through a smaller surgical opening and then expanded to a full size assembly between the vertebrae.05-17-2012
20120316651COMPOSITE IMPLANTS HAVING INTEGRATION SURFACES COMPOSED OF A REGULAR REPEATING PATTERN - A composite interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, and opposing anterior and posterior portions; a first integration plate affixed to the top surface of the body; and an optional second integration plate affixed to the bottom surface of the body. At least a portion of the first integration plate, optional second integration plate, or both has a roughened surface topography including macro features, micro features, and nano features, without sharp teeth that risk damage to bone structures, adapted to grip bone through friction, inhibit migration of the implant, and promote bone growth. Also disclosed are processes of fabricating a roughened surface topography, which may include separate and sequential macro processing, micro processing, and nano processing steps.12-13-2012
20120316650IMPLANTS HAVING THREE DISTINCT SURFACES - An interbody spinal implant having at least three distinct surfaces including (1) at least one integration surface having a roughened surface topography including macro features, micro features, and nano features, without sharp teeth that risk damage to bone structures; (2) at least one graft contact surface having a coarse surface topography including micro features and nano features; and (3) at least one soft tissue surface having a substantially smooth surface including nano features. Also disclosed are processes of fabricating the different surface topographies, which may include separate macro processing, micro processing, and nano processing steps.12-13-2012
20090132053Apparatus and method for supporting vertebral bodies - An apparatus and method for supporting upper and lower vertebral bodies, including first and second end members adapted for engagement with the vertebral bodies, and at least one elongate support member coupled between the end members to maintain an axial space between the vertebral bodies. In one aspect of the invention, each of the end members has a parametrical or horseshoe-shaped configuration extending about an open inner region and defining a lateral passage communicating with the open inner region to facilitate insertion of the apparatus or the individual end members into the intervertebral space via a posterior surgical approach. In a further aspect of the invention, a fusion member is positioned within the axial space to promote bony fusion between the upper and lower vertebral bodies.05-21-2009
20090132052INTERVERTEBRAL DISK PROSTHESIS PROVIDED WITH ANCHOR MEANS - An intervertebral disk prosthesis is provided. The prosthesis comprises: a first plate for engaging a first vertebral body, said first plate comprising a first slot formed through the first plate; a second plate for engaging a second vertebral body, said second plate comprising a second slot formed through the second plate; a first anchor member, said first anchor member positioned and slidable through the first slot and having a sharp edge for penetrating into the first vertebral body; and a second anchor member, said second anchor member positioned and slidable through the second slot and having a sharp edge for penetrating into the second vertebral body. The first plate and the second plate engage with one another by way of complimentary concave and convex spherical cap portions to provide relative movement between the first plate and the second plate.05-21-2009
20090132051ARTIFICIAL CERVICAL AND LUMBAR DISCS, DISC PLATE INSERTION GUN FOR PERFORMING SEQUENTIAL SINGLE PLATE INTERVERTEBRAL IMPLANTATION ENABLING SYMMETRIC BI-DISC PLATE ALIGNMENT FOR INTERPLATE MOBILE CORE PLACEMENT - An artificial replacement disc includes a pair of substantially parallel plates formed to occupy a space defined by vertebral endplates, each of the plates including a plurality of spikes on a first surface and a concave trough formed on a second surface opposite of the first surface. A mobile core includes a core rim with opposing convex surfaces extending from opposite sides of the core rim, the mobile core being capable of being disposed between the pair of plates to permit the vertebral endplates to move relative to one another. The spikes on each of the plates extend substantially away from the mobile core and the convex surfaces are formed to integrally fit within the concave trough of at least one of the plates. The core rim limits lateral movement of the mobile core relative to the parallel plates. One or more insertion tools for inserting and implanting the replacement disc are also described.05-21-2009
20100249937FLANGED INTERBODY FUSION DEVICE - Methods and devices are disclosed for treating the vertebral column. An implant for treating the spine is provided comprising at least two articulations between the spacer and the bone facing surface of the fixation plate. Another implant for treating the spine is also provided, comprising two or more fixation plates attached to a spacer with two or more articulations, wherein the fixation plates are independently movable.09-30-2010
20100249935Zero Profile Spinal Fusion Cage - An interbody fusion cage having upper and lower canals for receiving the heads of bone screws that have been pre-installed in opposing vertebral body endplates. The proximal wall of the cage preferably has a vertical slot that communicates with each canal and is adapted to allow access by a screwdriver and tightening of the screws.09-30-2010
20100249936Intervertebral Disk Prosthesis - A method of limiting the movability of an intervertebral disk prosthesis with regard to pivoting movements, and an intervertebral disk prosthesis. The method includes the step of asymmetrically limiting at least one of a flexion-extension movement, a lateral bending, and a rotation about a vertical axis in order to limit the movability of the prosthesis. The prosthesis comprises articulated prosthesis components, and movement-limitation measures configured to limit movability of the components with respect to flexion-extension movement, lateral bending and a rotation about a vertical axis of the prosthesis in a defined manner.09-30-2010
20100249934Ratcheting Expandable Corpectomy/Vertebrectomy Cage - Expandable medical implants for supporting bone structures may include a first member and a second member. The second member may be configured to receive the first member and may be moveable along the longitudinal axis relative to the first member. One of the first and second members may include a plurality of teeth and the other of the first and second members may include at least one tooth. At least a portion of one of the first and second main bodies may be elastically deformable to selectively engage and disengage the at least one tooth and the plurality of teeth. At least one tooth and the plurality of teeth may be shaped to deform the elastically deformable portion when both increasing and when decreasing the overall implant height by moving the second member relative to the first member along the longitudinal axis.09-30-2010
20120316652Self-Distracting Cage - Various spinal implants and methods for stabilizing the spine are provided. In one exemplary embodiment, a spinal implant is provided having an expandable container with an interior volume that is selectively expandable between a compressed condition and an expanded condition. The expandable container is coupled to a superior endplate member having a bone-contacting surface and an engagement surface effective to mate with a superior surface of the expandable container, and an inferior endplate member having a bone-contacting surface and an engagement surface effective to mate with an inferior surface of the expandable container. In addition, at least one inlet port is formed in the expandable container and is effective to communicate a fluid to at least one cavity disposed within the interior volume of the expandable container.12-13-2012
20120316649CERVICAL SPACER - An anterior cervical column support having a hollow frame having a top load bearing surface and a bottom load bearing surface may be inserted between a first spinal vertebra and a second spinal vertebra. The top load bearing surface and the bottom load bearing surface may each include an opening allowing access to the interior of the frame. A front surface may extend between the top load bearing surface and the bottom load bearing surface, and a rear surface may extend between the top load bearing surface and the bottom load bearing surface. An anterior front plate is attached to the front surface of the support device. The interior front plate may be arranged along a plane (P), and an axis (A) between the top load bearing surface and the bottom load bearing surface may be at a non-zero angle relative to the plane (P)12-13-2012
20120130495Intervertebral Fusion Implant - The present invention provides an intervertebral implant for implantation in a treated area of an intervertebral space between vertebral bodies of a spine. The implant includes a spacer portion having an inferior and superior surface, wherein the inferior and superior surfaces each have a contact area capable of engaging with anatomy in the treated area, and the inferior and superior surfaces define a through-hole extending through the spacer body. The present invention further provides screw holes extending from a side portion to the inferior and superior surfaces of the spacer portion and a plate portion rigidly coupled to the spacer portion through a coupling means, wherein the plate portion contains screws holes for receiving screws. A screw back out prevention mechanism adapted on the plate portion and prevents the back out of screws from the screw holes.05-24-2012
20120165947Disc Repair System - A repair system including a closure prosthesis and deployment device, and associated methods for repairing any imperfection including a flaw, hole, tear, bulge, or, in some cases, a deliberate cut or incision in any tissue including an intervertebral disc. The prosthesis has first and second side portions with a connecting central portion, and is designed to span an imperfection with opposite ends positioned on opposite sides of the imperfection. The prosthesis may include anchoring features including barbs and/or members that extend transversely. The deployment device can include a cannula for positioning the prosthesis near the imperfection, and, in some cases, a mechanism that may cause the two sides of the prosthesis to be deployed in a specific order.06-28-2012
20120165944Spinal Implant And Method Of Use - A spinal implant having a series of sections or units hinged together and a balloon connected to at least some of the sections, the balloon having a curved configuration. The implant has a first delivery configuration and a second curved placement configuration, wherein it has a more linear configuration in the first delivery configuration than in the second curved configuration. The implant assumes the first delivery configuration during delivery to the disc space and maintains the curved configuration after placement within the disc space. The curved configuration can result from filling or expanding the balloon.06-28-2012
20120130497Arthroplasty spinal prosthesis and insertion device - An arthroplasty spinal prosthesis with first and second vertebra contacting members that are configured for engaging opposing vertebrae An articulation is supportively associated with the contacting members to allow relative pivotal and translational motion therebetween over anterior-posterior and lateral pivotal axes, and over anterior-posterior and lateral translational axes. This motion allows the opposing vertebrae to pivot and translate with respect to each other. The articulation is configured to permit translational movement substantially uncoupled from the pivoting movement.05-24-2012
20120130494ALLOGRAFT INTERVERTEBRAL IMPLANT AND METHOD OF MANUFACTURING THE SAME - The present invention is directed to an allograft intervertebral implant sized and configured for insertion between adjacent vertebral bodies in a spinal fusion surgery. The implant is preferably manufactured from two or more pieces of allograft bone joined together by a joint, more preferably a dovetail joint. The dovetail joint being sized and configured to substantially follow the exterior shape or surface of the intervertebral implant.05-24-2012
20120130493Expandable Vertebral Implant - The present invention relates to an expandable implant for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.05-24-2012
20120165948Intervertebral Disc Prosthesis Manufacturing Method - A method of manufacturing an intervertebral disc prosthesis for insertion into an intervertebral disc compartment between two vertebra includes: a) biometrically determining the shape of a first dome formed within an apophyseal ring of the first vertebra; and b) providing a first constituent element which is provided on one side with a first joint member and has on the other side a first abutment face which abuts against the first vertebra when the intervertebral disc prosthesis is inserted into the intervertebral disc compartment. The first abutment face has a shape that has no rotational symmetry and that has a vertex configured such that the first constituent element can rotate within the first dome by at least 10° when the vertex of the first abutment face contacts a vertex of the dome.06-28-2012
20120165946INTRADISCAL MOTION LIMITING MEMBER AND METHOD OF INSTALLATION THEREOF - In an exemplary embodiment, the present invention provides a resilient support member capable of being installed inside an intervertebral disc to provide support to an intervertebral disc that has a compromised annulus fibrosis. In one embodiment, the intradiscal member includes an upper support surface, a lower support surface, and an outer wall. In another embodiment, the intradiscal member includes an inner wall defining a volume. In yet another embodiment, the intradiscal member includes a fastening element. The present invention also provides a method for installing the intradiscal member in the nucleus pulposus region of an intervertebral disc.06-28-2012
20120165945Intervertebral Spacer - Disclosed is an assembly and method for implant installation between adjacent vertebral bodies of a patient. The implant has a support body and a rotatable insert therein and the support body is curved for installation between adjacent vertebral bodies transforaminally. An installation instrument is also disclosed for removable attachment to implant and engagement with the rotatable insert to selectively permit rotation between the insert and the support body. The installation instrument extends along a longitudinal tool axis and when the installation instrument is in a first position the insert is rotationally fixed with respect to the support body and when the installation instrument is in a second position the support body may rotate with respect to the insert.06-28-2012
20120165942Universal laminoplasty implant - The present invention relates various embodiments of a laminoplasty implant comprising a telescopic spacer configured to attach to the vertebra and adjust the space between two cut portions of a vertebra.06-28-2012
20120130496Intervertebral Fusion Implant - The present invention provides an intervertebral implant for implantation in a treated area of an intervertebral space between vertebral bodies of a spine. The implant includes a spacer portion having an inferior and superior surface, wherein the inferior and superior surfaces each have a contact area capable of engaging with anatomy in the treated area, and the inferior and superior surfaces define a through-hole extending through the spacer body. The present invention further provides screw holes extending from a side portion to the inferior and superior surfaces of the spacer portion and a plate portion rigidly coupled to the spacer portion through a coupling means, wherein the plate portion contains screws holes for receiving screws. A screw back out prevention mechanism adapted on the plate portion and prevents the back out of screws from the screw holes.05-24-2012
20120316653SPINAL IMPLANT HAVING A TRANSVERSE APERTURE - An interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, and optionally a substantially hollow center. The implant includes at least one transverse aperture on one or more of the posterior portion, the anterior portion, and at least one of the opposing lateral sides, and if the substantially hollow center is present, one or more of the transverse apertures may be in communication with the hollow center. The transverse aperture may comprise a notch.12-13-2012
20120316648INTERVERTEBRAL DISC REINFORCEMENT SYSTEMS - An implant system for reinforcing an intervertebral disc and opposing endplate is provided wherein a flexible blocking member for blocking a defect is coupled to a first endplate anchor. An opposing endplate reinforcement member is coupled to a second endplate anchor and implanted in the opposing endplate.12-13-2012
20090254186NUCLEAR IMPLANT - The nuclear implant according to this invention constitutes, between two overlying and underlying vertebrae Va, Vb of a spine segment Sr, an intervertebral support device that damps shock and ensures the mobility of the functional unit that is formed by the vertebrae of a vertebral column, whereby the nuclear implant includes a filling element (10-08-2009
20100241232SPINAL IMPLANT - A spinal implant comprises a first rolling-contact core operably coupled to a first vertebra, said first rolling-contact core having a first convex surface having a first axis, said first convex surface configured to provide a first rolling motion in a first direction to said first vertebra relative to a second vertebra. At least one flexure is connected to said first rolling-contact core, said flexure configured to constrain said first rolling motion.09-23-2010
20100228350SPINAL NUCLEUS REPLACEMENT IMPLANTS - An intervertebral prosthesis implantable within a disc space and disposed between upper and lower vertebral endplates is provided. The prosthesis comprises a plurality of prosthesis components insertable into the disc space, wherein the components have at least one set of complementarily-shaped and sized surfaces, and wherein the at least one set of complementarily-shaped surfaces comprises a slot, and a rod that fits in the slot. A method of implanting an intervertebral prosthesis according to the present invention also is provided.09-09-2010
20120083890ANTERIOR IMPACTED BONE GRAFT AND DRIVER INSTRUMENTS - Instrument and implants are disclosed which provide for insertion of an implant into an intervertebral disc space from multiple approaches to the spine. Specifically, as a preferred aspect of the invention the implant includes a tapered portion and the implant may be inserted from multiple approaches to the spine with the orientation and taper properly oriented in the disc space regardless of the approach.04-05-2012
20120083888Disc Prosthesis having Remote Flexion/Extension Center of Rotation - An intervertebral disc prosthesis comprises a first endplate, a second endplate, and a bearing surface positioned between the first endplate and the second endplate. The bearing surface may be provided by a mobile bearing disc including a convex bearing surface configured to engage the first endplate and a concave bearing surface configured to engage the second endplate. The multiple bearing surfaces of the mobile bearing disc engage articulating surfaces on the endplates to form a plurality of articulating joints. Each articulating joint is configured to facilitate a particular type of movement for the segmental unit. Furthermore, each articulating joint is defined by a distinct center of rotation. The contact pair formed by the convex bearing surface of the bearing component and the concave bearing surface of the first endplate may provide a flexion/extension center of rotation for the prosthesis.04-05-2012
20120083887INTERVERTEBRAL DEVICE AND METHODS OF USE - A minimally invasive intervertebral implant includes a circuitous body defining a luminal axis extending longitudinally therethrough. The circuitous body includes proximal and distal ends oppositely disposed along a lateral axis of the circuitous body. Each of the proximal and distal ends includes an aperture disposed therethrough such that the circuitous body includes a first configuration wherein the proximal and distal ends are at a maximum separation and a second configuration wherein the proximal and distal ends are closer together than in the first configuration.04-05-2012
20100204798SYSTEM AND METHOD FOR FUSION CAGE IMPLANTATION - A system and method facilitate insertion of a fusion implant into the intervertebral space of a spine. The fusion implant may have a first bone engaging surface and a second bone engaging surface. An attachment interface on an insertion tool allows the implant to be releasably secured to the insertion tool, so that the insertion tool may be detached from the implant without requiring a threaded coupling. The implant may be positioned in two different orientations with respect to the insertion tool to permit usage of two different techniques to insert the implant into the intervertebral space. A recessed support member in the implant creates gaps between bone facing surfaces and the vertebral bodies such that bone graft material may occupy the gaps. The implant includes embedded radiographic markers which facilitate radiographic detection of the orientation of the implant through the surrounding tissue.08-12-2010
20100204796INTERVERTEBRAL IMPLANT WITH INTEGRATED FIXATION - A system for spinal surgery includes a prosthesis comprising a plurality of bone anchors which engage an intervertebral construct for fusion or motion preservation. The fusion construct comprises a spacer optionally encircled by a jacket. The motion preservation construct may comprise an articulating disc assembly or an elastomeric disc assembly. Any of the constructs may occupy the intervertebral disc space between adjacent vertebrae after removal of an intervertebral disc. The anchors slidingly engage the construct to securely fix the prosthesis to the vertebrae. The anchors and jacket of the fusion construct provide a continuous load path across opposite sides of the prosthesis so as to resist antagonistic motions of the spine.08-12-2010
20100204795FIXATION DEVICE AND METHOD - An implantable orthopedic stability device is disclosed. The device can have a contracted and an expanded configuration. A method of using the device between adjacent facet surfaces for support and/or fixation of either or both of the adjacent vertebrae is also disclosed.08-12-2010
20110178598Expandable Vertebral Prosthesis - The present invention relates to an expandable prosthetic implant device for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.07-21-2011
20130123925SELF-DEPLOYING LOCKING SCREW RETENTION DEVICE - A screw assembly and a spinal implant. The screw assembly includes a screw with a head and a shaft where a screw retention member is positioned beneath the head of the screw and substantially surrounds the shaft of the screw. The screw retention member is formed from a temperature-sensitive material. The screw retention member has a first contracted position adapted for inserting the screw through at least one hole in the spinal implant and a second expanded position adapted for retaining the screw within the at least one hole in the spinal implant. The screw retention member may be in the form of a coiled spring or a collar having a plurality of tabs.05-16-2013
20120136448Devices and Methods for Treating Bone - A device is disclosed for reducing a vertebral compression fracture, comprising a superior end plate and an inferior end plate disposed along a vertical axis. The superior end plate and the inferior end plate are slidably separable in a vertical direction along the vertical axis. An interior chamber is provided in fluid communication with a port extending from an exterior to the interior chamber. The device is deployable within a vertebral body and expandable within the vertebral body by injecting a flowable material into the interior chamber thereby displacing the superior and inferior end plates along the vertical axis.05-31-2012
20120136445POSTERIOR SPINAL ARTHROPLASTY SYSTEM - A lumbar disc prosthesis is provided including a first member with a vertebral disc contact surface and a recessed portion on an opposing surface thereof; a second member with a vertebral disc contact surface and a protruding portion on an opposing surface thereof. The protruding portion of the second member engages with the recessed portion of the first member in use. A facet joint prosthesis is provided, including a first member for attachment to a first posterior lumbar disc in use and a second member for attachment to a second posterior lumbar disc in use, where at least a part of the first member is telescopically mounted in at least a part of the second member in use.05-31-2012
