Entries |
Document | Title | Date |
20080215058 | Spine 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. | 09-04-2008 |
20080228191 | Femoral elevator - A bone retractor that may be used as a femoral elevator. The bone retractor includes a clamp for attaching the bone retractor to an operating room bed rail, a post attached to the clamp via a hinged joint, a mount slidably attached to the post and a hook coupled to the mount which in turn is attached to the post. A shaft passes through the interior of the post and attaches to clamp. The clamp has a lower jaw and an upper jaw. An opening is formed in the lower jaw and an end of the shaft is engaged in the opening. The shaft has two sections with a universal joint connecting these two sections. The born retractor is attached to the operating room bed rail by applying clamp to the bed rail. With bone retractor attached to the bed rail, the post is lowered towards the wound. The hook is placed under the bone, and the bone exposed by holding the hook or the post and lifting the bone out of the wound. A knob is tightened to lock the post and consequently the hook in the raised position while the surgeon performs the surgery. When the surgeon is ready, the bone is lowered in the wound by loosening the knob and slowly placing the bone in the desired position in the wound. | 09-18-2008 |
20080234686 | Intervertebral disc prosthesis, surgical methods, and fitting tools - An intervertebral disc prosthesis designed to be substituted for fibrocartilaginous discs ensures a connection between the vertebra of the vertebra column or the end of the latter. The prosthesis includes a pair of plates spaced from each other by a nucleus. The prosthesis has increased stability by providing the nucleus with a translation or rotation stop, or by inducing an angular correction between its plates contacting vertebra, or a combination of these characteristics. The stop includes pales external to the nucleus and contact surfaces perpendicular to their contact directions. Surgical methods and instrumentation for implanting the prosthesis are also described. | 09-25-2008 |
20080234687 | DEVICES FOR TREATING THE SPINE - Method and apparatus are disclosed for distracting tissue and particularly spinal tissue. The device and method may include insertion of at least one elongated member and an augmenting member to form a structure between the tissues to be distraction, such that a dimensional aspect of the structure is augmented upon movement of the augmenting structure. | 09-25-2008 |
20080249528 | Rotating Interspinous Device - The invention concerns an implant which consists in a device used between the spinous processes to produce a distraction and a decompression. It consists of two separate parts, one female ( | 10-09-2008 |
20080255567 | Spinal distraction system - A spinal distraction apparatus includes substantially parallel fixed and movable legs, each of which has opposite front and rear ends. A rear rod projects rigidly from the rear end of the fixed leg and passes slidably through the rear end of the movable leg. A front rod extends rigidly from the fixed leg and is parallel to the rear rod. The front rod is formed with an array of external threads and nuts are threadedly engaged on the external threads for engaging opposite sides of the movable leg at locations adjacent the front rod. Thus, the position of the movable leg relative to the fixed leg can be controlled by adjusting the positions of the nuts. Front ends of the fixed and movable legs have attachments mounted thereto for engaging pedicle screws or other structures used in spinal distraction surgery. | 10-16-2008 |
20080262501 | Multi-function corpectomy instrument - A multi-functional surgical instrument assembly for installing an implant between adjacent bone structures is disclosed that is capable of distracting adjacent bone structures, generating a measurement for a prosthetic implant, and installing the prosthetic implant without being removed from the patient. The surgical instrument includes a frame having a pair of opposing distracter arms movable toward or away from one another to a predetermined setting indicative of a height requirement of the implant. A pair of opposing spreader support segments is connected with a respective distal end of the distracter arms and extend downwardly a predetermined distance in relation to the distracter arms. A pair of opposing implant guide segments is connected with a distal end of the opposing spreader support segments. An inserter is detachably connected with the prosthetic implant, wherein the prosthetic implant is positioned between the opposing implant guide segments using the inserter. | 10-23-2008 |
20080269758 | IMPLANTABLE DISTRACTOR - A spinal implant for stabilizing two adjacent vertebrae having a damaged disc therebetween is assembled in situ. An elongated tool is used to insert a flat U-shaped distractor in the disc space through a low profile incision with both legs of the U-shaped distractor contacting both end plates of the adjacent vertebrae. The tool is rotated 90 degrees rotating the distractor 90 degrees so that each leg of the distractor contacts one end plate of the adjacent vertebrae, respectively, to restore intervertebral space. An elliptical bone tray is slid along the tool to seat within the U-shaped distractor. The tool is removed and a retainer replaces it to lock the bone tray and the distractor together. A screw is used to lock the bone tray to the distraction device, the screw slides down the cannula which is the tool inserted over the rod that the distraction implant is attached to. | 10-30-2008 |
20080287955 | Distractor for use in spinal surgery and method of use thereof - Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleeve removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve. | 11-20-2008 |
20080294171 | Device and method for lumbar interbody fusion - A method for performing percutaneous interbody fusion is disclosed. The method includes the steps of inserting a guide needle posteriorly to the disc space, inserting a dilator having an inner diameter slightly larger than the outer diameter of the guide needle over the guide needle to the disc space to enlarge the disc space, and successively passing a series of dilators, each having an inner diameter slightly larger than the outer diameter of the previous dilator, over the previous dilator to the disc space the gradually and incrementally increase the height of the disc space. Once the desired disc height is achieved, the guide needle and all the dilators, with the exception of the outermost dilator, are removed. An expandable intervertebral disc spacer is then passed through the remaining dilator and positioned in the disc space. The disc spacer is expanded to the required disc height, and then a bone matrix is passed through the dilator to fill the disc space. The dilator is then removed. An expandable intervertebral disc spacer is also disclosed, having a tapered bore that causes greater expansion of one end of the spacer with respect to the other. A kit for performing the percutaneous interbody fusion procedure is also disclosed. | 11-27-2008 |
20080300601 | SPINE 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. | 12-04-2008 |
20090005784 | SPINAL IMPLANT DISTRACTOR/INSERTER - A method for distracting a pair of adjacent vertebrae and inserting an implant within the intervertebral space between the adjacent vertebrae using a posterior angle is described. The method employs a vertebral distractor-inserter comprising a housing, a pair of opposing arms in mechanical communication with the housing, a driving rod extending through at least a portion of the housing and between the arms, wherein the driving rod comprises an axis and a surface with a plurality of angled ratchet teeth on at least a portion of the surface, and a ratchet drive mechanism in mechanical communication with the driving rod. | 01-01-2009 |
20090018544 | METHOD AND APPARATUS FOR SOFT TISSUE BALANCING - A soft tissue balancer in the form of a tensioner, a controller, and software for operating the controller and, correspondingly, the tensioner. The tensioner may be configured for receipt between the femur and the tibia and includes a pair of condylar components having individual, extendable support platforms. The support platforms may be raised or lowered to contact the femoral condyles and distraction the tibia and femur for ligament tensioning and soft tissue balancing. Once the support platforms contact the femoral condyles, range of motion testing of the knee joint may be performed and the various heights achieved and/or forces experienced by the support platforms recorded. | 01-15-2009 |
20090018545 | Automatic Bone Traction Device - An automatic bone traction device for correction bone deformities is disclosed. The automatic bone traction device can include a main body, a step motor, a series of transmission gears, and connectors. In one implementation, the step motor operates at a speed of eight steps per second, and the series of transmission gears can step down the motion of the step motor to two revolutions per day. The generated driving torque is then transmitted to a bone distractor, such as a commercially available intermittent distractor. The automatic bone traction device is capable of activating the bone distractor continuously at a rate of two revolutions per day. Advantageously, a flexible shaft is used to connect between the transmission gear assembly and the bone distractor. The flexible shaft allows the main body of the bone traction device to be mounted away from the bone distractor at a convenient location for the user. | 01-15-2009 |
20090036895 | Spinal distractor, compressor, and rod engaging system and method - Apparatus and methods for distracting or compressing distance between a first and second boney structure and for engaging a connecting element. | 02-05-2009 |
20090036896 | ENDO-DISTRACTOR - The invention relates to a device for the distraction of bones or bone segments. The device comprises an anchoring screw having a longitudinal axis, a screw tip, a screw end for rotatably driving the anchoring screw, a threaded shank which adjoins the screw tip and has a screw thread, and a screw shank adjoining the screw end; and a distraction sleeve axially displaceable on the screw shank including a rear end, a front end, a through-bore extending coaxially therebetween, an external thread adjoining the front end, and a coupler portion formed in the rear end for receiving a driving tool. The anchoring screw comprises a collar positioned between the threaded shank and the screw shank that radially projects at least from the screw shank and which serves as an axial stop for the front end of the distraction sleeve when the distraction sleeve is positioned over the screw shank. The through-bore has a boring section with an enlarged cross-section which adjoins the rear end provided with a lateral surface and a seal ring coaxially arranged between the lateral surface and the screw shank. | 02-05-2009 |
20090043311 | Offset distraction device and method of use - A distraction device employing a bone fastener and an axially displaced post to provide enhanced access to a surgical site. The distraction device is comprised of a rigid arm or link having a bone fastener, e.g., screw, extending from a first end and a post extending oppositely to the fastener, from a second end. The bone fastener is configured so that when anchored to a patient's bone, the rigid arm is able to pivot around the fastener to enable a surgeon to position the post for optimal access. | 02-12-2009 |
20090076515 | INSTRUMENT FOR DISIMPACTING A DAMAGED VERTEBRAL BODY - The invention relates to an instrument for disimpacting a damaged vertebral body, comprising a unit, whose effective length can be adjusted in a longitudinal direction and whose underside can be positioned on the skin above a damaged vertebral body. According to the invention, supports that can be displaced in relation to one another are located on the adjustable unit, the distance between the exteriors of the two supports that face away from one another in the longitudinal direction defining the effective length of the adjustable unit. The adjustment range of the effective length is dimensioned in such a way that the supports can be positioned between lever elements, which are provided for the distraction of the vertebral bodies lying cranially and caudally adjacent to the damaged vertebral body and the supports are designed to maintain the mutual distance between the lever elements. | 03-19-2009 |
20090076516 | DEVICE AND METHOD FOR TISSUE RETRACTION IN SPINAL SURGERY - The invention relates to a system and methods for retracting soft tissue during spinal repair or reconstruction procedures, particularly procedures within intervertebral sites of degenerated discs and associated neural compression. A retractor system includes an implantable bone plate, two or more retractor blades, the bone plate and retractor blades being mutually engageable; and a mechanism to adjust the retractor blade relative to the bone plate. In some embodiments, the retractor system may be applied to span more than one intervertebral space. An implanted retractor system provides an aperture for a clear operating field, and protects collateral tissue. A method for retracting soft tissue to facilitate spinal surgery includes securing a bone plate to adjacent vertebral bodies, engaging one or more retractor blades to the bone plate; and adjusting the angular position of the retractor blade relative to the bone plate so as to retract tissue lying external to the bone plate. | 03-19-2009 |
20090082775 | Spondylolisthesis reduction system and method - A percutaneous spondylolisthesis reduction instrument and method are disclosed for minimally invasive surgery. The spondylolisthesis reduction instrument includes tangs threadingly connected to an upper knob at the proximal end and configured to connect with a tower construct at the distal end. When connected to a tower which is attached to a bone fastener assembly implanted in a vertebral body, rotation of the upper knob retracts the tangs and the connected tower construct and vertebral body to reduce spondylolisthesis. | 03-26-2009 |
