Entries |
Document | Title | Date |
20080269899 | ALLOGRAFT ANTERIOR CERVICAL PLATING SYSTEM - A method for inserting an allograft implant between adjacent cervical vertebrae to fuse the vertebrae together and a surgical kit for use therein. The kit preferably comprises an allograft implant, a plurality of bio-absorbable screws, a forceps-type implant inserter tool, a drill, a drill guide, a tapping tool, and a screwdriver. The method preferably comprises the steps of preparing a surface of a vertebra to receive an allograft plate implant, placing the implant against the surface of the vertebra, placing a drill guide against an exposed surface of the implant, inserting a drill though the drill guide and drilling a plurality of holes through the implant and into the vertebra to a predetermined depth, tapping the plurality of holes through the implant and into the vertebra to create screw threads, securing the implant to the vertebra by inserting a bio-absorbable screw into each of the plurality of holes through the implant and into the vertebra, and removing any excess portion of each screw outside of the plurality of holes. | 10-30-2008 |
20080294259 | Intervertebral prosthesis - An intervertebral prosthesis for insertion between adjacent vertebrae includes upper and lower prosthesis plates locatable against respective vertebrae and having opposing, concavely curved recesses therein, and a core located between the plates. The core has opposed, convexly curved surfaces received in the recesses of the plates to allow the plates to slide in articulated manner over the core. The opposed surfaces of the core and the recesses of the plates have cooperating spherical curvatures. The recess of each plate surrounds a locating peg projecting centrally from the base of the recess and is bounded by an annular rim, such that the annular rims of the plates are arranged to contact one another at a predetermined limit of sliding movement of the plates over the core. The peg locates loosely in an opening located centrally in a curved surface of the core, whereby the plates can slide over the core in all directions while the peg holds the core captive. | 11-27-2008 |
20080306593 | Prosthetic Spinal Disc - Disc prostheses, particularly for use in the lumbar region of the spine are provided. The disc prosthesis includes a core of elastomeric material provided within an inner component of fabric. The inner component is provided within an outer component of fabric. By providing a smooth inner contact surface between the inner component and the core, movement between the inner and outer components is facilitated in preference to movement between the inner component and core. Core abrasion is thus avoided. The use of an inner component and an outer component also means that the characteristics of each can he optimized to meet different aims. | 12-11-2008 |
20080306594 | Artificial intervertebral disc having a bored semispherical bearing with a compression locking post and retaining caps - An artificial intervertebral disc having a pair of opposing baseplates, for seating against opposing vertebral bone surfaces, uses a semispherical, bored bearing that is secured to the baseplates with compression locking posts and one or more retaining caps. The compression locking posts extend through the bearing bore and baseplate apertures such that the bearing is between the baseplates' inwardly facing surfaces. Retaining caps are attached to the compression locking posts, securing the baseplates to the bearing. Bearing surfaces on the inwardly facing side of each baseplate allow each baseplate to rotate relative to the bearing, however, rotation of each baseplate is limited by the interference of each baseplate and its respective retaining cap. Rotation of the baseplates about the longitudinal axis of the spine can be limited via a notch in the retaining caps and a groove in the baseplates, or vice versa. | 12-11-2008 |
20090012619 | Motion restoring intervertebral prosthesis with limited angular displacement - A motion restoring intervertebral prosthesis for replacing a failed or partially failed natural disc comprises two components defining an imaginary longitudinal axis generally aligned with the spinal axis when installed, the components having vertebral body engaging surfaces on one side and mating articulating surfaces on the other side, with peripheral rims encircling the articulating surfaces. The articulating surfaces accommodate rotational motion about the longitudinal axis and limited pivotal motion about the A/P and M/L planes. The rims are arranged to contact and limit the pivotal motion between the components to about +/−6° and preferably +/−4° in both directions in the M/L plane and in the A/P plane in the forward direction. Optionally, the encircling rims allow pivotal action of about 20° to 30° in the A/P plane in the rearward direction. | 01-08-2009 |
20090048674 | Artificial intervertebral disc having an articulating joint - An intervertebral device includes a first plate having an outer face and an inner face, and a second plate juxtaposed with the first plate, the second plate having an outer face, an inner face that opposes the first plate and a concavity that opposes the first plate. The device includes an elongated member extending from the first plate toward the second plate, the elongated member having a distal end with a spherical surface that is engageable with the concavity of the second plate for providing an articulating joint between the first and second plates. The device also includes a resilient member in contact with the elongated member for counteracting compressive loads on the plates, the resilient member being surrounded by the concavity of the second plate. | 02-19-2009 |