20120136447PROSTHESES FOR SPINE DISCS HAVING FUSION CAPABILITY - The present invention provides both a device and a method. The device is a human made replacement for the soft discs in the spine. A fabric pouch encloses a central hydraulic element made up of small soft beads. Two pouches with beads are implanted into a prepared disc space to function as an intervertebral disc. The method is conversion of the device into a fusion element.05-31-2012
20120136446SPINAL PROSTHESIS AND FACET JOINT PROSTHESIS - A lumbar disc prosthesis is provided including a first member with a vertebral disc contact surface and a recessed portion on an opposing surface thereof; a second member with a vertebral disc contact surface and a protruding portion on an opposing surface thereof. The protruding portion of the second member engages with the recessed portion of the first member in use. A facet joint prosthesis is provided, including a first member for attachment to a first posterior lumbar disc in use and a second member for attachment to a second posterior lumbar disc in use, where at least a part of the first member is telescopically mounted in at least a part of the second member in use.05-31-2012
20120136444TWO-COMPONENT ARTIFICIAL DISC REPLACEMENTS - Artificial disc replacements (ADRs) and total disc replacements (TDRs) are based upon two, directly articulating components, resulting in a restricted-motion system that better approximates more normal spinal flexion, extension, and lateral bending. One component may have a concave articulating surface, and the other a convex articulating surface. The radius of curvature of the articulating surface may be smaller in the anterior-to-posterior direction of the ADR than the radius of curvature of the articulating surface in the left-to-right direction of the ADR. Both components are preferably made of a hard material and are highly polished to reduce friction.05-31-2012
20110184524IMPLANT FOR INSERTION BETWEEN VERTEBRAL BODIES OF THE SPINAL COLUMN - An implant (07-28-2011
20110184523SLIDE-ON END CAP FOR A VERTEBRAL IMPLANT - An implant for insertion between adjacent vertebral members, comprising an implant body with a base section having positioning teeth, and an end cap adapted for positioning at a selected point on the base section via adjustment of an approach direction. The end cap comprises a seating surface adapted to contact the base section when positioned on the implant body, an end cap angulation, and positioning passages adapted to receive the positioning teeth. The implant may further comprise a locking mechanism adapted to lockingly engage the end cap and base section and prevent axial movement of the end cap. The positioning passages and positioning teeth are complementarily configured to facilitate slideably positioning the end cap on the base section. The implant body and end cap combination will impart end cap angulation to an adjacent vertebral body at the selected point when the implant is positioned in the intervertebral space.07-28-2011
20110184522MODULAR INTERBODY DEVICES AND METHODS OF USE - Methods and devices for spacing vertebral members using modular intervertebral devices and insertion tools. The devices may include opposing first and second endplates, and an intermediate member configured to fit between and support the endplates. The insertion tool may include an elongated handle and a distracter. A method of inserting the device using the tool may include inserting the endplates positioned on opposing sides of the handle into the intervertebral space and positioning the endplates in the intervertebral space relative to first and second vertebral members. The method may include deploying the distracter and increasing a distance between the endplates. Another step may include inserting the intermediate member into the intervertebral space and between the endplates and supporting the endplates with the intermediate member. The insertion tool may then be removed from the intervertebral space.07-28-2011
20100174374DYNAMIC SPINAL IMPLANTS INCORPORATING CARTILAGE BEARING GRAFT MATERIAL - A dynamic spinal implant utilizes cartilage bearing graft material in dynamic disc replacement and/or facet arthroplasty. Methods and apparatus for dynamic spinal implants incorporate bulk articular graft tissues derived from donor joint sources in human (allograft or autograft) or non-human (xenograft) tissue. The donor joint is preferably prepared as a biological dynamic spinal implant with articular cartilage as a bearing interface between adjacent bone surfaces that naturally articulate with respect to one another.07-08-2010
20100174375Spinal Tissue Distraction Devices - Spinal tissue distraction devices that include at least one guide member for guiding a distraction device to a location between layers of spinal tissue. The guide member has a proximal end portion and a distal end portion. The distal end portion is adapted for insertion between the tissue layers and defines a shape of a desired support structure. The distraction device is slidably mounted on the guide member for advancing the distraction device distally along the guide member for insertion of the distraction device between the tissue layers. The distraction device substantially conforms to the shape defined by the distal end portion of the guide member to form a support structure that separates, supports or both separates and supports the tissue layers.07-08-2010
20120172990Prosthetic Intervertebral Discs Having Substantially Rigid End Plates and Fibers Between Those End Plates - Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.07-05-2012
20120221108ORTHOPEDIC DEVICE ASSEMBLY WITH ELEMENTS COUPLED BY A RETAINING STRUCTURE - The present invention provides an orthopedic device assembly comprising a first assembly element, a second assembly element, and a retaining mechanism. The first assembly element has a recess that receives the second assembly element, and the retaining mechanism holds the second element in an assembled state with the first assembly element. The retaining mechanism includes a retaining member with an angular cross-section defined by a base portion and a lateral flange portion projecting from the base portion. The retaining member is inserted through an aperture of the first assembly element into a groove in a wall of the recess of the first assembly element, with the flange portion projecting laterally of the groove and overhanging a shoulder portion of the second assembly element so as to retain the second assembly element in the assembled state with the first assembly element.08-30-2012
20120221107Disk Fusion Implant - An implant strip is disclosed. In some cases, the prosthesis can take the form of an implant strip that may be implanted through the use of a surgical procedure that minimizes incision sizes and may be considered less invasive than typical spinal implant procedures. The implant strip includes provisions for implantation, including teeth, spacing provisions, and various shapes.08-30-2012
20120172991Composite Interbody Device - A composite interbody device includes superior and inferior endplates with a plastic core molded therebetween. The core includes one or more features for permitting bone growth through the core. Each endplate includes a bone interface side coated with hydroxyapatite, for promoting bone on-growth. Pores in the bone interface sides permit bone in-growth. Core interface sides of the endplates include relatively larger pores for accepting molten material from the core, for example during injection molding, to enhance bonding of the endplates with the core. Each endplate has a central barrier layer for preventing the molten core material from extruding through the core interface pores into the bone interface pores, reserving the bone interface pores for bone in-growth. A method of manufacturing the composite interbody device is also disclosed.07-05-2012
20120172989VERTEBRAL OSTEOSYNTHETIS EQUIPMENT - A vertebral osteosynthesis equipment including an intervertebral implant (07-05-2012
20120172987BUTTRESS PLATE SYSTEM - Systems, devices and methods are provided for assisting in spinal stabilization. A buttress plate system is provided that can include an intervertebral spacer, a buttress plate, a spinal screw, and an insertion instrument. The buttress plate is configured to extend across at least a part of an intervertebral space to block or prevent an intervertebral spacer from backing out of the intervertebral space when the buttress plate is secured to the spine. The buttress plate includes a curved plate body having an aperture therethrough for receiving a spinal screw. The buttress plate also includes a pair of engagement members in the form of spikes to help stabilize the buttress plate relative to the spine prior to securing the buttress plate to the spine. The buttress plate can be coupled to an insertion instrument that is used to guide the buttress plate to a desired position adjacent the spine. Once in a desired position, a spinal screw can be delivered through the insertion instrument and through the aperture of the buttress plate to secure the buttress plate to the spine. The insertion instrument thus helps to properly position the buttress plate adjacent the spine and to deliver a spinal screw toward the aperture of the buttress plate.07-05-2012
20120215316EXPANDABLE INTERVERTEBRAL SPACER - A spinal implant system, specifically an intervertebral spacer. The system is designed to change its physical conformation from a minimal profile to an expanded state, enabling it to be placed through a smaller incision and operative cannula. The ability to change from a minimal profile to an expanded state may be accomplished through pivoting of support bodies, or expansion through a screw system, or sliding of the support bodies perhaps along an oblong surface. The system will allow for long-term promotion of osteointegration.08-23-2012
20120215317Systems and Methods for Spinal Fusion - A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites.08-23-2012
20120215315APPARATUS AND METHOD FOR STABILIZING ADJACENT BONE PORTIONS - A method and apparatus for stabilizing first and second adjacent bone portions. The method includes the steps of: providing a spacer; providing a stabilizer, with the spacer and stabilizer configured to be movable guidingly, one relative to the other, between a pre-assembly relationship and an operative relationship; and placing the spacer and stabilizer into an operative relationship with the first and second adjacent bone portions. As an incident of the spacer and stabilizer being changed from their pre-assembly relationship into the operative relationship with each other and the first and second bone portions, the spacer, stabilizer and first bone portion cooperate to cause the first bone portion and spacer to be urged towards each other. The method may be carried out by moving the stabilizer and spacer, and all auxiliary parts and handling and assembling instruments, substantially in a single plane along one line or parallel lines.08-23-2012
20120215313EXPANDABLE INTERBODY FUSION IMPLANT - Disclosed is an expandable interbody fusion implant that is configured to have an initial configuration having a first footprint width suitable for being inserted into an intervertebral space and an expanded configuration having a second footprint width that is greater than the first footprint width. The implant may include a first body member and a second body member that is pivotally coupled to the first body member. The implant may be expanded using an inflatable balloon. The implant may be expanded bilaterally such that both body members rotate relative to the other or the implant may be expanded unilaterally such that one of the body members rotates relative to the other.08-23-2012
20110208310ULTRASONIC WELDABLE SPINAL IMPLANTS AND RELATED METHODS - A spinal implant for augmenting or supporting a patient's spine including vertebrae and intervertebral discs includes a first component constructed of a thermoplastic material and a second component constructed of the thermoplastic material. The first and second components are configured for implantation into the spine such that the first component contacts the second component at a welding point in an initial implanted position. An ultrasonic probe includes a tip that is configured to selectively contact the first component and/or the second component in the initial implanted position to transform the welding point to a welding joint in a final implanted position. The first component is fixed to the second component at the weld joint in the final implanted position.08-25-2011
20130173003EXPANDABLE INTERVERTEBRAL IMPLANT - An expandable intervertebral implant includes a front wall, a back wall spaced apart from the front wall, and two side walls connecting the front wall and the back wall at their respective ends. The walls define a space. The implant further includes a bottom face, a top face, at least one engagement member with an engagement surface for engagement with the end plate of a vertebral body, a first adjusting element and a second adjusting element which are supported by a first support member and a second support member, respectively, and which cooperate with the respective support member such that the engagement member is reciprocally movable between a first end position and a second end position. In the first end position, the engagement surface does not project beyond the bottom face or the top face and in the second end position, the engagement surface at least partially projects outwardly beyond the bottom face or the top face. The first and the second support members are coupled by a coupling mechanism.07-04-2013
20130173005Intervertebral Implant - In an intervertebral implant, having an upper part that has a support face for a vertebra and a lower part that has a support face for an adjacent vertebra, on each of which parts engagement elements, which are accessible from one side of the intervertebral implant, for a manipulation instrument are disposed, in order to minimize the structural height of the intervertebral implant upon insertion into an intervertebral space, it is proposed that the upper part and lower part each have protrusions and recesses aimed at the respectively other part, which are offset laterally from one another in such a way that when the upper part has been brought close to the lower part they mesh with one another; and that the engagement elements on the upper part and on the lower part are each disposed in protrusions of these parts in such a way that the engagement elements of the upper part and lower part are located side by side and at least partly overlap in the direction of the height of the intervertebral implant.07-04-2013
20120215314Six Degree Spine Stabilization Devices and Methods - An implant stabilizes two adjacent bones of a joint, while enabling a natural kinematic relative movement of the bones. Support components are connected to each bone of the joint, and a flexible core is interposed between them. The core and at least one of the support components are provided with a smooth sliding surface upon which the core and support component may slide relative to each other, enabling a corresponding movement of the bones. The surfaces may have a mating curvature, to mimic a natural movement of the joint. The core is resilient, and may bend or compress, enabling the bones to move towards each other, and or to bend relative to each other.08-23-2012
20120316654System and Method for Installing an Annular Repair Rivet Through a Vertebral Body Port - A method for repairing a defect in the annulus of an intervertebral disc uses a port through a vertebra adjacent the disc for passage of a rivet insertion tool to place a first part of a two-part annulus repair rivet against an internal surface of the annulus adjacent the defect. A separate rivet insertion tool places a second part of the annulus repair rivet on an external surface of the annulus adjacent the defect. The first and second parts are secured together, repairing the defect.12-13-2012
20100049324EXPANDABLE INTERBODY FUSION CAGE WITH ROTATIONAL INSERT - An expandable intervertebral fusion cage that includes an inferior baseplate and a superior baseplate, an insert rotatbly received between the inferior and superior baseplates, and a guide pin coupled to the inferior and superior baseplates for facilitating the rotation of the insert. The insert includes a pair of protuberances, each of which are releasably engageable with a corresponding lock groove formed within the inferior and superior baseplates. When said insert is rotated relative to the guide pin, the protuberances engage the lock grooves, and the inferior and superior baseplates expand from a collapsed position, in which said inferior and superior baseplates are juxtaposed with one another, and an expanded position, in which said inferior and superior baseplates are diverged away from one another. As a result, the cage distracts in parallel. Tabs formed on the superior baseplate continuously engage slots formed within the inferior baseplate when the baseplates expand from their collapsed position to their expanded position.02-25-2010
20100049325HEIGHT-ADJUSTABLE INTERVERTEBRAE IMPLANT - An intervertebral implant for insertion between two vertebrae is disclosed. A first part has a first contact surface extending between its two ends a first guide surface extending out from the first contact surface. A second part has a second contact surface extending between its ends, and a second guide surface recessed into the second contact surface. The first guide surface and the second guide surface cooperate so that the first contact surface of the first part can slide relative to the second contact surface of the second part with a translation motion guided by the cooperating structures of the first and second guide surfaces. The height of the intervertebral implant can be altered by shifting the first part and the second part relative to each other by moving the contact surfaces relative to each other by using the cooperating guide surfaces.02-25-2010
20100280622SYSTEM AND METHOD FOR SPINAL FUSION - The current invention is directed to a system and method for fusing two adjacent vertebrae. In one embodiment, the vertebrae are fused by inserting a sell-broaching interbody apparatus into a disc space without the need for separately drilling and broaching. The sell-broaching interbody apparatus may include cutting flutes or other broaching means capable of cutting through the cartilaginous endplates of the vertebrae. In another embodiment, an interbody apparatus with an expanding means capable of distracting the disc space between the adjacent vertebrae is inserted into the disc space. Another embodiment includes a sleeve that fits around an interbody apparatus that has at least one opening in its outer surface leading to a cavity filled with bone and/or ortho-biological materials.11-04-2010
20100298941DYNAMIC TRIAL IMPLANTS - A trial implant system including a trial implant configured to be temporarily inserted into an intervertebral space defined by a superior vertebral body and an inferior vertebral body is disclosed. The trial implant may include a superior plate and an inferior plate coupled to the superior plate. The superior plate may have a first mating portion that defines a first articulating interface and the inferior plate may have a second mating portion that defines a second articulating interface. The second articulating interface may be configured to interact with the first articulating interface of the superior plate such that at least one of the superior plate and the inferior plate is capable of movement relative to the other. The first and second articulating interfaces may be primary or auxiliary articulating interfaces. For example, the first and second articulating interfaces may be corresponding curved surfaces or they may be corresponding engagement features.11-25-2010
20100298939Intervertebral Disc Implant - The invention relates to an intervertebral disk implant (11-25-2010
20090043392Artificial Spinal Disc - An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.02-12-2009
20120179260SPINAL IMPLANT SYSTEM AND METHOD - A spinal implant system is disclosed. The system disclosed has a first footing adapted for inter-vertebral contact with a first vertebral body, a second footing adapted for inter-vertebral contact with a second vertebral body adjacent to the first vertebral body; and, a support slideably insertable between said first footing and said second footing while said first and second footings are in-situ between said first and second vertebral bodies. The footings provide a path for the support. Distractor instruments are disclosed. Methods of use, in surgery, are also disclosed.07-12-2012
20120179261INTERBODY SPACER - An interbody spacer includes a connecting portion and a pair of leg portions extending from the connecting portion. The connecting portion and the pair of leg portions define top and bottom surfaces configured and adapted to engage first and second vertebral bodies, respectively, and inner and outer sidewalls extending between the top and bottom surfaces. In particular, the top and bottom surfaces of the leg portions include first projections defining a first angle with the respective top and bottom surfaces of the leg portions. The top and bottom surfaces of the connecting portion include second projections defining a second angle with the respective top and bottom surfaces of the connecting portion. The first and second angles are different.07-12-2012
20120179259INTERVERTEBRAL IMPLANTS, SYSTEMS, AND METHODS OF USE - An intervertebral implant frame that is configured to be attached to a spacer body can include a pair of arms that extend longitudinally from a support member such that the arms extend substantially around the spacer body. The arms may be configured to expand, crimp, or otherwise engage the spacer body to thereby hold the spacer body to the frame. The spacer body may be made from bone graft.07-12-2012
20100274357EXPANDABLE IMPLANT, INSTRUMENT, AND METHOD - Embodiments of the invention include expandable, implantable devices and methods. Devices expand linearly to provide secure fixation between or among anatomical structures. The expanded height of some embodiments is greater that twice the unexpanded height of the device. In some embodiments, an implant replaces one or more vertebral bodies of the spine.10-28-2010
20090088854SPACING DEVICE AND METHOD - A spinal device generally includes a spacing member and a fixing member. The spacing member is configured to maintain a space between adjacent vertebrae. The fixing member is adapted to maintain a position of the spacing member relative to the adjacent vertebrae. In addition, the fixing member includes a bendable portion releasably connected to the spacing member.04-02-2009
20100010634Biocompatible intervertebral spacer - An intervertebral spacer configured for insertion between two vertebrae includes two opposite plates having one or more protruding parts for immobilization in the intervertebral space, a shock absorbing element, and a rigid spacer element positioned and constrained between the plates. The rigid spacer element permits small relative movements between the plates, which are countered by the shock absorbing element.01-14-2010
20100268345INTERVERTEBRAL SPACER DEVICE - An intervertebral spacer device may include first and second plates, each having inner and outer surfaces thereof, the plates may be disposed in a spaced apart relationship such that the inner surfaces face toward one another, and the outer surfaces face away from one another, the first plate including a retaining wall extending outwardly from the inner surface of the first plate; and a belleville washer, having narrow and wide ends thereof, may be disposed with said wide end contacting said inner surface of said first plate within said retaining wall, such that a compressive load applied to the outer surfaces of said plates is counteracted by said belleville washer, said belleville washer including a plurality of radially spaced concentric groove; wherein each concentric groove of the plurality of radially spaced concentric grooves in the belleville washer may have a respective length, a respective depth along the respective length, and a respective width along the respective length, at least one of the respective depth and the respective width may be uniform along the respective length; wherein each of the plurality of radially spaced concentric grooves in the belleville washer may be at a respective distance from an outer edge of the belleville washer, wherein the depths may differ with respect to one another depending on the distances, and the widths may differ with respect to one another depending on said distances.10-21-2010
