K2M, Inc. Patent applications |
Patent application number | Title | Published |
20150289888 | INTERVERTEBRAL PROSTHESIS ENDPLATE HAVING DOUBLE DOME AND SURGICAL TOOLS FOR IMPLANTING SAME - An endplate for an intervertebral prosthesis includes a generally planar base plate, a first elevated region, or dome, within the base plate periphery, and a second elevated region, or dome, within the boundary of the first elevated region. The antero-posterior and side-to-side (medial-lateral) dimensions of the first elevated region are made to be unequal in order to provide resistance to torsional stresses, and the laterally opposite sidewalls of the first elevated region are defined by arcs that terminate in sagittal planes of the endplate, and are symmetrical with respect to a coronal plane of the endplate. A bone rasp and a groove cutter for use in implanting the prosthesis are also provided. | 10-15-2015 |
20150282817 | EXPANDABLE REAMER AND METHOD OF USE - A surgical reamer assembly includes a dilator having a longitudinal passage extending therethrough for receiving a guidewire and a tubular channel positioned over the dilator. The surgical reamer assembly also includes an expandable reamer head coupled to an elongated shaft, such that the expandable reamer head is insertable through the tubular channel once the dilator and guidewire are removed. | 10-08-2015 |
20150190179 | TRANSVERSE ROD CONNECTOR - A transverse rod connector includes an elongate member having first and second ends and first and second connection members. The first and second connection members are connected with first and second ends, respectively. The first and second connection members are configured for multidirectional positioning with respect to the elongate member. The first and second connection members are each dimensioned to be selectively and releasably secured to a bone anchor. | 07-09-2015 |
20150142057 | TRANSVERSE ROD CONNECTOR - A transverse rod connector includes an elongate member having first and second ends and first and second connection members. The first and second connection members are connected with first and second ends, respectively. The first and second connection members are configured for multidirectional positioning with respect to the elongate member. The first and second connection members are each dimensioned to be selectively and releasably secured to a bone anchor. | 05-21-2015 |
20150025581 | RETENTION PLATE MEMBER FOR A SPINAL PLATE SYSTEM - A retention member for a spinal plate system where at least one or more segments of the retention member cover the head portion of a bone anchor member to inhibit movement of the bone anchor member that is inserted into the plate. The retention member allows for ease of insertion of the bone anchor member and once the bone anchor member is fully seated the retention member is in place. | 01-22-2015 |
20140350560 | INTERVERTEBRAL DISC REPLACEMENT AND ASSOCIATED INSTRUMENTATION - An endplate for an intervertebral prosthesis includes an inner domed region and a peripheral rim wherein the inner domed region has a non-circular plan and has an area that is at least 50% of the area of the endplate. A surgical instrument for milling a recess in a vertebral endplate includes a cutting tool having a drive shaft with a positioning collar, a guard frame, and a pair of guide plates attached to the guard frame and spaced to confine the positioning collar and having guide slots for the drive shaft. | 11-27-2014 |
20140324105 | OCCIPITAL FIXATION ASSEMBLY, SYSTEM AND METHOD FOR ATTACHING THE SAME - An occipital fixation assembly is provided. The occipital fixation assembly includes a first mounting plate configured for placement within a sinus cavity adjacent a rear portion of a skull of a patient. A threaded post extends from the first mounting plate. A coupling member includes an aperture configured to receive the threaded post therethrough. The coupling member includes an offset extension configured to support a surgical rod thereon. A fixation nut configured to threadably engage the threaded post of the first mounting plate is rotatable about the threaded post and translatable therealong. The fixation nut is rotatable with respect to the first mounting plate and the coupling member such that rotation of the fixation nut in a predetermined direction brings the first mounting plate and the coupling member toward one another and into secured engagement with the skull of a patient. | 10-30-2014 |
20140277478 | SPINAL IMPLANT AND SURGICAL METHOD - A spinal implant includes a substantially U-shaped body portion and a plate portion. The body portion has first, second, and third walls joined to one another such that the second and third walls define legs of the body portion. The body portion is configured and dimensioned to be positioned between first and second vertebral bodies. The plate portion has a main portion and a flange portion. The main portion has at least one first screw hole oriented towards the first vertebral body at an oblique angle relative to a horizontal axis of the body portion. The flange portion has a second screw hole oriented towards the first vertebral body with the second screw hole oriented substantially parallel to the horizontal axis of the body portion. The flange portion is coupled to the main portion such that the flange portion extends past the first surface of the main portion. | 09-18-2014 |
20140243900 | ILIOSACRAL POLYAXIAL SCREW - Provided is an iliosacral polyaxial screw system. A multiple part insert member is provided to secure the screw to the housing of the assembly to accommodate screws in which the shank diameter of the screw is greater than the bottom opening of the screw housing or greater than the opening of a ring member designed to capture the head of the screw in the housing. | 08-28-2014 |
20140243605 | MINIMALLY INVASIVE RETRACTOR AND METHODS OF USE - A device, system and method for orthopedic spine surgery using a novel screw-based retractor, disclosed herein, that allows for access to the spine through a minimally or less invasive approach. The retractor device is designed to be coupled to a pedicle screw and then to have opposed arms of the retractor spread apart to open the wound proximally. The retractor is removed by pulling it out of the wound whereby the retractor is deformed to pass over the pedicle screw head. The retractor is intended to be made of a stiff plastic material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed. | 08-28-2014 |
20140236238 | Iliosacral polyaxial screw - Provided is an iliosacral polyaxial screw system. A multiple part insert member is provided to secure the screw to the housing of the assembly to accommodate screws in which the shank diameter of the screw is greater than the bottom opening of the screw housing or greater than the opening of a ring member designed to capture the head of the screw in the housing. | 08-21-2014 |
20140214167 | SPINAL IMPLANTS, SPINAL IMPLANT KITS, AND SURGICAL METHODS - A spinal implant includes a body, plate, and bone screws. The body includes a first wall having second and third walls joined thereto to define legs. In an embodiment, the body and plate are of unitary construction. In alternative embodiments, the body is formed from a first material and is configured for positioning between vertebral bodies. In other embodiments, the body is separate from the plate. The plate has a main portion and a flange. The main portion has a first screw hole oriented towards the first vertebral body at an oblique angle relative to the horizontal axis of the body. The flange has a second screw hole oriented towards the second vertebral body and substantially parallel to the horizontal axis. The flange is coupled to the main portion and extends past the main portion. Each bone screw is insertable through a screw hole of the plate for attachment to bone. A kit including a body, bone screws, and a plurality of different plates is also provided. | 07-31-2014 |
20140214166 | SPINAL IMPLANTS, SPINAL IMPLANT KITS, AND SURGICAL METHODS - A spinal implant includes a body, plate, and bone screws. The body includes a first wall having second and third walls joined thereto to define legs. In an embodiment, the body and plate are of unitary construction. In alternative embodiments, the body is formed from a first material and is configured for positioning between vertebral bodies. In other embodiments, the body is separate from the plate. The plate has a main portion and a flange. The main portion has a first screw hole oriented towards the first vertebral body at an oblique angle relative to the horizontal axis of the body. The flange has a second screw hole oriented towards the second vertebral body and substantially parallel to the horizontal axis. The flange is coupled to the main portion and extends past the main portion. Each bone screw is insertable through a screw hole of the plate for attachment to bone. A kit including a body, bone screws, and a plurality of different plates is also provided. | 07-31-2014 |
20140214040 | SYSTEMS, DEVICES AND APPARATUSES FOR BONY FIXATION AND DISK REPAIR AND REPLACEMENT METHODS RELATED THERETO - The present invention features new methods, apparatuses and devices for fixing adjacent bone segments, segments of a bony structure and adjacent vertebrate of a spine. The methods, apparatuses and devices utilize a new apparatus for forming a channel in a surface of the bone or bony structure segments or adjacent vertebra or a channel submerged within the bone or bony structure segments or adjacent vertebra. In more particular embodiments such apparatuses and methods including forming an arcuate channel and which channel can receive therein a curved rod or implant member, which also preferably is arcuate, and avoids the associated problems with prior cage or straight rod and screw systems. Also featured are systems, apparatuses and methods for repairing, replacing or augmenting the nucleus and/or annulus of a disc. | 07-31-2014 |