20090054986 | Motion restoring intervertebral device - A motion restoring intervertebral device includes first and second articulating components positioned between adjacent vertebrae with the articulating surface of the first component being formed by a circular domed convex projection having a first radius. The articulating surface of the second component is formed by a generally concave recess having the first radius in the medial-lateral direction and a second larger sweeping radius in the interior-posterior direction so that the components are capable of rotating against each other in all directions and translate against each other in the anterior-posterior direction, whereby translation away from the center of the first radius will produce device and joint distraction to limit excessive translation. | 02-26-2009 |
20090177284 | Intervertebral Disc - This invention relates to an intervertebral motion disc having two motion surfaces and. wherein the radius of the upper articulation surface of the core member is greater than the radius of the lower articulation surface of the core member, and wherein the first articulation surface of the core member is spherical and the second articulation surface of the core member is curved and non-spherical. | 07-09-2009 |
20090192614 | Intervertebral implant - In order, in an intervertebral implant having a core made of a swellable material and having a vertebral-body locating face on its top and/or bottom side, which is connected to the swellable core, to reduce the shearing forces between the swellable core and the vertebral-body locating face during swelling of the swellable core, it is proposed that the vertebral-body locating face comprises a plurality of support elements, which are respectively anchored adjacent to one another and individually in the core, and a plurality of mutually separate locating elements, which are disposed adjacent to one another and outside of the core and which are carried by the support elements and are movable relative to one another in the plane of the vertebral-body locating face. | 07-30-2009 |
20090210061 | ANTERIOR LUMBAR INTERBODY FUSION CAGE DEVICE AND ASSOCIATED METHOD - The present invention provides a cage device for performing spinal fusion, including: a housing defining one or more ports that is selectively disposed in an intervertebral space between adjacent vertebrae; one or more extensible retention structures that are selectively advanced out of the housing through the one or more ports and into one or more endplates of the adjacent vertebrae; and one or more actuation mechanisms for selectively advancing the one or more extensible retention structures out of the housing through the one or more ports and into the one or more endplates of the adjacent vertebrae. In one exemplary embodiment, the one or more actuation mechanisms consist of at least one worm gear/mandrel pair. The one or more extensible retention structures are selectively advanced out of the housing through the one or more ports and into the one or more endplates of the adjacent vertebrae with a rotational motion. Preferably, the one or more extensible retention structures are configured such that they may contain a bone graft. In one exemplary embodiment, the housing is selectively disposed in the intervertebral space between the adjacent vertebrae using an anterior approach. | 08-20-2009 |
20090216329 | INTERVERTEBRAL DISC REPLACEMENT AND ASSOCIATED INSTRUMENTATION - An endplate for an intervertebral prosthesis includes an inner domed region ( | 08-27-2009 |
20090222094 | DISC PROSTHESIS FOR CERVICAL VERTEBRAE - A disc prosthesis for vertebrae is provided. The disc prosthesis comprises a first plate, a first insert, a second plate, and a second insert. The first plate comprises a first active face and a first anchor face. The second plate comprises a second active face and a second anchor face. The first anchor face is configured to anchor the first plate to a first vertebra. The second anchor face is configured to anchor the second plate to a second vertebra. The first plate comprises a cavity for receiving the first insert. The cavity comprises a concave spherical cap. The second plate comprises an opening that connects the second active face to the second anchor face. The second insert comprises a fastener portion, said fastener portion is friction fit in the opening. | 09-03-2009 |
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 |
20090254184 | Spinal Arthroplasty Device and Method - An artificial spinal joint and methods for replacing at least a portion of a natural intervertebral disc are provided. In some embodiments, at least portions of facet joints are replaced along with the intervertebral disc. | 10-08-2009 |
20090281628 | APPARATUS FOR RESTORATION OF THE SPINE AND METHODS OF USE THEREOF - The subject disclosure are directed to systems, apparatuses, devices and methods for vertebral and spinal correction. In some embodiments, an expansible implant is provided which may be inserted between two vertebrae, for instance, for maintenance and/or restoration of the distance/space between vertebrae. The implant may include first and second opposed plates that are intended to move away from one another, and which engage portions of vertebrae via a recess provided for on a bearing surface of the plates. The implant may additionally include at least first and second opposed end members, where at least one of the end members includes an aperture configured for receiving at least a portion of a retaining element adapted for retaining the implant in an expanded configuration once the implant is expanded. Methods of treatment and methods of use of such implants for the alleviation of back pain (for example) are also provided herein. | 11-12-2009 |
20090292361 | INTERVERTEBRAL IMPLANT AND INSTALLATION TOOL - An intervertebral implant, an installation tool, and related methods are provided for ensuring a minimum distance between two vertebrae. The implant can comprise a pair of opposing body portions and an expansion component. The expansion component can rotate relative to the body portions in order to urge a head portion thereof against one or more inclined contact surfaces of at least one of the body portions. In this manner, the body portions can be separated, thereby increasing a height of the implant. The installation tool can comprise a plurality of components that can be moved relative to each other to facilitate expansion or contraction of the implant. | 11-26-2009 |