20090088764 | DUAL PIVOT INSTRUMENT FOR REDUCTION OF A FIXATION ELEMENT AND METHOD OF USE - A spinal fixation element fixation reduction system is provided herein. In general, the system can include a cap element with a bore having a central axis extending therethrough wherein the cap element is configured to releasably engage any type of surgical device (e.g., an access sleeve, a vertebral body rotator, etc.). Further, the system can include a driver configured to be slidably and removably positioned through the cap element. The system can also include an actuator configured to apply a force to the driver substantially along the central axis of the cap element thereby moving the driver in a distal direction so as to effect reduction of a spinal fixation element into a bone anchor. Additionally, a method of reducing a spinal fixation element into a bone anchor is also provided wherein the method can be performed as a minimally invasive surgical procedure or as an open procedure. | 04-02-2009 |
20090088765 | Spinal Interbody Distractor - A spinal interbody distractor is provided that is configured to provide distraction of adjacent vertebrae after implantation within a spinal disc cavity through manual rotation of the distractor once implanted. Such implantation is preferably, but not necessarily, through minimally invasive surgical techniques. In one form, the distractor is configured to be rotated 90° to 180° after implantation to provide distraction of adjacent vertebrae. The distractor has a lateral side to lateral side height of a first length and a superior end to inferior end height of a second length that is greater than the first length. This configuration allows the distractor to be inserted into a spinal disc cavity having an opening with a height that is smaller than an end height of the spinal disc cavity after implantation thereof, thereby providing distraction of adjacent vertebrae. The spinal interbody distractor may have one or more cavities, areas, openings and/or bores for spinal fusion material when the distractor is used as a fusion body. The spinal interbody distractor is made from a biocompatible material such as a thermoplastic (e.g. PEEK), a polymer, metal, combination thereof or otherwise, such as desired and/or is appropriate. | 04-02-2009 |
20090088766 | Distraction Osteogenesis Methods and Devices - Methods and devices for distraction osteogenesis are disclosed employing an energy storage device and a controlled release of energy to provide a separating force. For example, bone expansion devices can include a first anchor element attachable to a first segment of bone, a second anchor element attachable to a second segment of bone, and an actuator for applying a separating force between the first and second anchor elements. The actuator can include a potential energy storage device and a controller for releasing energy from the energy storage device to provide the separating force. | 04-02-2009 |
20090099568 | DEVICE AND METHOD FOR VARIABLY ADJUSTING INTERVERTEBRAL DISTRACTION AND LORDOSIS - A removably insertable surgical apparatus is configured for insertion between adjacent vertebrae during spinal surgery and adjusted in-situ to produce varying degrees of distraction, neural-decompression, lordotic, kyphotic and/or scoliotic adjustment in the spine. | 04-16-2009 |
20090099569 | Intervertebral implant - In the case of an intervertebral implant with at least one abutment element forming a vertebral body abutment surface, in which the vertebral body abutment surface comprises at least two relatively movable parts, which in a first insertion position are arranged in relation to one another so that they jointly assume a small cross-section, and in a second implantation position so that the cross-section of the vertebral body abutment surface is increased in size in relation to the insertion position, and with an adjusting device for moving the movable parts from the insertion position into the implantation position, to simplify the adjustment of the movable parts from the insertion position into the implantation position, it is proposed that the adjusting device comprises at least one flexible pull element, which acts on one of the relatively movable parts and when pulled moves this relative to the other part into the implantation position. | 04-16-2009 |
20090105710 | Mechanical Distractor To Facilitate Surgery And Evaluation Of Joints - A medical apparatus having a tensioning device secured to a fixed point; a wire or pin inserted transversely through a bone; and a tension line connecting the tensioning device to the wire or pin. The tension line transmits a force from the tensioning device to the wire or pin to facilitate distraction of a joint of a subject. | 04-23-2009 |
20090112214 | Device and Method for Hip Distention and Access - A device for accessing and distending a joint comprises a distraction structure having a generally tapered distal portion adapted to penetrate a tissue region and create an access space within a joint. The distraction structure also includes a lumen extending from a proximal surface to a distal portion. The device further includes a distention structure deployable through the lumen and adapted to exert a force between a first joint surface and a second joint surface and create a working space. The distention structure may, in some embodiments, include an elongate member having a proximal end, a distal end, and a lumen extending along at least a portion of the length of the elongate member, a first expandable region deployable from a first substantially collapsed position to a second substantially expanded position, the first expandable region adapted to exert a force between the first joint surface from the second joint surface. | 04-30-2009 |
20090125030 | Dilator - A dilator that facilitates implantation of an interspinous spacer is provided. The dilator includes a proximal portion and a tapered distal portion interconnected by an elongated body portion. The tapered distal portion is ideally suited for splitting ligamentous tissue for creating a posterior midline pathway through the supraspinous ligament as well as for distracting the adjacent spinous processes. Two oppositely located and longitudinally extending channels or grooves are formed in the outer surface of the dilator for stabilizing the dilator with respect to the spinous processes. An accompanying cannula together with the dilator form a system for the distraction of the adjacent spinous processes, stabilization of the spinous processes with respect to the system and creation of a working channel for the implantation of an interspinous spacer. | 05-14-2009 |
20090131943 | MEDICAL INSTRUMENT FOR DISTRACTION OR COMPRESSION - A medical instrument for use in orthopedic distraction or compression. The instrument has a pair of handles and a pair of blades removably attached to an actuator. The handles and the blades may be attached on either side of the actuator such that the blades may be used on the left or right side of the spine or other structure being distracted or compressed and such that the handles may be removed thus freeing up space in the incision or portal for other instruments. The handles and the blades are connected to the actuator through a ratchet and pawl mechanism whereby pressing the handles together causes the blades to be spread apart at their distal end while maintaining a window between the blades at their proximal ends to optimize visualization of the operative site. Movement of the blades at their proximal ends is amplified at their distal ends. | 05-21-2009 |
20090131944 | MIDFACE DISTRACTOR - An external midface distractor is disclosed for attachment to the bones of a patient's cranium and midface region for performing an osteogenesis procedure to gradually lengthen a portion of the craniofacial skeleton. The midface distractor generally includes an external halo assembly for engaging the patient's cranium, a central adjustment assembly, a vertical central rod, at least one horizontal cross piece assembly including at least one distraction screw, and at least one bone engaging portion which is mounted to the targeted facial bone to be distracted. The midface distractor may also include various individual adjustment mechanisms that provide surgeons greater and more precise control over the distraction vector than is available with current devices. That is, the midface distractor may provide surgeons with additional anterior-posterior and medial-lateral adjustments, thus permitting surgeons to more precisely and accurately control the direction of distraction. The midface distractor may also permit surgeons to easily and accurately alter the direction of distraction after the distraction procedure has commenced thereby providing surgeons the ability to readjust the ultimate vector of distraction anytime during the procedure, as necessary. Methods are provided for using the distractor to conduct a distraction procedure. | 05-21-2009 |
20090157084 | COLLAPSIBLE AND EXPANDABLE DEVICE AND METHODS OF USING SAME - The present invention provides a device ( | 06-18-2009 |
20090177204 | Apparatus and Methods for Separating Internal Bone Fixation Device from Introducer - Apparatus and methods for separating an internal bone fixation device from an introducer are disclosed herein. A device for separating an internal bone fixation device from an introducer includes a functional portion having an outer shaft surrounding and controlling operation of a cutting mechanism; and a control portion having an actuating mechanism for initiating activation of the outer shaft. | 07-09-2009 |
20090177205 | METHODS AND APPARATUS FOR ACCESSING AND TREATING THE FACET JOINT - Methods and systems are disclosed for accessing and treating the interior of the facet joint for vertebral distraction and immobilization. The systems include a number of tools that facilitate access to the facet joint, distraction of the articulating decortication of the articulating surfaces, and delivery of implants and agents into the facet joint for fusion. | 07-09-2009 |
20090182339 | Tissue Distraction Device - 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. | 07-16-2009 |
20090192514 | IMPLANTABLE DISTRACTION OSTEOGENESIS DEVICE AND METHODS OF USING SAME - An osteogenesis distraction device for securement to separate bone segments in the body of a patient and operative to generate new bone between said bone segments by the gradual application of a distraction force, the device comprising attachment members securable to separate bone segments and moveable in relation to each other to generate a distraction force, a power source for powering relative movement of the attachment members, and wherein the entire device, including the attachment members and power source, is dimensioned for implantation entirely subdermally in the body of a patient. | 07-30-2009 |
20090198240 | Femoral Tibial Spreader with Tensor Measurement - A femoral tibial spreader ( | 08-06-2009 |
20090198241 | SPINE DISTRACTION TOOLS AND METHODS OF USE - An apparatus includes a measurement tool having a size configured to change when the measurement tool is moved between a first configuration and a second configuration. The measurement tool includes a first spacer member and a second spacer member configured to move relative to each other when the tool is moved between the first and second configurations. The measurement tool has a distal actuator having a first actuator surface matingly and movably coupled to the first spacer member, and a second actuator surface matingly and movably coupled to the second spacer member. A proximal actuator is coupled to a proximal end portion of the elongate member and is configured to rotate about an axis substantially parallel to at least a portion of a center line of an elongate member to move the distal actuator. The distal actuator is configured to move the first spacer member relative to the second spacer. | 08-06-2009 |
20090209965 | SPINAL DECOMPRESSION SYSTEM - A device useful for spinous process decompression includes a pair of prongs which can be moved apart from each other by rotation of a gear which mates with a threaded rod. | 08-20-2009 |
20090216237 | Instrument for Moving a Vertebra - The invention concerns an instrument for moving a vertebra ( | 08-27-2009 |
20090234361 | Tissue Distraction Device - An apparatus and method is provided for distracting, in a given direction, and supporting opposed endplates of a vertebral body. A plurality of wafers are consecutively inserted within the vertebral body between the two endplates to create a column of wafers. The column of wafers is oriented between the endplates so as to expand in the given direction as the wafers are consecutively added to the column. | 09-17-2009 |
20090234362 | OFFSET OPPOSING ARM SPINAL IMPLANT DISTRACTOR/INSERTER - Provided herein is a vertebral distractor-inserter comprising a pair of arms comprising a first arm having a proximal end and a distal end and a second arm having a proximal end and a distal end, wherein the distal end of the first opposing arm is laterally offset from the distal end of a second arm thereby comprising a pair of laterally offset opposing arms, a driving rod extending between the pair of laterally offset opposing arms, and a drive mechanism in mechanical communication with the driving rod. A vertebral distractor-inserter comprising a pair of opposing arms, a housing in mechanical communication with the arms and rotatable about an axis extending between the arms, and a driving rod extending through at least a portion of the housing and between the arms. A vertebral distractor-inserter adapted for single-handed use. A vertebral distractor-inserter having an implant depth adjustor. Methods for distracting adjacent vertebrae and inserting an implant using the device described herein. | 09-17-2009 |
20090248026 | BONE FIXATED, ARTICULATED JOINT LOAD CONTROL DEVICE - A load control device can be attached to bones on either side of an articulated joint in order to control the forces and loads experienced by the joint. The device comprises an apparatus for controlling the load on articular cartilage of a human or animal joint and includes: a first fixation assembly for attachment to a first bone; a second fixation assembly for attachment to a second bone; a link assembly coupled to the first fixation assembly by a first pivot and coupled to the second fixation assembly by a second pivot, the first and second fixation assembly thereby each being angularly displaceable relative to the link assembly. The apparatus enables a clinician to effectively control the environment of cartilage in a joint during a treatment episode. | 10-01-2009 |