20140163617 | SYSTEM AND METHOD FOR PERFORMING SPINAL SURGERY - Systems and methods for surgical spinal correction are disclosed. A system including a plurality of bone screws, spinal rods, manipulators, and/or transverse couplers is disclosed for the manipulation of the spinal column is disclosed. A method of achieving, in a single action, manipulation and/or rotation of the spinal column using the disclosed system is disclosed. Also disclosed is a method of conducting spinal surgery to correct spinal deformities wherein spinal rods are pre-bent in a physiological sagittal plane prior to attachment of the vertebrae using bone screws. | 06-12-2014 |
20140155942 | MINIMAL PROFILE ANTERIOR BRACKET FOR SPINAL FIXATION - A spinal fixation device for securing to a spine includes a body having one or more longitudinal members extending between a pair of wedge members. Each wedge member defines one or more openings therethrough for the reception of a bone screw. The wedge members are disposed on opposite ends of the one or more longitudinal members. One of the wedge members is positionable within a first intervertebral space and the other wedge member is positionable within a second intervertebral space. The one or more longitudinal members define a length that spans one or more vertebrae. The one or more longitudinal members are positionable within the one or more vertebrae when the wedge members are positioned within the respective first and second intervertebral spaces to maintain the body in a minimal profile orientation relative to the spine. | 06-05-2014 |
20140142642 | Adjustable Spinal Implant Insertion Instrument - An instrument for inserting a spinal implant into an intervertebral space is disclosed. The instrument includes an elongated body having inner and outer shafts configured to longitudinally translate with respect to each other, a holding tip which is configured to articulate with respect to the elongated body in response to the longitudinal translation of the inner and outer shafts, and a driveshaft assembly configured to cooperate with the articulation of the holding tip and secure a spinal implant to the instrument. A spinal implant and a system for inserting a spinal implant into an intervertebral space including an insertion instrument and a spinal implant are also disclosed. | 05-22-2014 |
20140135933 | EXPANDABLE VERTEBRAL DEVICE WITH CAM LOCK - An expandable cage supports adjacent vertebra in spine surgery. The expandable cage includes a first supporting member configured to engage tissue and a second supporting member operatively associated with the first supporting member. The first and second supporting members are movable relative to each other. The expandable cage further includes a cam lock mechanism configured to maintain the first and second supporting members in a fixed relative position. In another embodiment, the expandable cage includes a ring plate lock mechanism in lieu of the cam lock mechanism. The ring plate lock mechanism is adapted to maintain the first and second supporting members in a fixed relative position. | 05-15-2014 |
20140135844 | SPINAL STABILIZATION SYSTEM - A spinal stabilization system including a connecting rod and a bone screw. The connecting rod includes an elongate rounded section, an elongate head portion, and a neck portion connecting the elongate rounded section with the elongate head portion. The bone screw includes a head portion defining a slot, a shank extending longitudinally from the head portion, and a set screw configured to secure the connecting rod in the slot. The head portion includes a pair of radially opposing walls defining the slot therebetween. The head portion includes a trailing end and a leading end. The trailing end includes a guide member defining an aperture configured and dimensioned to receive the set screw therethrough. The aperture is in communication with the slot. In particular, the guide member interconnects the pair of radially opposing walls. | 05-15-2014 |
20140135843 | SPINAL STABILIZATION SYSTEM - A spinal stabilization system includes a connecting rod and a bone screw. The connecting rod includes an elongate rounded section, an elongate head portion, and a neck portion connecting the elongate rounded section with the elongate head portion. The bone screw includes a head portion defining a slot, a shank extending longitudinally from the head portion, and a set screw configured to secure the connecting rod in the slot. The slot includes a leading end portion configured to receive the elongate rounded section of the connecting rod and a trailing end portion configured to threadably engage the set screw, wherein the slot is flared such that elongate rounded section of the connecting rod is pivotable about the leading end portion of the slot. | 05-15-2014 |
20140135842 | SPINAL STABILIZATION SYSTEM - A spinal stabilization system includes a connecting rod and a bone screw. The connecting rod includes an elongate rounded section, an elongate head portion, and a neck portion connecting the elongate rounded section with the elongate head portion. The bone screw includes a head portion defining a slot, a shank extending longitudinally from the head portion, and a cap. The slot includes a leading end portion configured to receive the elongate rounded section of the connecting rod and a trailing end portion defining a planar surface. The cap is configured to enclose the planar surface of the trailing end portion of the slot and secure the connecting rod in the slot to the bone screw. | 05-15-2014 |
20140135841 | SPINAL STABILIZATION SYSTEM - A spinal stabilization system includes a connecting rod and a bone screw. The connecting rod includes an elongate rounded section, a pair of elongate rail portions, and a pair of neck portions connecting the elongate rounded section with the respective pair of elongate rail portions. Each elongate rail portion extends radially outward from the elongate rounded section and is diametrically opposed to the other elongate rail portion. The bone screw includes a head portion defining a slot, a shank extending longitudinally from the head portion, and a set screw configured to secure the connecting rod in the slot. The slot includes a leading end portion configured to receive one of the pair of elongate rail portions and a trailing end portion configured to engage the set screw, wherein the connecting rod is pivotable about the elongate rounded section in the slot. | 05-15-2014 |
20140135840 | SPINAL STABILIZATION SYSTEM - A spinal stabilization system includes an elongated loop member and a bone screw. The elongated loop member includes a pair of opposing elongate bodies defining a gap therebetween and a pair of connection members connecting the pair of opposing elongate bodies at opposite ends of the elongate bodies. The bone screw includes a head portion defining a slot, a shank extending longitudinally from the head portion and a set screw. The slot includes a leading end portion configured to receive at least a portion of the elongated loop member and a trailing end portion adapted to receive the set screw. The gap defined by the pair of opposing elongate bodies is dimensioned to receive at least a portion of the bone screw securely connected to one of the pair of opposing elongate bodies. The gap is configured and dimensioned to facilitate unilateral adjustment of the elongated loop member relative to the bone screw. | 05-15-2014 |
20140128873 | DYNAMIC CERVICAL PLATE - A dynamic cervical plate includes a first end section and a second end section. In embodiments, the dynamic cervical plate may include one or more middle sections positioned between the first and second end sections. Each section may be longitudinally repositionable. Each section may include a plurality of openings for receiving threaded fasteners such as a self-starting screw or a self-tapping screw. In addition, each section may include an orifice for releasably mating with a drill guide. Each of the end sections may include a notch at one end for aligning with the drill guide or fixation pins. In one embodiment, a pin is used to interconnect the sections. In other embodiments, support bars are used to limit flexure between sections. In embodiments, one or more locking elements and/or one or more support bars may operably interconnect each section. | 05-08-2014 |
20140074168 | GROWING SPINAL ROD SYSTEM - A growing spinal rod system is configured to grow in response to the growth of a patient. The growing spinal rod system includes a housing, a spacer, and a sliding spinal rod. The housing includes a stepped passage therethrough. The spacer is disposed within the stepped passage and defines a through hole. The spacer includes a plurality of ribs biased inwards and into the through hole. The sliding spinal rod is slidably inserted through the through hole of the spacer. The sliding spinal rod moves the plurality of ribs outwards. The plurality of ribs permits the sliding spinal rod to extend from the housing and inhibit the sliding spinal rod from retracting into the housing. | 03-13-2014 |