20090326656 | Intervertebral Prosthetic Disc - A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like. | 12-31-2009 |
20100004746 | Limited Motion Prosthetic Intervertebral Disc - A prosthetic intervertebral disc includes an upper plate and a lower plate and employs congruent stepped features to provide limited articulating motion between the plates. The stepped features can be used to provide articulating motion of a rocking type rather than a rubbing or translating type of motion provided in many artificial discs. Each of two parts of the intervertebral disc includes two or more stepped bearing surfaces, having curved or flat shapes, which mate with one another to provide the articulation to the disc. The stepped features can be designed to restrict motion in flexion-extension or lateral bending to less than a predetermined angle. The stepped design can be modified to either allow or prevent rotational motion between the plates. The limited motion disc substantially prevents translation, however some limited translation can be provided by modification of the relative sizes of the stepped features. | 01-07-2010 |
20100016971 | Adjustable Spinal Implant - An expansion assembly expands a vertebral implant. The vertebral implant has an inner cylindrical assembly adapted for insertion into an outer cylindrical assembly having an outer wall. The vertebral implant is expandable along an implant axis defined by the outer and inner cylindrical assemblies. The expansion assembly comprises an axle having proximal and distal end portions and an axle axis defined between the proximal and distal end portions. The expansion assembly further comprises a gear arranged about the axle axis at the proximal end portion of the axle and adapted to rotate about the axle axis to cause the inner cylindrical assembly to expand the vertebral implant. The engagement assembly also comprising a first engaging portion adapted to engage the inner cylindrical assembly and a second engaging portion adapted to engage the gear externally of the outer wall of the outer cylindrical assembly. | 01-21-2010 |
20100057205 | Universal Spinal Disc Implant System - A revisable intervertebral implant may include two end plates designed to detachably receive a variety of intermediate components including articulating bearing inserts, elastic inserts, and fusion blocks. Each intermediate component may be secured to a snap insert that snaps into engagement with the corresponding end plate in response to pressure urging the intermediate component toward the end plate along a cephalad-caudal direction. The end plates may first be secured to the corresponding vertebral bodies, and then the intermediate component(s) may be snapped into locking engagement with the implanted end plates to complete in-situ assembly of the intervertebral implant. The implant may easily be revised by snapping the intermediate component(s) out of engagement with the end plates, removing the intermediate component(s), inserting the new intermediate component(s) into the space between the end plates, and snapping the new intermediate component(s) into engagement with the end plates. | 03-04-2010 |
20100063591 | VERTEBRAL DISK PROSTHESIS AND SET OF ELEMENTS FOR THE CONSTITUTION OF A VERTEBRAL DISK PROSTHESIS - A prosthesis includes: an upper plate; a lower plate ( | 03-11-2010 |
20100076558 | Prosthetic Disc For Intervertebral Insertion - A prosthetic disc for insertion between adjacent vertebrae includes a core having upper and lower curved surfaces, upper and lower plates, and peripheral restraining structure on at least one of the upper plate, the lower plate and the core. Each plate has an outer surface which engages a vertebra and an inner curved surface which slides over the curved surface of the core. The peripheral restraining structure serves to hold the core against a curved surface of at least one of the plates during sliding movement of the plates over the core. | 03-25-2010 |
20100082109 | EXPANDABLE INTERVERTEBRAL IMPLANT - An expandable intervertebral implant is disclosed. The implant can include first and second members capable of being expanded upon movement of first and second wedges. The first and second wedges, while being capable of moving with respect to each other and the first and second members can also be attached to the first and second members. In addition, the first and second wedges can be capable of moving only in a first direction, while movement in a second direction can be inhibited. The first and second wedges can also be prevented from torsionally moving with respect to the first and second members. | 04-01-2010 |
20100094421 | INTERVERTEBRAL IMPLANT - The intervertebral implant is in the form of a three-dimensional structure ( | 04-15-2010 |
20100131066 | PROSTHESIS FOR BRIDGING A VERTEBRAL BODY - A prosthesis for the partial replacement of a vertebral body includes an upper contact plate for connection to an upper vertebral body, a lower contact plate for connection to a lower vertebral body and a bridging part which connects the upper and lower contact plates to one another and bridges at least one intermediate vertebral body which is located between the upper and lower vertebral bodies and is to be partially replaced. The bridging part is accommodated in a recess in the vertebral body and is secured in the recess with lateral anchoring projections which penetrate into the bone substance located on both sides of the bridging part. The cross section of the bridging part may narrow toward the rear, preferably in a trapezoid shape. | 05-27-2010 |