20090270870 | Dynamic distractor - A dynamic distractor is described for distracting an intervertebral space and determining a size of an artificial intervertebral disc to be implanted in the intervertebral space. | 10-29-2009 |
20090270871 | Impulsive percussion instruments for endplate preparation - A hand-held instrument, with a rotary power input to a camshaft, has cam and follower arrangement to provide a reciprocating shaft output. A cutter is provided on the output shaft. In one example, rotating cam percussion is transmitted to the cutter by engaging the cutter with the tissue to be cut, and pushing the instrument forward toward the cutter. In another example, rotating cam percussion is transmitted to the cutter by engaging the cutter with the tissue to be cut, and pulling the instrument back toward the user while maintaining engagement of the cutter with the tissue. In both examples, the cutter remains in idle condition until an axially directed load, forward in the one example, or backward on the other example, is placed on the cutter by moving the instrument forward or backward, respectively, while the camshaft is rotating. A distractor with frame is used to spread and maintain space between vertebral bodies, enabling entrance of the cutter. | 10-29-2009 |
20090275951 | Percutaneous discectomy and endplate preparation tool - Surgical instruments and surgical methods associated therewith are described. The surgical instruments described herein can be used for scraping or for other purposes such as measuring distances between two points in hard to reach locales. | 11-05-2009 |
20090275952 | DISTRACTOR - An instrument for distracting and/or compressing adjacent vertebrae is described. The instrument includes a yoke, a first blade movably mounted to the yoke, a second blade mounted to the yoke and an adjustment system. The yoke, the first blade and the second blade form a working channel for the instrument. The adjustment system of the instrument is configured to adjust a spacing between the first blade and the second blade by selectively moving the first blade relative to the second blade to distract and/or compress adjacent vertebrae when the first blade and the second blade have been secured to the adjacent vertebrae. The instrument may include a depth stop system that limits an insertion depth of an associated tool inserted into the working channel of the instrument. The adjustable depth stop system includes a releasable catch for securing a stop element of the associated tool. A position of the releasable catch relative to the working channel is adjustable to vary the insertion depth of the associated tool. | 11-05-2009 |
20090275953 | SPOOL INTERVERTEBRAL DISTRACTION DEVICE AND METHOD - An intervertebral disc space distraction system includes a spool core sized to be percutaneously positioned within a portion of a disc space between adjacent vertebral bodies, the spool core having a first diameter. The system further includes an elongate film removably attached to the spool core, wherein the elongate film can be wound around the spool core to increase the first diameter of the spool core. | 11-05-2009 |
20090306671 | Facet joint implants and delivery tools - A spinal joint distraction system is disclosed and may include a driver assembly with a tubular shaft, a pair of implant holder arms, an implant distractor, an internal actuator, and a distractor knob, the system also including a delivery device with a tubular shaft, a receiving assembly, and a pair of forks, where the delivery device is adapted for slidable insertion of the driver assembly, the system also including an implant, a chisel, and an injector. Several embodiments of an implant are disclosed as well a method of placing an implant. | 12-10-2009 |
20090306672 | Alif inserter/distractor - Apparatus and method for an instrument for use in an anterior lumbar interbody fusion (ALIF) procedure for distraction of adjacent vertebrae and insertion of a vertebral body replacement (VBR) implant. The instrument includes a hollow body having a proximal end and a distal end, an inserter shaft positioned within the body configured to removably engage a VBR implant near the distal end of the body, an actuatable handle coupled to the body, the handle being configured to engage the inserter shaft to advance the VBR implant in a distal direction during handle actuation, and a pair of opposed distraction arms removably coupled to the distal end of the body, the distraction arms having paddle tips configured to fit between adjacent vertebrae, the distraction arms being movable from a closed position to an open position during distal advancement of the VBR implant between the distraction arms. | 12-10-2009 |
20090312765 | Wedge Ramp Distractor for use in Implanting Artificial Intervertebral Discs - Instruments and methods for distracting an intervertebral space and inserting and impacting artificial intervertebral discs. A wedge distractor employing opposing ramps through which an inserter/impactor holding an artificial intervertebral disc is admitted, the passage of which through the distractor results in distraction of the intervertebral space simultaneous with insertion of the artificial intervertebral disc. A method of distracting an intervertebral space comprising the steps of inserting a distractor having opposing ramped surfaces into an intervertebral space and inserting an inserter/impactor holding an artificial intervertebral disc between the opposing ramped surfaces of the distractor to insert/impact the artificial intervertebral disc in the intervertebral space. A system for distracting an intervertebral space employing a wedge distractor, inserter/impactor and artificial intervertebral implant. | 12-17-2009 |
20100004654 | ACCESS AND TISSUE MODIFICATION SYSTEMS AND METHODS - Described herein are methods and systems for precisely placing and/or manipulating devices within the body by first positioning a guidewire or pullwire through the body from a first location, around a curved pathway, and out of the body through a second location, so that the distal and proximal ends of the guidewire extend from the body, then pulling a device into position using the guidewire. The device to be positioned within the body is coupled to the proximal end of the guidewire, and the device is pulled into the body by pulling on the distal end of the guidewire that extends from the body. The device may be bimanually manipulated by pulling the guidewire distally, and an attachment to the device that extends proximally, allowing control of both the proximal and the distal ends. In this manner devices (and particularly implants such as innerspinous distracters, stimulating leads, and disc slings) may be positioned and/or manipulated within the body. Devices to modify tissue may also be positioned or manipulated so that a target tissue within the body is modified. | 01-07-2010 |
20100010494 | SPINAL MEASURING DEVICE AND DISTRACTOR - A method and device for determining an optimal size of an intervertebral implant to be inserted within an intervertebral space between two vertebrae in a patient, comprising inserting a distractor into the intervertebral space. The vertebral endplate depth is measured by moving a posterior rod on the distractor longitudinally to a position at the posterior margin of the vertebral endplate and moving an anterior rod on the distractor to a position at the anterior margin of the vertebral endplate. The force applied during distraction is measured using at least one transducer mounted on the distractor and the intervertebral space is distracted by rotating the posterior and anterior rods on the distractor until the measured force reaches a predetermined value. The posterior height of the intervertebral space is measured based on the amount that the posterior rod is rotated and the anterior height of the intervertebral space is measured based on the amount that the anterior rod is rotated. The intervertebral angle is measured based on the angular orientation of two pivotally connected handles on the distractor. | 01-14-2010 |
20100049204 | INTRACORPOREAL ELONGATION DEVICE WITH A PERMANENT MAGNET - A first part ( | 02-25-2010 |
20100069912 | CERVICAL DISTRACTION/IMPLANT DELIVERY DEVICE - Systems for distracting a facet joint and positioning a permanent implant in the joint are disclosed. The implants serve to retain a distracted position of the facet joint which is achieved with positioning of the leading end of a distraction tool in the facet joint and then distracting or enlarging the joint a desired amount. The permanent implant could be part of the distraction mechanism which can be separated from the delivery tool once the joint has been distracted or an auxiliary implant may be positioned before the distraction mechanism is removed from the distracted joint. The permanent implants can be solid, mechanical devices that may have fixation means thereon to hold them in place or injected fluids such as hydrogels or fluids confined within balloons. | 03-18-2010 |
20100076444 | Bone distraction device having a quick release disengagement mechanism - A bone distraction device having a ratchet and pawl mechanism such that incremental rotation is allowed in one direction and prevented in the other, and further having a quick release mechanism such that the ratchet and pawl mechanism can be released to allow free rotation in both directions. | 03-25-2010 |
20100087825 | Advanced 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. | 04-08-2010 |
20100087826 | Tissue Distraction Device - An apparatus and method for distracting, in a given direction, and supporting two tissue surfaces is provided. A plurality of wafers are consecutively inserted using a wafer insertion apparatus between the two tissue surfaces to create a column of wafers. A detachable wafer assembly is provided that includes a base wafer initially associated with a track assembly of a wafer insertion apparatus. The base wafer is dislodged from the track assembly so that the base wafer is left within the distraction site as the track assembly is removed. A top cap wafer is provided that is situated at the top of the wafer stack, in which the top cap wafer is larger than the remaining wafers to form a gap surrounding the stack to receive biologic material. | 04-08-2010 |
20100094302 | SPINAL DISTRACTION SYSTEM - A spinal distraction system includes an adjustable spinal distraction rod having first and second members, the adjustable spinal distraction rod configured for non-invasive elongation of the first and second members. The system includes an anchor rod configured for mounting to a bone of a subject, and a socket coupled to the anchor rod, the socket having a lumen dimensioned to receive an end of a first member, wherein the end of the first member is configured for telescopic sliding movement within the lumen of the socket and wherein the second member is configured for mounting to a second bone of a subject. | 04-15-2010 |
20100094303 | SPINAL DISTRACTION SYSTEM - A spinal distraction system, according to one aspect, includes an adjustable spinal distraction rod comprising first and second members, the adjustable spinal distraction rod configured for non-invasive elongation of the first and second members. The system includes an anchor rod configured for mounting to a bone of a subject, the anchor rod having one or more spring-biased tabs disposed at one end thereof, and a connector having first end and a second end, the first end having a receiving cup configured for detachable mounting on the anchor rod, wherein the one or more spring-biased tabs are configured to engage with an inner surface of the receiving cup, the connector having a second end operatively coupled to an end of a first member and wherein the second member is configured for mounting to a second bone of a subject. | 04-15-2010 |
20100094304 | SPINAL DISTRACTION SYSTEM - A spinal distraction system, according to one aspect, includes an adjustable spinal distraction rod comprising first and second members, the adjustable spinal distraction rod configured for non-invasive elongation of the first and second members, the first member having a splined tip. The system further includes a coupler operatively fixed relative to a first bone of a subject, the coupler comprising a tubular portion having a recess therein, wherein an inner surface of the tubular portion comprises one or more longitudinally oriented channels configured to mate with the splined tip of the first member and prevent relative rotation of the first member relative to the second member, and wherein the second member is configured for mounting to a second bone of a subject. | 04-15-2010 |
20100094305 | SPINAL DISTRACTION SYSTEM - A spinal distraction system, according to one embodiment, includes an adjustable spinal distraction rod comprising first and second members, the adjustable spinal distraction rod configured for non-invasive elongation of the first and second members. The system includes an anchor rod configured for mounting to a bone of a subject, the anchor rod comprising a threaded portion and a ball disposed at one end thereof and a nut disposed on the threaded portion of the anchor rod the nut having a first contact surface. The system further includes a locking joint having a cup portion configured to receive an end of the first member, the cup portion comprising a second contact surface, wherein tightening of the nut binds the first and second contact surfaces to thereby lock the joint and prevent articulation and wherein the second member is configured for mounting to a second bone of a subject. | 04-15-2010 |