20140058458 | POLYAXIAL SCREW ASSEMBLY - A polyaxial screw assembly includes a pedicle screw, a coupling, an insert, and a housing. The pedicle screw includes a shank having a helical thread formed thereon and a head at one end. The coupling is positioned on top the pedicle screw and releasably engages portions of the head. The coupling and pedicle screw are positioned within a distal portion of the housing. The pedicle screw is slid through an opening in the insert and the insert is thread into the distal portion of the housing to retain the coupling and the pedicle screw within the housing. The pedicle screw is rotatable and pivotable relative to the housing. Compressing the coupling within the housing locks the pedicle screw in a desired orientation. | 02-27-2014 |
20140012379 | SYSTEMS, DEVICES AND APPARATUSES FOR BONY FIXATION AND DISK REPAIR AND REPLACEMENT METHODS RELATED THERETO - The present invention features new methods, apparatuses and devices for fixing adjacent bone segments, segments of a bony structure and adjacent vertebrate of a spine. The methods, apparatuses and devices utilize an apparatus for forming a channel in a surface of the bone or bony structure segments or adjacent vertebra or a channel submerged within the bone or bony structure segments or adjacent vertebra. In more particular embodiments such apparatuses and methods including forming an arcuate channel and which channel can receive therein a curved rod or implant member. Also featured are systems, apparatuses and methods for removably suspending a spacer in the intervertebral space while forming such a channel as well as systems, apparatuses and methods for use of dynamized implant members. | 01-09-2014 |
20130245768 | Apparatus and Methods for Inserting an Implant - A system and method for inserting an implant into a cavity is disclosed, which may include advancing an implant insertion instrument toward a pair of adjacent bodies, the implant insertion instrument having two opposed ramps, wherein each ramp has a distal tip and wherein the longitudinal axes of the opposed ramps are separated by an initial angle; inserting the distal tips of the opposed ramps between the adjacent bodies, thereby creating an initial interbody cavity between the adjacent bodies; expanding the interbody cavity while maintaining the initial angle between the longitudinal axes of the opposed ramps; placing the implant in a final location between the adjacent bodies; transferring a compressive force urging the adjacent bodies together from the opposed ramps to the implant; and extracting the implant insertion instrument from the interbody cavity. | 09-19-2013 |
20130238097 | INTERVERTEBRAL INSTRUMENT, IMPLANT, AND METHOD - An intervertebral instrument includes a shaft having distal and proximal ends. The proximal end of the shaft includes an attaching feature connected to handle. The shaft defines a pair tracks disposed along a portion of the surface thereof. The distal end includes a pair of wings. Each track guides instruments and implants along the intervertebral instrument. The implants are configured to receive bone graft or bone enhancers. The distal end of the shaft may include a removably attachable tip configured to engage the implants. The implants and the removably attachable tip form an implantable intervertebral disk. An intervertebral instrument and implant kit is also disclosed. A method of inserting intervertebral implants is also disclosed. | 09-12-2013 |
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 |
20130237767 | 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 |
20130226245 | SEMI-CONSTRAINED BONE SCREW - A bone screw for attaching a bone plate to bone includes a shank defining a lumen extending at least partially therethrough from a proximal end thereof, a head defining a lumen therethrough, and a rod member. The rod member is configured for insertion through the lumen of the head and into the lumen of the shank. The rod member is fixedly engageable with the shank and moveably coupled to the head such that both the rod member and the shank are moveable with respect to the head. | 08-29-2013 |
20130225935 | 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. | 08-29-2013 |
20130184763 | ROD REDUCER, COMPRESSOR, DISTRACTOR SYSTEM - A compressor/distractor system for operating on a spine is disclosed. The system includes two rod reducers which each advance a spinal rod into the shoulder portion of a pedicle screw. Each rod reducer includes an inner member, an outer member, and a pair of gripping members. Each outer member receives and advances the spinal rod into the pedicle screw. The outer member also includes a through slot which receives the proximal end of each of the pair of gripping members which may limit the longitudinal translation of the outer member with respect to the inner member. The compressor/distractor system may include a compressor/distractor device which has a compressing, a distracting, and a neutral configuration. A method for using the minimally invasive rod reducers with the compressor/distractor system to secure at least two pedicle screws in desired positions on a spinal rod is also disclosed. | 07-18-2013 |
20130144342 | SPINE STABILIZATION SYSTEM - A spinal stabilization system includes a connecting rod, a rod bending device, and a plurality of bone screws. The connecting rod includes an elongate round portion, an elongate head portion and a neck portion connecting the elongate round portion with the elongate head portion. The rod bending device includes an elongate body defining an aperture configured and dimensioned to receive the connecting rod therethrough in a single orientation. The bone screws include a housing portion and a screw shaft distally extending from the housing portion. The housing portion includes an inner housing and an outer housing slidably surrounding at least a portion of the inner housing. The inner housing defines a slot configured and dimensioned to releasably secure the elongate round portion of the connecting rod therein. The outer housing is movable relative to the inner housing between an unlocked state and a locked state. | 06-06-2013 |
20130131807 | EXPANDABLE VERTEBRAL DEVICE WITH RING PLATE - An expandable cage supports adjacent vertebra in spine surgery. The expandable cage includes a first supporting member configured to engage tissue and a second supporting member operatively associated with the first supporting member. The first and second supporting members are movable relative to each other. The expandable cage further includes a cam lock mechanism configured to maintain the first and second supporting members in a fixed relative position. In another embodiment, the expandable cage includes a ring plate lock mechanism in lieu of the cam lock mechanism. The ring plate lock mechanism is adapted to maintain the first and second supporting members in a fixed relative position. | 05-23-2013 |
20130131732 | DYNAMIC ANTERIOR VERTEBRAL PLATE - A spinal fixation system includes a low profile dynamic anterior vertebral body plate and bone screws for the fixation and stabilization of the cervical spine. The system has a locking element through which the bone screw passes and the locking element is capable of movement relative to the plate when the bone screws are fully inserted and in a locked position. | 05-23-2013 |
20130110179 | SPINAL FIXATION SYSTEM HAVING LOCKING AND UNLOCKING DEVICES FOR USE WITH A MULTI-PLANAR, TAPER LOCK SCREW | 05-02-2013 |
20130096625 | SURGICAL ROD SCORER AND METHOD OF USE OF THE SAME - A surgical rod scorer is provided. The surgical rod scorer includes a pair of elongated shaft members that are pivotably coupled to one another and movable from a spaced-apart configuration to an approximated configuration. Each of the shaft members includes a handle member that is configured for gripping by a user and jaw member that is configured to support respective first and second cutting assemblies thereon. The first and second cutting assemblies each include one or more cutting elements thereon configured and dimensioned to score surgical rod when the jaw members are in the approximated configuration and rotated about the surgical rod. | 04-18-2013 |
20130046352 | LAMINAR HOOK INSERTION DEVICE - A surgical hook insertion device includes an elongate body defining a lumen therethrough and an actuation assembly. The elongate body has a retaining portion configured and dimensioned to releasably retain a laminar hook therein. The actuation assembly includes an actuation rod and an actuator member. The actuation rod is slideably disposed within the lumen of the elongate body. The actuator member is operatively coupled with the actuation rod and is slideably mounted on the elongate body, wherein the actuation assembly is transitionable between a first position in which a portion of the actuation rod engages the laminar hook releasably disposed in the retaining portion and a second position in which the actuation rod disengages the laminar hook. | 02-21-2013 |
20130046345 | SPINAL FIXATION SYSTEM - A polyaxial pedicle screw includes a housing, a bone screw member, and an anvil. The bone screw member includes a head and a threaded shaft extending from the head. The head is selectively securable within the housing. The anvil is positionable within the housing adjacent to the head of the bone screw member when the anvil and the head of the bone screw member are positioned within the housing. The anvil may define one or more grooves in an outer surface of the anvil. The groove defines a flap that is flexibly attached to the anvil to enable the anvil to flex an amount sufficient to maintain the head of the bone screw in constant contact with the anvil when the bone screw member is moved relative to the anvil. A rod reducer may be secured to the polyaxial pedicle screw to secure a spinal rod within the housing. | 02-21-2013 |