20100137987 | Intramedullary Repair System for Vertebra Fractures - An system for reducing a fracture in an vertebral body is disclosed herein. The system may include incremental implant elements and a delivery device. The incremental implant elements are configured for percutaneous delivery into, and accumulation within, a volume of the vertebral body. The delivery device is configured to percutaneously deliver the incremental implant elements into the volume of the vertebra body in an incremental fashion. As the incremental implant elements are incrementally delivered into the volume of the vertebra body, the accumulation of the incremental members in the volume of the vertebra body places the fracture in the vertebra body in a reduced state. | 06-03-2010 |
20100168860 | ORTHOPEDIC IMPLANT WITH FLEXIBLE KEEL - A flexible keel is provided for use as a bone anchoring element for use with a range of orthopedic implants having portions configured for anchoring into boney tissue. The flexible keel includes two wings terminating proximally in a pair of outward flares, the wings further spaced from a bone contacting implant surface by a void. The flexibility of the keel wings increases the ease of revision or explantation procedures. | 07-01-2010 |
20100191334 | INTERVERTEBRAL PROSTHESIS WITH SELF-TAPPING FIXING PROJECTIONS - An intervertebral prosthesis, in particular for the cervical spine, has two attachment plates connected in an articulated manner. The attachment surfaces of the attachment plates, which are configured for attachment to adjacent vertebral bodies have a base surface configured to bear on the surface of the vertebral bodies, and self-tapping fixing projections rising from the base surface. These fixing projections are formed by at least one pair of ribs which extend in opposite directions obliquely with respect to a predetermined implantation direction and whose side faces oriented more away from the implantation direction are steeper than their side faces oriented more in the implantation direction. The ribs can be toothed. | 07-29-2010 |
20100211176 | FIXATION DEVICE AND METHOD - An implantable orthopedic stability device is disclosed. The device can have a contracted and an expanded configuration. A method of using the device between adjacent vertebral body surfaces surfaces for support and/or fixation of either or both of the adjacent vertebrae is also disclosed. | 08-19-2010 |
20100241231 | INTERVERTEBRAL FIXATION DEVICE - Described herein are low profile, vertebral body fixation systems that join together adjacent vertebrae to stabilize a portion of a spine and provide anterior to posterior, inferior to superior and side to side rotational control. An embodiment of the intervertebral fixation device includes an interbody element sized to be positioned between first and second adjacent vertebrae, an intravertebral body element that comprises a portion that extends into a vertebral body of the first vertebra; and a fixation element that engages the vertebral body of the first vertebra and that also engages the portion of the intravertebral body element that extends into the vertebral body of the first vertebra. | 09-23-2010 |
20100292799 | Method for Inserting and Positioning an Artificial Disc - A method for inserting an intervertebral artificial disc is provided with the intervertebral disc including a first endplate having a plurality of protrusions for attaching to an adjacent vertebrae and an extension portion extending towards a second adjacent vertebrae. A second endplate is provided with a plurality of protrusions for attaching to a second adjacent vertebrae and an extension portion extending towards the first adjacent vertebrae. A flexible member having an upper portion and a lower portion and a slider plate positioned within the upper portion of the flexible member is also provided. The extension portion of the first endplate is adapted to fit within a first cavity in the upper portion of the flexible member and the extension portion of the second endplate is adapted to fit within a second cavity in the lower portion of the flexible member. | 11-18-2010 |
20100324684 | Spinal Prosthetic Joints - A method for correcting spondylolisthesis from the lateral approach is provided in which a pair of insertion members are inserted laterally into upper and lower vertebrae, a connecting member is affixed to the insertion members, and a rotating force is applied to the connecting member to encourage the upper and lower vertebrae into a desired position relative to one another. | 12-23-2010 |
20110022177 | INTERVERTEBRAL FILLING FOR CERVICAL VERTEBRAE - An intervertebral filling for cervical vertebrae end-plates includes a supporting body, and a buffer layer surrounding the supporting body. The supporting body has a Shore A hardness of 50-80 and the buffer layer has a Shore A hardness of 20-45. The supporting body has a height greater than that of the buffer layer, so that the supporting body protrudes about 1 mm to 3 mm from the buffer layer at two opposite ends thereof. | 01-27-2011 |
20110046739 | Methods and Apparatuses for Bone Restoration - Methods and apparatuses for restoration of human or animal bone anatomy, which may include introduction, into a bone of an expansible implant capable of expansion in a single determined plane, positioning the expansible implant in the bone in order to correspond the single determined plane with a bone restoration plane and opening out the expansible implant in the bone restoration plane. A first support surface and a second support surface spread tissues within bone. The embodiments of the invention may also include injecting a filling material around the implant. | 02-24-2011 |
20110112644 | DISC PROSTHETIC IMPLANT DEVICE - An intervertebral prosthetic implant device is described. The device includes a first plate with an axis support for supporting a rolling element substantially separate from the remainder of the first plate, designed to allow rolling of the rolling element. The device also includes a second plate that includes a groove designed to accommodate the rolling element, facilitating rotating and rolling motion of the second plate with respect to the first plate by rolling over the rolling element. | 05-12-2011 |