20100268344Posterior Spinal Device and Method - An intervertebral joint assembly includes an upper support and a lower support, each of which has two or more components. The upper and lower support components are arranged in situ to form the upper and lower supports, respectively. By arranging the supports in situ, the supports can be introduced from the back of the patient, for example with an arthroscope. Each of the upper and lower supports has a surface adapted to engage a vertebra and a surface adapted to engage the other support or an intermediate member to form an articulate joint which articulates the joint assembly. In some embodiments, the components of the upper and lower supports are assembled in situ, for example with pivoting, telescoping or bending, to form the upper and lower supports, respectively. The supports can be attached to vertebrae with pedicles screws, and/or other anchors attached to the supports.10-21-2010
20100268343VERTEBRAL ENDPLATE CONNECTION IMPLANT AND METHOD - Embodiments of the invention include implants and methods for connecting devices to bones, such as one or more endplates of vertebrae. Devices may include mechanisms for connecting to one or more vertebrae by extending portions of the devices through an aperture in a vertebral implant and expanding the implant within the one or more vertebrae. A fill material may be used to drive the expansion in some embodiments.10-21-2010
20100222885ARTIFICIAL INTERVERTEBRAL DISC - An artificial intervertebral disc for implantation between two adjacent vertebrae includes superior and inferior shells connected in a ball and socket arrangement. The inferior shell preferably incorporating a convex portion that cooperates with a concave portion on the superior shell. A resilient nucleus is provided within an enclosure defined by the opposing inner surfaces of the shells and biases the shells against each other. The ball portion can be provided in either fixed or slidable arrangement. The artificial disc of the invention includes various resistance means for restricting and limiting the range of rotational and translational motion between the shells.09-02-2010
20120259416LATERALLY EXPANDABLE INTERBODY SPINAL FUSION IMPLANT - A spinal implant particularly adapted for lateral expansion while disposed in the disc space between adjacent vertebrae. The implant includes a first frame member pivotally linked to a second frame member via at least one, and preferably multiple, pivoting links. The implant may be inserted into the disc space in a collapsed configuration using a lateral approach, and then expanded in the anterior-posterior direction (lateral to insertion direction) to a deployed configuration where the first and second frame members are farther apart. The implant may be expanded by holding one frame member and pushing on the other frame member or one or more proximal links linking the two frame members.10-11-2012
20120191198CERVICAL INTERVERTEBRAL PROSTEHSIS - An intervertebral disc prosthesis having two cover plates and a prosthesis core that extends to the circumferential edge of the cover plates. The prosthesis core is mounted to the lower cover plate and forms a spherical sliding surface with the upper cover plate. The connection surface of the cover plates may be set back from the circumferential perimeter of the cover plates to provide an optimum size of the spherical sliding surface despite the set-back nature of the connection surface. The set-back is configured as an inclined transition surface that adjoins the connection surface to the circumferential edge. The set-back allows the intervertebral disc prosthesis to be fully inserted into the prepared disc space into the spared dorsolateral corners without protruding ventrally.07-26-2012
20120191194INTERVERTEBRAL IMPLANT - An adjustable spinal fusion intervertebral implant is provided that can comprise upper and lower body portions that can each have proximal and distal wedge surfaces disposed at proximal and distal ends thereof. An actuator shaft disposed intermediate the upper and lower body portions can be actuated to cause proximal and distal protrusions to converge towards each other and contact the respective ones of the proximal and distal wedge surfaces. Such contact can thereby transfer the longitudinal movement of the proximal and distal protrusions against the proximal and distal wedge surfaces to cause the separation of the upper and lower body portions, thereby expanding the intervertebral implant.07-26-2012
20090018660HYBRID FUSION/ARTHROPLASTY DEVICE - The present embodiments relate to a joint treatment device for improved treatment of a diseased joint. The joint treatment device comprises first and second components, which are coupled to first and second bone portions, respectively, at the joint. The first component and the second component are configured to be coupled together in a first configuration to promote fusion of the joint, and further are configured to be coupled together in a second configuration to promote arthroplasty of the joint. Additionally, a screwdriver is disclosed that may advance the first and second component simultaneously or independently. Further, a joint distraction device is disclosed, which may be used to vary spacing between the first bone portion and the second bone portion at the joint.01-15-2009
20120232661MULTI-LOBE ARTIFICIAL SPINE JOINT - An artificial disc is provided which more closely matches the movement of the natural spine. The artificial disc uses one or more projections and corresponding recesses to provide a sliding articulation. The artificial joint is inherently stable in that compressive forces placed on the disc such as the weight placed upon the joint or the tension of surrounding tissues urges the joint towards a neutral position and not farther away from a neutral position.09-13-2012
20120232664INSTRUMENTS AND INTERBODY SPINAL IMPLANTS ENHANCING DISC SPACE DISTRACTION - An apparatus for distracting a disc space having an annulus. The apparatus includes a spinal implant having a pre-determined size sufficient to balance frictional fit in the disc space and elongation of the annulus. The implant has a top surface, a bottom surface, opposing lateral sides, and opposing anterior and posterior portions defining a substantially hollow center and a single vertical aperture. At least one of the opposing anterior and posterior portions presents a substantially flat impact face including an opening with an instrument retention feature. The apparatus also includes a rasp, a plurality of distractors, and an instrument able to engage and manipulate the spinal implant, the rasp, and the plurality of distractors. The size-specific rasp is adapted to clear the disc space of all soft tissue and cartilage. The plurality of distractors have progressively increasing heights adapted to distract the disc space before use of the spinal implant.09-13-2012
20080306597INVERTEBRAL DISC PROSTHESIS FOR THE CERVICAL SPINE IN THE DOG - A cervical disc prosthesis or invertebral disc prosthesis that includes a first disc comprising a protrusion connected to a disc body and a convex surface facing a first cervical vertebra when implanted, and a second disc comprising a socket recessed in a disc body, and a convex surface facing a second cervical vertebra when implanted. The second disc remains substantially parallel to the first disc and axially spaced from the first disc. The protrusion is adapted to fit into the socket to join the first disc with the second disc, and the protrusion is fit for pivoting movement into the socket. Also provided is a method for implanting the inventive cervical disc prosthesis or the inventive invertebral disc prosthesis into an intervertebral disc area defined between two adjacent vertebrae.12-11-2008
20080300688INTERVERTEBRAL IMPLANT COMPONENT WITH THREE POINTS OF CONTACT - A method of implanting an intervertebral implant or component thereof, in which each component is selected to have an inner surface and an outer surface which engages an adjacent vertebra and presents only three distinct points of contact with a cortical rim of the vertebra. The outer surface is selected to have a footprint which is sized to be within that of the cortical rim. In disclosed embodiments, the footprint can be convexo-concave shaped or kidney shaped. The intervertebral implant can be provided with upper and lower (or first and second) components which engage adjacent first and second vertebrae and which move relative to one another. The implant has both the first and second outer surfaces sized to present a respective footprint sufficient for two lateral-anterior and one posterior points of contact with an adjacent cortical rim of the respective first and second vertebra.12-04-2008
20110004312Device and Method for Distraction of the Spinal Disc Space - An extractable device is used to insert a medicinal filling into a spinal disc. The device comprises a filling member and a flowable medicine. The filling member is made of a flexible and permeable wall and is provided with a holding portion and an injection port via which the flowable medicine is injected into the holding portion after the filling member is inserted into the spinal disc. The holding portion is provided with an opening which is releasably lashed by one end of one or more threads so as to make the opening leakproof. Upon completion of solidification of the flowable medicine in the holding portion of the filling member, other end of the thread is pulled to unlash the opening of the holding portion, thereby enabling the filling member to be extracted from the spinal disc so as to leave only the medicine in the spinal disc.01-06-2011
20110004310Lordotic interbody spinal fusion implants - The present application is directed to interbody spinal fusion implants having a structural configuration that provides for the maintaining and creating of the normal anatomic angular relationship of two adjacent vertebrae of the spine to maintain and create spinal lordosis. The spinal fusion implants are sized to fit within the disc space created by the removal of disc material between two adjacent vertebrae and conform wholly or in part to the disc space created. The spinal fusion implants of the present invention have upper and lower surfaces that form a support structure for bearing against the end plates of the adjacent vertebrae. The upper and lower surfaces are disposed in a converging angular relationship to each other such that the implants have an overall “wedged-shape” in an elevational side view. The angular relationship of the upper and lower surfaces places and maintains the vertebrae adjacent to those surfaces in an angular relationship to each other, creating and maintaining the desired lordosis.01-06-2011
20120239154ENDPLATE-PRESERVING SPINAL IMPLANT WITH AN INTEGRATION PLATE HAVING DURABLE CONNECTORS - An interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, a substantially hollow center, and single vertical aperture, as well as an integration plate having a roughened surface topography on its top surface. The integration plate and implant body are joined together durable, complementary tongue and groove connections.09-20-2012
20120239153ENDPLATE-PRESERVING SPINAL IMPLANT HAVING A RAISED EXPULSION-RESISTANT EDGE - An interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, a substantially hollow center, and single vertical aperture, as well as an integration plate having a roughened surface topography on its top surface. The integration plate and implant body are joined together with a durable connection.09-20-2012
20120239152ENDPLATE-PRESERVING SPINAL IMPLANT WITH AN INTEGRATION PLATE HAVING A ROUGHENED SURFACE TOPOGRAPHY - An interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, a substantially hollow center, and single vertical aperture, as well as an integration plate having a roughened surface topography on its top surface.09-20-2012
20120239151METHOD OF USING INSTRUMENTS AND INTERBODY SPINAL IMPLANTS TO ENHANCE DISTRACTION - A method of using an interbody spinal implant by implanting the spinal implant into a patient in need of the spinal implant. The method includes accessing the disc space of the patient and locating the center of the disc space. The disc space is incised by making a window in the annulus of the disc space for insertion of the spinal implant. The endplates are cleaned of all cartilage and the disc structure, which is encapsulated by the annulus, is removed while avoiding damage to the endplate structure of the vertebrae. Optionally a size-specific rasp is selected and the disc space is cleared of all soft tissue and cartilage. Optionally the disc space is distracted by sequentially expanding it with distractors of progressively increasing heights. A spinal implant having a pre-determined size sufficient to balance frictional fit and elongation of the annulus is selected and seated in the disc space.09-20-2012
20120239150Friction Fit and Vertebral Endplate-Preserving Spinal Implant - An interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, a substantially hollow center, a single vertical aperture, and a roughened surface topography on at least the top surface. The posterior portion has a generally rounded nose profile, and has a shorter height than the anterior portion such that the spinal implant comprises a lordotic angle for aligning the spine of a patient. The junctions of the top and bottom surfaces and the anterior portion comprise a sharp edge to resist expulsion of the spinal implant upon implantation.09-20-2012
20120239149APPARATUS FOR REPLACING A DAMAGED SPINAL DISC - An apparatus for replacing a damaged spinal disc in a spinal column includes a first retaining device having an outer surface engageable with a first vertebra of the spinal column and an inner surface. A second retaining device has an outer surface engageable with a second vertebra of the spinal column and an inner surface. A resilient core has a first surface and a second surface. The first surface engages the inner surface of the first retaining device. The second surface engages the inner surface of the second retaining device. The resilient core has a tapered radially outer surface extending from adjacent the first surface to adjacent the second surface. The first retaining device may have a flange extending toward the second retaining device. A concave surface may extend between the first surface and the radially outer surface. The concave surface of the core may engage the flange when the apparatus is free of a load.09-20-2012
20120265310SPINE SURGERY METHOD AND INSERTER - A surgical inserter for use in inserting an implant into a vertebral space may include: (a) a handle; (b) a gripper having one end attached to the handle and a second end having a pair of arms; and (c) a grip activator having an opening that threadingly receives the gripper. The grip activator can be rotated in a first direction with respect to the gripper to cause the arms to move toward each other to grip the inserter and in a second direction with respect to the gripper to cause the arms to move away from each other to release the inserter. In one embodiment a compression force activator is used to deploy the implant and in another embodiment a tension force activator is used to deploy the implant.10-18-2012
20120265311Intervertebral Implant Facilitating Unilateral Placement, Instruments and Methods - Implants, tools and methods for performing unilateral posterior lumbar interbody fusion are provided. An interbody implant includes a body having a top and bottom surface extending along a length thereof; and first and second side surfaces extending between the top and bottom surfaces on opposite sides of the body. The height of the first side surface is greater than the height of the second side surface.10-18-2012
20120265309Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.10-18-2012
20120265307Implantable Intervertebral Fusion Device - The present application relates to an implantable intervertebral fusion device for use when surgical fusion of vertebral bodies is indicated. The implant is comprised of bone conforming in size and shape with the end plates of the adjacent vertebrae and has a wedge-shaped profile with a plurality of footings and grooves located on the top and bottom surfaces.10-18-2012
20120323329METHODS AND APPARATUSES FOR VERTEBRAL BODY DISTRACTION AND FUSION EMPLOYING A COAXIAL SCREW GEAR SLEEVE MECHANISM - Improved methods and apparatuses for vertebral body distraction and fusion in accordance with various embodiments of the present invention employ one or more coaxial screw gear sleeve mechanisms. In various embodiments, coaxial screw gear sleeve mechanisms include a post with a threaded exterior surface and a corresponding sleeve configured to surround the post, the corresponding sleeve having a threaded interior surface configured to interface with the threaded exterior surface of the post and a geared exterior surface. A drive mechanism can be configured to interface with the geared exterior surface of the sleeve, causing the device to distract.12-20-2012
20110046741Total disc implant - A total disc implant (TDI) is provided for total replacement of a spinal disc or discs in a human patient or other mammal, wherein the TDI is designed to maintain a substantially full range of natural motion (ROM) following implantation. The TDI generally comprises, in one preferred form, upper and lower end plates for affixation to adjacent vertebral bodies, with an intervening insert disposed therebetween. The end plates each include elongated part-cylindrical surfaces oriented generally perpendicular to each other, with one of said surfaces extending in an anterior-posterior direction and the other extending in a medial-lateral direction. The intervening insert defines concave upper and lower part-cylindrical seats oriented for respectively engaging these part-cylindrical surfaces, wherein these part-cylindrical seats are defined by offset radii to include a somewhat flattened central base region merging smoothly with upwardly curving radiused sides.02-24-2011
20120330425SYSTEMS AND METHODS FOR DELIVERING AN IMPLANT BETWEEN ADJACENT VERTEBRAS USING ENDOSCOPY - An optical intervertebral implantation system can be used for a method of implanting an intervertebral implant into an intervertebral space with visualization. The system can include an elongate light guide and an intervertebral implant operably coupled with the elongate light guide. The elongate light guide can be configured as a guide wire and received through an aperture of the implant. The elongate light guide can be configured as a guide wire and the implant is received over and slides along on outside surface of the elongate light guide. The elongate light guide can be configured as a cannula having an internal conduit and the implant is received within the conduit. The elongate light guide can be configured as a cannula with an internal conduit and the implant is slidably coupled with an internal surface of the internal conduit of the cannula.12-27-2012
20120330426Expandable Vertebral Implant - The present invention relates to an expandable implant for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.12-27-2012
20120330422Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.12-27-2012
20120330423Engineered Scaffolds for Intervertebral Disc Repair and Regeneration and for Articulating Joint Repair and Regeneration - Methods for the engineering and preparation of intervertebral disc repair scaffolds and articulating joint repair scaffolds are disclosed. The methodology utilizes either magnetic resonance images or combined magnetic resonance and computed tomography images as a template for creating either the intervertebral scaffold or the joint repair scaffold (e.g., osteochondral scaffold) with fixation to the underlying bone. The disc scaffold design may include an outer annulus that may contain desired structures and a central nucleus pulposus region that could either contain a designed microstructure or a contained hydrogel. The osteochondral scaffold may include a bone compartment interface with a cartilage compartment. The bone compartment may interface with a cutout portion of the bone through fixation components. Different microstructure designs may be created for the bone and cartilage compartment to represent desired mechanical and mass transport properties. The microstructure controls elastic and permeability property distribution within the scaffold.12-27-2012
20120330421Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.12-27-2012
20120330420SPINAL FUSION IMPLANTS - An improved implant is provided for human implantation, such as a spinal implant for implantation into the intervertebral space between two adjacent vertebrae. Some embodiments include a substrate of high strength biocompatible material, such as doped silicon nitride ceramic for example. In some embodiments, the substrate may also include one or more regions of a controlled porosity analogous to natural bone. In other embodiments, the substrate may comprise the entire implant.12-27-2012
20120323330LOW PROFILE INTERVERTEBRAL IMPLANT - The present invention is directed to a low profile intervertebral implant (12-20-2012
20120271424SPINAL SURGERY APPARATUS AND METHOD - An apparatus and method for performing specific types of spinal surgeries make the surgeries easier and safer to perform. The apparatus and method assist in permanently locating a fusion cage within a spine.10-25-2012
20120323331SPINAL IMPLANT AND INSTRUMENTS - A kit including an artificial implant for insertion between two adjacent vertebrae along a coronal plane.12-20-2012
20120323332SPACERLESS ARTIFICIAL DISC REPLACEMENTS - Spacerless artificial disc replacements (ADR) are disclosed. One preferred embodiment includes two saddle-shaped components to facilitate more normal spinal flexion, extension, and lateral bending while limit axial rotation, thereby protecting the facet joints and the annulus fibrosus (AF). Either or both of the superior and inferior components are made of a hard material such as chrome cobalt, titanium, or a ceramic including alumina, zirconia, or calcium phosphate. The articulating surfaces of the ADR are also preferably highly polished to reduce friction between the components. Metals, alloys or other materials with shape-memory characteristics may also prove beneficial.12-20-2012
20120323328Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.12-20-2012
20110218632SURGICAL IMPLANTS - Systems and methods for replacement of an intervertebral disc are provided. The spinal implant comprises an elastomeric material that has been treated with an additive to decrease the ability of emissions to pass through the elastomeric material and to increase at least one of wear resistance, stiffness, and Shore hardness of the elastomeric material. The additive may be a barium-containing compound, one or more metals, or one or more x-ray opaque materials. The additive may be included in certain localities of the implant. A series of implants may be provided with different sizes and different structural properties that mimic the stiffness and shock absorbing properties of the natural intervertebral disc to be replaced.09-08-2011
20110218631ADJUSTABLE INTERVERTEBRAL IMPLANT - An adjustable intervertebral implant (09-08-2011
20120323327Expandable Spinal Implant and Flexible Driver - Expandable spinal implants and drivers connected by a bendable joint are disclosed. The flexible connector allows the implant and driver to move to different angular orientations with respect to each other, and to apply rotational force or torque from the driver to the implant and its expansion mechanism. During insertion of an implant into the desired position, the driver may be oriented in the same or different direction than the long axis of the implant. After the spinal implant is placed in the desired position, the driver is used to expand the implant in selected dimensions.12-20-2012
20110238184METHODS AND INSTRUMENTS FOR INTERBODY FUSION - A laparoscopic surgical technique is provided for preparing a site for implantation of a novel fusion device or implant. In accordance with one embodiment of the technique, a laparoscope is provided having an outer sleeve with distraction fingers at one end to distract the disc space. The laparoscope provides a sealed working channel to the disc space, through which the disc space is distracted, the vertebral endplates and surrounding disc is reamed, and the fusion device inserted. A distraction plug is provided for centering the outer sleeve and for providing midline distraction of the disc space. In one embodiment, a fusion device includes diverging bone screws passing through an end wall and upper and lower walls of the device to engage the adjacent vertebrae. In another embodiment, a connector plate is engaged to bilaterally position fusion devices to prevent rotation and resist expulsion of the devices from the disc space.09-29-2011