20130046344 | ROD REDUCTION DEVICE - A rod reduction device includes a housing defining a longitudinal axis. The housing has first and second arms extending distally therefrom. The distal ends of the arms are configured to releasably attach to a bone anchor. An anvil is operatively associated with the first and second arms of the housing and translatable along the longitudinal axis for facilitating the insertion of a spinal rod into the bone anchor. The anvil and each arm are positionable between an open position and a closed position. | 02-21-2013 |
20130041228 | MINIMALLY INVASIVE RETRACTOR AND METHODS OF USE - A device, system and method for orthopedic spine surgery using a novel screw-based retractor, disclosed herein, that allows for access to the spine through a minimally or less invasive approach. The retractor device is designed to be coupled to a pedicle screw and then to have opposed arms of the retractor spread apart to open the wound proximally. The retractor is removed by pulling it out of the wound whereby the retractor is deformed to pass over the pedicle screw head. The retractor is intended to be made of a stiff plastic material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed. | 02-14-2013 |
20130013003 | POLYAXIAL BONESCREW ASSEMBLY - A bone screw assembly includes a screw, an outer housing, and an inner housing. The screw includes a shank and a head. The outer housing has a proximal end, a distal end, and a passageway extending longitudinally therethrough. The outer housing defines a saddle at the proximal end thereof for receiving at least a portion of a rod therein. The inner housing is positionable within the passageway of the outer housing. The inner housing has a recessed distal portion for receiving the head of the screw therein. The inner housing also includes a proximal surface defining a substantially V-shaped configuration for receiving rods of different diameters therein. | 01-10-2013 |
20120271423 | SPINAL INTERBODY SPACER WITH SEMI-CONSTRAINED SCREWS - An intervertebral implant system is disclosed which includes a spinal spacer for engagement between vertebrae and at least one semi-constrained bone screw assembly. The spinal spacer includes a body extending between first and second end surfaces to define opposing top and bottom vertebral engaging surfaces. The second end surface of the body includes at least one aperture formed therethrough at an angle relative to the centerline axis and a screw opening defined therethrough. The semi-constrained bone screw assembly is adapted for insertion through the screw opening and includes a shank, a head and a rod member. The rod member is fixedly engageable with the shank and moveably coupled to the head such that both the rod member and the shank are moveable with respect to the head. | 10-25-2012 |
20120271360 | OCCIPITAL PLATE FOR CERVICAL FIXATION - An adjustable occipital plate includes a central body portion having a plurality of arms extending therefrom in a generally Y-shaped configuration. Two of the arms include elongate slots for slidably receiving retaining members therein. Each retaining member includes a U-shaped channel for receiving a spine rod and a set screw. The central body portion and one arm include openings for receiving bone screws therein. Each of the arms may be angled with respect to the central body portion. | 10-25-2012 |
20120253412 | ADJUSTABLE APPARATUS AND METHODS FOR INSERTING AN IMPLANT - Methods and apparatus for inserting an implant into an intervertebral cavity between adjacent vertebral bodies provide for: adjust an initial height between inner surfaces of respective first and second ramps of an inserter; simultaneously sliding first and second ramps of the inserter, and the implant, proximally, toward distal ends of the first and second ramps, such that the vertebral contact surfaces of the respective first and second ramps separate and distract the vertebral bodies and receive the implant into the intervertebral space with no compressive loading, while holding an initial angle between the ramps substantially constant; reversing the sliding of the first and second ramps to permit the vertebral bodies to compressively load the implant, again while holding the initial angle therebetween substantially constant; and withdrawing the distal ends of the first and second ramps from the intervertebral space. | 10-04-2012 |
20120215266 | SINGLE ACTION ANTI-TORQUE ROD REDUCER - A rod reducing device includes an elongate member, a pair of jaw members, a sleeve having a cam pin, and an actuation lever. Translation of the cam pin along the inner surfaces of the jaw members pivotally moves the jaw members between a receiving position in which distal end portions of the respective jaw members are widened and an engaging position in which the distal end portions of the respective jaw members are move toward each other to engage the head of the bone screw. The actuation lever is movable between an open in which a distal end portion of the sleeve is disposed proximal of the distal end portions of the jaw members and a closed position in which the distal end portion of the sleeve is disposed distal of the distal end portions of the jaw members for reducing the connecting rod. | 08-23-2012 |
20120190934 | MINIMALLY INVASIVE RETRACTOR AND POSTED SCREW - A minimally invasive retractor assembly includes a posted screw and one or more retractor blades. Each retractor blade is releasably coupled to the posted screw. The retractor blade or blades are manipulated or flexed relative to the posted screw allowing retraction of tissue surrounding the incision. The retractor is made of a biocompatible material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed. | 07-26-2012 |
20120179261 | INTERBODY SPACER - An interbody spacer includes a connecting portion and a pair of leg portions extending from the connecting portion. The connecting portion and the pair of leg portions define top and bottom surfaces configured and adapted to engage first and second vertebral bodies, respectively, and inner and outer sidewalls extending between the top and bottom surfaces. In particular, the top and bottom surfaces of the leg portions include first projections defining a first angle with the respective top and bottom surfaces of the leg portions. The top and bottom surfaces of the connecting portion include second projections defining a second angle with the respective top and bottom surfaces of the connecting portion. The first and second angles are different. | 07-12-2012 |
20120172670 | MINIMAL INCISION MAXIMAL ACCESS MIS SPINE INSTRUMENTATION AND METHOD - A surgical access device includes a frame defining an aperture, first and second support members mounted on the frame, and first and second retractor blades releasably coupled with the first and second support members, respectively. The first and second retractor blades each include a distal portion defining a recess having an arcuate profile, wherein the first and second retractor blades are movable between a close cooperative position and a spaced apart position with respect to each other. | 07-05-2012 |
20120158062 | INTERBODY SPACER - An intervertebral implant includes a body portion defining a longitudinal axis. The body portion includes a distal end portion, a proximal end portion, anterior and posterior walls that extend between the distal and proximal end portions, and top and bottom surfaces. At least one of the top and bottom surfaces includes a plurality of substantially concentrically arranged ridges configured and adapted to engage vertebral bodies. In particular, the plurality of substantially concentrically arranged ridges are a plurality of ring-shaped protrusions that define a generally saw-tooth pattern in a radial direction. | 06-21-2012 |
20120116460 | MINIMALLY INVASIVE RETRACTION DEVICE HAVING REMOVABLE BLADES - A retraction device comprises at least one retracting blade and a pedicle screw. The retracting blade has a distal end having at least one projection with a passage for engaging a retention pin. The pedicle screw has a threaded body and a movable head. The movable head has at least one recess with a channel that can be aligned with the passage of the projection. | 05-10-2012 |
20120116411 | SYSTEMS, DEVICES AND APPARATUSES FOR BONY FIXATION AND DISK REPAIR AND REPLACEMENT METHODS RELATED THERETO - The present invention features new methods, apparatuses and devices for fixing adjacent bone segments, segments of a bony structure and adjacent vertebrate of a spine. The methods, apparatuses and devices utilize a new apparatus for forming a channel in a surface of the bone or bony structure segments or adjacent vertebra or a channel submerged within the bone or bony structure segments or adjacent vertebra. In more particular embodiments such apparatuses and methods including forming an arcuate channel and which channel can receive therein a curved rod or implant member, which also preferably is arcuate, and avoids the associated problems with prior cage or straight rod and screw systems. Also featured are systems, apparatuses and methods for repairing, replacing or augmenting the nucleus and/or annulus of a disc. | 05-10-2012 |