20110257747 | KIT FOR CONSTRUCTING A SPINAL DISK PROSTHESIS, AND SYSTEM FOR CONSTRUCTING DIFFERENT SPINAL DISK PROSTHESES - The invention relates to a kit for constructing a spinal disk prosthesis provided for arrangement in a spinal disk compartment limited by vertebral bodies, comprising two prosthesis plates ( | 10-20-2011 |
20110319997 | Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations. | 12-29-2011 |
20120035729 | Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations. | 02-09-2012 |
20120209384 | Vertebral body replacement - The present invention involves a system and methods for assembling and implanting a vertebral body implant. The vertebral body implant includes, but is not necessarily limited to, an expandable core body and endplates that can be attached at both ends. Endplates of various shapes, sizes and angles are attachable to the expandable core so that a suitable vertebral body implant can be implanted between vertebrae. | 08-16-2012 |
20120239148 | IMPLANTABLE SPINAL DISK - Spinal disk including a shell, first endplate, second endplate and core. The shell includes sidewalls, back wall, front wall, top wall and bottom wall defining a compartment. The first endplate includes a first base, first top and first attachment. The first base is retained in the compartment. The first top is disposed about a first opening in the top wall forming a top contact surface. The first attachment extends from the first top portion. The second endplate includes a second base, second top and second attachment. The second base is retained in the compartment. The second top is disposed about a second opening in the bottom wall forming a bottom contact surface. The second attachment extends from the second top portion. The core is disposed in the compartment between the first endplate and the second endplate. | 09-20-2012 |
20120271420 | DISTRACTABLE SPINAL IMPLANT ASSEMBLY - A spinal implant assembly includes a housing for containing a bearing member therein and seating within an intervertebral space and a bearing member disposed within the housing for enabling disc-like movement between vertebrae defining the intervertebral space. A method of inserting the spinal implant assembly into the intervertebral space includes the steps of inserting the spinal implant assembly into the intervertebral space and then distracting the spinal implant assembly from a first condition in which the spinal implant assembly is floatable into the intervertebral space to a second condition in which the assembly is distracted to fixedly engage opposing vertebral services defining the intervertebral space. | 10-25-2012 |
20130013069 | INTERVERTEBRAL PROSTHETIC DISC - A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like. | 01-10-2013 |
20130073043 | Spinal Implant With Elliptical Articulatory Interface - A spinal implant prosthesis includes a pair of end plates for affixation to adjacent vertebral bone structures and respectively defining inter-engaged convex and concave articulatory surfaces of elliptical profile. These elliptical articulatory surfaces are elongated in an anterior-posterior direction, and are comparatively shorter in a medial-lateral direction. With this configuration, in response to angular displacement and/or axial rotation, the elliptical surfaces displace in a manner increasing the distance between the adjacent vertebral bone structures, thereby tensioning the prosthesis and producing counteracting forces which urge the components back toward a substantially centered or neutral position. In addition, in the preferred form, the anterior-posterior length of the concave articulatory surface in incrementally greater than the anterior-posterior length of the convex articulatory surface to accommodate a limited range of anterior-posterior translation. | 03-21-2013 |
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 |
20130218275 | ELASTOMERIC ARTIFICIAL JOINTS AND INTERVERTEBRAL PROSTHESIS SYSTEMS - An elastomeric artificial joint and prosthesis system combining motion preservation and shock absorption through the interaction of core and endplate components. The core is comprised of: a “hub” having congruent concavity with the endplate surface allowing for rotation, translation, flexion and extension, orbital, lateral bending, and compression motion similar to that of a joint or natural intervertebral disc; a “flange” attached to the hub and able to move congruently with the hub, and having negative spaces providing an internal structure for an elastomer; and a bio-compatible elastomer casted around and through the flange providing shock absorption. The endplate has a low-friction surface and engages the elastomer, and a structural component that engages the vertebral endplate or bone surface. The device has medical applications such as in total joint arthroplasty, disc replacement, and industrial applications such as in robotics that are modeled to move similar to human anatomical motion. | 08-22-2013 |
20130226299 | INTERVERTEBRAL DISC REPLACEMENT - Instrumentation for implanting a cervical disc replacement device includes cervical disc replacement trials for determining the appropriate size of replacement device to be implanted, an insertion plate for maintaining the elements of the replacement device in fixed relation to one another for simultaneous manipulation, an insertion handle for attachment to the insertion plate for manipulation of the elements, an insertion pusher for releasing the insertion handle from the insertion plate, a drill guide that cooperates with the insertion plate to guide the drilling of tap holes for bone screws to be placed through bone screw holes in the flanges of the replacement device, clips that are applied to the flanges after placement of the bone screws to resist screw backout, and a clip applicator for applying the clips to the flanges. | 08-29-2013 |