20100094306 | SPINAL DISTRACTION SYSTEM - A spinal distraction system, according to one embodiment, includes an adjustable spinal distraction rod comprising first and second members, the adjustable spinal distraction rod configured for non-invasive elongation of the first and second members. The system includes an anchor rod configured for mounting to a bone of a subject, and a housing coupled to the anchor rod, the housing comprising a cavity and a plate having first and second surface. A strain gauge is mounted on a first surface of the plate. A coupling element is configured to mount on a second surface of the plate, the coupling element comprising a portion configured to receive an end of the first member. In the system, the second member is configured for mounting to a second bone of a subject. | 04-15-2010 |
20100114103 | APPARATUS AND METHODS FOR ALTERATION OF ANATOMICAL FEATURES - Systems and methods are disclosed for manipulating an anatomical feature within the body of the patient. An implant such as an internal jackscrew is implanted at the anatomical and has first and second attachment points that secure to spaced-apart locations on the anatomical feature. An internal motor is coupled to the jackscrew, and is configured to drive motion of the jackscrew to manipulate the anatomical feature. The system further includes an external driver that is inductively coupled to the internal motor to manipulate the anatomical feature. | 05-06-2010 |
20100145348 | SPINAL DISTRACTOR, COMPRESSOR, AND ROD ENGAGING SYSTEM AND METHOD - Apparatus and methods for distracting or compressing distance between a first and second honey structure and for engaging a connecting element. | 06-10-2010 |
20100145349 | Systems and Methods for Compressing and Distracting Vertebrae of the Spinal Column - Spinal surgical systems include a compressor mountable to a first vertebra and positionable relative to a fulcrum mountable to a second vertebra. The compressor and fulcrum are manipulated relative to one another to compress the first and second vertebrae. The systems further include a distractor mountable to a first vertebra and positionable relative to a fulcrum mountable to a second vertebra. The distractor and fulcrum are manipulated relative to one another to distract the first and second vertebrae. | 06-10-2010 |
20100160920 | Apparatus for Intraoral Distraction Osteotomy to Widen the Upper Jaw - The present invention provides an improved orthopaedic system for the modification of the distance between the contralateral maxillary segments or halves. In a preferred embodiment, the system includes two metal bone plates fixed on the bony palatal shelves, with slotted extensions which opposite internal walls have concave indents into which disk-shaped wings of interchangeable distraction modules fit. The in the palatal plane concave female indent and the convex male wing prevent distraction module dislocation in case of oblique placement in the axial plane. In the frontal plane, the male wings are straight. | 06-24-2010 |
20100179558 | Apparatus And Methods For Inter-Operative Verification Of Appropriate Spinal Prosthesis Size And Placement - A distractor and measuring device includes a first handle operatively connected to a first paddle and a second handle operatively connected to a second paddle. The first and second handles are pivotally connected to one another such that movement of the handles relative to one another causes the paddles to move relative to each other. At least one transducer is positioned on at least one of the first and second handles for measuring an amount of force applied during distraction. A measurement rod is pivotally connected to the device and is movable in a longitudinal direction relative to the first and second paddles. A potentiometer is operatively connected to the measurement rod to measure the angular orientation of the measurement rod. | 07-15-2010 |
20100198225 | SHAPE MEMORY SPINE JACK - The present invention relates to a method of repairing vertebral bodies and of controlling vertebral height augmentation. In particular, the invention relates to a spine jack and more particularly to a spine jack comprising shape memory material for use in the method of repair. | 08-05-2010 |
20100198226 | Method and instrumentation for posterior interbody fusion - A method and instrumentation for spinal interbody fusion is disclosed. The instruments and methods are particularly adapted for interbody fusion from a posterior approach to the spine. One instrument is a retractor having a lockable pivotally mounted handle. Another instrument is a template for straddling the dura. A modular distractor is also provided and preferably includes a tapered shaft with a visualization window disposed therein. Yet another instrument is a depth gauge to verify bone opening depth and dimension, preferably including a radiopaque portion. A method contemplates the use of these instruments to prepare a disc space to receive an implant. | 08-05-2010 |
20100217271 | SPINAL DISTRACTION SYSTEM - A spinal distraction system includes a distraction rod having a first end and a second end, the first end being configured for affixation to a subject's spine at a first location, the distraction rod having a second end containing a recess having a threaded portion disposed therein. The system further includes an adjustable portion configured for affixation relative to the subject's spine at a second location remote from the first location, the adjustable portion comprising a housing containing a magnetic assembly, the magnetic assembly affixed at one end thereof to a lead screw, the lead screw operatively coupled to the threaded portion. A locking pin may secure the lead screw to the magnetic assembly. An o-ring gland disposed on the end of the housing may form a dynamic seal with the distraction rod. | 08-26-2010 |
20100241127 | Methods and instrumentation for distraction of a disc space - Methods and instrumentation for surgical procedures relating to preparation of vertebral bodies and a disc space for insertion of spinal implants is disclosed. One instrument is a shim having a blade and a shaft having a first end connected with the blade. The blade is inserted into a distracted disc space to maintain distraction during subsequent procedures. Another instrument is a driver for driving the blade of the shim into the distracted disc space. Various methods contemplate the use of these instruments to maintain disc space distraction during disc space preparation for receiving an implant. | 09-23-2010 |
20100241128 | SPINOUS PROCESS RETRACTOR - A specialized spinous process retractor surgical instrument comprises a pair of opposing proximal handles coupled to a pair of opposing distal jaws through a joint such that when the handles are compressed the jaws spread apart, the handles defining a plane when viewed from the side. The jaws curve downwardly from the plane distally from the joint, then curve back upwardly before terminating in end portions configured for spreading. The instrument defining a centerline when viewed from above, with the jaws distally from the joint diverging outwardly from the centerline, then curving back toward the centerline before terminating in the end portions. The end portions may include opposing, outwardly facing textured or roughened bone-contacting surfaces. The end portions of the jaws when viewed from the sides may define a plane that is substantially parallel to the plane defined by the handles. | 09-23-2010 |
20100249790 | SYSTEM AND METHOD FOR SOFT TISSUE TENSIONING IN EXTENSION AND FLEXION - At least one embodiment is directed to a dynamic distractor ( | 09-30-2010 |
20100249791 | SYSTEM AND METHOD FOR ORTHOPEDIC MEASUREMENT AND ALIGNMENT - At least one embodiment is directed to a system for distracting bones of a muscular-skeletal system. The dynamic distractor ( | 09-30-2010 |
20100249792 | Instruments and techniques for separating bony structures - Instruments and techniques separate or spread adjacent bony structures by inserting a distal spreader assembly into the space between the adjacent bony structures and actuating the spreading members with a proximal actuator assembly. | 09-30-2010 |
20100274252 | VERTEBRAL BODY REDUCTION INSTRUMENT AND METHODS RELATED THERETO - Featured is a reduction instrument being configured and arranged to allow correction of vertebral translation and applying distraction across a segment in an independent fashion. Such a reduction instrument embodies one or more identical modules that are configured as needed for correcting the deformity. In more particular embodiments, each of the one or more modules has two degrees of freedom (DOF) with uncoupled orthogonal translations. Such a reduction instrument allows the reorientation of the vertebral segment as needed via uncoupled orthogonal translations. Such a reduction instrument also is usable in combination with a plurality of vertebral anchors, such vertebral anchors being any such vertebral anchors as are know to those skilled in the art (e.g., conventional spinal pedicle screw instrumentation) or hereinafter developed so as to form a spinal implant system. Also featured are treatment methods utilizing such a reduction instrument. | 10-28-2010 |
20100280519 | IMPLANTABLE DISTRACTOR WHOSE LENGTH CAN BE MODIFIED WITHOUT REOPERATION AND WHICH HAS A J-SHAPE - This distraction device comprises a rod ( | 11-04-2010 |
20100286701 | DISTRACTION TOOL FOR DISTRACTING AN INTERSPINOUS SPACE - Distraction tools for distracting an interspinous space formed between spinous processes. The distraction tool may include first and second handles connected together at a pivot between first and second ends. First and second prongs may extend outward from the handles. The handles may move about the pivot between a first orientation with the first and second prongs in proximity to each other and a second orientation with the first and second prongs separated in a first direction. A third member may be connected to the first and second handles and include a third outwardly-extending prong. The third member may be positioned together with the first and second prongs to form a unified prong when the first and second handles are in the first orientation. The unified prong is sized and shaped for insertion into the interspinous space. The third prong may separate from the first and second prongs in a second direction when the first and second handles are in the second orientation. The prongs distract the interspinous space when the handles are in the second orientation. | 11-11-2010 |
20100331849 | SPINE DISTRACTION AND COMPRESSION INSTRUMENT - A surgical instrument for moving tissue, such as bone segments, and more specifically vertebrae of a spinal column, is provided. In particular, a spine compression and/or distraction instrument that can be used to reposition vertebrae is provided. Further, methods for using the surgical instrument to compress and/or distract vertebrae of a spinal column are also provided. | 12-30-2010 |
20110004217 | Apparatus and Method for Injecting Fluent Material at a Distracted Tissue Site - A system and method is provided for distracting opposite surfaces from the interior of a bone, such as a vertebral body. A working channel cannula provides a working channel through which an inserter and an injection cannula can simultaneously pass. The inserter transports a plurality of wafers into the interior of the bone to form a load-bearing stack bearing against the opposite surfaces. The injection cannula is used to inject a fluent material into and/or around the stack. In certain embodiments, the fluent material is a load-bearing or hardenable material, such as bone cement. In other embodiments, the fluent material can be a BMP, HAP, or other osteo-inductive, osteo-conductive, or pharmaceutical compositions. A syringe containing the fluent material is engaged to the injection cannula and is operable to inject the fluent material into the vertebral body under controlled pressure. | 01-06-2011 |
20110009870 | apparatus for spinal fusion - An apparatus and method for distracting, in a given direction, and supporting two tissue surfaces. An expandable implant includes a plurality of elements are consecutively inserted between the two tissue surfaces to create a column of elements. The column of elements is oriented between the tissue surfaces so as to expand in the given direction as the elements are consecutively added to the column. The expandable implant includes a constraint including a cooperative engagement structure between adjacent elements. | 01-13-2011 |
20110015638 | SPINAL-COLUMN DISTRACTOR - A spinal-column distractor ( | 01-20-2011 |
20110077655 | Vertebral Body Spool Device - A mandrel is inserted into the tissue to be distracted and a filament is repeatedly wrapped around the mandrel to make a spool. As the mandrel turns, the filament coils around the mandrel to create of spool of increasing diameter. This spool can be used as a distractor, tamp, or implant. A spool implant can be cemented to further stabilize the device in situ, such as a vertebral body. The filament deposition upon the mandrel is controlled by rotation and the volume creation is incremental. This makes the spool ideal for creating highly controlled distraction forces or insertion of bulking material. In some embodiments, fibers having a low glass transition temperature are used. | 03-31-2011 |
20110106094 | MANDIBULAR DISTRACTION SYSTEM AND METHOD OF USE - A mandibular distraction system and method for treating temporomandibular joint disorders by stretching and relaxing the periarticular muscles of the temporomandibular joint. The system includes a head immobilization device, a patient support device and a facial harness. The system also includes upper and lower mouth guards arranged to fit at least partially around the upper and lower teeth. The mouth guards are configured to operate with a chin strap, sliding assembly, and a displacement device. The displacement device may be actuated to apply force to the facial harness by applying pressure on the chin strap, which is converted by the mouth guards to apply a downward uniform pressure on the back of the jaw, stretching and relaxing the periarticular muscles of the temporomandibular joint. The method of the present invention generally provides steps for allowing distraction of the periarticular muscles to occur while the patient is in a passive, supine position with their mouth closed. | 05-05-2011 |