20120088979 | 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. | 04-12-2012 |
20120083853 | DEVICES, SYSTEMS, AND METHODS FOR PERFORMING SPINAL SURGERY - A manipulation device includes a body portion, a plurality of articulatable legs, and at least one lock member. The legs extend from the body portion. Each of the legs is configured to engage a surgical instrument at a distal end thereof. Each of the legs is transitionable between an unlocked condition, wherein the leg is free to articulate, and a locked condition, wherein the leg is fixed in position. The at least one lock member is operably disposed within the body portion and is coupled to at least one of the articulatable legs. The lock member is rotatable relative to the body portion between an unlocked position and a locked position for transitioning the at least one articulatable leg coupled thereto between the unlocked condition and the locked condition. | 04-05-2012 |
20120083846 | DYNAMIC PLATE WITH INSERTS - A spinal plate that is self-adjusting along its longitudinal axis to accommodate subsidence that may occur and aid in loading the bone graft to promote boney fusion while providing rigid fixation. The spinal plate is configured to inhibit loosening or backing out of bone screws. | 04-05-2012 |
20120083662 | RETRACTOR - A retractor for use in spinal procedures is disclosed. The retractor includes a first frame member defining a first recess and a second frame member pivotally connected to the first frame member. The second frame member defines a second recess. The retractor further includes a first blade assembly operably received within the first recess and a second blade assembly operably received within the second recess. The first blade assembly includes a first blade configured to pivot relative to the first frame member and a first blade extender selectively extendable from the first blade. The second blade assembly includes a second blade configured to translate within the second recess and a second blade extender selectively extendable from the second blade. | 04-05-2012 |
20120046699 | SPINAL FIXATION SYSTEM - A polyaxial pedicle screw includes a housing, a bone screw member, and an anvil. The bone screw member includes a head and a threaded shaft extending from the head. The head is selectively securable within the housing. The anvil is positionable within the housing adjacent to the head of the bone screw member when the anvil and the head of the bone screw member are positioned within the housing. The anvil may define one or more grooves in an outer surface of the anvil. The groove defines a flap that is flexibly attached to the anvil to enable the anvil to flex an amount sufficient to maintain the head of the bone screw in constant contact with the anvil when the bone screw member is moved relative to the anvil. | 02-23-2012 |
20120035659 | TRANSVERSE CONNECTOR - The present disclosure provides a transverse connector having first and second spinal rod connecting members disposed on opposing ends of a cross member. Each spinal rod connecting member is configured to connect to a spinal rod. The first and second spinal rod connecting members are configured for multidirectional articulation relative to the cross member. | 02-09-2012 |
20120029642 | Apparatus and Methods for Inserting an Implant - Methods and apparatus for inserting an implant into a cavity provide for: disposing an implant between opposing first and second ramps of an implant insertion instrument; orienting first and second vertebral contact surfaces of the ramps such that they define an initial, non-zero angle therebetween; inserting the first and second ramps into an intervertebral space of a spine; advancing the implant distally along and between the ramps such that the first and second vertebral contact surfaces of the first and second ramps separate while holding the initial angle substantially constant. | 02-02-2012 |
20120022598 | SPINAL FIXATION SYSTEM - A method for immobilizing a spine. The method includes the steps of implanting at least one low profile screw assembly into a first portion of the spine, implanting at least one bone screw assembly that is not a low profile screw into a second portion of the spine and connecting a rod to both the at least one low profile screw assembly to the at least one bone screw assembly which is not a low profile screw. | 01-26-2012 |
20110288591 | MINIMAL PROFILE ANTERIOR BRACKET FOR SPINAL FIXATION - A spinal fixation device for securing to a spine includes a body having one or more longitudinal members extending between a pair of wedge members. Each wedge member defines one or more openings therethrough for the reception of a bone screw. The wedge members are disposed on opposite ends of the one or more longitudinal members. One of the wedge members is positionable within a first intervertebral space and the other wedge member is positionable within a second intervertebral space. The one or more longitudinal members define a length that spans one or more vertebrae. The one or more longitudinal members are positionable within the one or more vertebrae when the wedge members are positioned within the respective first and second intervertebral spaces to maintain the body in a minimal profile orientation relative to the spine. | 11-24-2011 |
20110276093 | SPINAL FIXATION SYSTEM HAVING LOCKING AND UNLOCKING DEVICES FOR USE WITH A MULTI-PLANAR, TAPER LOCK SCREW - Provided is a spinal fixation system including a taper lock screw including an inner housing and an outer housing that are translatable relative to one another to transition the taper lock screw between a locked position and an unlocked position. A locking device releasably connects to and operationally interacts with a flange of the taper lock screw. An unlocking device releasably connects to and operationally interacts with inner housing unlocking tool receptors of the taper lock screw to unlock the taper lock screw. | 11-10-2011 |
20110253760 | SURGICAL ROD SCORER AND METHOD OF USE OF THE SAME - A method for cutting surgical rod in situ is provided. The method includes positioning an operable end of a surgical rod scorer around surgical rod that has been previously affixed to a spinal segment via at least two pedicle screws. A portion of the surgical rod is scored with the surgical rod scorer. The scored surgical rod is grasped with a surgical rod bender. And, the scored surgical rod is bent such that the surgical rod separates along the scored portion of the surgical rod. | 10-20-2011 |
20110251616 | EXPANDABLE REAMER AND METHOD OF USE - A surgical reamer assembly includes a dilator having a longitudinal passage extending therethrough for receiving a guidewire and a tubular channel positioned over the dilator. The surgical reamer assembly also includes an expandable reamer head coupled to an elongated shaft, such that the expandable reamer head is insertable through the tubular channel once the dilator and guidewire are removed. | 10-13-2011 |
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 |
20110245620 | 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 |
20110230920 | SPINAL FIXATION APPARATUS AND METHODS - A bone engaging assembly includes first second bone engaging members. The first bone engaging member defines a first axis and has a first head and a first shaft. The first head defines one or more apertures therethrough. In embodiments, the first head defines a driver interface. The driver interface is defined within the first head and is configured to engage a driving instrument. In one embodiment, the first head includes a post extending from the first head that is configured to engage a rod coupling member. The second bone engaging member defines a second axis. The second bone engaging member defines a second head and a second shaft. The first axis of the first bone engaging member and the second axis of the second bone engaging member define an angle therebetween when the second bone engaging member is positioned within the one or more apertures of the first head. | 09-22-2011 |
20110230918 | ANTERIOR BRACKET FOR SPINAL FIXATION - A spinal fixation device includes a body defining a proximal surface, a pair of side surfaces, and a pair of angled surfaces extending distally and inwardly from opposite ends of the proximal surface. The proximal surface includes at least one proximal opening. Each angled surface includes at least one screw opening in communication with the proximal opening to define a passage extending through the body. The body is configured for positioning partially within an intervertebral space such that the angled surfaces are disposed in abutting relation with at least a portion of opposed surfaces of the adjacent vertebrae and such that the proximal surface is disposed exteriorly of the intervertebral space to permit insertion of a screw through the screw opening and into one of the opposed surfaces of the adjacent vertebrae. | 09-22-2011 |
20110224733 | DUAL ACTION ROD REDUCING AND LOCKING DEVICE AND METHOD - Provided is a dual action surgical instrument for use in orthopedic surgical procedures that is capable of reducing a rod into position in a rod receiving notch in the head of a bone screw with a first action and subsequently locking the rod into the receiving notch by a second action of the same instrument. A method of using the device is also provided. | 09-15-2011 |