20130253648 | INTERVERTEBRAL DISC PROSTHESIS - An intervertebral disk prosthesis comprising at least three parts is disclosed. Some embodiments comprise a first plate, a second plate, and a core, the upper surface of the core in contact with at least part of the lower surface of the upper plate and the lower surface of the core in contact with at least part of the upper surface of the lower plate, and the lower plate movable at least with respect to the core. Some embodiments comprise cooperation means to limit or eliminate translation movements of the core with respect to the lower plate along an axis substantially parallel to the lower plate, and to limit or eliminate rotation movements of the core with respect to the lower plate, around an axis substantially perpendicular to the lower plate, the planes passing through the upper is and lower plates forming a substantially constant angle. | 09-26-2013 |
20130274880 | ANATOMY ACCOMODATING PROSTHETIC INTERVERTEBRAL DISC WITH LOWER HEIGHT - An intervertebral disc includes a superior endplate having an upper vertebral contacting surface and a lower bearing surface, wherein the upper vertebral contacting surface of the superior endplate has a central portion that is raised relative to a peripheral portion of the superior endplate, and wherein the lower bearing surface has a concavity disposed opposite the raised central portion. The disc includes an inferior endplate having a lower vertebral contacting surface and an upper surface, wherein the lower vertebral contacting surface of the inferior endplate has a central portion and wherein the upper bearing surface has a concavity disposed opposite the central portion. A core is positioned between the upper and inferior endplates, the core having upper and lower core bearing surfaces configured to mate with the bearing surfaces of the upper and inferior endplates. The upper vertebral contacting surface of the superior endplate has a different shape than the lower vertebral contacting surface of the inferior endplate. | 10-17-2013 |
20130304210 | Total Disc Implant - A total disc implant (TDI) is provided for total replacement of a spinal disc or discs in a human patient or other mammal, wherein the TDI is designed to maintain a substantially full range of natural motion (ROM) following implantation. The TDI generally comprises, in one preferred form, upper and lower end plates for affixation to adjacent vertebral bodies, with an intervening insert disposed therebetween. The end plates each include elongated part-cylindrical surfaces oriented generally perpendicular to each other, with one of said surfaces extending in an anterior-posterior direction and the other extending in a medial-lateral direction. The intervening insert defines concave upper and lower part-cylindrical seats oriented for respectively engaging these part-cylindrical surfaces, wherein these part-cylindrical seats are defined by offset radii to include a somewhat flattened central base region merging smoothly with upwardly curving radiused sides. | 11-14-2013 |
20130304211 | INTERVERTEBRAL MEDICAL IMPLANT - The invention relates to a spinal implant composed of a plurality of parallel plates. The deliberate introduction of contours in the plates allows for the creation of biomechanically advantageous functions and adjustment options. The elasticity of the anchoring elements enables the disclosed implant to be adjusted to the osseous endplates, resulting in uniform force distribution and thus prevention of the risk of compaction or endplate compression fracture. The plate structure allows for the use of production methods in which hook-like undercut contours can be created, thus enabling the implant to be superbly anchored in the bone without causing damage thereto. Furthermore, the plates can be interconnected by an actuator in such a way that the height and/or the angular position can be adjusted. The vertical adjustment can vary along the length of the implant such that the segment can also be angularly adjusted. | 11-14-2013 |
20130310936 | BILATERALLY PLACED DISC PROSTHESIS FOR SPINAL IMPLANT AND METHOD OF BILATERAL PLACEMENT - A spinal prosthesis for insertion bilaterally into an annulotomy hole created laterally in a spinal disc between two abutting vertebrae that is composed of a first elongated member having first threading at one end and an end cap at its other end, a second elongated member having an end cap with a threaded hole fixed to one end of a hollow tube open-ended at its other end. The members are telescoped together with the threading of the first member mated with the threaded hole of the second member and the open end of said hollow tube disengageably engaged with the end cap of the first member for rotation together. A method for bilaterally implanting the members of the prosthesis using a wire, and then telescopically mating them. | 11-21-2013 |
20130310937 | Spinal Implants for Rotationally Adjusting Vertebrae - A spinal implant adapted to be positioned within a disc space between adjacent vertebrae includes a first intradiscal element, a second intradiscal element, and a coupling mechanism. The first and second intradiscal elements include respective first and second outer surfaces adapted to be positioned adjacent an endplate of respective first and second adjacent vertebrae. The first and second intradiscal elements further include respective first and second medial surfaces that are opposite the respective first and second outer surfaces, where the second medial surface is adapted to generally face the first medial surface upon assembly of the first intradiscal element with the second intradiscal element. The coupling mechanism is associated with the first and second medial surfaces and is adapted to provide relative rotational movement between the first and second intradiscal elements in a plane generally parallel with the first and second medial surfaces. | 11-21-2013 |
20130310938 | CORPORECTOMY IMPLANT - This Implant ( | 11-21-2013 |