20110166579 | DEVICES AND METHODS FOR MINIMALLY INVASIVE ACCESS INTO A JOINT - Devices and methods are disclosed for providing access to a central compartment of a hip joint. The devices can access the central compartment by distracting all or a portion of the labrum. The labrum can be distracted by advancing a device underneath the bottom edge of the labrum, and using the device to further distract the labrum. Some devices can move underneath the labrum to provide a gap for other devices to access the central compartment. | 07-07-2011 |
20110166580 | Bone Compression And Distraction Apparatus - A bone compression and distraction apparatus comprising a body, a worm screw and left and right wire attachments. The body defines an elongated tubular member with a first end and a second end. The worm screw is positioned within the body. The worm screw has right hand threads extending from a central region to a first end thereof and left hand threads extending from the central region to a second end thereof. The right wire attachment threadedly engages the right hand threads. The left wire attachment threadedly engages the left hand threads. Rotation of the worm screw either directs the right and left wire attachments toward each other or away from each other. | 07-07-2011 |
20110184422 | METHODS AND DEVICES FOR INTERBODY SPINAL STABILIZATION - Methods and instruments for preparing a disc space and for forming interbody devices therein are provided. The instruments include distractors having enlargeable portions positionable in the disc space for distracting the disc space. The enlargeable portions can also provide form about or against which an interbody device of a first material is placed. A second material may be placed in the disc space in the space previously occupied by the distractors. | 07-28-2011 |
20110190774 | METHODS AND APPARATUS FOR PERFORMING AN ARTHROSCOPIC PROCEDURE USING SURGICAL NAVIGATION - The method for performing an arthroscopic procedure on a joint using surgical navigation. A 3-D virtual model of the anatomy is created from a scan of the anatomy. The 3-D virtual model is then used to reproduce motion of the joint and plan the arthroscopic procedure. The 3-D virtual model is placed into registration with the real-world anatomy, so that a virtual image generated by the 3-D virtual model may be placed into registration with an arthroscopic image of the real-world anatomy. Preferably, arthroscopic registration markers, positioned prior to scanning, are used to place the 3-D virtual model in registration with the real-world anatomy. The arthroscopic registration markers may be placed either percutaneously or arthroscopically. At the conclusion of the procedure, the registration markers may be left in place, removed arthroscopically or allowed to biodegrade. | 08-04-2011 |
20110196378 | METHOD AND APPARATUS FOR DISTRACTING A JOINT, INCLUDING THE PROVISION AND USE OF A NOVEL FLUID JOINT SPACER - A fluid joint spacer comprising a body having means for receiving a pressurized fluid from an external source and applying that pressurized fluid against a joint element so as to create a flowing fluid bearing within the joint. | 08-11-2011 |
20110245836 | MINIMAL INCISION MAXIMAL ACCESS MIS SPINE INSTRUMENTATION AND METHOD - A minimal incision maximal access system allows for maximum desirable work space exposure within the incision along with maximum access to the operative field utilizing a minimum incision as small as the width of the working tube. Instead of multiple insertions of dilating tubes the design is a streamlined single entry device to avoid repetitive skin surface entry. The system offers the capability to expand to optimum exposure size for the surgery utilizing retractors depending from a bi-hinged frame having internal or external controls to control the angle and separation of the retractors. Interchangeable retractor blades can be attached to the frame. Both retractor blades are independently controlled as to displacement and angle. | 10-06-2011 |
20110251619 | HIP JOINT ACCESS USING A CIRCUMFERENTIAL WIRE AND BALLOON - The devices disclosed herein can provide access to the central compartment by accessing the medial-inferior side of the acetabulum, where a gap in the labrum exists. A distending device access the peripheral compartment of a hip joint. The device can then be circumferentially looped around the femoral head, and further tightened. Tightening the circumferential device can cause a balloon of the device to be placed within the gap. The balloon may then be inflated within the gap to distend the femoral head from the acetabulum. | 10-13-2011 |
20110257655 | INSTRUMENT FOR MEASURING THE DISTRACTION PRESSURE BETWEEN VERTEBRAL BODIES - An instrument for measuring the distraction pressure between vertebral bodies comprises a control device ( | 10-20-2011 |
20110270257 | Spondylolisthesis correction apparatus and method - An apparatus and method are provided that allow for the realignment and stabilization of adjacent vertebrae. An implant of this invention both repositions adjacent vertebrae and remains in situ to maintain the new position. The implant has two halves which are interlocked such that they can slide horizontally with respect to each other. Movement of the implant halves and their respective positions are controlled by set screw within the implant. The implant includes radial anchors which fit into alignment slots made in the misaligned vertebra by the disclosed method. The set screws are used to advance the halves of the implant which in turn move the misaligned vertebrae back into correct positions. The correct position of the vertebrae is locked in place through a nut and a plate. | 11-03-2011 |
20110270258 | METHOD FOR SCULPTING THE SURFACE OF A JOINT - Methods and devices for sculpting bones, particularly in preparation for implanting prosthetic devices to replace articulating bone joint surfaces. Improved bone removal devices including burr mills driven by gears and loop drives are provided. Reciprocating cutters and belt cutters are also provided. Some devices have either integral or removable expandable portions to vary the force and bone resection depth. Devices can have irrigation ports and plenums to remove bone fragments. Some cutters are dual cutters, adapted to remove bone in two or more regions, such as the knee joint, simultaneously. | 11-03-2011 |
20120022540 | APPARATUS AND METHODS FOR USE OF EXPANDABLE MEMBERS IN SURGICAL APPLICATIONS - In some embodiments, an apparatus includes an elongated member, an expandable member coupled to the elongated member, and an outer sheath. The outer sheath, which can be constructed from a different material than the expandable member, is disposed about the expandable member such that an outer surface of the expandable member is in discontinuous contact with an inner surface of the outer sheath. The expandable member and the outer sheath are configured to cooperatively displace a bone structure when moving between a collapsed configuration and an expanded configuration. | 01-26-2012 |
20120095474 | Spinal Surgery Distraction with an Integrated Retractor - A spinal surgery retractor with a slotted keyway for integrating a keyed spinal distractor. This retractor and distractor combination slide together to displace a portion of the intervertebral disk space to restore or maintain intervertebral spacing and facilitate retraction of surrounding soft tissues while disk space surgery is performed. The distractor head and mating portion of the retractors have matching profiles that enable the retractor to maintain distraction of the vertebra after removal of the distractor portion of the tool, permitting access to increase at the operating site. The retractor has convex curved surfaces that interface with a majority of retracted soft tissues during progression of the retraction process, which enhance retractor safety. In addition, the retractor portion of the tool has a proximally located section that is laterally flexible, which provides further progression in the retraction process while increasing relative access to the operating site. | 04-19-2012 |
20120123424 | SPINAL IMPLANT DISTRACTOR/INSERTER - A vertebral distractor-inserter comprising a housing, a pair of opposing arms in mechanical communication with the housing, a driving rod extending through at least a portion of the housing and between the arms, wherein the driving rod comprises an axis and a surface with a plurality of angled ratchet teeth on at least a portion of the surface, and a ratchet drive mechanism in mechanical communication with the driving rod. A vertebral distractor-inserter comprising a pair of opposing arms, a housing in mechanical communication with the arms and rotatable about an axis extending between the arms, and a driving rod extending through at least a portion of the housing and between the arms. A vertebral distractor-inserter adapted for single-handed use. A vertebral distractor-inserter having an implant depth adjustor. Methods for distracting adjacent vertebrae and inserting an implant using the devices described herein. | 05-17-2012 |
20120123425 | Joint Manipulator Device - The present invention relates to a joint manipulator for rehabilitation of an appendage that has undergone joint replacement surgery or can otherwise benefit from repetitious movement. In one exemplary embodiment, the present invention provides a joint manipulator device for engagement and manipulation of an appendage of an individual. The joint manipulator includes an appendage coupler defining an appendage aperture for receiving a toe of an individual. The joint manipulator further includes a handle disposed with respect to the appendage coupler for causing movement of the appendage coupler. The joint manipulator further includes one or more extension rods connecting the handle to the appendage coupler, wherein upon movement of the handle the appendage coupler moves the toe with respect to an associated foot. | 05-17-2012 |
20120123426 | SPINAL MEASURING DEVICE AND DISTRACTOR - A device for determining an optimal size of an intervertebral implant, comprising movable posterior and anterior rods, each rod operatively connected to a pair of posterior and anterior distracting members, respectively. Each pair is movable in opposing radial directions in response to longitudinal rotation of the posterior and anterior rods, and has marks corresponding to the distance the distracting members have moved for the purpose of measuring posterior and anterior disc height. A position indicator allows measurement of longitudinal distance between the longitudinally movable posterior and anterior rods. The device further comprises load sensor plates movable in response to movement of the distracting members, first and second handles pivotally connected to the load sensor plates, a protractor disposed relative to the handles, allowing measurement of an angle between the first and second handles, and a transducer for measuring force applied during distraction. | 05-17-2012 |
20120143201 | Devices 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. | 06-07-2012 |
20120172883 | REMOTE-CONTROLLED INTERNAL HYDRAULIC OSSEOUS DISTRACTOR - The present invention relates to a hydraulic, electric, remotely controlled device, which will act as internal distractor to correct spinal deformitites, and/or to lengthen long bones in humans. The object of the present invention is to provide an internal distractor that is totally different from those currently in existence on the market and one which successfully solves the problems and improves the results achieved with distracters and devices currently used for this purpose, but which have limited results, and many problems inherent in current devices. This object will be achieved by virtue of the novel design thereof and the way in which the distractor operates, which is likewise novel, and because the distractor has features that combine the advantages of various devices and techniques in existence on the market for the same purposes. | 07-05-2012 |
20120191100 | DISTRACTOR DEVICE FOR JOINTS - A distractor device ( | 07-26-2012 |
20120226284 | AUTOMATIC LOCKING CASPER DISTRACTOR - A vertebral distractor system includes a crossbar and a first distractor arm having a first end portion coupled to the crossbar and a second end portion with a first bore configured to axially receive a first coupling portion of a first pin. A second distractor arm includes a third end portion coupled to the crossbar and a fourth end portion with a second bore configured to receive a second coupling portion of a second pin. A first pin locking mechanism is configured to couple the first coupling portion and the first distractor arm within the first bore such that when the first coupling portion and the first distractor arm are coupled, movement of the first pin outwardly of the first bore is not allowed. | 09-06-2012 |
20120232559 | NON-INVASIVE ADJUSTABLE DISTRACTION SYSTEM - A spinal distraction system includes a distraction rod having a first end and a second end, the first end being configured for affixation to a subject's spine at a first location, the distraction rod having a second end containing a recess having a threaded portion disposed therein. The system further includes an adjustable portion configured for affixation relative to the subject's spine at a second location remote from the first location, the adjustable portion comprising a housing containing a magnetic assembly, the magnetic assembly affixed at one end thereof to a lead screw, the lead screw operatively coupled to the threaded portion. A locking pin may secure the lead screw to the magnetic assembly. An o-ring gland disposed on the end of the housing may form a dynamic seal with the distraction rod. | 09-13-2012 |
20120239046 | METHOD AND APPARATUS FOR DISTRACTING A JOINT - A joint-spacing balloon catheter comprising:
| 09-20-2012 |
20120259343 | LOW PROFILE DISTRACTOR APPARATUSES - Embodiments of low profile distractor apparatuses are disclosed. The distractor apparatuses generally comprise a mounting body, a tensioning mechanism coupled to the mounting body and a distractor arm coupled to the tensioning mechanism and pivotally coupled to the mounting body for rotation relative to the mounting body. The tensioning axis of the tensioning mechanism is non-coaxial with an effector axis of the distractor arm and a distraction force applied with the distractor arm is translated to the effector axis. This enables the distractor apparatus to be positioned relative to a patient such that the tensioning mechanism is offset from the long axis of the limb of the patient thereby facilitating improved access to the distal portions of the limb. | 10-11-2012 |