20110209821 | Minimally Invasive Retractor and Methods of Use - A device, system and method for orthopedic spine surgery using a novel screw-based retractor, disclosed herein, that allows for access to the spine through a minimally or less invasive approach. The retractor device is designed as a co-molded part of the tulip of a pedicle screw assembly with opposed arms of the retractor spread apart to open the wound proximally. The arms are removed by separating the arms from the tulip and removing them from the incision. The retractor device is intended to be made of a relatively stiff material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed. | 09-01-2011 |
20110184470 | BONE SCREW ASSEMBLY - A bone screw assembly includes a first bone screw, second bone screw, and a coupler. The first bone screw defines a first axis and the second bone screw defines a second axis. The coupler is operably associated with the first bone screw and the second bone screw. The coupler is adapted to mount the first bone screw and the second bone screw to adjacent bone structures. The first axis of the first bone screw and the second axis of the second bone screw define an angle therebetween. The first bone screw and the second bone screw are securable to each other. | 07-28-2011 |
20110172714 | SYSTEM AND METHOD FOR PERFORMING SPINAL SURGERY - Systems and methods for surgical spinal correction are disclosed. A system including a plurality of bone screws, spinal rods, manipulators, and/or transverse couplers is disclosed for the manipulation of the spinal column is disclosed. A method of achieving, in a single action, manipulation and/or rotation of the spinal column using the disclosed system is disclosed. Also disclosed is a method of conducting spinal surgery to correct spinal deformities wherein spinal rods are pre-bent in a physiological sagittal plane prior to attachment of the vertebrae using bone screws. | 07-14-2011 |
20110118791 | ROD REDUCTION DEVICE - A rod reduction device includes a housing defining a longitudinal axis. The housing has first and second arms extending distally therefrom. The distal ends of the arms are configured to releasably attach to a bone anchor. An anvil is operatively associated with the first and second arms of the housing and translatable along the longitudinal axis for facilitating the insertion of a spinal rod into the bone anchor. The anvil and each arm are positionable between an open position and a closed position. | 05-19-2011 |
20110106172 | SEMI-CONSTRAINED BONE SCREW - A bone screw for attaching a bone plate to bone includes a shank defining a lumen extending at least partially therethrough from a proximal end thereof, a head defining a lumen therethrough, and a rod member. The rod member is configured for insertion through the lumen of the head and into the lumen of the shank. The rod member is fixedly engageable with the shank and moveably coupled to the head such that both the rod member and the shank are moveable with respect to the head. | 05-05-2011 |
20110087298 | ROD REDUCTION DEVICE - A rod reduction device includes a rod reducing member, an anchoring member, and a sleeve. The rod reducing member is configured to engage a spinal rod. The anchoring member is configured to removably attach to a bone anchor. The sleeve defines a longitudinal axis and is operably associated with the rod reducing member and the anchoring member. The sleeve is rotatable with respect to the anchoring member for longitudinally translating the rod reducing member relative to the anchoring member. | 04-14-2011 |
20110087292 | OCCIPITAL FIXATION ASSEMBLY, SYSTEM AND METHOD FOR ATTACHING THE SAME - An occipital fixation assembly is provided. The occipital fixation assembly includes a first mounting plate configured for placement within a sinus cavity adjacent a rear portion of a skull of a patient. A threaded post extends from the first mounting plate. A coupling member includes an aperture configured to receive the threaded post therethrough. The coupling member includes an offset extension configured to support a surgical rod thereon. A fixation nut configured to threadably engage the threaded post of the first mounting plate is rotatable about the threaded post and translatable therealong. The fixation nut is rotatable with respect to the first mounting plate and the coupling member such that rotation of the fixation nut in a predetermined direction brings the first mounting plate and the coupling member toward one another and into secured engagement with the skull of a patient. | 04-14-2011 |
20110084108 | SURGICAL ROD SCORER AND METHOD OF USE OF THE SAME - A surgical rod scorer is provided. The surgical rod scorer includes a handle having an elongated shaft extending therefrom defining a longitudinal axis therethrough. A knob supported on a proximal end of the handle is movable about the longitudinal axis. A reciprocating member is operably disposed and translatable within the handle and the shaft of the surgical rod scorer. A drive member operably coupled to the proximal end of the reciprocating member and to the knob is configured to translate the reciprocating member along the longitudinal axis. The shaft and the reciprocating member including a respective distal end and operable head configured to support one or more cutting elements thereon. The reciprocating member including the one or more cutting elements supported thereon is translatable from a retracted position, to an extended position for scoring surgical rod. | 04-14-2011 |
20110054259 | MINIMALLY INVASIVE RETRACTOR AND METHODS OF USE - A device, system and method for orthopedic spine surgery using a novel screw-based retractor, disclosed herein, that allows for access to the spine through a minimally or less invasive approach. The retractor device is designed to be coupled to a pedicle screw and then to have opposed arms of the retractor spread apart to open the wound proximally. The retractor is removed by pulling it out of the wound whereby the retractor is deformed to pass over the pedicle screw head. The retractor is intended to be made of a stiff plastic material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed. | 03-03-2011 |
20110046675 | TRANSVERSE ROD CONNECTOR - A transverse rod connector includes an elongate member having first and second ends and first and second connection members. The first and second connection members are connected with first and second ends, respectively. The first and second connection members are configured for multidirectional positioning with respect to the elongate member. The first and second connection members are each dimensioned to be selectively and releasably secured to a bone anchor. The elongate member is longitudinally adjustable. | 02-24-2011 |
20100324609 | SINGLE ACTION ANTI-TORQUE ROD REDUCER - Provided is a novel rod reducing device for use in spinal fixation procedures. The device is capable with a single action of securely grasping the head of a bone screw while reducing a connecting rod into the head of the bone screw and while in position on the bone screw provide a cannula access for a bone screw locking cap and tightening instrument and securing the bone screw during the tightening of the locking cap so as to provide an anti-torque effect. The device is also capable of releasing from the bone screw with a reversal of the single action used to activate the device. A method of using the device and a kit wherein the device is one component is also provided. | 12-23-2010 |
20100262196 | POSTERIOR PEDICLE SCREW HAVING A TAPER LOCK - A pedicle screw construct includes a pedicle screw, a coupling, and a collet. The pedicle screw includes a shank having a helical thread formed thereon and a head at one end. The collet is positioned atop the head of the pedicle screw. The collet and pedicle screw are inserted into the coupling. The pedicle screw is rotatable and pivotable relative to the collet and coupling assembly. The collet and the coupling each have a saddle that is adapted and configured for receiving a rod member. | 10-14-2010 |
20100234888 | DYNAMIC CERVICAL PLATE - A dynamic cervical plate includes a first end section and a second end section. In embodiments, the dynamic cervical plate may include one or more middle sections positioned between the first and second end sections. Each section may be longitudinally repositionable. Each section may include a plurality of openings for receiving threaded fasteners such as a self-starting screw or a self-tapping screw. In addition, each section may include an orifice for releasably mating with a drill guide. Each of the end sections may include a notch at one end for aligning with the drill guide or fixation pins. In one embodiment, a pin is used to interconnect the sections. In other embodiments, support bars are used to limit flexure between sections. In embodiments, one or more locking elements and/or one or more support bars may operably interconnect each section. | 09-16-2010 |
20100114183 | IMPLANT INSERTION TOOL - An insertion tool for placing a spinal implant in an intervertebral space includes a handle assembly, a jaw assembly having first and second jaw members movable with respect to each other, and a holding member adapted to hold and release an implant in response to a manipulation of the handle assembly. The holding member is configured to move longitudinally with respect to the jaw assembly upon manipulation of the handle assembly. | 05-06-2010 |