20110238183Interbody Fusion Device - An interbody fusion device, or bone dowel for mending of joints is disclosed herein. The device comprises anti-migration ridges having optimum geometry to avoid failure during the insertion process while providing boney ingrowth in the body's natural healing process. A tapered head portion and a cylindrical body without threads are further included herein. Also, the device provides novel means for engagement to an insertion tool. Additional methods are disclosed herein to maintain and insert a device without torsional stresses due to torquing.09-29-2011
20100234957ARTIFICAL DISC IMPLANT - An artificial disc implant includes an upper shell, a lower shell, and a spacer therebetween. The spacer preferably has properties similar to that of a natural spinal disc, while the upper and lower shells form a rigid interface between the implant and the adjacent vertebral bodies. The upper and lower shells can be configured to prevent expulsion of the spacer from the disc space. The implant upper and lower shells may further be configured into partially cylindrical shapes for ease of insertion through an insertion tube as presently known for interbody fusion devices. The devices may further be configured for insertion through a double-barreled insertion tube. Methods and instruments for inserting an artificial disc implant are also provided.09-16-2010
20100234956EXPANDING CAGE FOR VERTEBRAL SURGERY - The disclosure relates to an expanding device intended to be implanted between the vertebral end-plates of two adjacent vertebrae, in particular for a stabilisation operation for intervertebral fusion. The inventive device comprises: a cage forming a peripheral part that surrounds a central cavity, said peripheral part being formed by a leading edge and a thicker manipulation edge which are connected by two lateral edges provided with lateral housings; and a retractor received in the lateral housings, which can be moved between an insertion position, in which it is located close to the manipulation edge, and a locking position, in which it is located at the leading edge, increasing the height of same. The invention is characterised in that the retractor is provided with abutment means designed to maintain the retractor in the locking position and to oppose the release of the retractor from the cage.09-16-2010
20100234955FIBROUS SCAFFOLD FOR USE IN SOFT TISSUE ENGINEERING - The present invention relates to a fibrous scaffold for use as a substrate in soft tissue applications, in particular for preparing annulus fibrosus (AF) tissue. In aspects, the present invention also relates to an engineered biological material comprising AF tissue; constructs comprising one or more engineered biological materials; methods for producing the biological materials and constructs; and methods of using the biological materials and constructs.09-16-2010
20120277869INTERVERTEBRAL IMPLANT FOR THE FUSION BETWEEN TWO VERTEBRAL BODIES OF A VERTEBRAL COLUMN AND CORRESPONDING POSITIONING INSTRUMENT - An intervertebral implant for the fusion between two vertebral bodies of a vertebral column may include a body having two opposite surfaces and holes or cavities for filling purposes during bone growth, and an engagement portion for receiving a gripping end of a positioning instrument. The engagement portion may be shaped as a splined shaft accessible through an opening of the body.11-01-2012
20120277865EXPANDABLE IMPLANT SYSTEM AND METHODS OF USE - An implant includes a first component including a wall that defines a first surface and a second surface. The first surface defines a first opening and the second surface defines a second opening. The second opening is spaced apart from the first opening to define a cavity therebetween. A second component is supported by the first component and configured for movement relative thereto. The second component is movable between a first configuration such that the second component is disposed between the first opening and the second opening within the cavity and a second, expanded configuration such that the second component simultaneously passes through the first and second openings to extend from the cavity. Methods of use are also disclosed.11-01-2012
20120277867Interbody fusion device and associated methods - A medical device comprising a non-enclosed housing configured to fit between two adjacent vertebrae; one or more housing fasteners extending at least partially through the housing, one or more driving mechanisms operationally positioned in relationship to at least one housing fastener, such that activation of at least one driving mechanism engages and drives at least one housing fastener to compress into at least one adjacent vertebrae and one or more plates removably coupled to the housing.11-01-2012
20120277866Angled Bullet-Nose Banana Cage - A banana-shaped cage adapted for use as an intervertebral fusion cage, wherein the leading direction of the nose of the banana cage is substantially in-line with the angle of the inserter shaft that inserts the cage into the disc space. It has been found that insertion of this cage requires lower insertion forces than the conventional cage whose leading direction substantially follows the arc of the banana curve.11-01-2012
20120277864CANNULA ASSEMBLY WITH NON-CIRCULAR PROFILE AND METHOD OF USE - A cannula assembly and related methods of use. The cannula assembly includes a cannula and a stylet. The cannula has an outer surface that is non-circular. Rotation of the cannula about its longitudinal axis changes the orientation of the cannula's larger outer dimension so that the cannula may be used as a distraction tool. Rotation is effected by rotating a stylet handle, which rotates the associated stylet shaft, which in turn rotates the cannula. Related methods include rotating a handle of the stylet, while the shaft of the stylet is disposed in the bore of the cannula, about the first longitudinal axis so as to rotate the cannula about the longitudinal axis to distract vertebral bodies.11-01-2012
20120277878Expandable Corpectomy Spinal Fusion Cage - An intervertebral expandable spacer having a pair of co-axial annuluses locked together by an engagement member having i) a set screw and ii) a pressure plate having an outer face contacting the set screw and an inner face having teeth adapted to mate with the ratchet notches of the second member.11-01-2012
20120277876SPINAL IMPLANT HAVING A PASSAGE FOR ENHANCING CONTACT BETWEEN BONE GRAFT MATERIAL AND CORTICAL ENDPLATE BONE - An interbody spinal implant including a body having a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, and a substantially hollow center in communication with a vertical aperture, which are filled with a bone graft material. The dimensions, shape, and position of the vertical aperture facilitate contact between the bone graft material and vertebral endplate bone to support and enhance bone growth.11-01-2012
20120277875SPINAL FUSION CAGE HAVING POST-OPERATIVE ADJUSTABLE DIMENSIONS - A spinal implant including first spinal attachment member for attaching to a first spinal portion, second spinal attachment member for attaching to a second spinal portion, and a post-implantation variable dimension device disposed between the first and second spinal attachment members, which is operable after completing surgery in which said spinal implant was installed into a patient, to cause relative movement between the first and second spinal attachment members.11-01-2012
20120277874BONE IMPLANTS, SYSTEMS AND METHODS - An implantable elastic material configured for use with bone implants is provided with a wire wound in an axially expanded coil form, with the expanded coil formed into a tight mesh. In some embodiments, the wire is formed from a titanium alloy. Methods of manufacturing the implantable material, and implantable devices comprising the material are also disclosed.11-01-2012
20120277877INTERVERTEBRAL SPACER AND INSERTION TOOL PROVIDING MULTIPLE ANGLES OF INSERTION - An intervertebral spacer can have a leading end and a trailing end that includes an engaging portion configured to securely engage complementary features of an insertion tool at any of a plurality of different angles. The engaging portion can have a first radius and a major axis extending from the leading end to the trailing end. The trailing end can have a channel formed around a partially cylindrical portion having a second radius that is less than the first radius. The channel can be configured to accept an extending portion of the insertion tool.11-01-2012
20100168862Expandable Intervertebral Spacers and Methods of Use - An intervertebral spacer is inserted between vertebral members in a compact configuration and expanded post-insertion to contact the adjacent vertebral members. The intervertebral spacer comprises a first member and a second member movable with respect to the first member between retracted and extended positions.07-01-2010
20100168861Method, System and Apparatus for Interbody Fusion - Methods, systems and apparatus are provided for interbody fusion. In some embodiments, a device is provided for fusing vertebral bodies. The device includes a shell configured to be disposed between a first body and a second body, an injection opening to receive fusing material, and a delivery hole configured to enable fusing material to flow into at least one of the first body and the second body.07-01-2010
20100168863SPINAL DISC PROSTHESIS SYSTEM - A disc prosthesis is provided. The disc prosthesis includes a concave surface attached to a first base and a convex surface attached to a second base. The concave surface and the convex surface together form a rotating joint, and at least one of the concave and convex surfaces is attached to its base through at least one flexible support capable of flexing to provide shock absorption when the artificial disc prosthesis is disposed between two vertebra.07-01-2010
20120283834Intervertebral body fusion implant device - An intervertebral body fusion implant device configured for being engaged between two adjacent vertebrae comprises an implant device body having an upper bone engaging portion and a lower bone engaging portion, a plurality of protrusions extending from each one of the upper and lower bone engaging portions, and a guide rail extending from each one of the bone engaging portions. A passage extends between the upper bone engaging portion and the lower bone engaging portion. The guide rail of each one of the bone engaging portions extends beyond a tip portion of each one of the protrusions thereof Each one of the guide rails extends substantially parallel with each other one of the guide rails.11-08-2012
20120089231INTERVERTEBRAL IMPLANT AND TOOL FOR PLACING SAME - The invention relates to an intervertebral implant (04-12-2012
20120089230INTERVERTEBRAL DISC PROSTHESIS WITH TRANSVERSALLY ARCHED, CURVED CYLINDRICAL ARTICULATION SURFACES FOR THE LUMBAR AND CERVICAL SPINE - An intervertebral disc prosthesis for the total replacement of a intervertebral disc within the lumbar and cervical spine is disclosed. The intervertebral disc prosthesis comprises articulating sliding partners and at least one sliding surface that is between two sliding partners. Two part designs are described in which only a dorsoventral- and rotational movement is possible as a result of laterolaterally aimed, transversally arched, ventrally curved cylindrical convexity(ies) and corresponding concavity(ies), without an inclination of the sliding partners in a lateral direction. In a further design, the cylindrical articulation surfaces have no curvature, enabling a motion of the sliding partners in only a ventrodorsal direction. According to the invention, the intervertebral disk prostheses are suited for implantation from lateral and ventrolateral, particularly in revision surgeries.04-12-2012
20120089229METHOD AND APPARATUS FOR INTERVERTEBRAL DISC SUPPORT AND REPAIR - An intervertebral disc device is provided to support or repair one or both of the disc annulus and the disc nucleus. The intervertebral disc device includes an annulus support and an elongated member to support the disc nucleus. The disc annulus support has an elongated wire and an annulus closure. The disc nucleus has an elongated member that is expandable. Any of the devices can be loaded with biologics. Moreover, any of the devices may include a scarring factor to promote fibrous growth.04-12-2012
20120089228LORDOTIC EXPANDABLE INTERBODY IMPLANT AND METHOD - The present disclosure relates to an intervertebral implant that can be surgically introduced between adjacent vertebral bodies and adjusted or expanded in situ to occupy an optimal or desired space between the vertebral bodies. The implant is preferably inserted into the evacuated disc space obliquely and then oriented so as to extend laterally across the anterior adjacent vertebrae bodies occupying the disc space with the outer ends of the implant being supported by the cortical rims on the opposite sides of the vertebrae bodies. The implant has two body members with a space therebetween so the implant may be then distracted and a spacer of a, predetermined thickness may be inserted within the space between the body members so as to maintain a desired amount of distraction. The upper and lower surfaces of the implant may have a desired lordotic angle. A method of using an implant is also disclosed.04-12-2012
20110276141INTERVERTEBRAL SPACER, SYSTEM AND METHOD TO DISTRACT ADJACENT VERTEBRAE AND INSERT A SPACER - Intervertebral spacer being a longitudinal body with a cross-section that has a long axis and a short axis, at least one component of which may be deployed following an axis that is essentially perpendicular to the longitudinal body's long axis and to the axis of the spine.11-10-2011
20110276140METHOD AND APPARATUS FOR IMPLANTING A HYDROGEL PROSTHESIS FOR A NUCLEUS PULPOSUS - An instrument for inserting an elongated hydrogel prosthesis into an intervertebral disc includes an insertion cannula that is inserted through the annulus fibrosus of an intervertebral disc to provide access to the nucleus region of the disc, an elongated hydrogel prosthesis packaged within a tubular container adapted to be coupled to a proximal end of the insertion cannula, and a source of fluid pressure adapted to be coupled to a proximal end of the tubular container. Auxiliary instruments for use in convenient insertion of the insertion cannula through the nucleus pulposus and providing for a complete and controlled passage of the hydrogel prosthesis through the insertion cannula are provided in a kit with the insertion cannula. A sizing apparatus for determining the volume of prosthesis to be inserted includes a catheter or cannula capable of being inserted through the insertion cannula into the nucleus region of the intervertebral disc and having at its distal end a balloon capable of being inflated within the intervertebral disc with a measurable volume of a fluid in order to determine the amount of hydrogel prosthesis to be injected.11-10-2011
20120330419BI-DIRECTIONAL FIXATING/LOCKING TRANSVERTEBRAL BODY SCREW/INTERVERTEBRAL CAGE STAND-ALONE CONSTRUCTS - A bi-directional fixating transvertebral (BDFT) screw/cage apparatus is provided. The BDFT apparatus includes an intervertebral cage including a plurality of internal angled screw guides, a plurality of screw members, and a cage indentation adjacent to the screw guides that independently or supplemented by other screw locking mechanisms prevents the screw members from pulling out of the internal angled screw guides. The internal angled screw guides orient a first screw member superiorly and a second screw member inferiorly. The intervertebral cage is adapted for posterior lumbar intervertebral placement, anterior lumbar intervertebral placement, anterio-lateral thoracic intervertebral placement, or anterior cervical intervertebral placement.12-27-2012
20120330424Intervertebral disc prosthesis - The present invention relates to an intervertebral disc prosthesis comprising at least three pieces including an upper plate (12-27-2012
20110320003Artificial Spinal Disc - An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.12-29-2011
20110320002SPINAL FUSION IMPLANT - The present invention provides a device and methodology for use in spinal fusion surgeries. An implant is proved for forming a rigid structure between adjoining vertebrae in a patient. The implant is a cage defined by at least a first end, second end, first side, and second side surface, wherein first and second side surfaces extend substantially parallel to each other to span a space between adjoining vertebrae and first and second ends interconnect said first side surface and second side surface. The cage incorporates one or more flexible joints that allow the cage to be deformed for insertion into a patient. The ability to deform the cage allows a greater ease and flexibility in inserting and positioning the implant.12-29-2011
20110320001REVISION SPACER - An intervertebral fusion device for promoting fusion of first and second vertebrae comprises first and second endplate modules. Each endplate module includes an outer surface adapted to interface with vertebral bone and an opposite inner surface. The endplate modules further include an attachment feature. A central module is adapted to extend between the first and second endplate modules and is further adapted for connection with the attachment feature. A through passage extends through the outer and inner surfaces of the each of the first and second endplates and through the central module.12-29-2011
20110320000Multi-Segment Lateral Cage Adapted to Flex Substantially in the Coronal Plane - The present invention concerns several fusion devices and methods for laterally inserting a fusion device at an initial trajectory that is not parallel to the disc space. Each fusion device incorporates components that enable flexing, bending or pivoting of the device during its final approach to the prepared disc space.12-29-2011
20110319998Universal Trial for Lateral Cages - A method of trialing an intervertebral disc space, comprising the steps of: 12-29-2011
20120290097EXPANDABLE INTERVERTEBRAL IMPLANT - A method of inserting an expandable intervertebral implant is disclosed. The implant preferably includes first and second members capable of being expanded upon movement of first and second wedges. The first and second wedges, while being capable of moving with respect to each other and the first and second members are also preferably attached to the first and second members. In addition, the first and second wedges are preferably capable of moving only in a first direction, while movement in a second direction is inhibited. The first and second wedges are also preferably prevented from torsionally moving with respect to the first and second members.11-15-2012
20120290092SPINAL IMPLANTS - The present invention is directed to a variety of spinal implants.11-15-2012
20120290096FLEXIBLE ELONGATED CHAIN IMPLANT AND METHOD OF SUPPORTING BODY TISSUE WITH SAME - Implants and methods for augmentation of the disc space between two vertebral bodies to treat disease or abnormal pathology conditions in spinal applications. The implant includes a chain of biocompatible material suitable for insertion into a disc space between two adjacent vertebral bodies in a patient's spinal column, wherein the spinal disc space has a transverse plane. The chain comprises a plurality of adjacent bodies having a height configured to reside within the disc space between two adjacent vertebral bodies and a length configured to reside in the disc space between two adjacent vertebral bodies when the chain is curved in an orientation substantially along the transverse plane of the spinal disc space.11-15-2012
20120290093Transforaminal Prosthetic Spinal Disc Apparatus - An intervertebral prosthetic implant having a first endplate having a first surface configured to substantially engage with a first vertebral body and a second surface having an extension with a concave contact surface, the concave contact surface being spaced apart from the second surface. A second endplate is provided with a first surface configured to substantially engage with a second vertebral body and a second surface comprising a convex contact surface, and the second endplate having a securing element positioned along and above the second surface defining a first and second window on opposing sides of the second surface. The securing element extends along the width and length of the lower endplate and configured with an access hole. An extension portion extends from the first surface of the first endplate through the access hole of the securing element and contacts the second surface of the second endplate.11-15-2012
20120290095TISSUE PROSTHESIS AND A METHOD OF, AND EQUIPMENT FOR, FORMING A TISSUE PROSTHESIS - A tissue prosthesis 11-15-2012
20120290091PROSTHETIC IMPLANT WITH BIPLANAR ANGULATION AND COMPOUND ANGLES - A prosthetic implant, and more particularly, with a prosthetic implant having biplanar angulation and that can be inserted into a disk area generally straight using a posterolateral approach.11-15-2012
20120290094MINIMALLY INVASIVE EXPANDING SPACER AND METHOD - A minimally invasive spacer for positioning between vertebral members. The spacer is adjustable between a first orientation having a reduced size to facilitate insertion between the vertebral members. A second orientation has an enlarged size for contacting the vertebral members. The spacer includes linkages that are attached to a pair of plates. A pull arm is operatively connected to the linkages for adjusting the spacer from the first orientation to the second orientation. A indicator gauge indicates the height of the spacer.11-15-2012
20120290090Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.11-15-2012
20130023996VERTEBRAL JOINT IMPLANTS AND DELIVERY TOOLS - A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.01-24-2013
20130023995VERTEBRAL JOINT IMPLANTS AND DELIVERY TOOLS - A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.01-24-2013
20130023994Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.01-24-2013
20130023997SYSTEM FOR REPLACING AN INTERVERTEBRAL DISC - System for replacing a disk between two vertebrae includes an intervertebral cage having an oblong body including at least two portions and separated by a gap extending along a curved axis and opening out through an opening at a first end of the body, and at least one introducer guide rod, a curved longitudinal core having cross-sections substantially complementary to the cross-sections of the gap so as to enable the core and the two portions of the body to slide relative to one another, elements for mounting a first end of the core to co-operate with an end of the guide rod so that the curved core projects from the end, and a push rod mounted to move relative to the guide rod so as to come into contact via one end against the end of the body in order to push the body in translation relative to the core.01-24-2013
20130023992BI-DIRECTIONAL FIXATING/LOCKING TRANSVERTEBRAL BODY SCREW/INTERVERTEBRAL CAGE STAND-ALONE CONSTRUCTS - A bi-directional fixating transvertebral (BDFT) screw/cage apparatus includes an intervertebral cage having a plurality of internal angled screw guides and screw members and a screw locking mechanism. The screw locking mechanism has leaf springs mechanically interacting with ratcheted screw heads of the screws and allowing the ratchet teeth of the screw heads to rotate only in a penetrating direction and preventing rotation of the screw head in an opposite direction. The intervertebral cage is adapted for posterior lumbar intervertebral placement, anterior lumbar intervertebral placement, anterio-lateral thoracic intervertebral placement, or anterior cervical intervertebral placement.01-24-2013
20130013074STAND-ALONE BIOMIMETIC ARTIFICIAL INTERVERTEBRAL DISC SYSTEM - The artificial intervertebral disc of the present invention includes: a structured fabric having biomimetic structure and dynamic behavior, the structure comprising organic fibers, which are formed to be a cubic multi-axial three-dimensional fabric having tri-axial, to be interwoven tissues or to be a complex tissue of these; and tappets mounted on the upper surface and the lower surface of this structured fabric, wherein the tappets are connected and fitted with the connecting filaments vertically penetrating through the structured fabric. This structured fabric shows biomimetic dynamic behavior like a real intervertebral disc and achieves a clinically effective and reliable stand-alone type of biomimetic artificial intervertebral disc which can be inserted and fixed with minimally-invasive operation.01-10-2013
20130013073METHODS AND APPARATUS FOR INTERVERTEBRAL DISC PROSTHESIS - A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.01-10-2013
20130013072INTERVERTEBRAL PROSTHETIC DISC - A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.01-10-2013