20130317615 | METHODS AND APPARATUS FOR VERTEBRAL BODY DISTRACTION AND FUSION EMPLOYING FLEXURE MEMBERS - Improved methods and apparatuses for vertebral body distraction and fusion in accordance with various embodiments of the present invention employ flexure members. Flexure members connect a plurality of structural members to end plates on one end and blocks on another end. Upon insertion into the disc space, a drive screw or similar mechanism can be actuated to drive expansion blocks closer together, which causes flexure members to deflect, resulting in expansion of the structural members and distraction of the end plates. The distracted device can then remain in the body and be used for vertebral body fusion. | 11-28-2013 |
20130317616 | Insertion Instrument for an Intervertebral Implant - In an insertion instrument for a three-piece intervertebral implant that includes an upper part that can be placed against a vertebra, a lower part that can be placed against the adjacent vertebra, and a pivot element that can be inserted between these two parts, the instrument having two arms, disposed side by side and supported pivotably relative to one another on one end, which at their free ends each have one retention device for the upper part and lower part, respectively, of the intervertebral implant, it is proposed that a longitudinal guide for the pivot element is disposed in one of the arms. | 11-28-2013 |
20130331943 | VERTEBRAL BODY REPLACEMENT - The present invention involves a system and methods for assembling and implanting a vertebral body implant. The vertebral body implant includes, but is not necessarily limited to, an expandable core body and endplates that can be attached at both ends. Endplates of various shapes, sizes and angles are attachable to the expandable core so that a suitable vertebral body implant can be implanted between vertebrae. | 12-12-2013 |
20130345812 | INTERVERTEBRAL SPACER DEVICE HAVING A CIRCUMFERENTIALLY BURIED WIRE MESH ENDPLATE ATTACHMENT DEVICE - An artificial disc having a pair of opposing baseplates, for seating against opposing vertebral bone surfaces, separated by a ball and socket joint that includes a solid ball mounted to protrude from one of the baseplates. The ball is captured within a curvate socket formed in a peak of a convex structure integral with the other of the baseplates. The socket is formed by opposing curvate pockets, one on the convex structure and one on a retaining cap that is secured to the other of the baseplates. The ball rotates and angulates in the socket. The ball and socket joint therefore permits the baseplates to rotate and angulate relative to one another. | 12-26-2013 |
20140018921 | Intervertebral Device Having Expandable Endplates - An intervertebral implant having an endplate that can be slidably expanded following its placement in the intervertebral space. The endplate comprises a pair of planks that are slidably received within respective recesses of a base portion of the endplate. During insertion of the implant into the intervertebral space, the planks are set in a contracted position within respective recesses of a base portion of the endplate. This provides the implant with a relatively small profile that is suitable for MIS procedures. Once the implant has been inserted, the planks are slid outward from the recesses to an expanded position that increases the footprint of the implant endplate. This expansion increases the stability of the implant. | 01-16-2014 |
20140031936 | Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube. | 01-30-2014 |
20140039622 | Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In an exemplary embodiment, the present invention provides an intervertebral implant. The intervertebral implant may be configured to transition from a collapsed configuration having a first height and a first width to an expanded configuration having a second height and a second width. | 02-06-2014 |
20140052251 | Transforaminal Prosthetic Spinal Disc Replacement - An intervertebral implant includes a first endplate having a first surface configured to substantially engage with a first vertebral body and a second surface having an extension with a concave contact surface, the concave contact surface being spaced apart from the second surface. The implant further includes a second endplate having a first surface configured to substantially engage with a second vertebral body and a second surface comprising a convex contact surface, and the second endplate having first and second side rails positioned along and above the second surface defining a first and second arcuate slots on opposing sides of the second surface. A plate connecting the first and second endplates is also provided. | 02-20-2014 |
20140052252 | Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube. | 02-20-2014 |
20140052253 | Expandable Interbody Spacer - The present invention relates to devices and methods for treating one or more damaged, diseased, or traumatized portions of the spine, including intervertebral discs, to reduce or eliminate associated back pain. In one or more embodiments, the present invention relates to an expandable interbody spacer. The expandable interbody spacer may comprise a first jointed arm comprising a plurality of links pivotally coupled end to end. The expandable interbody spacer further may comprise a second jointed arm comprising a plurality of links pivotally coupled end to end. The first jointed arm and the second jointed arm may be interconnected at a proximal end of the expandable interbody spacer. The first jointed arm and the second jointed arm may be interconnected at a distal end of the expandable interbody spacer. | 02-20-2014 |
20140052254 | Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations. | 02-20-2014 |