20100114180 | MULTI-PLANAR, TAPER LOCK SCREW WITH ADDITIONAL LOCK - A pedicle screw construct includes a pedicle screw, a coupling, a collet, and a set screw. The pedicle screw includes a shank having a helical thread formed thereon and a head at one end. The collet is positioned atop the head of the pedicle screw. The collet and pedicle screw are inserted into the coupling. The set screw is positioned in the collet such that the set screw contacts a portion of the rod and is releasably secured to the pedicle screw via a gripping tool. The pedicle screw is rotatable and pivotable relative to the collet and coupling assembly. | 05-06-2010 |
20100114171 | MULTI-PLANAR SPINAL FIXATION ASSEMBLY WITH LOCKING ELEMENT - A spinal fixation assembly includes a spinal rod, a first spinal fixation device, and a locking element. The spinal rod defines a longitudinal axis. The first spinal fixation device includes a coupling, a screw, and a collet. The coupling has an opening extending therethrough. The screw is mounted to the coupling and positionable within a first vertebral body. The collet is receivable in the opening of the coupling and defines a saddle for engaging the spinal rod. The locking element is mounted to the spinal rod and is configured to prevent axial translation of the spinal rod in one or both directions along the longitudinal axis thereof. | 05-06-2010 |
20100114170 | MULTI-PLANAR TAPER LOCK SCREW WITH INCREASED ROD FRICTION - A spinal fixation device includes a coupling, a pedicle screw, and a collet. The coupling has an opening extending therethrough. The pedicle screw has a head mounted to a shank that is positionable within a first vertebral body. The collet is receivable in the opening of the coupling and engagable with the head of the pedicle screw. The collet is selectively positionable between a first position and a second position where the collet engages a spinal rod and prevents one or both of axial and rotational movement of the spinal rod. The collet is adapted to facilitate the connection of the spinal rod to a second vertebral body. The collet defines a saddle having one or more locking features for engaging the spinal rod. | 05-06-2010 |
20100114108 | MULTIPLANAR TAPER LOCK SCREW AND LOCK INDICATOR GAUGE - A lock indicator gauge is provided to provide an indication as to whether a bone screw construct is in a locked or an unlocked condition when the lock indicator gauge is operatively engaged with the bone screw construct. A plunger longitudinally disposed within a housing of the lock indicator gauge translates within the housing by a distance that corresponds to the relative positions of inner and outer housings of the bone screw construct, wherein the relative positions of the inner and outer housings is dependent on whether the bone screw construct is in a locked or an unlocked condition. | 05-06-2010 |
20100100131 | SPINAL BUTTRESS PLATE - A spinal buttress plate includes a body having a top surface and a bottom surface and including an annular lip, a ledge, and a pair of teeth. The annular lip defines an opening. The annular lip and the opening are adapted to engage a screw for facilitating the securement of the buttress plate to one or more vertebrae. The ledge defines an aperture. The ledge and aperture are adapted to engage an instrument for positioning the buttress plate adjacent a spinal bone graft. The teeth are disposed in spaced-apart relation on the bottom surface of the body and are positionable within the one or more vertebrae. | 04-22-2010 |
20100094358 | SPINAL STAPLE - A bone anchor assembly includes a bone fixation member and a bone screw. The bone fixation member includes at least one opening therethrough for receiving the bone screw. Two pairs of legs extend from a plate portion of the bone fixation member and are configured for insertion into bone. A lip of the opening is configured for engaging a set of threads on the bone screw such that the bone screw and the bone fixation member are affixed to one another once the bone screw is inserted through the opening of the plate portion. An installation tool for inserting the bone fixation member into bone includes a proximal region, a tubular member, a rotatable collar, and a gripping mechanism. | 04-15-2010 |
20100094357 | SEMI-CONSTRAINED SCREW AND SPINAL PLATE ASSEMBLY - A semi-constrained screw and a cervical plate assembly that engages to a cervical area of the human vertebrae system are disclosed. The semi-constrained screw and cervical plate assembly includes a cervical plate and one or more semi-constrained bone screws. Each semi-constrained bone screw includes an elongated shank, which is mechanically and releasably coupled to a head portion. The head portion includes one or more threaded segments which define one or more slits therebetween. As the semi-constrained bone screw is driven through the screw opening in the cervical plate and into the bone, the head portion allows poly-axial movement of the shank relative to the head portion. | 04-15-2010 |
20100094351 | OCCIPITAL PLATE FOR CERVICAL FIXATION - An adjustable occipital plate includes a central body portion having a plurality of arms extending therefrom in a generally Y-shaped configuration. Two of the arms include elongate slots for slidably receiving retaining members therein. Each retaining member includes a U-shaped channel for receiving a spine rod and a set screw. The central body portion and one arm include openings for receiving bone screws therein. Each of the arms may be angled with respect to the central body portion. | 04-15-2010 |
20100087925 | SPINAL INTERBODY SPACER - A spinal spacer for engagement between vertebrae includes a body extending between a substantially contoured first end surface and a second end surface to define side surfaces and opposing top and bottom vertebral engaging surfaces substantially symmetrical about a centerline axis. At least one opening defines a hollow inner body and includes first and second intersecting openings extending through the top and bottom vertebral engaging surfaces. The second intersecting opening extends through the side surfaces. The second end surface includes at least one aperture formed therethrough in communication with the hollow inner body. A screw opening is defined through at least one plate insert configured to be removably coupled to the second end surface to substantially align the screw opening with the at least one aperture. The bone screw is configured to be threadingly secured within the at least one plate insert. | 04-08-2010 |
20100036425 | ANTI-TORSION SPINE FIXATION DEVICE - An anti-torsion spine fixation device includes an elongated member spanning from one vertebra to another and connected to each vertebra. The anti-torsion spine fixation device may span more than one vertebral level, but is fixed bilaterally to the most cephalad and caudad vertebrae. | 02-11-2010 |
20090292308 | SPINAL FIXATION SYSTEM - A spinal fixation system includes a bone screw assembly, a low profile bone screw assembly, and a spinal rod. The bone screw assembly may include a separate locking structure. A laminar hook may be coupled to the rod. The spinal rod is operatively connected to the bone screw assembly and the low profile bone screw assembly. | 11-26-2009 |
20090248161 | ARTIFICIAL DISC REPLACEMENT DEVICE - An artificial disk replacement device includes opposing plate members with a pivoting assembly disposed therebetween. The pivoting assembly allows the plate members to pivot relative to each other in a first direction, but inhibit movement of the plate members in a second direction. The plate members may be installed prior to installing the pivoting assembly. An installation tool for use with the artificial disk replacement device is also disclosed. | 10-01-2009 |
20090240291 | BREACHED PEDICLE SCREW - A bone screw apparatus adapted to replace a breached pedicle screw includes a proximal end and a distal end. The bone screw apparatus also includes an unthreaded eccentric portion and a threaded proximal portion and a threaded distal portion. The threaded proximal portion extends from the proximal end to the unthreaded eccentric portion. The threaded distal portion extends from the unthreaded eccentric portion to the distal end of the bone screw. In addition, the proximal portion and the distal portion each have a major diameter and a minor diameter. | 09-24-2009 |
20090222046 | Minimally Invasive Retraction Device Having Removable Blades - A retraction device comprises at least one retracting blade and a pedicle screw. The retracting blade has a distal end having at least one projection with a passage for engaging a retention pin. The pedicle screw has a threaded body and a movable head. The movable head has at least one recess with a channel that can be aligned with the passage of the projection. | 09-03-2009 |
20090222045 | Minimally Invasive Retractor and Methods of Use - A device, system and method for orthopedic spine surgery using a novel screw-based retractor, disclosed herein, that allows for access to the spine through a minimally or less invasive approach. The retractor device is designed as a co-molded part of the tulip of a pedicle screw assembly with opposed arms of the retractor spread apart to open the wound proximally. The arms are removed by separating the arms from the tulip and removing them from the incision. The retractor device is intended to be made of a relatively stiff material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed. | 09-03-2009 |