20100131067ORTHOPEDIC IMPLANT WITH SENSOR COMMUNICATIONS ANTENNA AND ASSOCIATED DIAGNOSTICS MEASURING, MONITORING, AND RESPONSE SYSTEM - A diagnostic system is provided that occupies a small area, provides sensing and transmitting of various diagnostic indicia, and with the aid of a healthcare professional, diagnoses and responds to such measurements. In the context of the spine, the diagnostic system comprises a spinal implant situated between two adjacent vertebrae, an antenna for sending and/or receiving signals to and/or from a remote location, a sensor for measuring at least one diagnostic condition, an activating element that has the ability to affect the at least one diagnostic condition, a power source to provide power to the diagnostic system, and a network that electrically connects the antenna, sensor, activating element and battery source.05-27-2010
20130018473METHODS AND APPARATUS FOR PERFORMING THERAPEUTIC PROCEDURES IN THE SPINE - Methods for correcting a deformit in the spine by forming a trans-sacral axial instrumentation/fusion axial bore through vertebral bodies in general alignment with a visualized, anterior axial instrumentation/fusion line in a minimally invasive, low trauma, manner and providing a therapy to the spine employing the axial bore. Curved or relatively straight anterior axial bores are formed from the anterior starting positions. The therapies performed through the axial bores include discoscopy, full and partial discectomy, vertebroplasty, balloon-assisted vertebroplasty, drug delivery, electrical stimulation and various forms of spinal disc cavity augmentation, spinal disc replacement, fusion of spinal motion segments and implantation of radioactive seeds. Axial spinal implants and bone growth materials can be placed into single or multiple parallel or diverging TASIF axial bores to fuse two or more vertebrae, or distract or shock absorb two or more vertebrae.01-17-2013
20130018468BI-DIRECTIONAL FIXATING TRANSVERTEBRAL BODY SCREWS AND POSTERIOR CERVICAL AND LUMBAR INTERARTICULATING JOINT CALIBRATED STAPLING DEVICES FOR SPINAL FUSION - A self-drilling bone fusion screw apparatus is disclosed which includes at least first and second sliding boxes. A first screw member having a tapered end and a threaded body is disposed within the first sliding box, and a second screw member having a tapered end and a threaded body disposed within the second sliding box. An adjuster adjusts the height of the sliding boxes. The screw members are screwed into vertebral bodies in order to fuse the vertebral bodies together. A plurality of the self-drilling bone fusion screw apparatuses may be attached together and/or integrated via a plate or cage. Also disclosed is a cervical facet staple that includes a curved staple base and at least two prongs attached to the bottom surface of the curved staple base.01-17-2013
20130018467Systems and Methods For Vertebral Body and Disc Height RestorationAANM Suh; SeanAACI BensalemAAST PAAACO USAAGP Suh; Sean Bensalem PA US - Systems and methods are provided for assisting in the height restoration of a collapsed vertebral member, such as a vertebral body or a disc. The systems can include one or more modular spacers that are capable of being positioned within the vertebral member on their anterior and/or posterior surfaces, or on their superior and/or inferior surfaces. The methods can include forming an incision through the vertebral body and inserting one or more modular spacers through the vertebral body in a stacked configuration. The one or more modular spacers can provide a structural framework within the vertebral member and can help restore the height of the collapsed vertebral member. A bone filler material, such as a bone cement, can be injected within and around the modular spacers.01-17-2013
20130018474VERTEBRAL JOINT IMPLANTS AND DELIVERY TOOLS - A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.01-17-2013
20130018472SPINAL FUSION DEVICES AND A METHOD OF PERFORMING SPINAL FUSION - A spinal fusion apparatus includes a cage body configured to be inserted between two vertebral bodies and which has internal sidewalls that define a cavity which extends vertically through the cage body, and an internal compression member which includes a movable sidewall which defines at least one side of the cavity, and which is movable in a lateral direction from a first position located in the cavity to a second position located in the cavity such that a space within the cavity is reduced when the movable sidewall is at the second position. The internal compression member includes a compression mechanism coupled to the moveable sidewall, and moves the movable sidewall from the first position to the second position. Fusion material is disposed in the cavity is compressed and compacted by the movable sidewall as the moveable sidewall moves from the first position to the second position.01-17-2013
20130018470BI-DIRECTIONAL FIXATING/LOCKING TRANSVERTEBRAL BODY SCREW/INTERVERTEBRAL CAGE STAND-ALONE CONSTRUCTS WITH VERTICAL HEMI-BRACKET SCREW LOCKING MECHANISM - A bi-directional fixating transvertebral (BDFT) screw/cage apparatus is provided. The BDFT apparatus includes an intervertebral cage including a plurality of internal angled screw guides, a plurality of screw members, and a cage indentation adjacent to the screw guides that independently or supplemented by other screw locking mechanisms prevents the screw members from pulling out of the internal angled screw guides. The internal angled screw guides orient a first screw member superiorly and a second screw member inferiorly. The intervertebral cage is adapted for posterior lumbar intervertebral placement, anterior lumbar intervertebral placement, anterio-lateral thoracic intervertebral placement, or anterior cervical intervertebral placement.01-17-2013
20130018469BI-DIRECTIONAL FIXATING TRANSVERTEBRAL BODY SCREWS AND POSTERIOR CERVICAL AND LUMBAR INTERARTICULATING JOINT CALIBRATED STAPLING DEVICES FOR SPINAL FUSION - A self-drilling bone fusion screw apparatus is disclosed which includes at least first and second sliding boxes. A first screw member having a tapered end and a threaded body is disposed within the first sliding box, and a second screw member having a tapered end and a threaded body disposed within the second sliding box. An adjuster adjusts the height of the sliding boxes. The screw members are screwed into vertebral bodies in order to fuse the vertebral bodies together. A plurality of the self-drilling bone fusion screw apparatuses may be attached together and/or integrated via a plate or cage. Also disclosed is a cervical facet staple that includes a curved staple base and at least two prongs attached to the bottom surface of the curved staple base.01-17-2013
20130018471SPINAL IMPLANTS WITH STEM CELLS - A spinal implant device has a synthetic or metallic or a combination thereof of these materials in an implant body structure and stem cells in a coating, or a sheet, wrap or a membrane wrap applied to surfaces on the implant body structure or alternatively filled with a plug of stem cell laden material. The implant body structure preferably has an aperture or channel. The spinal implant device may include anchoring holes to secure the device to the spinal skeletal structure with fasteners or alternatively can simply be held in place by and between adjacent vertebrae.01-17-2013
20130018466VERTEBRAL INTERBODY SPACERAANM Yu; KidongAACI MemphisAAST TNAACO USAAGP Yu; Kidong Memphis TN USAANM Miller; Keith E.AACI GermantownAAST TNAACO USAAGP Miller; Keith E. Germantown TN USAANM Armstrong; William D.AACI MemphisAAST TNAACO USAAGP Armstrong; William D. Memphis TN USAANM Branch; CharlesAACI AdvanceAAST NCAACO USAAGP Branch; Charles Advance NC USAANM Foley; Kevin ThomasAACI GermantownAAST TNAACO USAAGP Foley; Kevin Thomas Germantown TN USAANM McCombe; Peter M.AACI BrisbaneAACO AUAAGP McCombe; Peter M. Brisbane AUAANM Melkent; Anthony J.AACI MemphisAAST TNAACO USAAGP Melkent; Anthony J. Memphis TN USAANM Sears; William R.AACI SydneyAACO AUAAGP Sears; William R. Sydney AU - An interbody spacer includes an elongated body with a maximum width between opposite side walls and a maximum height between upper and lower bearing surfaces. The interbody spacer also includes a leading end nose connecting the side walls to facilitate insertion of the interbody spacer into a disc space between vertebrae in an insertion orientation, from which the interbody device is then rotated to position the upper and lower bearing surfaces in contact with the endplates of the adjacent vertebrae. The leading end nose forms a blunt convex nose between the upper and lower bearing surfaces to maximize the bearing surface area available to contact the adjacent endplates.01-17-2013
20110160866INTERVERTEBRAL IMPLANT WITH BLADES FOR CONNECTING TO ADJACENT VERTEBRAL BODIES - An intervertebral implant (06-30-2011
20110160865PROSTHESIS COMPRISING A CORE OF A GEL MATERIAL WITH A WOVEN ENVELOPE AND A METHOD FOR PRODUCING THE SAME AND USE THEREOF - The present application relates to a prosthesis comprising a core of a gel material and a fibre envelope which surrounds the core. In addition, the present application relates to a method for producing the same. The object of the present application is to provide a prosthesis which is based on a material which combines a low shear stiffness with a high degree of toughness and good swelling properties. Another object of the present invention is to provide a prosthesis which is based on a material which exhibits excellent durability and wear resistance.06-30-2011
20110160864INTERVERTEBRAL IMPLANT FOR TRANSFORAMINAL POSTERIOR LUMBAR INTERBODY FUSION PROCEDURE - An intervertebral implant for fusing vertebrae is disclosed. The implant may have a body with curved, posterior and anterior faces separated by two narrow implant ends, superior and inferior faces having a plurality of undulating surfaces for contacting vertebral endplates, and at least one depression in the anterior or posterior face for engagement by an insertion tool. The implant may also have one or more vertical through-channels extending through the implant from the superior face to the inferior face, a chamfer on the superior and inferior surfaces at one of the narrow implant ends, and/or a beveled edge along a perimeter of the superior and inferior faces. The implant configuration facilitates transforaminal insertion of the implant into a symmetric position about the midline of the spine so that a single implant provides balanced support to the spinal column. The implant may be formed of a plurality of interconnecting bodies assembled to form a single unit. An implantation kit and method are also disclosed.06-30-2011
20110160862Intervertebral Prosthetic Disc - A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.06-30-2011
20110160861METHODS AND APPARATUSES FOR VERTEBRAL BODY DISTRACTION AND FUSION EMPLOYING A COAXIAL SCREW GEAR SLEEVE MECHANISM - Improved methods and apparatuses for vertebral body distraction and fusion in accordance with various embodiments of the present invention employ one or more coaxial screw gear sleeve mechanisms. In various embodiments, coaxial screw gear sleeve mechanisms include a post with a threaded exterior surface and a corresponding sleeve configured to surround the post, the corresponding sleeve having a threaded interior surface configured to interface with the threaded exterior surface of the post and a geared exterior surface. A drive mechanism can be configured to interface with the geared exterior surface of the sleeve, causing the device to distract.06-30-2011
20110160860CERVICAL SPACER - An anterior cervical column support having a hollow frame having a top load bearing surface and a bottom load bearing surface may be inserted between a first spinal vertebra and a second spinal vertebra. The top load bearing surface and the bottom load bearing surface may each include an opening allowing access to the interior of the frame. A front surface may extend between the top load bearing surface and the bottom load bearing surface, and a rear surface may extend between the top load bearing surface and the bottom load bearing surface. Two side surfaces are attached between the front surface and the rear surface, each side surface having a solid side panel that is at least x-ray translucent. An anterior (front) plate is attached to the front surface of the support device, where the front plate includes clearance holes for receiving fasteners for holding the front plate in position. The top load bearing surface and the bottom load bearing surface may include a serrated or other high friction surface for applying frictional forces between the load bearing surfaces and adjacent vertebrae.06-30-2011
20130023993Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.01-24-2013
20130173004SUPPORT DEVICE AND METHOD FOR USE - Devices and methods for orthopedic support are disclosed. The device can have a first rigid section hingedly attached to a second rigid section. The device can be curved or rotated around obstructions along an access path to a target site. The device can be delivered to an intervertebral location in a patient.07-04-2013
20080255669INTERSPINOUS PROCESS SPACERS - Interspinous implants including a spacer configured to fit between first and second adjacent spinous processes of a human spine, to maintain a minimum separation between the spinous processes. An implant also includes a fixation portion coupled to the spacer, in which the fixation portion engages at least one spinous process to hold the spacer in a stable position relative to the spinous process. An implant may be monolithic, non-fillable, and may be inserted between the spinous process from a lateral approach. The fixation portion may be configured as a bracket which can substantially encircle the spinous process, or as flanges which engage lateral sides of the spinous process(es). The spacer may be resilient, and may be expandable along the anterior/posterior direction between the spinous processes. An implant may provide resilient resistance during extension, and/or a uniform extension stop between the spinous processes.10-16-2008
20080255668INTERSPINOUS PROCESS SPACERS - Interspinous implants including a spacer configured to fit between first and second adjacent spinous processes of a human spine, to maintain a minimum separation between the spinous processes. An implant also includes a fixation portion coupled to the spacer, in which the fixation portion engages at least one spinous process to hold the spacer in a stable position relative to the spinous process. An implant may be monolithic, non-fillable, and may be inserted between the spinous process from a lateral approach. The fixation portion may be configured as a bracket which can substantially encircle the spinous process, or as flanges which engage lateral sides of the spinous process(es). The spacer may be resilient, and may be expandable along the anterior/posterior direction between the spinous processes. An implant may provide resilient resistance during extension, and/or a uniform extension stop between the spinous processes.10-16-2008
20080255667ALLOGRAFT SPINAL FACET FUSION SYSTEM - A method for fusing a spinal facet joint and a surgical kit for use therein. The kit preferably comprises an allograft implant, a facet finder, a drill, a drill guide, and an implant inserter. The method preferably comprises the steps of locating the facet joint with a facet finer, sliding a drill guide over the facet finder until the drill guide engages the facet joint, removing the facet finder from within the drill guide, inserting a drill through the drill guide and drilling a socket within the facet joint to a predetermined depth, removing the drill from within the drill guide, securing an allograft implant within an implant inserter, inserting the implant inserter through the drill guide until the implant engages the socket, tapping the implant inserter to push the implant completely within the socket, removing the implant inserter from within the drill guide, and removing the drill guide.10-16-2008
20080255666FACET FIXATION AND FUSION WEDGE AND METHOD OF USE - A spinal implant including an at least one screw disposed within a wedge body is herein provided. The implant can be configured for placement with a facet joint in an intra-facet delivery. Furthermore, the implant can include a fusion-promoting bioactive material thereby providing a single device capable of spinal stabilization and/or fusion. Furthermore, a method of placing such an implant within a facet joint in an intra-facet orientation is hereby provided.10-16-2008
20080243254Height adjustable spinal prostheses - Dimensionally adjustable spinal prostheses are adjustable in an axial or superior to inferior dimension such that spinal prostheses may assume variations in height. The height adjustable spinal prostheses are characterized by first and second portions that are configured for adjustable coupling with one another. Spatial adjustment between the first and second portions is provided by an adjustment assembly. The adjustment mechanism preferably, but not necessarily, provides infinite adjustment over a minimum prosthesis height to a maximum prosthesis height. In one form, first and second ends of the height adjustable spinal prostheses are configured to receive an endplate. The endplates aid in attachment and/or anchoring of the spinal prosthesis within the spine. The endplates may be fashioned in various configurations such as circular or anatomical. In one form, the adjustment assembly utilizes rotational motion for varying the axial position of one prosthetic portion relative to the other prosthetic portion. Rotational movement of an adjustment mechanism of the adjustment assembly is translated into axial movement of one prosthetic portion relative to the other prosthetic portion. In another form, the adjustment mechanism is a screw and gearing assembly. In yet another form, the adjustment mechanism is a rack and pinion assembly.10-02-2008
20080243250Lateral Spinous Process Spacer - Interspinous process implants are disclosed. Also disclosed are systems and kits including such implants, methods of inserting such implants, and methods of alleviating pain or discomfort associated with the spinal column.10-02-2008
20080234828Implant - In order to improve an implant for replacing a vertebral body or for insertion into an intervertebral cavity between adjacent vertebral bodies of a human or animal spinal column, with a first contact face for resting on a joint face of a first vertebral body and with a second contact face for resting on a joint face of a second vertebral body, the implant being at least partially produced from an X-ray transparent material and comprising at least one X-ray marker in such a way that it can be produced more simply, it is proposed that the at least one X-ray marker is configured in the form of an at least partial marker coating, which contains metal as the marker material, of a side face of the implant, which is inclined relative to the first and/or the second contact face by an angle of inclination.09-25-2008
20080234827DEVICES FOR TREATING THE SPINE - Various features of spinal implants and systems and methods for implanting the same with or between tissue layers in the human body.09-25-2008
20080234825Modular Lumbar Interbody Fixation Systems and Methods - Modular lumbar interbody fixation systems and methods are provided. A representative system includes: an anterior end opposite a posterior end; a pair of engaging plates adapted to fit between and engage the vertebral bodies to maintain a disc space between the vertebral bodies during use; and an alignment device positionable between the pair of engaging plates, the alignment device comprising at least one flexible strut extending between the pair of engaging plates during use.09-25-2008
20080234824Interspinous dynamic stabilization implant and method of implanting - Devices and methods for treating spinal disorders and associated discomfort therefrom. In one embodiment, an interspinous implant device is configured for distracting an adjacent pair of spinous processes while permitting relative flexion, lateral bending and side rotation motions between the vertebrae joined to the adjacent pair of spinous processes. A method of treating spinal disorders and associated discomfort therefrom, includes inserting an interspinous device between a pair of adjacent spinous processes such that a superior portion of the device contacts an inferior surface of the relatively superior spinous process of the pair, and an inferior portion of the of the device contacts a superior surface of the relatively inferior spinous process of the pair; and distracting the superior and inferior portions, relative to one another, thereby distracting the spinous processes, whereby vertebrae integral with the spinous processes retain capability of flexion, lateral bending and side rotation motions, relative to one another, after the distraction has been performed.09-25-2008
20080234823Artificial functional spinal unit system and method for use - A method of stabilizing a human spine is provided. The spine may be stabilized by inserting one or more dynamic interbody devices in a disc space between a first vertebra and a second vertebra. A dynamic interbody device may be inserted using an anterior approach. One or more dynamic interbody devices may be inserted using a posterior approach. One or more of the dynamic interbody devices may allow for coupled axial rotation and lateral bending of the first vertebra relative to the second vertebra. The spine may also be stabilized by installing one or more posterior dynamic stabilization systems.09-25-2008
20080234822Method and Apparatus for Stabilization and Fusion of Adjacent Bone Segments - Disclosed are systems and methods for stabilization and fusion of adjacent bone segments. Also disclosed are methods for manufacturing a surgical bone implant. Surgical bone implants constructed in accordance with the invention receive improved structural stability and accurate sizing, particularly under expansion and shrinkage caused by hydration and dehydration of the implant.09-25-2008
20080228277Intervertebral prosthesis - An intervertebral prosthesis for insertion between adjacent vertebrae includes upper and lower prosthesis plates locatable against respective vertebrae and having opposing, concavely curved recesses therein, and a core located between the plates. The core has opposed, convexly curved surfaces received in the recesses of the plates to allow the plates to slide in articulated manner over the core. The opposed surfaces of the core and the recesses of the plates have cooperating spherical curvatures. The recess of each plate surrounds a locating peg projecting centrally from the base of the recess and is bounded by an annular rim, such that the annular rims of the plates are arranged to contact one another at a predetermined limit of sliding movement of the plates over the core. The peg locates loosely in an opening located centrally in a curved surface of the core, whereby the plates can slide over the core in all directions while the peg holds the core captive.09-18-2008
20110264226Intervertebral Disk Prosthesis Provided with Anchor Means - An intervertebral disk prosthesis is provided. The prosthesis comprises: a first plate for engaging a first vertebral body, said first plate comprising a first slot formed through the first plate; a second plate for engaging a second vertebral body, said second plate comprising a second slot formed through the second plate; a first anchor member, said first anchor member positioned and slidable through the first slot and having a sharp edge for penetrating into the first vertebral body; and a second anchor member, said second anchor member positioned and slidable through the second slot and having a sharp edge for penetrating into the second vertebral body. The first plate and the second plate engage with one another by way of complimentary concave and convex spherical cap portions to provide relative movement between the first plate and the second plate.10-27-2011
20110264220DEVICE AND METHOD FOR DELIVERING RADIATION - Embodiments of the invention include a device for supplementing or replacing a spinal structure and therapeutically delivering radiation to tissue. Some embodiments include a plug with an integrated radiation source. The plug may be coupled to an interbody spinal implant or a vertebral body replacement implant.10-27-2011
20110264219SPACER FOR SPINAL FUSION - A spacer for use in a spinal fusion procedure includes a hollow, elongated body including a central portion adapted to contact the medullary bone portion of the vertebrae and nubs projecting in the elongated direction from the central portion and adapted to contact the apophyseal rings of the vertebrae.10-27-2011
20080221696INTERVERTEBRAL PROSTHETIC DISC - A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.09-11-2008