20120303034 | METHOD AND APPARATUS FOR PERFORMING SPINAL SURGERY - Implants, instruments, and methods for performing surgical procedures on the spine, including one or more of creating an operative corridor to the spine, delivering implants to the spine, fusing one or more segments of the spine, and fixing one or more segments of the spine. A method for attaching a fixation system to the spine of a patient, the fixation system including at least two bone anchors and a spinal rod linking the at least two bone anchors. | 11-29-2012 |
20120310249 | Assembly With Offset Allowing Vertebral Distraction by Axial Rotation of a Concentric Member - An assembly for distraction of spinal vertebrae and which can optionally accommodate retraction blades. The assembly includes a pair of pins each having a first end adapted for vertebral bone engagement and a second end. A pair of sleeves respectively and concentrically engage said pins. A frame includes respective openings which receive the pins and a first end of each said sleeves. The first end of each said sleeve including a portion offset relative to a longitudinal axis of said sleeve such that when the first end of each said pins is anchored in bone, axial rotation of each said sleeves enables said first end of each said pins to move between a first position in which said vertebral bones are not distracted and a second position in which said vertebral bones are distracted. | 12-06-2012 |
20120316568 | SYSTEM FOR DISTRACTING OPPOSING VERTEBRAL BODIES OF A SPINE - A system and method is provided for distracting opposite surfaces from the interior of a bone, such as a vertebral body. A working channel cannula provides a working channel through which an inserter and an injection cannula can simultaneously pass. The inserter transports a plurality of wafers into the interior of the bone to form a load-bearing stack bearing against the opposite surfaces. The injection cannula is used to inject a fluent material into and/or around the stack. In certain embodiments, the fluent material is a load-bearing or hardenable material, such as bone cement. In other embodiments, the fluent material can be a BMP, HAP, or other osteo-inductive, osteo-conductive, or pharmaceutical compositions. A syringe containing the fluent material is engaged to the injection cannula and is operable to inject the fluent material into the vertebral body under controlled pressure. | 12-13-2012 |
20130072939 | Compessor Distractor Tool - A combined compressor and distractor tool is provided that includes a mechanism capable of switching the mode of operation of the tool from a compression tool to a distraction tool. The tool includes engagement tips and handles at opposed ends of the tool that are pivotally connected to a central shaft. A saddle is slidably mounted on the shaft between and pivotally connected to the handles. When the saddle is engaged with the shaft in a before center position, squeezing the handles results the movement of the shaft forwardly to operate the engagement tips as a distractor. However, when the saddle is engaged with the shaft in a past, or over center position, squeezing the handles results in the movement of the shaft rearwardly to operate the engagement tips as a compressor. | 03-21-2013 |
20130085501 | SPACER 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. | 04-04-2013 |
20130110113 | TRANSLATIONAL INSTRUMENTATION FOR SPONDYLOLISTHESIS AND SCOLIOSIS REDUCTION | 05-02-2013 |
20130138112 | DISTRACTOR - A surgical distractor comprising a base plate ( | 05-30-2013 |
20130190769 | METHOD 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. | 07-25-2013 |
20130231671 | METHODS AND APPARATUS FOR JOINT DISTRACTION - A method of treating a patient's joint having opposing joint surfaces includes providing an elongate member having a proximal end, a distal end and an expandable member near the distal end. The expandable member is positioned in the joint between the joint surfaces and expanded so as to separate the joint surfaces away from one another into a distracted position. The joint is manipulated while in the distracted position so that the joint is distracted and in flexion. A diagnostic or therapeutic procedure is then performed on the joint while maintaining the joint in the flexed and distracted position. | 09-05-2013 |
20130237990 | LATERAL ACCESS SYSTEM AND METHOD OF USE - A surgical access device including a frame, first and second supports, and first and second retractor blades releasably coupled with the first and second supports, respectively. The frame has first and second arms. The first support is releasably coupled with the first and second arms. The second support is slidably mounted on the first and second arms. The second support is movable between a first position with the retractor blades in close cooperative position and a spaced apart position with respect to the first support. The first and second retractor blades each have a distal end portion configured and adapted to engage a vertebral body. In one method of use, the retractor is inserted through an incision in first orientation with the blades in close approximation and rotated approximately 90°, before spreading the retractor blades to retract tissue. | 09-12-2013 |
20130261631 | ORTHOPAEDIC SURGICAL INSTRUMENT FOR KNEE SURGERY - An orthopedic surgical instrument for use in knee surgeries includes an elongated body, a pair of output shafts, and a user control. A first output shaft extends out from a first side of the body along a first output axis substantially perpendicular to a longitudinal axis of the elongated body. A second output shaft also extends out from the first side of the elongated body along a second output axis substantially perpendicular to the longitudinal axis of the elongated body. The user control is coupled to the elongated body near a first end and the first and second output shafts are situated near the second end of the elongated body. Each of the first output shaft and the second output shaft are configured to turn independent of one another in response to operation of the user control. Various joint distractors for use with the orthopedic surgical instrument are also disclosed. | 10-03-2013 |
20130267959 | MODULAR APPARATUS AND METHOD FOR SCULPTING THE SURFACE OF A JOINT - The present invention provides a method and device for restoring individual patient joint kinematics using minimally invasive surgical procedures. The instrumentation of the invention sculpts the articular surface of a first bone that normally articulates in a predetermined manner with a second bone. The instrumentation includes a bone sculpting tool and a mount for attaching the tool to the second bone. The implant system is comprised of implants that provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy. | 10-10-2013 |
20130310839 | CERVICAL DISTRACTION/IMPLANT DELIVERY DEVICE - Systems for distracting a facet joint and positioning a permanent implant in the joint are disclosed. The implants serve to retain a distracted position of the facet joint which is achieved with positioning of the leading end of a distraction tool in the facet joint and then distracting or enlarging the joint a desired amount. The permanent implant could be part of the distraction mechanism which can be separated from the delivery tool once the joint has been distracted or an auxiliary implant may be positioned before the distraction mechanism is removed from the distracted joint. The permanent implants can be solid, mechanical devices that may have fixation means thereon to hold them in place or injected fluids such as hydrogels or fluids confined within balloons. | 11-21-2013 |
20130325022 | Laminoplasty System - A distractor device is disclosed that distracts and holds open an intralaminar space. The distractor device has a housing that includes a kickstand, an actuating bar that includes a foot, and an actuator that engages and drives the actuating bar, wherein the kickstand is configured to engage a first portion of a lamina on one side of the intralaminar space and the foot is configured to engage a second portion of the lamina on another side of the intralaminar space. | 12-05-2013 |
20140012269 | LOCKING DISTRACTOR WITH TWO-START DISTRACTION SCREW - Various exemplary embodiments relate to a distractor system including one or more of the following: a distraction screw comprising a double threaded distal portion and a nonthreaded locking feature near a proximal end of the distraction screw; a crossbar; a first arm coupled to the crossbar; a second arm coupled to the crossbar and having an interior bore sized to receive at least a portion of the distraction screw; and a lock having a nonthreaded aperture sized to receive at least a portion of the distraction screw therethrough, wherein the lock is configurable in a first position and a second position, when configured in the first position the lock engages the locking feature to substantially inhibit axial movement of the distraction screw within the interior bore, and when configured in the second position the lock substantially permits axial movement of the distraction screw within the interior bore. | 01-09-2014 |
20140012270 | JOINT STABILIZING INSTRUMENT AND METHOD OF USE - A joint spacer having a body and a series of extensions projecting therefrom is disclosed. A first of the series of extensions may include a curved section for housing a portion of a joint therein (e.g., the intercondylar notch of a knee), and a second and third of the extensions may be configured to abut an opposing portion of the joint. Once inserted, the joint spacer may maintain the spacing between, and the stabilization of, the joint during surgery. A fourth extension may be included with the spacer in which the extension may interact with an insertion-removal instrument. The insertion-removal instrument may include one end having an insertion geometry for use in inserting the spacer into the joint, and an opposing end having a removal geometry for removing the spacer. Related methods for inserting the joint spacer and various alternate joint distraction devices are also disclosed. | 01-09-2014 |
20140031828 | SURGICAL TOOL - A surgical tool includes a pair of pivotally coupled operating handles and working distal ends connected thereto configured to engage bone fixation elements. A toothed ratchet member is arranged across the handles and includes a first and second tooth rack. The first tooth rack includes a plurality of teeth angled in a first direction and the second tooth rack includes a plurality of teeth angled in a second direction. The ratchet member is rotatable with respect to the handles to selectively present the first or second tooth rack to a pawl disposed on one of the handles. The handles are operable for closing or spreading movement via selective engagement of the pawl with the first or second tooth rack, which correspondingly closes or spreads the working distal ends. A method for operating the tool is also disclosed. | 01-30-2014 |
20140046333 | EXPANSION MEMBER FOR INSERTION INTO A BODY TISSUE SPACE - 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. | 02-13-2014 |
20140066939 | METHOD AND APPARATUS FOR DISTRACTING A JOINT - A method for creating space in a joint formed at the convergence of two bones, comprising applying force to a body part so as to separate the two bones from one another by a distance which is greater than the distance that they are normally separated from one another when the joint is in a healthy state, whereby to distract the joint and create an intrajoint space; inserting an assembly of three balloons into the intrajoint space while the assembly is in a contracted condition; expanding the assembly of three balloons within the intrajoint space; and reducing the force applied to the body part so that the joint is supported on the assembly of three balloons, with the two bones remaining separated from one another by a distance which is greater than the distance that they are normally separated from one another when the joint is in a healthy state. | 03-06-2014 |
20140107656 | POP ON SPREADER SYSTEM - A post that is configured to be coupled to a head of a bone fixation element that is attached to a bone part can include a post body that is elongate along a first direction and defines a proximal end and a distal end that is spaced from the proximal end along the first direction. The post body can include an internal surface that defines a socket at the distal end. The socket can be configured to receive the head of the bone fixation element. The post can further include a locking member that is disposed within the socket such that when the socket receives the head of the bone fixation element the locking member couples the post body to the bone fixation element. The post body is polyaxially pivotable relative to the head when the post body is coupled to the bone fixation element. | 04-17-2014 |
20140135776 | DISC SPACE SIZING DEVICES AND METHODS FOR USING THE SAME - Devices and methods are provided for measuring and/or adjusting the distance between two opposing surfaces of a work space, such as two vertebral bodies separated by a disc space. A sizing device may include at least one distraction member, an actuator, and an actuator controller. The actuator controller is movable to move the actuator, with movement of the actuator changing the height dimension of the distraction member. The amount of movement of the actuator controller is generally linearly related to the change of the height dimension of the distraction member. The amount of expansion force applied by the distraction member is also generally linearly related to the amount of movement of the actuator controller. | 05-15-2014 |