20090222044 | Minimally Invasive Retractor Screw and Methods of Use - A device, system and method for orthopedic spine surgery using a novel screw-based retractor, disclosed herein, that allows for access to the spine through a minimally or less invasive approach. The retractor device is designed as an integrally formed part of the tulip of a pedicle screw assembly with opposed arms of the retractor spread apart to open the wound proximally. The arms are removed by separating the arms from the tulip and pulling it out of the wound. The retractor device is intended to be made of a stiff material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed. | 09-03-2009 |
20090221879 | Minimally Invasive Retractor Having Separable Blades - A device, system and method for orthopedic spine surgery using a screw-based retractor are disclosed herein and allows for access to the spine through a minimally or less invasive approach. The retractor device is designed to be coupled to a pedicle screw and then to have opposed arms of the retractor spread apart to open the wound proximally. The retractor is removed by pulling it out of the wound whereby the retractor is separated along an asymmetric stress riser to pass over the pedicle screw head. The retractor is intended to be made of a flexible metal material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed. | 09-03-2009 |
20090221878 | Minimally Invasive Retractor with Separable Blades and Methods of Use - A device, system and method for orthopedic spine surgery using a screw-based retractor, are disclosed herein and allows for access to the spine through a minimally or less invasive approach. The retractor device is designed to be coupled to a pedicle screw and then to have opposed arms of the retractor spread apart to open the wound proximally. The retractor is removed by separating the opposed blades to allow the retractor portions to be pulled out of the wound. The retractor is intended to be made of a flexible metal material, sterile packaged and disposable after one use. A system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed. | 09-03-2009 |
20090221877 | Minimally Invasive Retraction Device Having Detachable Blades - A retraction device comprises a base and at least one retracting blade. The base has at least one tab. The retracting blade has a slotted distal end for receiving the tab of the base. | 09-03-2009 |
20090204215 | EXPANDABLE VERTEBRAL DEVICE WITH CAM LOCK - An expandable cage supports adjacent vertebra in spine surgery. The expandable cage includes a first supporting member configured to engage tissue and a second supporting member operatively associated with the first supporting member. The first and second supporting members are movable relative to each other. The expandable cage further includes a cam lock mechanism configured to maintain the first and second supporting members in a fixed relative position. In another embodiment, the expandable cage includes a ring plate lock mechanism in lieu of the cam lock mechanism. The ring plate lock mechanism is adapted to maintain the first and second supporting members in a fixed relative position. | 08-13-2009 |
20090204156 | AUTOMATIC LENGTHENING BONE FIXATION DEVICE - A bone fixation device adapted to be coupled to bone anchors that allows movement of rods to permit a screw-rod construct to lengthen in response to bone growth without necessitating post surgical installation adjustment of the device. The bone fixation device includes a locking mechanism that is operably associated with a housing to allow relative movement of a rod and a housing in a first direction and inhibiting relative movement of the rod and the housing in a second direction. | 08-13-2009 |
20090105774 | ROD INSERTION INSTRUMENT AND METHOD OF USE - An insertion tool for inserting a spinal rod into a patient is provided. The insertion tool includes an upper body portion defining a first longitudinal axis, a handle assembly extending from the upper body portion, an elbow member connected to a distal end of the body portion, a lower body portion defining a second longitudinal axis, and a drive mechanism extending between the handle assembly and the lower body portion for controlling the selective engagement of the spinal rod. The lower body portion extends from the elbow and is configured to selectively engage a spinal rod. | 04-23-2009 |
20090088855 | POSTERIOR ROD CAPTURING SPACER DEVICE AND METHOD - An implantable device includes a spacing member and an elongate member. The elongate member includes a body portion having a first end coupled to the spacing member and a second end having a retention member. In a system for maintaining disc space between adjacent vertebrae, the implantable device is used in conjunction with a spine fixation member. The spine fixation member includes bone anchors and a spinal rod for releasably securing the retention member of the elongate member thereto in order to prevent expulsion of the spacing member from the disc space. Methods of using the system include unilaterally and bilaterally replacing diseased or damaged intervertebral discs from a posterior or transformational approach. | 04-02-2009 |
20090088854 | SPACING DEVICE AND METHOD - A spinal device generally includes a spacing member and a fixing member. The spacing member is configured to maintain a space between adjacent vertebrae. The fixing member is adapted to maintain a position of the spacing member relative to the adjacent vertebrae. In addition, the fixing member includes a bendable portion releasably connected to the spacing member. | 04-02-2009 |
20090088801 | SPINAL FIXATION DEVICE AND METHOD - A spinal fixation device is provided. The spinal fixation device includes first and second fixation members. Each of the fixation members include an anchor portion configured for rigid fixation to a vertebral body, an endplate member configured to engage a surface of a vertebral body, and a connecting portion connecting the anchor portion and the endplate member. The spinal fixation device further includes a spacing element configured to be received between the endplate members of the first and second fixation members | 04-02-2009 |
20090043339 | UNIVERSAL TRANSVERSE CONNECTOR DEVICE - A connecting apparatus includes a first grasping member adapted to hold a first elongated member and a second grasping member adapted to hold a second elongated member. The second grasping member is operatively connected to the first grasping member so that the first and second grasping members are movable relative to each other. The apparatus further includes a first rotatable rod disposed in mechanical cooperation with the first grasping member, a second rotatable rod disposed in mechanical cooperation with the second grasping member, a first engaging member operatively connected to the first rotatable rod, and a second engaging member operatively connected to the second rotatable rod. The first engaging member is adapted to engage at least a portion of a first pedicle screw. The second engaging member is adapted to engage at least a portion of a second pedicle screw. | 02-12-2009 |
20080300686 | PERCUTANEOUS INTERSPINOUS PROCESS DEVICE AND METHOD - A percutaneous interspinous process device for treating spinal conditions includes a first section, a second section, and a locking mechanism. The first section defines a first lateral surface, a first medial surface and a first lumen extending from the first lateral surface to the first medial surface. The second section defines a second lateral surface, a second medial surface and a second lumen extending from the second lateral surface. The locking mechanism includes an elongate member protruding from the first medial surface of the first section and a medial recess defined in the second medial surface of the second section. The medial recess is configured for securely receiving at least a portion of the elongate member. The elongate member is configured to define a space between adjacent spinous processes and maintain a predetermined distance between adjacent spinous processes. | 12-04-2008 |
20080262621 | I-BEAM SPACER - An I-beam spacer for intervertebral fusion comprises a first flange and a second flange. The first and second flanges are spaced apart from one another and have planar structures. In addition, the first and second flanges include a first outer surface and a second outer surface transverse to the support member. The first and second outer surfaces face away from each other. Also, the first and the second flanges have a first inner surface and a second inner surface transverse to the support member, wherein the first and second inner surface face toward each other. A support member is positioned between the first flange and the second flange. The support member is transverse to the first flange and the second flange. A space is formed between the first flange and the second flange. This space is adapted to receive a bone support matrix. | 10-23-2008 |
20080262318 | MINIMALLY OPEN INTERBODY ACCESS RETRACTION DEVICE AND SURGICAL METHOD - Devices, systems and methods for minimally open orthopedic spine surgery are disclosed. A first flexible screw-based retractor is designed to be coupled to each pedicle screw inserted into adjacent vertebral bodies. A retractor system is provided in which a first retractor blade is mounted to one of the screws and a second movable retractor blade is moved away from the first blade, in a medial direction, to create a working channel through which the disc space may be accessed for passing instruments and implants. Light may be incorporated into the device to illuminate the surgical field. One or all of the retractor blades may be made of a sterilizable plastic or metal and be disposable or reusable. | 10-23-2008 |