20080221695Spinal interbody spacer device - There is described an instrument set for use in spinal surgery that includes as elements a spinal body spacer, a placement tool, and an extraction tool. The spacer may be constructed with a body having a first wall and a second wall connected by a top face, a bottom face, and a lateral support. Further, the spinal body spacer has a threaded opening and keyways connected to the threaded opening positioned in a face. The spinal body spacer may also include a superior surface and an inferior surface with a plurality of antimigration furrows positioned on each of the superior surface and the inferior surface. The spacer may have an outer face positioned around the opening and the placement tool may also have a contact face such that the contact face comes into contact with the outer face when the placement tool is fully connected with the spacer. The placement tool has a threaded tip for connecting with the threaded opening of the spacer. The extraction tool has a tip configured to pass through the opening of the spacer, and the tool has tabs positioned on the tip such that the tabs pass through the keyways of the spacer. The extraction tool is configured such that it passes through the aperture, rotates, and then can be used to exert a pulling force on the spacer. The tip of the extraction tool may be a substantially blunt tip, a substantially pointed tip, or even a tip with a hollow area. The spacer may have at least one block disposed on an interior surface such that the block contacts the tabs of the extraction tool thereby restricting rotation of the extraction tool relative to the spacer. The spacer may have a backing plate, and the backing plate may itself include projections disposed in the matrix of the spacer.09-11-2008
20080221694Pivotable Interbody Spacer System and Method - A spinal spacer system includes a handle member, an extension member including a first and a second end, wherein the first end of the extension member is coupled to the handle member. Additionally, a coupling device configured to selectively couple a spacer to the second end of the extension member is disposed on the extension member including an angular fixation member configured to fix the spacer in an angular position relative to the handle member. The spinal spacer system also includes an actuator configured to selectively actuate the coupling device and the angular fixation member. The spacer of the present exemplary spinal spacer system includes a proximal end, a distal end, and a rotatably coupleable engagement member disposed on the proximal end of the spacer. According to one exemplary embodiment, the coupling device includes a single protruding member extending from the second end of the extension member.09-11-2008
20080221693INTERVERTEBRAL PROSTHESIS - An intervertebral prosthesis is disclosed for utilisation as an intervertebral disc replacement in the skeleton of the human body. The intervertebral prosthesis includes a first prosthesis plate, on which is formed a first coupling element, e.g., in the form of a spherical cap, and a second prosthesis plate, in which, for example, a hollow spherical shell is formed, into which, in the coupled state, the spherical cap engages. To create a physiologically favourable intervertebral disc replacement, the rotational movement of both prosthesis plates with respect to each other around an axis perpendicular to the prosthesis plates is significantly limited, for example to 3 degrees. The limitation of the rotational movement is produced by means of a movement restriction means in the form of mechanical blocks on the coupling elements.09-11-2008
20080221692INTERSPINOUS PROCESS IMPLANTS AND METHODS OF USE - Systems and method in accordance with an embodiment of the present invention can includes an implant comprising a first wing, a spacer extending from the first wing, and a distraction guide. The distraction guide is arranged in a first configuration to pierce and/or distract tissue associated with adjacent spinous processes extending from vertebrae of a targeted motion segment. The implant can be positioned between the adjacent spinous processes and once positioned, the implant can be arranged in a second configuration. When arranged in a second configuration, the distraction guide can act as a second wing. The first wing and the second wing can limit or block movement of the implant along a longitudinal axis of the implant.09-11-2008
20080221691SURGICAL IMPLANT SECURED BY PEGS AND ASSOCIATED METHODS - An apparatus and method is provided relating to artificial discs. An artificial disc is provided that facilitates simultaneous and independent articulation of flexion/extension, lateral bending, anterior/posterior translation, and axial rotation. The artificial disc provides these four simultaneous and independent articulations by independently addressing each type of articulation in the design of the artificial disc. In one example, an artificial disc is comprised of a bearing disposed between first and second end plates. The bearing is movable relative to each end plate, independent of the other end plate. The end plates are affixed to adjacent vertebrae.09-11-2008
20080221690ARTIFICIAL DISC WITH POST AND MODULAR COLLAR - An apparatus and method is provided relating to artificial discs. An artificial disc is provided that facilitates simultaneous and independent articulation of flexion/extension, lateral bending, anterior/posterior translation, and axial rotation. The artificial disc provides these four simultaneous and independent articulations by independently addressing each type of articulation in the design of the artificial disc. In one example, an artificial disc is comprised of a bearing disposed between first and second end plates. The bearing is movable relative to each end plate, independent of the other end plate. The end plates are affixed to adjacent vertebrae.09-11-2008
20080221689ARTIFICIAL DISC WITH UNIQUE ARTICULATING GEOMETRY AND ASSOCIATED METHODS - An apparatus and method is provided relating to artificial discs. An artificial disc is provided that facilitates simultaneous and independent articulation of flexion/extension, lateral bending, anterior/posterior translation, and axial rotation. The artificial disc provides these four simultaneous and independent articulations by independently addressing each type of articulation in the design of the artificial disc. In one example, an artificial disc is comprised of a bearing disposed between first and second end plates. The bearing is movable relative to each end plate, independent of the other end plate. The end plates are affixed to adjacent vertebrae.09-11-2008
20080221688Method of Maintaining Fatigue Performance In A Bone-Engaging Implant - This disclosure is directed to a method capable of maintaining the fatigue performance of a bone-engaging implant after surface texturing through the imparting of a residual compressive stress. A residual compressive stress is imparted via peening or another process. The peened surface is then roughened to improve mechanical adhesion for bone fixation via grit blasting or another process. The depth of penetration of the roughened texture is less than the depth of the residual compressive stress.09-11-2008
20080221687DEPLOYABLE SEGMENTED TLIF DEVICE - A segmented intervertebral body fusion support includes a plurality of segments, the segments including an initial segment, a final segment and at least one intermediate segment. The intermediate segment has a generally trapezoidal configuration and the initial and final segments include tapered side walls providing triangular gaps between adjacent segments. A draw wire is fixed to the first segment and passes through the remaining segments. By pulling the draw wire relative to the segments, the segments are drawn together in a generally arcuate configuration. The draw wire includes an enlargement that passes through the final segment and engages a plurality of fingers on the final segment, which prevents the draw wire from retracting, maintaining the arcuate configuration. The segmented device can be inserted through a laparoscopic device into the intervertebral space and can be subsequently drawn into the arcuate configuration to establish the desired intervertebral spacing.09-11-2008
20120253466METHODS AND DEVICES FOR THE TREATMENT OF INTERVERTEBRAL DISCS DISORDERS - Devices for the treatment of intervertebral discs are described. The devices, when implanted into the nucleus pulposus of an intervertebral disc, are specifically configured with an inert outer layer and an inner layer containing at least one chemonucleolysis agent so as to provide a delayed and controlled release of the chemonucleolysis agent from the inner layer into the disc. The implant can be an elongated solid body having a tapered or rounded insertion end having at least one therapeutic agent in the inner layer of the implant surrounded by an outer layer of inert material.10-04-2012
20130173002TOOLS FOR IMPLANTATION AND EXTRACTION OF POSTERIORLY PLACED LUMBAR ARTICIAL DISCS INCLUDING: A TOTALLY WIRELESS ELECTRONICALLY EMBEDDED ACTION-ENDED ENDOSCOPE UTILIZING DIFFERENTIAL DIRECTIONAL ILLUMINATION WITH DIGITALLY CONTROLLED MIRRORS AND/OR PRISMS, AND A DISC BALL INSERTER , A PLATE EXTRACTOR, AND RESCUE DISC PLATES - A hand manipulated endoscopic medical device includes a body having a proximal end, which is hand manipulated, a distal end which includes a manipulator, a light emitting device at the distal end, an imaging device at the distal end. A tool for extracting an artificial lumbar disc from between a pair of vertebral plates includes a handle, a member for transmitting force, and a sharpened end, specially configured to be placed between the artificial disc and the vertebral plate. A tool for implanting or explanting a ball to or from an artificial lumbar disc includes a pinion shaft and a pinion shaft enclosure, with a tightening knob at the proximal end of the shaft enclosure and coupled to the pinion shaft, a pinion at the distal end of the pinion shaft, a grappling device at the pinion, and a pair of semi-circular rings.07-04-2013
20080215155INTERVERTEBRAL PROSTHETIC DISC - A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.09-04-2008
20110270401SYNTHETIC REINFORCED INTERBODY FUSION IMPLANTS - Interbody fusion implants that include a load bearing body composed of a calcium phosphate material hardened around one or more structural reinforcing members are provided. The reinforcing members aid the load bearing body in resisting bending forces and, in certain forms, aid in preventing expulsion of the implant after implantation. Methods for promoting fusion bone growth in the space between adjacent vertebrae and methods for making the inventive implants are also provided.11-03-2011
20130090735Intervertebral Implant - An intervertebral implant for being implanted between adjacent vertebrae is provided. The implant includes a generally elongate implant body having a length extending between opposite longitudinal ends thereof, a superior face and an inferior face. The superior face and inferior face include cortical teeth adjacent to the implant body longitudinal ends. Additionally, the superior and inferior faces include longitudinally central teeth intermediate the cortical teeth and have bone engaging ends. The central teeth have a sharper configuration than that of the cortical teeth bone engaging ends for biting into the softer central bone material of the vertebrae. The cortical teeth are arranged in a first density per unit area and the central teeth are arranged in a second density per unit area that is less than the first density.04-11-2013
20130090734Sac for use in spinal surgery - A method for fusing spinal bone is provided. The method comprises placing a sac between two or more adjacent sections of the spine to be fused, and filling the sac with bone tissue. The surfaces of the sac abutting the sections of the spine comprise porous material for allowing bone to grow between the spine and the sac. Surfaces of the sac not abutting the sections of the spine are nonporous to bodily fluids and thereby prevent premature deterioration of the bone tissue inside the sac. A sac for fusing spinal bone and a kit comprising the sac are also provided.04-11-2013
20130096687Artificial Hemi-Lumbar Interbody Spinal Fusion Cage Having an Asymmetrical Leading End - An artificial interbody spinal implant adapted for placement across an intervertebral space formed across the height of a disc space between two adjacent vertebral bodies is disclosed. The implant has an asymmetrical leading end adapted to sit upon the more peripheral areas, such as the apophyseal rim and the apophyseal rim area, of the vertebral end plate region of the vertebral bodies without protruding therefrom. The asymmetrical leading end allows for the sate use of an implant of maximum length for the implantation space into which it is installed. The implant can also include an asymmetric trailing end adapted to sit upon the more peripheral areas of the vertebral end plate region of the vertebral bodies.04-18-2013
20130096688Interbody Spinal Fusion Implant Having A Trailing End With At Least One Stabilization Element - A flanged interbody spinal fusion implant for insertion at least in part between adjacent vertebral bodies has opposed upper and lower surfaces adapted to contact each of the adjacent vertebral bodies from within the disc space, a leading end for insertion between the adjacent vertebral bodies, and a trailing end opposite the leading end. The trailing end has a height greater than the maximum height of the disc space forming a flanged portion adapted to overlie a part of the anterior aspects of the vertebral bodies adjacent and proximate the disc space to be fused. The flanged portion has at least two bone screw receiving holes, at least one each adapted to overlie each of the adjacent vertebral bodies at least in part. The implant has at least one locking element to lock one or more of the bone screws inserted in the bone screw receiving holes. Instrumentation for inserting the implant, forming screw holes in the vertebral body, and for locking the locking elements are disclosed.04-18-2013
20130096685INTERVERTEBRAL SPINAL IMPLANT - An intervertebral spinal implant includes a shaped body with a first bearing side, a second bearing side located opposite to the first bearing side, a front part, a rear part, a concave side and a convex side. The concave side and the convex side are both connected to the bearing sides as well as to the front part and the rear part. The first bearing side and the second bearing side are each provided with at least two projections for penetration within a vertebral body's wall. The projections are formed by elongated sliding-guiding runners which extend in a diverging manner from the concave side of the body towards the convex side of the body. The sliding-guiding runners extend in a curved manner so that they also extend from the concave side of the body towards the rear part of the body in addition to extending towards the convex side of the body. The sliding-guiding runners are provided with a smooth surface facing the convex side of the body and with a rough surface facing the concave side of the body.04-18-2013
20130096683Interbody Cage for Spinal Fusion and Method of Implanting Interbody Cages into Spines - A spinal interbody fusion implant has an impact rod fitting that is configured and adapted to be connected to an impact rod during implantation of the implant. The implant also comprises one or more openings that are encircled by portions of the implant and that extend into the top of the implant and continue through to and out of the bottom of the implant. The top and bottom of the implant each have a load bearing footprint. Each of the load bearing footprints has a centroid that is closer to the leading end of the implant than to the trailing end of the implant. A method of implanting a spinal interbody fusion implant between two vertebrae of a spine comprises inserting the implant into a patient through a posterior incision and guiding the implant into a position between the two vertebrae using a pair of shims.04-18-2013
20130096689INTERSPINOUS VERTEBRAL STABILIZATION DEVICES - The present invention provides interspinous vertebral and lumbosacral stabilization devices, and methods of using these devices for treating spinal instability conditions. The invention includes interspinous vertebral stabilization devices adapted for placement between the spinous processes of two or more adjacent vertebrae. The invention also includes lumbar stabilization devices adapted to be placed between a lumbar vertebra and an adjacent vertebra, including the first sacral vertebra (S1), to stabilize the lumbosacral region of a patient, and method for using such devices.04-18-2013
20130096686SYSTEMS AND TECHNIQUES FOR RESTORING AND MAINTAINNING INTERVERTEBRAL ANATOMY - Techniques and systems for distracting a spinal disc space and supporting adjacent vertebrae are provided. Trial instruments are insertable into the disc space to determine a desired disc space height and to select a corresponding implant. Implants can be also be self-distracting and the implant providing the desired disc space height can be implanted in the spinal disc space.04-18-2013
20130103153INTERBODY IMPLANT SYSTEM AND METHODS OF USE - An interbody implant system includes at least one endplate member defining a longitudinal axis, a trial member and a permanent implant. The endplate member is configured for engagement with a vertebral endplate and permanent implantation. The trial member is configured for disposal adjacent the at least one endplate member within an intervertebral space. The permanent implant member has a configuration and dimension corresponding to the trial member, and is disposed adjacent the at least one endplate member within the intervertebral space.04-25-2013
20130103155Silicone nucleus implants - A nucleus implant includes a core (04-25-2013
20130103152SPINAL FACET FUSION DEVICE AND METHOD OF OPERATION - A spinal facet fusion device is provided. The device includes a working sleeve having a first surface with a first port and a second port extending there through. The first port has a first perimeter and the second port having a second perimeter, wherein the first port is larger than the second port. A guide wire sleeve having a body with a proximal end and a distal end and a first outer perimeter is provided. The first outer perimeter is sized and shaped to be slidingly disposed within the second port, the guide wire sleeve having a channel extending longitudinally from the proximal end through the distal end, the body further having a stop feature on the distal end. An implementing device having a second outer perimeter is sized to be slidingly received within the first perimeter.04-25-2013
20130103154EXPANDABLE SPINAL IMPLANT AND METHODS OF USE - A spinal implant includes first and second vertebral endplate-engaging components connected to each other at one end in articulated engagement to provide a desired expanded configuration, and an expander component disposed between the first and second components at the other end thereof to maintain the expanded configuration. Methods of use are disclosed.04-25-2013
20130103156LATERALLY EXPANDABLE SPINAL PROSTHESIS - An expandable spinal prosthesis is disclosed, including a first surface having a first plurality of tissue anchors; a second surface opposite the first surface, the second surface having a second plurality of tissue anchors; a first wall between the first and second surfaces, and a second wall between the first and second surfaces, the second wall located opposite the first wall and being movable with respect to the first wall. A surgical instrument is also provided, including an elongated shaft defining a proximal end and a distal end; a first prosthesis engagement element accessible from the proximal end and extending from the distal end; and a second prosthesis engagement element accessible from the proximal end and extending from the distal end, the second prosthesis engagement element including a plurality of gear teeth.04-25-2013
20130178941MINIMALLY INVASIVE INTERVERTEBRAL STAPLE DISTRACTION DEVICES - Multiple, small, staple-like supports are inserted through a small tube into the disc space then rotated into position on the edge of the vertebral bodies. The tooth-like geometry of the proximal and distal faces of these staples mates with the outer edge of the vertebral body, extending past the front of the endplate anteriorly. The staples have teeth that dig into the endplate on the inside of the rim as well.07-11-2013
20130178940EXPANDABLE CAGE SPINAL IMPLANT - An expandable cage for maintain the position of adjacent vertebrae includes a cage top, a cage bottom, and a plurality of shims. The cage top is adapted for contacting a bottom surface of the upper of the adjacent vertebrae, and the cage bottom is adapted for contacting an upper surface of the lower of the adjacent vertebrae. The plurality of shims are adapted for insertion between the cage top and cage bottom to expand the cage. The shims include a proximal end having a bone graft distribution feature configured such that when bone graft material is introduced to the site of the expandable cage, the bone graft material is separated at the bone graft distribution feature and distributed to either side of the cage.07-11-2013
20130178939EXPANDABLE INTERBODY IMPLANT AND METHOD - An intervertebral implant that can be surgically introduced between adjacent vertebrae and expanded in situ to occupy an optimal space between the vertebrae. The implant is inserted into the evacuated disc space obliquely and then oriented so as to extend laterally across the anterior adjacent vertebrae with its outer ends of the implant supported by the cortical rims on the opposite sides of the vertebrae. The implant has two body members with a space therebetween so the implant may be then distracted and a spacer of predetermined thickness that may be inserted within the space between the body members so as to maintain a desired amount of distraction. The upper and lower surfaces of the implant may have a desired lordotic angle. A method of using an implant is disclosed which permits endoscopic visualization of the disc space.07-11-2013
20130131810APPARATUS AND METHOD FOR TREATING BONE - A bone tamp for creating channels within bone tissue. The bone tamp includes an elongated member that is deformable from a first generally non-linear configuration to a second generally linear configuration for insertion into bone tissue. As the elongated member is deployed into bone tissue, it transitions from the linear configuration into the non-linear configuration within the bone tissue. The elongated member is capable of being deformed back into the generally linear configuration for withdrawal from the bone tissue.05-23-2013
20130131813ARTIFICIAL DISC REPLACEMENTS WITH NATURAL KINEMATICS - This invention improves upon prior art total disc replacements (TDRs) by more closely replicating the kinematics of a natural disc. The preferred embodiments feature two or more fixed centers of rotation (CORs) and an optional variable COR (VCOR) as the artificial disk replacement (ADR) translates from a fixed posterior COR that lies posterior to the COR of the TDR to facilitate normal disc motion. The use of two or more CORs allows more flexion and more extension than permitted by the facet joints and the artificial facet (AF). AF joint-like components may also be incorporated into the design to restrict excessive translation, rotation, and/or lateral bending.05-23-2013
20130131811EXPANDABLE DEVICE FOR DISTRACTING SPINAL TISSUE SURFACES - An expandable interbody fusion device includes superior and inferior endplates that are configured to receive a sequentially inserted stack of interlocking expansion members or wafers. The like-configured wafers include features on their top and bottom surfaces that interlock the wafers in multiple degrees of freedom so that the wafer stack is not disrupted when the fusion device is fully expanded. One of the interlocking features includes a plurality of prongs projecting from an upper surface of the wafers and into a recess defined in the lower surface of an adjacent previously inserted like-configured wafer. The prongs and recesses are configured to prevent retrograde movement of each new wafer in a direction opposite the direction of insertion. Other interlocking features prevent movement in the direction of insertion, transverse to the insertion direction and vertically within the stack.05-23-2013
20130131812BONE IMPLANTS AND METHOD OF MANUFACTURE - An implant device for humans or mammals has a body structure having an exposed surface and one or more selected portions of the exposed surface having a bone formation enhancing 3-dimensional pattern. The exposed surface can be on exterior portions of the body structure or internal portions of the body structure or both. The one or more selected portions of the exposed portions having the bone formation enhancing 3-dimensional patterns are in the external exposed surfaces or in the internal exposed surfaces or both internal and external exposed surfaces.05-23-2013