20140148812 | PEDIATRIC INTERNAL MANDIBULAR DISTRACTOR - A pediatric mandibular distractor comprising a housing member elongating along a longitudinal axis, the housing member having at least one elongated slot elongating along at least a portion of the longitudinal axis and opening laterally through at least a side portion of the housing member; at least one fixed footplate attached to the housing member; a drive rod; and at least one moveable footplate engageable with the drive rod through the elongated slot by a connector. Wherein, when the fixed and moveable footplates are attached to the respective first and second bone surfaces, a bottom portion of the housing member is proximate to the first and second bone surfaces, and the side portion is further from the bone surfaces than the bottom portion in a direction transverse to the longitudinal axis. Methods of assembling and installing the exemplary pediatric mandibular distractor summarized above are also disclosed. | 05-29-2014 |
20140180297 | Advanced Intra-spinal Decompression Implant - A new intra-spinal decompression implant is introduced. One example for our presentation is a device with 2 or 3 pieces, with each piece with 2 clamps, symmetrically located on each side of each piece. The main piece has at least 2 screws which engage into 2 or more grooves in the side piece, to get attached to the side piece. The 3 | 06-26-2014 |
20140214043 | SURGICAL SPACER INSTRUMENT AND METHOD - A surgical instrument comprises a first member, an intermediate member and a second member. The intermediate member includes a first part and a second part. The second member includes a first arm and a second arm that extend from the first part. The arms are rotatable relative to the first part and engageable with the second part to axially translate the intermediate member for engagement with the first member to move the first member between a first orientation and a second orientation to space vertebral tissue. Systems and methods are disclosed. | 07-31-2014 |
20140214044 | PORTABLE ASSEMBLY AND METHOD FOR TREATING DESICCATED AND INJURED SPINAL DISCS - A portable assembly for treating desiccated and injured spinal discs includes a collapsible stretcher including a rectangular frame and a plurality of legs connected with the frame; a spinal stretching assembly connected with one end of the stretcher and an adjustable harness connected with the stretcher another end of the stretcher. The portable assembly operates to stretch and apply tension and decompression through the thoracic and lumbar regions of a patient lying on the stretcher. A method for treating desiccated and injured spinal discs includes the steps of administering at least one dietary supplement to the patient; administering at least one medication to the patient; hydrating the patient; positioning the patient on a stretcher in a prone position; stretching and applying tension and decompression through thoracic and lumbar regions of the patient via a spinal stretching assembly; and executing Chi breathing. | 07-31-2014 |
20140257311 | LOW COST INFLATABLE BONE TAMP - A surgical system and method for correction of a bone injury or disorder are provided. The device includes an elongated shaft that extends between a proximal end and a distal end and defining an interior lumen. A valve disposed with the proximal end of the elongated shaft and including a membrane. An inflatable structure is coupled to the distal end of the elongated shaft. A stylet is configured for insertion through the membrane and is removably disposed in the interior lumen of the elongated shaft such that the stylet provides strength to the elongated shaft. | 09-11-2014 |
20140257312 | VERTEBRAL MANIPULATION ASSEMBLY - A vertebral manipulation assembly includes a vertebral fixation assembly that is configured to be attached to a first vertebra and a second vertebra that is spaced from the first vertebra. The vertebral fixation assembly can include vertebral fixation members that attach to the first and second vertebrae, respectively. The vertebral manipulation assembly can further include a vertebral manipulation instrument that is configured to be coupled to the vertebral fixation assembly, and provide a first compression force that biases the first and second vertebral fixation members to move toward each other, and a second distraction force that biases the first and second vertebral fixation members to move away from each other. The vertebral manipulation instrument can include a coarse adjustment assembly that, when actuated, causes the first and second vertebral fixation members to incrementally move with respect to each other in first increments. The vertebral manipulation instrument can further include a fine adjustment assembly that, when actuated, allows for finer adjustment of the position of the first and second vertebral fixation members. | 09-11-2014 |
20140257313 | Methods and Apparatus for Insertion of Implant Material - Various surgical devices and methods for facilitating distraction of adjacent vertebrae and/or insertion of an intervertebral implant material therebetween are disclosed. | 09-11-2014 |
20140276868 | DEVICE FOR PERFORMING A SURGICAL PROCEDURE AND METHOD - A device includes an inflatable member extending between a first end and a second end. An inner surface of the inflatable member defines a first passageway in the first end and a chamber in the second end. An inner member is disposed in the first passageway and extends through the chamber. The inner member includes an inner surface defining a second passageway. A second end of the inflatable member is bonded to an outer surface of the inner member. A guide is member disposed in the second passageway. An outer member includes a first end having a projection including a threaded outer surface. The outer member includes an inner surface defining a third passageway having the inflatable member disposed therein. A cap includes a threaded inner surface that engages the threaded outer surface of the projection. Methods of use are provided. | 09-18-2014 |
20140276869 | SURGICAL PROBE INCORPORATING A DILATOR - A surgical probe and a method for forming and enlarging an access opening through a psoas muscle to provide for minimally invasive lateral approach for surgical access to a lumber intervertebral disc. A distal end portion of the probe is equipped with an electrode useful for confirming proper location of the probe and includes an inflatable dilator body for enlarging an access opening through tissue adjacent to a spinal column. The probe includes a cannula through which a K wire can be extended to anchor the probe to a patient. | 09-18-2014 |
20140288565 | VERTEBRAL 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. | 09-25-2014 |
20140296860 | Spinal Instrument For Measuring Load and Position Of Load - An orthopedic surgical spine measurement system comprises a first tool, a second tool, and a remote system. The first tool is a distractor having a plurality of load sensors for measuring load magnitude and position of load of a distracted region of the spine. The first tool and second tool also includes circuitry to measure a position and trajectory. The remote system receives data from the first tool and can display the parameter being measured and the position and trajectory of the first tool. A second tool holds a spine component. The remote system supports placement of the spine component by comparing the position and trajectory of the second tool to the path of the first tool. The remote system and second tool can provide visual, audible, or haptic feedback to support directing the second tool similarly to the first tool. | 10-02-2014 |
20140309646 | INFLATABLE, STEERABLE BALLOON FOR ELEVATION OF TISSUE WITHIN A BODY - An apparatus for elevating tissue within a body, including a tubular member having a proximal end and a distal end and a central axis defined therethrough, in which the tubular member comprises a first lumen and a second lumen, separately formed therein, a balloon secured to a region of the tubular member, in which a region of the tubular member is engagable with an injection mechanism, in which the engaged injection mechanism is engagable to be in communication with the first lumen of the tubular member, and in which the first lumen of the tubular member provides a path to an interior of the balloon. | 10-16-2014 |
20140324055 | METHOD AND APPARATUS FOR THE REMOVAL OF INTERVERTEBRAL DISCS - A method for the removal of an intervertebral disc or parts thereof to be treated that includes: inserting a first longitudinal bone anchor into a pedicle of a first vertebra; inserting a second longitudinal bone anchor into a pedicle of a second vertebra; bridging the first and second anchors using a bridging element including a first and second clamp; attaching adjustable extension arms to each of the two clamps; introducing a longitudinal guiding element into the intervertebral disc or the subchondral bone of one of the vertebral bodies adjacent of intervertebral disc; fixing a retractororthogonally on the longitudinal guiding element; connecting the free ends extension arms to the retractor; immobilizing the extension arms to obtain a rigid assembly; and using the retractor as an anatomically positioned platform for performing the removal of the intervertebral disc to be treated or parts thereof, and a kit and apparatus for performing the method. | 10-30-2014 |
20140324056 | APPARATUS AND METHOD FOR DISTRACTING THE HIP JOINT - Apparatus for distracting the hip joint of a patient, said apparatus comprising:
| 10-30-2014 |
20140330280 | INTERBODY DISTRACTOR - An interbody distractor and geometry trial instrument to measure a height and an angle for an associated implant includes a height handle and an expansion head coupled to the height handle that is adapted to be positioned in a vertebral body. A wedge sleeve is coupled to the expansion head, to control an angle of a first surface plate and a second surface plate of the expansion head when the wedge sleeve interacts with the expansion head. A wedge sleeve knob is adapted to drive the wedge sleeve linearly towards the vertebral body when the wedge sleeve knob is actuated. A height of the expansion head and an angle of the first and the second surface plate are measured to determine the height and the angle of the associated implant when the height handle and the wedge sleeve knob are actuated. | 11-06-2014 |
20140343559 | IMPLANT DELIVERY SYSTEMS, DEVICES, AND METHODS - Provided are modular implant delivery systems, devices and methods. In some embodiments, spinal implant delivery devices and methods are provided. An exemplary delivery device may include a head supported by a handle. The head may have an opening defining an insertion axis. The handle may have a handle axis that traverses the insertion axis. The head may also be configured to releaseably couple one or more blades. | 11-20-2014 |
20140358150 | SURGICAL DISTRACTION DEVICE WITH EXTERNAL ACTIVATION - A surgical distraction apparatus is disclosed. The surgical distraction apparatus includes a tissue distraction device adapted for implantation, the tissue distraction device including a plurality of distraction members, one or more actuators adapted for implantation and operatively coupled to the tissue distraction device, the one or more actuators being configured to drive the tissue distraction device and adjust the alignment of the plurality of distraction members, and an activator adapted to deliver one or more pulses to at least one actuator in the one or more actuators. | 12-04-2014 |
20140378980 | Cortical Rim-Supporting Interbody Device - A central inflatable distractor and a perimeter balloon are inserted into the disc space in uninflated configurations. The central inflatable distractor is then expanded, thereby distracting the vertebral endplates to the controlled height of the central inflatable distractor. The perimeter balloon is then inflated with a curable substance. The perimeter balloon expands as it is filled with the curable substance and conforms to the void remaining in the disc space around the central inflatable distractor, thereby creating a horseshoe shape. Once the flowable material in the perimeter balloon has cured, the central inflated distractor can be deflated and removed. The remaining void (or inner space) is then packed with graft for fusion. | 12-25-2014 |
20140378981 | METHOD AND APPARATUS FOR DISTRACTING A JOINT, INCLUDING THE PROVISION AND USE OF A NOVEL FLUID JOINT SPACER - A fluid joint spacer comprising a body having means for receiving a pressurized fluid from an external source and applying that pressurized fluid against a joint element so as to create a flowing fluid bearing within the joint. | 12-25-2014 |
20140378982 | DEVICE AND METHOD FOR HIP DISTENTION AND ACCESS - A device for accessing and distending a joint comprises a distraction structure having a generally tapered distal portion adapted to penetrate a tissue region and create an access space within a joint. The distraction structure also includes a lumen extending from a proximal surface to a distal portion. The device further includes a distention structure deployable through the lumen and adapted to exert a force between a first joint surface and a second joint surface and create a working space. The distention structure may, in some embodiments, include an elongate member having a proximal end, a distal end, and a lumen extending along at least a portion of the length of the elongate member, a first expandable region deployable from a first substantially collapsed position to a second substantially expanded position, the first expandable region adapted to exert a force between the first joint surface from the second joint surface. | 12-25-2014 |
20140378983 | DISTRACTOR WITH REMOVABLE FOOTPLATES - A bone distractor assembly configured to distract first and second bone segments on opposite sides of a bone gap is provided. In one embodiment the distractor assembly includes a distractor having a first coupler and a second coupler, a first footplate releasably coupled to the first coupler, a second footplate releasably coupled to the second coupler, and a locking mechanism releasably coupling the first and second footplates to the first and second couplers. The first and second footplates releasably are each configured to attach to bone. The locking mechanism includes a tube, wherein removal of the tube releases the first and second footplates from the first and second couplers. | 12-25-2014 |
20150018832 | Knee spacer system with adjustable separator - The invention relates to a knee spacer for temporary replacement of an artificial knee joint, whereby the knee spacer comprises a tibial component ( | 01-15-2015 |