20130144391SURGICAL SYSTEMS AND METHODS FOR IMPLANTING DEFLECTABLE IMPLANTS - Deflectable implants, systems and methods for implanting deflectable implants are disclosed. The deflectable implant (06-06-2013
20100280620TRIAL IMPLANT ASSEMBLY - A trial implant assembly is provided that includes a threaded shaft having exterior threading adjacent a distal end and a trial implant that includes a trial base having an interiorly threaded through hole couplable to the distal end of the shaft and a trial head having a superior endplate and an inferior endplate and a support connecting the superior endplate to the inferior endplate. A variety of visualization windows are provided through the trial implant as well as a variety of mechanically adjustable stops to prevent over insertion of the trial head within the intervertebral disc space.11-04-2010
20100280617MODULAR INTERVERTEBRAL IMPLANT - An intervertebral implant component includes an inlay which fits into an endplate, where the inlay is prevented from moving relative to the endplate. Various embodiments of locking mechanisms for preventing movement are disclosed. In some preferred embodiments, a surgeon is able to see that the locking mechanism is properly engaged.11-04-2010
20090105824SPINAL FUSION DEVICE AND ASSOCIATED METHODS - A method and apparatus is provided for use in spinal fusion procedures. An exemplary interbody fusion device includes a synthetic non-metallic radiolucent interbody spacer having an opening formed between its top and bottom surfaces. A cancellous allograft plug is configured to be disposed within the opening formed in the spacer. The cancellous allograft plug can be reconstituted with a material that will help to facilitate fusion of the vertebrae.04-23-2009
20110218629SPINAL STABILIZATION DEVICE - A spinal implant device in accordance with the present disclosure is made of a material suitable for human implantation and has a main body having a substantially square periphery. In addition, the spinal implant device has a tapered leading tip on a distal end of the spinal implant device and contiguous with the main body for insertion into a intervertebral space between two vertebral bodies.09-08-2011
20080200987Preparation Device For Preparing an Intervertebral Disc Compartment - The invention relates to a preparation device for preparing an intervertebral disc compartment (08-21-2008
20080200986Method and a Kit for Inserting Prosthetic Intervertebral Discs into a Spine - Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.08-21-2008
20080200985SPINAL IMPLANT - A spinal implant as provided having a porous body that includes a leading end, a convex trailing end and first and second sides extending between the leading and trailing ends. At least a portion of the leading end is generally straight. The body further includes a generally dome-shaped superior surface and a generally planar inferior surface. The superior surface is convex between the leading and trailing ends and is convex between the first and second sides.08-21-2008
20080200984Intervertebral Disc Prosthesis Insertion Assemblies - In various embodiments, an intervertebral disc prosthesis is provided. The prosthesis may be provided with an insertion adapter, such as a head, holder, or other carrier of the prosthesis. The insertion adapter may be configured to retain the prosthesis and to engage an insertion tool body. In various embodiments, the prosthesis and the insertion holder are provided in a sterile pack, with the prosthesis components and the insertion holder sterilized and packaged in one or more types or layers of sterile packaging. In various other embodiments, the prosthesis and an insertion tool are provided in a sterile pack, with the prosthesis components and the insertion tool sterilized and packaged in one or more types or layers of sterile packaging.08-21-2008
20110213465EXPANDABLE INTERBODY FUSION DEVICE - An expandable interbody fusion device includes superior and inferior plates that are configured to receive a sequentially inserted stack of expansion members or wafers. The superior and inferior plates include features that at least initially interlock the two plates until the superior plate is dislodged by pressure from the growing wafer stack. The wafers include features on their top and bottom surfaces that interlock the wafers in multiple degrees of freedom so that the wafer stack is not disrupted when the fusion device is fully expanded. Each wafer also includes features that interlock with the inferior plate until the wafer is dislodged by sequential introduction of another wafer.09-01-2011
20110213463ANNULUS-REINFORCING BAND - A pliable band or hoop that is flexible to normal handling, but cannot stretch circumferentially once it has reached the limits of its circumferential length. The band may have a structural portal to be used for filling, or it may simply be constructed of a fabric-like material that allows a fill tube to perforate its walls to allow for filling. In the latter case, the perforated wall tends to self-seal once the fill tube is withdrawn. The band may be flat or tubular in cross-section. However, unlike a balloon, the band does not require either a bottom or a top, as we found that a top and bottom are unnecessary when using a band or hoop to enclose material injected into a reamed out intervertebral space.09-01-2011
20110224796IMPLANT FOR FUSING SPINAL COLUMN SEGMENTS - The invention relates to an optical lens shaped into the form of a shroud and having a light-permeable front side (09-15-2011
20110224795SPINAL FUSION IMPLANT - The present invention is directed to a variety of interbody spinal fusion implants for insertion across the surgically corrected height of a disc space between two adjacent vertebral bodies of a human spine. The spinal fusion implants of the present invention have opposed upper and lower portions with openings extending through the implant to provide for bone growth from vertebral body to vertebral body. The upper and lower portions of the spinal fusion implants of the present invention have bone engaging projections to engage the implants to the adjacent vertebral bodies.09-15-2011
20110230971ARCUATE FIXATION MEMBER - Arcuate fixation members with varying configurations and/or features are provided, along with additional components for use therewith in provided intervertebral implants. The arcuate fixation members may be of different lengths, cross sectional geometries, and/or cross sectional areas. Applications of intervertebral implants utilizing arcuate fixation members are particularly suitable when a linear line-of-approach for delivering fixation members is undesirable.09-22-2011
20110230968Intersomatic Cage - The invention relates to an intersomatic cage comprising a body (09-22-2011
20100286787Posterior Spinal Device and Method - An intervertebral joint assembly includes an upper support and a lower support, each of which has two or more components. The upper and lower support components are arranged in situ to form the upper and lower supports, respectively. By arranging the supports in situ, the supports can be introduced from the back of the patient, for example with an arthroscope. Each of the upper and lower supports has a surface adapted to engage a vertebra and a surface adapted to engage the other support or an intermediate member to form an articulate joint which articulates the joint assembly. In some embodiments, the components of the upper and lower supports are assembled in situ, for example with pivoting, telescoping or bending, to form the upper and lower supports, respectively. The supports can be attached to vertebrae with pedicles screws, and/or other anchors attached to the supports.11-11-2010
20100286786BIOADHESIVE HYDROGELS - A method of forming and the resulting bioadhesive hydrogel composition for repairing or supplementing a nucleus pulposus of an intervertebral disc comprises at least a first component, a second component and a third component, wherein the first component, the second component and the third component are crosslinked. The first component comprises an amine-containing polymer component at a concentration from about 0.1% weight by weight to about 13.65% weight by weight. The second component comprises a hydrophilic polymer or pre-polymer component at a concentration from about 3% weight by weight to about 35% weight by weight. The third component comprises an aldehyde component at a concentration from about 0.1% weight by weight to about 30% weight by weight. A method of repairing or supplementing a nucleus pulposus of an intervertebral disc comprises implanting the bioadhesive hydrogel composition in a patient.11-11-2010
20100286784Total disc replacement system and related methods - Total disc replacement systems and related methods involving a lateral, trans-psoas surgical approach to the spine while performing at least one of continuous and intermittent intra-operative neural monitoring of the psoas muscle to avoid injury during introduction.11-11-2010
20110251691Expandable Vertebral Implant - The present invention relates to an expandable implant for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.10-13-2011
20110238185INTERVERTEBRAL DISK IMPLANT - The invention relates to an intervertebral disk implant having two implant plates contacting prepared vertebral body surfaces in the implanted state and an implant core which can be introduced between the implant plates. The invention further relates to a method for the manufacture of an intervertebral disk implant.09-29-2011
20120277873Interbody fusion device with lipped anterior plate and associated methods - A method and apparatus is provided for use in spinal fusion procedures. An interbody fusion device has a first piece that is a load bearing device designed to bear the axial loading from the end plates of adjacent vertebrae. A second piece of the interbody fusion device is a retention device whose function is to prevent migration of the load bearing device. One or more fasteners secure the retention device to the vertebrae above and below the load bearing device. The fasteners cause the end plates of the vertebrae to compress the end plates to the load bearing device to facilitate proper fusion. The second piece can be configured to include lips that abut the apothyseal rings during, with the plate including bores angled such that fasteners penetrate the apothyseal rings.11-01-2012
20120277868STAND ALONE INTERBODY FIXATION SYSTEM - An interbody spacer system includes a cage and at least one first fixation blade. The cage includes an anterior wall and a posterior wall connected by a pair of side walls. The at least one first fixation blade partially extends around an outer surface of a first of the pair of side walls and is positionable between a first configuration for insertion into a disk space between two vertebrae and a second configuration for attachment to a first of the vertebrae.11-01-2012
20130150970Implant with Sensor - A spinal implant for supporting adjacent bones or vertebrae by insertion through a surgical opening with adjacent nerves is disclosed. The spinal implant may include a body and one or more conductors. The body is configured to be inserted through the surgical opening to fit between the two endplates of the adjacent vertebrae and to maintain spacing between the endplates. The conductor has at least a first and second ends. Extending through a portion of the body, the conductor's first end is exposed and accessible through the surgical opening. The second end is exposed and positioned to communicate with at least one of the nerves. The first end of the conductor is also configured to communicate with a monitori06-13-2013
20130150968Anchoring Device and System for an Intervertebral Implant, Intervertebral Implant and Implantation Instrument - Anchoring devices, anchoring systems for intervertebral implants, intervertebral implants, and instruments and methods for implanting implants are disclosed. In preferred configurations, these various objects share the feature of comprising or cooperating with an anchoring device (06-13-2013
20130150969SPINNER BODY - An intervertebral implant can include a housing having a first end and second end with a top side and bottom side therebetween, with at least one engagement opening in the top side and/or bottom side, the implant having a first dimension from the top side to the bottom side; a shaft rotatably located within the housing and having a shaft head exposed through an end opening in the first end, the shaft head having a tool coupling member; the cam mechanism operably coupled with the shaft such that rotation of the shaft rotates the cam mechanism; and at least one engaging surface operably coupled to the cam mechanism such that rotation of the shaft protrudes and/or retracts each engaging surface through an engagement opening, wherein when each engaging surface protrudes through the engagement opening, the implant has a second dimension that is greater than the first dimension.06-13-2013
20130096684Spinal Fusion Cage System With Inserter - The present disclosure relates to a spinal fusion impactor tool that includes an attachment means for securing an implant device to the distal end of the tool, a means for adjusting the angle of the distal head relative to the handle to better position the implant for introduction into the implant site, means for remotely releasing the implant device at the distal end and a clamp device on the shaft of the tool to secure tabs, attachments and other devices. The impactor tool is preferably used in conjunction with implantation of an intervertebral fusion cage that is equipped with shims having tabs or other removing means, but may also be used to introduce, for example, an implant, graft, fusion device, wedge or distractor device into any joint space or bony region in preparation for implantation.04-18-2013
20130150971EXPANDABLE SPINAL IMPLANT DEVICE - An expandable spinal implant device for supporting vertebral bodies can include first and second body members and first and second expansion mechanisms. The body members can each have a first end positionable toward one of the vertebral bodies and can each define a hollow interior. The expansion mechanisms can be spaced apart from each other and can include a first drive shaft and a second drive shaft, respectively. The first and second drive shafts can each have a gear member fixedly coupled thereto. Each drive shaft can be threadably engaged at a first side to the first body member and at a second side to the second body member. The expansion mechanisms can be operable to effect axial displacement of the first body member relative to the second body member by rotationally driving the gear members of the first and second drive shafts.06-13-2013
20100298942Expandable Vertebral Prosthesis - The present invention relates to an expandable prosthetic implant device for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.11-25-2010
20120283837INTERVERTEBRAL IMPLANT WITH INTEGRATED FIXATION - A surgical instrument and method for inserting a spinal implant in the intervertebral disc space between two adjacent vertebrae and an anchor engageable with the implant and an adjacent vertebra are provided. The instrument includes an inserter having an engagement portion including a distal engagement surface for interfacing with the implant and a handle portion. The engagement portion includes a track for slidably translating the anchor toward the engagement surface. A kit is provided including the inserter and a tamp to force the anchor into engagement with the implant and the adjacent vertebra. The kit may also include a cutter for piercing the adjacent vertebra.11-08-2012
20120283838INTERVERTEBRAL IMPLANT - A vertebral implant for fusing adjacent vertebrae or for replacing vertebral bodies is disclosed. The implant is a biocompatble metal resorbable or radiolucent implant conforming substantially in size and shape with an end plate of a vertebra. The implant preferably has a wedge-shaped profile to restore disc height and the natural curvature of the spine. The top and bottom surfaces of the implant have areas with a plurality of teeth to resist expulsion and provide initial stability and areas devoid of any protrusions to receive implantation instrumentation. The implant also has a stackability feature. The implant provides initial stability needed for fusion without stress shielding.11-08-2012
20120283836INTERBODY FUSION DEVICE - An interbody fusion device related to implants for orthopedic surgery has a hollow skeleton made of titanium alloy to hold nonstructural cancellous bone graft. The skeleton is a U-shaped plate, whose front wall is disposed with holes. The upper and the lower end of the bottom of the U-shaped plate have inclined holes of ladder shape. The bigger end of the inclined hole is placed on the bottom surface of the bottom of the U-shaped plate, and the smaller end of the inclined hole is placed on the corresponding surface of the bottom of the U-shaped plate; the inclined hole of the U-shaped plate is disposed with screw inside. The present invention has small volume and the vertebra is partial removal, so it is more reliable for interbody fusion.11-08-2012
20120283835TISSUE FIXATION AND REPAIR SYSTEMS AND METHODS - A system and method for securing an implantable medical device to an anatomical feature, such as bony structures and/or soft tissues near the spine. The system includes a tissue fixation device and a tissue fixation device delivery tool. The tissue fixation device includes at least one bone or tissue anchor and a connecting element coupled thereto. The tissue fixation device optionally includes a flexible anchoring strap for engaging the implantable medical device. The bone or tissue anchor are configured to be deployed into the anatomical feature, and the connecting element is tightened to secure the implantable medical device to the anatomical feature.11-08-2012
20130158663EXPANDABLE INTERBODY IMPLANT AND METHODS OF USE - An intervertebral implant comprises a first component and a second component. The second component includes an actuator and a third component comprises a first ramp and a second ramp axially spaced apart from the first ramp. The third component comprises rails including at least a portion of the ramps. At least one of the ramp portions disposed with the first rail has a first height and at least one of the ramp portions disposed with the second rail has a second height. The first height is greater than the second height. The actuator is engageable with the third component to effect axial translation such that the ramps engage at least one of the components between a first configuration and a second configuration. Methods of use are disclosed.06-20-2013
20130158664EXPANDABLE INTERBODY IMPLANT AND METHODS OF USE - An intervertebral implant is provided. The intervertebral implant comprises a first component comprising an outer tissue engaging surface and an inner surface. A second component is connected to the first component, and is relatively moveable thereform. The second component comprises an outer tissue engaging surface and an inner surface. The second component includes an actuator. A third component is disposed for engagement and is movable relative to the first and second components. The third component comprises at least a first ramp and a second ramp axially spaced apart from the first ramp. The actuator is engageable with the third component to effect axial translation of the wedge such that the ramps engage the inner surface of at least one of the first component and the second component to move the components between a first, collapsed configuration and a second, expanded configuration. Methods of use are disclosed.06-20-2013
20130158665SPINAL IMPLANT - A spinal implant comprising a first component, a second component and a core component is disclosed. The first component comprises a first exterior surface configured for engaging a first vertebra and a first interior surface opposing the first exterior surface. The second component comprises a second exterior surface configured for engaging a second vertebra and a second interior surface opposing the second exterior surface. The core component is situated between the first and second components and adhered to the first interior surface and the second interior surface, wherein at least one of the first interior surface and the second interior surface comprises a concavity such that at the location of the concavity, the core component comprises a corresponding convexity. Further, the core component may further comprise a sidewall, wherein the sidewall comprises a concavity.06-20-2013
20130158667EXPANDABLE INTERBODY DEVICE SYSTEM AND METHOD - Provided is an intervertebral implant to be implanted within an intervertebral space between endplates of adjacent vertebra during use. The implant includes an upper member having an inferior surface including an upper guide track and a superior surface to contact an endplate of an upper one of the adjacent vertebra during use, a lower member having a superior surface including a lower guide track and an inferior surface to contact an endplate of a lower one of the adjacent vertebra during use, and an insert having a superior surface including an upper guide rail to engage the upper guide track during use and an inferior surface including a lower guide rail to engage the lower guide track during use. Engagement of the upper and lower guide rails with the upper and lower guide tracks, respectively, guides insertion of the insert between the upper and lower members during use, and insertion of the insert between the upper and lower members facilitates expansion of the intervertebral implant.06-20-2013
20130184825Spinal Fusion Cage with Removable Planar Elements - The present disclosure relates to an intervertebral fusion cage that is equipped with generally planar elements disposed on at least one of the top, bottom or lateral wall of a fusion cage, such planar elements reversibly covering at least one opening to prevent leakage of fusion promoting material.07-18-2013
20130184826BIOABSORBABLE ENCLOSURES - Provided are bioabsorbable enclosures for use in spinal surgical procedures such as fusion of spinal vertebrae. Also provided are methods for enhancing fusion of spinal vertebrae using bioabsorbable enclosures.07-18-2013
20130184827SPINAL IMPLANT - According to some embodiments, a method for promoting spinal fusion using a spinal implant comprises providing a spinal implant, wherein the spinal implant comprises an anterior wall, a posterior wall and two lateral walls configured to extend between the anterior wall and the posterior wall. In some embodiments, the spinal implant further comprises at least one internal chamber generally positioned between the anterior wall, the posterior wall and the two lateral walls, wherein the internal chamber being is adapted to receive at least one graft and/or other fill material. In some embodiments, at least a portion of the graft and/or other fill material delivered into the internal chamber is configured to exit through the one or more of the openings of the anterior wall.07-18-2013
20130184828Prosthesis for Cervical and Lumbar Spine - The present invention relates to an intervertebral disc prosthesis for the total replacement of an intervertebral disc of the cervical or lumbar spine. The prosthesis provided by the invention is intended for coupled physiological motion within the disc space. The design of the disclosed prosthesis is based on an inlay positioned within the articulation area of two adjacent sliding partners and provides the advantage of comprising a ball and socket shaped articulation area, which enables limitation of rotation around the sagittal, frontal and longitudinal axis. The inlay is protected against luxation due to its position within a recess of one of the adjacent sliding partners. An additional protuberance going through the inlay is protecting against luxation of the adjacent sliding07-18-2013
20130123923FACET INTERFERENCE CAGE - An implant includes a body sized and shaped for insertion into a facet joint, the implant including a first bone fixation element receiving opening extending through a portion thereof along a first axis oriented so that, when the implant is received within a facet joint in a desired configuration, a bone fixation element inserted into the first bone fixation element receiving opening will extend into a first one of the vertebra forming the facet joint.05-16-2013
20130123924EXPANDABLE SPINAL INTERBODY AND INTRAVERTEBRAL BODY DEVICES - A device for insertion into a spinal (intervertebral or intravertebral) space is expandable from a first circumference to a second circumference through axial compression of segments of the device, particularly once the device has been properly situated within a vertebral space. The interbody/intravertebral body device is characterized by a plurality of axially stacked, individual segments that are provided on a central insertion and deployment rod. Each segment includes a central plate or body to which are pivotally attached plate or leaf structures. Pivoting of the structures provides a collapsed or unexpanded position of the first circumference and an open or expanded position of the second circumference.05-16-2013
20110288646ARTIFICIAL TOTAL LUMBAR DISC FOR UNILATERAL SAFE AND SIMPLE POSTERIOR PLACEMENT IN THE LUMBAR SPINE, AND REMOVEABLE BIFUNCTIONAL SCREW WHICH DRIVES VERTICAL SLIDING EXPANSILE PLATE EXPANSION, AND INTERPLATE WIDENING, AND ANGLED TRACTION SPIKES - A total artificial expansile disc and a method for posterior insertion between a pair of vertebral endplates are disclosed. The total artificial expansile disc includes at least one pair of substantially parallel plates that move apart along a first axis, in order to occupy a space defined by the vertebral endplates. In another embodiment, each of substantially parallel plates includes a first plate and a second sliding plate. An expansion device or tool is used to move the substantially parallel pair of plates apart along the first axis. A core is disposed between the pair of plates, and the core permits the vertebral endplates to move relative to one another. A ball limiter or ball extender prevents the core from being extruded from between the substantially parallel plates.11-24-2011
20110313531IMPLANT FOR INTERVERTEBRAL SPACE - An implant for an intervertebral space with a shaped body. The implant makes possible rotation of the implant about the longitudinal axis of the body in one direction and prevents such rotation in the opposite direction.12-22-2011
20110313530System And Methods For Performing Surgical Procedures and Assessments - The present invention involves systems and related methods for performing surgical procedures and assessments, including the use of neurophysiology-based monitoring to: (a) determine nerve proximity and nerve direction to surgical instruments employed in accessing a surgical target site; (b) assess the pathology (health or status) of a nerve or nerve root before, during, or after a surgical procedure; and/or (c) assess pedicle integrity before, during or after pedicle screw placement, all in an automated, easy to use, and easy to interpret fashion so as to provide a surgeon-driven system.12-22-2011
20110313529Tissue Removal Tools And Methods Of Use - Discectomy or disc preparation system that includes a guide member that is changeable from a deployment configuration for insertion into an intervertebral disc space to a deployed configuration upon being deployed into the intervertebral disc. The system also includes at least one tissue manipulator, such as cutting, scraping and extraction elements, that can be moved or tracked longitudinally along the guide member into and through the intervertebral disc space.12-22-2011
20110313528STANDALONE INTERBODY FUSION DEVICE WITH LOCKING AND RELEASE MECHANISM - An implantable assembly includes an anchor member and a spacer. The anchor member has a hub portion and a shank portion. The spacer includes a central opening to receive bone fusion material and at least one passage for receiving the anchor member. In one embodiment, the passage includes first and second means for locking the anchor member in the passage against backout. The second means for locking the anchor member in the passage against backout includes means for centering the anchor member in the passage and means for stabilizing the anchor member in the passage. In addition, the second means for locking the anchor member in the passage against backout provides a mechanical advantage to assist in driving the screw into bone and mechanical advantage to assist in reversing the screw out of the spacer.12-22-2011
20130190880SPINAL TISSUE DISTRACTION DEVICES - Spinal tissue distraction devices that include a member which has a pre-deployed configuration for insertion between tissue layers and a deployed configuration in which the member, by change of configuration, forms a support structure for separating and supporting layers of spinal tissue07-25-2013
20130190876EXPANDABLE INTERBODY IMPLANT AND METHODS OF USE - An intervertebral implant comprises a first component and a second component. A first arm extends between a first end and a second end. A second arm extends between a first end and a second end. The first ends of the arms are engageable with the first component. An actuator is disposed within the second component and includes a first member and a second member. The members are configured for axial translation relative to the actuator. The first member translates in a first axial direction and is engageable with the first arm and the second member translates in a second axial direction and is engageable with the second arm such that the arms move the first component and the second component between a first, collapsed configuration and a second, expanded configuration. Methods of use are disclosed.07-25-2013
20130190878METHOD FOR STABILIZING SPINE - A method of stabilizing a portion of a spine includes pivoting first and second members of an expandable spinal implant relative to one another to a closed configuration in which the spinal implant has a compact profile, inserting the spinal implant in the closed configuration into the spine between first and second vertebral bodies, and pivoting and locking the first and second members crosswise to an expanded configuration while the spinal implant is within the spine. The first and second members are separate from and coupled to one another.07-25-2013
20120010714BI-DIRECTIONAL FIXATING/LOCKING TRANSVERTEBRAL BODY SCREW/INTERVERTEBRAL CAGE STAND-ALONE CONSTRUCTS AND POSTERIOR CERVICAL AND LUMBAR INTERARTICULATING JOINT STAPLING GUNS AND DEVICES FOR SPINAL FUSION - A bi-directional fixating transvertebral (BDFT) screw/cage apparatus, a posterior lumbar facet staple and a staple gun for a posterior lumbar facet staple, a posterior cervical facet joint staple, and a staple gun for a posterior cervical facet joint staple are provided. The BDFT apparatus includes an intervertebral cage including a plurality of internal angled screw guides, a plurality of screw members, and a screw locking mechanism that prevents the screw members from pulling out of the internal angled screw guides. The internal angled screw guides orient a first screw member superiorly and a second screw member inferiorly. The intervertebral cage is adapted for posterior lumbar intervertebral placement, anterior lumbar intervertebral placement, anterio-lateral thoracic intervertebral placement, or anterior cervical intervertebral placement.01-12-2012
20120029645SPINE SURGERY METHOD AND INSTRUMENTATION - Surgical instrumentation for use in placing an implant into a disc space between a pair of spinal vertebrae may include: (a) a distractor having a distal end that may be placed into the disc space between the pair of spinal vertebrae; (b) an inserter for use in moving the implant toward the disc space between the pair of spinal vertebrae; and, (c) a distractor/inserter rail/groove interconnection that interconnects the distractor and the inserter for relative movement thereby.02-02-2012
20120029644Compliant Interbody Fusion Device with Deployable Bone Anchors - An interbody fusion implant with deployable bone anchors includes a support member, a monolithic body that accommodates the support member, and a longitudinal hole along a vertical length of the support member. The support member includes a first end and a second end. The second end includes two flanges. The flanges are configured to dig into an endplate of a vertebral body. The flanges of the support member provide a location fixation on an implantation of the interbody fusion implant into the vertebral body. The support member may also include at least one of a clip shaped support member and an I-shaped support member. The I-shaped support member may allow a rigidity and a support in flexion-extension through a living-hinge positioned in a middle of the I-shaped support member. The longitudinal hole sustains loads imported on the interbody fusion implant and allows the interbody fusion implant to flex freely.02-02-2012
20120029643RESTORATIVE DEVICE - The present invention provides a disc restoration system for relieving symptoms of a degenerative disc, comprising: a) a percutaneously insertable expandable element (88) adapted to be (i) inserted in between two adjacent vertebraes of the spinal cord; and, (ii) expanded to form a scaffold; said scaffold provides mechanical support to said two adjacent vertebraes so as to restore said degenerative disc to approximately the dimensions of a normal disc; b) an injectable filler having a first flowable state, and a second non-flowable set state; the filler is configured for being introduced, in said first flowable state, into a confined volume formed by the expandable element and the tissues, following the full expansion of said expandable element in said disc; and, following introduction of said filler, said filler is adapted to set into said second non-flowable state; such that following setting of said filler into said second state said disc is internally supported by said set filler.02-02-2012
20120029642Apparatus and Methods for Inserting an Implant - Methods and apparatus for inserting an implant into a cavity provide for: disposing an implant between opposing first and second ramps of an implant insertion instrument; orienting first and second vertebral contact surfaces of the ramps such that they define an initial, non-zero angle therebetween; inserting the first and second ramps into an intervertebral space of a spine; advancing the implant distally along and between the ramps such that the first and second vertebral contact surfaces of the first and second ramps separate while holding the initial angle substantially constant.02-02-2012
20120029641System and Methods for Spinal Fusion - A system and method for spinal fusion comprising a spinal fusion implant of non-bone construction releasably coupled to an insertion instrument dimensioned to introduce the spinal fusion implant into any of a variety of spinal target sites.02-02-2012
20120029640VERTEBRAL IMPLANT END CAP - An implant and method for insertion between adjacent vertebral members. The implant comprising an implant body with a base section having a plurality of base extensions and securing depressions, and an end cap adapted for selective axial positioning at a selected point on the base section and subsequent rotational adjustment about an implant axis. The end cap also comprising a fixed aperture and a variable aperture, both configured to receive and lockingly engage corresponding base extensions and securing depressions to securely maintain the end cap positioned on the base section. The fixed and variable passages are configured and located to permit rotational end cap adjustment. The implant imparts end cap height and angulation to an adjacent vertebral body at the selected or desired point when the implant is positioned and lockingly engaged in the intervertebral space.02-02-2012
20120029639INTERBODY SPINAL IMPLANTS AND INSERTION TECHNIQUES - An implant for a spinal column is disclosed that is capable of being inserted into a patient in a first orientation having a reduced or minimum height and then rotated to a second orientation providing a second or maximum height, wherein in each orientation the height of the implant extends in a direction from one endplate toward the other endplate of adjacent vertebrae. The implant includes first and second side-by-side elongate members that are separately rotated from the first orientation to the second orientation after implantation. The first and second implant members are interconnected by a housing that maintains the first and second members in side-by-side relation.02-02-2012
20130197643INTERVERTEBRAL DISC PROSTHESIS AND METHOD - The present disclosure generally relates to an intervertebral disc prosthesis for partially or totally replacing an organic intervertebral disc. The disc prosthesis includes an interbody device, a face plate and a pair of locking mechanisms for achieving dual fixation in the cephalad and caudal direction. Methods according to the present disclosure achieve such dual fixation in a single fixation step.08-01-2013
20130197644METHOD AND SYSTEM FOR PERFORMING SPINAL SURGICAL PROCEDURES USING NATURAL ORIFICES - This disclosure describes devices and methods for performing spinal surgical procedures. In some embodiments, a method may include positioning at least a portion of at least one surgical instrument in at least one naturally occurring orifice of a human by a user. In some embodiments, a method may include accessing an interior space of the human using at least one of the surgical instruments. The method may include performing at least a portion of a spinal surgical procedure using at least one of the surgical instruments positioned in at least one of the naturally occurring orifices of the human. The method may include removing at least one of the surgical instruments from at least one of the naturally occurring orifices upon completion of at least a portion of the spinal surgical procedure.08-01-2013
20130197645SYSTEMS AND METHODS FOR FACET JOINT TREATMENT - A facet implant system for implanting between a superior facet and an inferior facet. The facet implant system includes a first facet implant component and a second facet implant component. The first facet implant component has a first articulating surface and a first engagement surface located opposite the first articulating surface. The first facet implant component has a leading edge and a trailing edge. The first facet implant component has teeth that extend from the first engagement surface. The teeth are arranged in a plurality of rows and wherein teeth in adjacent rows are offset from each other. The second facet implant component has a second articulating surface and a second engagement surface located opposite the second articulating surface. The second facet implant component has teeth that extend from the second engagement surface.08-01-2013
20130197646VERTEBRAL FACET JOINT PROSTHESIS AND METHOD OF FIXATION - Devices and methods for altering the spacing and motion at the facet joints of the vertebral column are provided. One embodiment of the invention comprises a prosthesis with surfaces configured to articulate with the facets of the facet joint. A retaining member for anchoring the prosthesis within the facet joint is optionally included. Methods for surgically and less invasively implanting the prosthesis and securing the prosthesis to the articular processes or surrounding soft tissue are also provided.08-01-2013
20130197647EXPANDABLE SPINAL INTERBODY AND INTRAVERTEBRAL BODY DEVICES - A device for insertion into a spinal (intervertebral or intravertebral) space is expandable from a first circumference to a second circumference through axial compression of segments of the device, particularly once the device has been properly situated within a vertebral space. The interbody/intravertebral body device is characterized by a plurality of axially stacked, individual segments that are provided on a central insertion and deployment rod. Each segment includes a central plate or body to which are pivotally attached plate or leaf structures. Pivoting of the structures provides a collapsed or unexpanded position of the first circumference and an open or expanded position of the second circumference.08-01-2013
20130197648IMPLANT FOR THE SPINAL COLUMN AND ACTUATING INSTRUMENT - The invention relates to an implant device, comprising an actuating instrument (08-01-2013
20130197642EXPANDABLE IMPLANT FOR MAMMALIAN BONY SEGMENT STABILIZATION - Embodiments of bony region stabilization implants are described generally herein including a controllable expandable implant for placement between two bony segments including vertebrae. Other embodiments may be described and claimed.08-01-2013
20120035731INTERVERTEBRAL DISC PROSTHESIS - The invention relates to an intervertebral disc prosthesis (02-09-2012
20130204370INTERVERTEBRAL IMPLANT AND INSERTION INSTRUMENT - An intervertebral implant and associated insertion instrument. The intervertebral implant includes an instrument engagement interface including first and second channels extending along opposite sides of the implant forwardly from a trailing end wall of the implant and a positioning projection extending rearward from the trailing end wall of the implant. The insertion instrument includes a grasping mechanism for engagement with the instrument engagement interface. The grasping mechanism includes first and second jaws including grasping portions positionable in the first and second channels and an enlarged opening defined between the first and second jaws for receiving the positioning projection therein.08-08-2013
20130204372Systems and Methods for Inserting a Spinal Device - An insertion device is provided for inserting a spinal device such as an intervertebral implant within a spinal joint. The implant includes at least first and second members, with the first having a convex articulation surface and the second member having a concave articulation surface. The two articulation surfaces provide an articulation interface to substantially mimic natural kinetic motion of the spine. The insertion device can be attached to at least one of the first and second members. In one form, the insertion device is configured such that the first and second members are movable relative to one another while being held to allow the members to form a compact wedge configuration. The insertion device is configured to actively pivot the implant about the implant gripping end of the device and to allow manipulation and release of the implant members in any pivoted orientation from approximately 0 to 90 degrees.08-08-2013
20130204373INTERBODY FUSION MATERIAL RETENTION METHODS - Methods of inserting and retaining interbody fusion material are disclosed. In some embodiments, the methods include inserting an anchored implant comprising a bone anchoring portion and an engagement portion. A method may also include inserting at least one bone fusion material within a disc space between two adjacent vertebral bodies. In some embodiments, a method includes driving the bone anchoring portion into an outer surface of at least one of the adjacent vertebral bodies and recessing the bone anchoring portion within the outer surface of the at least one adjacent vertebral body.08-08-2013
20130204374IN-SITU FORMED SPINAL IMPLANT - An in-situ formed spinal implant is provided, including an elongate strip having a proximal end and an opposite distal end, the strip having a plurality of spaced teeth disposed along edges of the strip. The strip has a generally arcuate or concave cross-section and is configured for being coiled into a spiral from the proximate end to the distal end for placement between adjacent spinal vertebrae, such that upon formation of the coiled shape, the teeth on a first edge engage one of the vertebrae, and teeth of an opposite, second edge engage the other of the vertebrae.08-08-2013
20090182429Total joint Replacement - An artificial vertebral joint for interposition between a superior vertebra and an inferior vertebra comprises a pair of bilateral joint subcomponents. Each joint subcomponent includes a superior component including a superior vertebra engaging surface and an inferior component including an inferior vertebra engaging surface. Each joint subcomponent further includes a spacer extending between the superior component and the inferior component. The spacer includes a first modulus of elasticity and a second modulus of elasticity. The first modulus transitions to the second modulus with a gradient change.07-16-2009
20130204371BONE FUSION DEVICE, SYSTEM AND METHOD - A bone fusion method, system and device for insertion between bones that are to be fused together in order to replace degenerated discs and/or bones, for example, the vertebrae of a spinal column. The bone fusion device comprises a frame and one or more extendable plates that are able to be angled, rotatable, adjustable, and have top profiles designed to correct and/or match the replaced discs/bones. The bone fusion device is able to be inserted between or replace the vertebrae by using a minimally invasive procedure wherein the dimensions and/or other characteristics of the bone fusion device are selectable based on the type of minimally invasive procedure.08-08-2013
20120083891CERVICAL INTERVERTEBRAL PROSTHESIS - A spinal implant includes two connection plates dimensioned for connection to adjacent vertebral bodies and a hinge core. The hinge core together with one connection plate forms a hinge between a generally spherical hinge extending from the one connection plate into an opening of a generally spherical depression in the hinge core. The opening is dimensioned to be elastically deformed to allow passage of the generally spherical hinge into the generally spherical depression. The hinge core bears on a slide surface which extends substantially parallel to the direction of the other connection plate and permits relative translatory movement of the hinge core. The walled receiving area limits this relative translatory movement of the hinge core. The stability of the spinal implant with respect to laterally incident forces is increased.04-05-2012
20120083889INTERVERTEBRAL DEVICE AND METHODS OF USE - An intervertebral device comprises a plurality of struts that are rotatably associated with each adjacent strut to form a modifiable inner volume V for bone graft containment.04-05-2012
20120083886Disc Implant - A problem with total disc implant surgery appears to be the positioning of the implant which if not correct may lead to pain and eventually new surgery. The present invention relates to an improved disc implant (04-05-2012
20120083885METHOD OF INSERTING SURGICAL IMPLANT WITH GUIDING RAIL - A prosthetic intervertebral spacer is disclosed. The spacer preferably includes a body and an interface extending away from the body for use during implantation of the spacer. Methods of implanting the spacer and tools used during such procedure are also disclosed.04-05-2012
20120083884SURGICAL IMPLANT WITH GUIDING RAIL - A prosthetic intervertebral spacer is disclosed. The spacer preferably includes a body and an interface extending away from the body for use during implantation of the spacer. Methods of implanting the spacer and tools used during such procedure are also disclosed.04-05-2012
20120095562ARTIFICIAL DISC - An artificial intervertebral disc includes an upper joint (04-19-2012
20120095561INTERVERTEBRAL IMPLANT - A method for fixation of an intervertebral implant includes the steps of: a) applying a spreading force to a first and second adjacent vertebral bodies; b) removing the intervertebral disc between the adjacent first and second vertebral bodies; c) inserting a shaft of the bone anchors into the vertebral bodies, and fixing a head of the bone anchors to an intervertebral implant.04-19-2012
20130211525BONE FUSION DEVICE, APPARATUS AND METHOD - A bone fusion method, apparatus and device for insertion between bones that are to be fused together and/or in place of one or more of the bones, such as, for example, the vertebrae of a spinal column. The bone fusion device comprises one or more extendable plates having a central rib. The bone fusion device includes one or more support channels configured to receive an insertion instrument that is then secured to the bone fusion device via a coupling mechanism. As a result, the coupled device is able to be securely positioned between vertebrae using the insertion instrument with minimal risk of slippage.08-15-2013
20130211527SPINAL INTERVERTEBRAL DISK REPLACEMENT MATERIAL FOR NUCLEUS PULPOSUS AND PRODUCTION METHOD THEREOF - The present invention is directed to a method for replacing a nucleus pulposus in an intervertebral disk, which method includes: providing a spinal intervertebral disk replacement molded-dry-product for nucleus pulposus including a polyvinylalcohol gel having a percentage of saturated water content of 18 to 50 wt % before irradiation and being irradiated with γ ray at an intensity of 20 to 100 kGy; and inserting the spinal intervertebral disk replacement molded-dry-product for nucleus pulposus into a prosthetic space inside an anulus fibrosus through an incision opening of the anulus fibrosus, wherein the molded-dry-product changes its shape into an almost cylindrical or almost elliptically cylindrical shape so that a hollow region comes into existence at a shape deformation rate of 150 vol % or more and at a volume swelling ratio of 135 vol % or less by water absorption.08-15-2013
20130211526EXPANDABLE IMPLANT - An expandable implant (08-15-2013