20150057668 | JOINT DISTRACTION DEVICE FOR ARTHROSCOPIC SURGERY - A joint distraction device for use in an arthroscopic surgery is provided. The device has a joint distraction mechanism, situated in between two bone fixation surfaces, and is capable of changing the relative distance between these two surfaces. The force generated by the mechanism should be sufficient to insert bone spikes affixed to the surfaces into bone, as well as distract the joint to create a sufficient enough gap to allow the intended procedure. With the surfaces and spikes engaged to bone at opposite sites of a joint, an increase in distraction force results in an increase in the relative distance results, hence increasing the space within the joint. Embodiments of this invention, compared to fracture table approaches, effectively eliminate the risk of pudendal nerve injury, allow for longer surgical times, and allow for much more controllable joint distraction. | 02-26-2015 |
20150066039 | CONIC RETRACTION - A conic retractor for retraction of tissue of a mammal may comprise an at least partially hollow first truncated cone ( | 03-05-2015 |
20150073420 | FEMORAL ELEVATOR - A bone elevator system includes: a bone hook; a first coupling device; an elevator arm member including a substantially straight first elongate arm and a substantially straight second elongate arm which is offset from and fixedly coupled with the first elongate arm, the first coupling device coupling the first elongate arm with the bone hook, the second elongate arm configured for being coupled, by way of a second coupling device, with an anchoring post. | 03-12-2015 |
20150073421 | SURGICAL IMPALING MEMBER - An implant for orthopedic surgery includes an impaling member ( | 03-12-2015 |
20150088144 | SURGICAL TOOL - A surgical tool includes a pair of pivotally coupled operating handles and working distal ends connected thereto configured to engage bone fixation elements. A toothed ratchet member is arranged across the handles and includes a first and second tooth rack. The first tooth rack includes a plurality of teeth angled in a first direction and the second tooth rack includes a plurality of teeth angled in a second direction. The ratchet member is rotatable with respect to the handles to selectively present the first or second tooth rack to a pawl disposed on one of the handles. The handles are operable for closing or spreading movement via selective engagement of the pawl with the first or second tooth rack, which correspondingly closes or spreads the working distal ends. A method for operating the tool is also disclosed. | 03-26-2015 |
20150105782 | ACTUATED POSITIONING DEVICE FOR ARTHROPLASTY AND METHODS OF USE - A joint balancing insert with sensors and an actuated mechanism is disclosed. The joint balancing insert is used to balance a joint during arthroplasty surgery, as the sensors provide force, position and angular data relating to the movement of the joint, while the actuated mechanism allows for highly accurate and dynamic adjustments of the joint based on the data from the sensors. Various configurations of actuated mechanisms and sensors may be implemented in the insert to provide for manual or real time control of the insert, and customized interfaces are provided for visualized feedback of adjustments. Sensor data may also be collected and compared with expected or preferred data sets to provide adjustment recommendations and achieve better outcomes based on historical data. | 04-16-2015 |
20150297262 | Central Structures Spreader for the Lumbar Spine - A spinal device and associated method are provided for spreading of first and second vertebral elements, each of the first and second vertebral elements having a circumferential surface defining a vertebral body and a pedicle having a pedicle root portion adjacent the circumferential surface. The device includes a first end member having at least one surface adapted to conform to at least one of the circumferential surface and the pedicle root portion of the first vertebral element, and a second end member having at least one surface adapted to conform to at least one of the circumferential surface and the pedicle root portion of the second vertebral element. The device further includes a resilient member extending between the first and second end members and being adapted to exert a force against the first and second vertebral elements. | 10-22-2015 |
20150297277 | INSTRUMENTS AND METHODS FOR ADJUSTING SEPARATION DISTANCE OF VERTEBRAL BODIES WITH A MINIMALLY INVASIVE SPINAL STABILIZATION PROCEDURE - A spinal stabilization system may be formed in a patient. In some embodiments, a minimally invasive procedure may be used to form a spinal stabilization system in a patient. Bone fastener assemblies may be coupled to vertebrae. Each bone fastener assembly may include a bone fastener and a collar. Extenders may be coupled to the collar to allow for formation of the spinal stabilization system through a small skin incision. The extenders may allow for alignment of the collars to facilitate insertion of an elongated member in the collars. An elongated member may be positioned in the collars and a closure member may be used to secure the elongated member to the collars. An adjuster may be used in conjunction with the extenders to change a separation distance between the bone fastener assemblies. | 10-22-2015 |
20150305730 | METHOD AND APPARATUS FOR DISTRACTING A JOINT, INCLUDING THE PROVISION AND USE OF A NOVEL JOINT-SPACING BALLOON CATHETER AND A NOVEL INFLATABLE PERINEAL POST - A method for creating space in a joint, the method comprising:
| 10-29-2015 |
20150305790 | Patella Protector - A patella protector may be positioned in a manner in which it does not obstruct a patella or a prosthesis, while providing protection for the patella from accidental damage during a surgical procedure, such as a knee replacement. The patella protector may be a clamp with two contact surfaces connected by a stainless steel connecting element providing an inward bias to hold the contact surfaces against the patella. | 10-29-2015 |
20150313703 | DEVICES AND METHODS FOR MINIMALLY INVASIVE ACCESS INTO A JOINT - Devices and methods are disclosed for providing access to a central compartment of a hip joint. The devices can access the central compartment by distracting all or a portion of the labrum. The labrum can be distracted by advancing a device underneath the bottom edge of the labrum, and using the device to further distract the labrum. Some devices can move underneath the labrum to provide a gap for other devices to access the central compartment. | 11-05-2015 |
20150342586 | SURGICAL SPACER INSTRUMENT AND METHOD - A surgical instrument comprises a first member defining a longitudinal axis. A second member is connected with a pivot. A third member defines a first axis disposed at an angular orientation relative to the longitudinal axis and is connected with the pivot. The second member is translatable relative to the first member to rotate the pivot to move the third member between a first orientation and a second orientation to space vertebral tissue. Systems and methods are disclosed. | 12-03-2015 |
20150351733 | MINIMALLY INVASIVE PORTAL SYSTEM - A minimally invasive surgical portal system, kit, device and method may include a top ring assembly removably connected to an arm of a table mounted frame to provide stability and a secure trajectory. The portal system may include a top-ring assembly which may mount to an arm of a table mounted frame. The system may include a removable connection mechanism comprising a spring loaded collar configured to removably connect the top ring assembly to a table mounted frame. A variable adjustment positioner may be removably connected to the arm of the table mounted frame. The system may also include a depth positioning mechanism. The system may further include a light source configured to be placed down the portal tube. | 12-10-2015 |
20160015375 | METHOD AND APPARATUS FOR DISTRACTING A JOINT - A joint-spacing balloon catheter comprising:
| 01-21-2016 |
20160022344 | SPACER, IMPLANT ASSEMBLY INCLUDING THE SAME, MANUFACTURING METHOD OF SPACER, AND SURGICAL METHOD FOR SPACER INDWELLING - A spacer and implant assembly are disclosed, the spacer including an outer balloon that is folded so as to be dilatable, and an inner balloon that is folded so as to be dilatable, and that is removably inserted into the outer balloon. The inner balloon dilates in response to introduction of a dilating fluid having a lower viscosity than a viscosity of a filling material inserted into the outer balloon, and the outer balloon dilates in response to the dilation of the inner balloon. | 01-28-2016 |
20160022439 | IMPLANT INSERTER - An apparatus for inserting an implant between vertebrae includes a body having a through bore, a central shaft movable within the through bore, the central shaft having a proximal end and a distal end. The apparatus includes a pair of distractor arms having proximal portions and distal portions, the proximal portions pivotally coupled to the body and distal portions for engagement between the vertebrae. Tracking slots are formed in and extend through surfaces of and along a longitudinal axes of the distractor arms and an attachment tip is operably connected to the central shaft, the attachment tip is configured to grip the implant. The apparatus includes a single guide member projecting outward from the attachment tip and the attachment tip is removably connectable to the central shaft in multiple configurations. | 01-28-2016 |
20160030028 | ADJUSTABLE ORTHOPAEDIC JOINT DISTRACTOR - An orthopaedic joint distractor includes a stem post defining a pivoting axis, an actuator configured to cause translational movement of the stem post, a locking sleeve holding the actuator and the stem post, a distractor arc held by the locking sleeve orthogonally to the pivoting axis and having a surface, and a first locking member held by the locking sleeve that can be advanced away from and toward the surface. The first locking member prevents rotation of the distractor arc about the pivoting axis when it has advanced a sufficient distance toward the surface. | 02-04-2016 |
20160030029 | SYSTEMS AND METHODS FOR SPINAL SURGERY - Disclosed herein are methods and devices for distracting adjacent vertebrae during surgical procedures for implanting spinal prostheses. In an exemplary embodiment, a distractor is disclosed that maintains the empty space between adjacent vertebrae following a discectomy, and that can removably mate with other surgical instruments, such as, for example, a filler bar, an implanting tool, or a funnel. In other embodiments of the present invention a distractor is disclosed having various features to assist in implanting a spinal prosthesis, such as, for example, an angled distal end and/or an expandable paddle. In another embodiment of the present invention, an articulating inserter is disclosed. Moreover, various implants and funnels are also disclosed herein. | 02-04-2016 |
20160038131 | INSTRUMENT DEPLOYED TISSUE PROTECTOR - A surgical device includes a guiding instrument; a protector comprised of a protective material held in a non-protecting state by the guiding instrument and having a protection state; and an actuator connected to the protector that is configured to advance the protector along the guiding instrument such that the protector is allowed to assume the protection state. | 02-11-2016 |
20160100830 | METHODS AND APPARATUS FOR JOINT DISTRACTION - A method of treating a patient's joint having opposing joint surfaces includes providing an elongate member having a proximal end, a distal end and an expandable member near the distal end. The expandable member is positioned in the joint between the joint surfaces and expanded so as to separate the joint surfaces away from one another into a distracted position. The joint is manipulated while in the distracted position so that the joint is distracted and in flexion. A diagnostic or therapeutic procedure is then performed on the joint while maintaining the joint in the flexed and distracted position. | 04-14-2016 |
20160106408 | Orthopedic Tools for Implantation - The present application is generally directed to improved instruments and instrument features for distraction and tissue retraction. In particular, the present application is directed to distraction blades and wide blocking blades that can be used together, or individually, to assist in the distraction of bone and the retraction of tissue during a surgical procedure, such as a spinal fusion procedure. | 04-21-2016 |
20160106409 | IMPROVEMENTS IN OR RELATING TO ASSEMBLIES FOR USE IN KNEE REPLACEMENT SURGERY - An assembly ( | 04-21-2016 |
20160120529 | SURGICAL INSTRUMENT AND METHOD - A surgical instrument includes a first arm that defines a longitudinal axis and includes at least one tissue engaging member being movable along a transverse axis. A second arm is translatable relative to the first arm and includes at least one tissue engaging member being movable along a transverse axis thereof. The tissue engaging members are relatively movable between a first configuration and a second configuration to space tissue. Systems and methods are disclosed. | 05-05-2016 |
20160174959 | SURGICAL ACCESS SYSTEM AND RELATED METHODS | 06-23-2016 |
20160183994 | SYSTEMS AND METHODS FOR DISTRACTION - A system for moving a portion of a patient's body including a housing having a first cavity extending along a longitudinal axis, a first distraction rod having a proximal end and a distal end, the first distraction rod and the housing being telescopically displaceable with respect to each other along the longitudinal axis, the first distraction rod having a cavity extending along the longitudinal axis, a second distraction rod having a proximal end and a distal end and configured to be telescopically displaceable from within the second cavity along the longitudinal axis, and a drive system configured to move the first distraction rod in relation to the housing and to move the second distraction rod in relation to the first distraction rod. | 06-30-2016 |
20160249967 | SPINAL SURGERY DISTRACTION WITH AN INTEGRATED RETRACTOR | 09-01-2016 |
20170231612 | FEMORAL ELEVATOR DEVICE | 08-17-2017 |
20180021031 | SYSTEMS FOR DISTRACTION OF UNCINATE JOINTS | 01-25-2018 |