20140067067 | ARTIFICIAL CERVICAL AND LUMBAR DISCS, DISC PLATE INSERTION GUN FOR PERFORMING SEQUENTIAL SINGLE PLATE INTERVERTEBRAL IMPLANTATION ENABLING SYMMETRIC BI-DISC PLATE ALIGNMENT FOR INTERPLATE MOBILE CORE PLACEMENT - An artificial replacement disc includes a pair of substantially parallel plates formed to occupy a space defined by vertebral endplates, each of the plates including a plurality of spikes on a first surface and a concave trough formed on a second surface opposite of the first surface. A mobile core includes a core rim with opposing convex surfaces extending from opposite sides of the core rim, the mobile core being capable of being disposed between the pair of plates to permit the vertebral endplates to move relative to one another. The spikes on each of the plates extend substantially away from the mobile core and the convex surfaces are formed to integrally fit within the concave trough of at least one of the plates. The core rim limits lateral movement of the mobile core relative to the parallel plates. One or more insertion tools for inserting and implanting the replacement disc are also described. | 03-06-2014 |
20140088708 | Expandable Vertebral Implant - The present invention relates to an expandable implant for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device. | 03-27-2014 |
20140094916 | Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In an exemplary embodiment, the present invention provides an intervertebral implant. The intervertebral implant may be configured to transition from a collapsed configuration having a first height and a first width to an expanded configuration having a second height and a second width. | 04-03-2014 |
20140100658 | ARTICULATING INTERVERTEBRAL IMPLANT - An intervertebral disc implant for use in the spine includes a superior endplate and an inferior endplate. The superior endplate is configured to articulate about the inferior endplate in an anterior-posterior direction during flexion and extension. The superior endplate is further configured to axially rotate about the inferior endplate during axial rotation, and is further configured to articulate about the inferior endplate along a medial-lateral direction during lateral bending. During axial rotation, the superior endplate is induced to articulate about the inferior endplate along the medial-lateral direction. During lateral bending, the superior endplate is induced to axially rotate about the inferior endplate. | 04-10-2014 |
20140128976 | PROSTHETIC DISC FOR INTERVERTEBRAL INSERTION - A prosthetic disc for insertion between adjacent vertebrae includes a core having upper and lower curved surfaces, upper and lower plates, and peripheral restraining structure on at least one of the upper plate, the lower plate and the core. Each plate has an outer surface which engages a vertebra and an inner curved surface which slides over the curved surface of the core. The peripheral restraining structure serves to hold the core against a curved surface of at least one of the plates during sliding movement of the plates over the core. | 05-08-2014 |
20140142701 | Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube. | 05-22-2014 |
20140156006 | Vertebral Body Replacement - The present invention involves a system and methods for assembling and implanting a vertebral body implant. The vertebral body implant includes, but is not necessarily limited to, an expandable core body and endplates that can be attached at both ends. Endplates of various shapes, sizes and angles are attachable to the expandable core in a plurality of positions so that a suitable vertebral body implant can be implanted between vertebrae from an anterior, anterior-lateral, lateral, posterior or posterior-lateral approach. | 06-05-2014 |
20140163682 | Expandable Vertebral Implant - A joint spacer therapeutically maintains separation of bones of a joint. A carriage is slideably retained within the frame and has at least one ramped surface. An actuator screw is threadably engaged with the frame, and rotatably connected to the carriage, to cause the carriage to slideably move within the frame when the actuator screw is rotated. First and second endplates engage the bones of the joint, and each has at least one ramped surface that is mateable with the ramped surface of the carriage, whereby when the carriage is slideably moved by rotation of the actuator screw, the endplates ramped surface slides against the carriage ramped surface to cause the endplates to move along an axis transverse to the longitudinal axis of the frame, to increase the height of the spacer. Piercing elements are connected to the carriage to pierce bone of the joint when the carriage is moved. | 06-12-2014 |
20140163683 | Expandable Vertebral Implant - A joint spacer therapeutically maintains separation of bones of a joint. A carriage is slideably retained within the frame and has at least one ramped surface. An actuator screw is threadably engaged with the frame, and rotatably connected to the carriage, to cause the carriage to slideably move within the frame when the actuator screw is rotated. First and second endplates engage the bones of the joint, and each has at least one ramped surface that is mateable with the ramped surface of the carriage, whereby when the carriage is slideably moved by rotation of the actuator screw, the endplates ramped surface slides against the carriage ramped surface to cause the endplates to move along an axis transverse to the longitudinal axis of the frame, to increase the height of the spacer. Piercing elements are connected to the carriage to pierce bone of the joint when the carriage is moved. | 06-12-2014 |
20140172100 | MULTI-LOBE ARTIFICIAL SPINE JOINT - An artificial disc is provided which more closely matches the movement of the natural spine. The artificial disc uses one or more projections and corresponding recesses to provide a sliding articulation. The artificial joint is inherently stable in that compressive forces placed on the disc such as the weight placed upon the joint or the tension of surrounding tissues urges the joint towards a neutral position and not farther away from a neutral position. | 06-19-2014 |
20140194991 | STABLE DEVICE FOR INTERVERTEBRAL DISTRACTION AND FUSION - Improved methods and apparatuses for vertebral body distraction and fusion in accordance with various embodiments employ mechanisms for stabilizing a device so that the device can stay in the body and stably support the disc space during vertebral fusion following distraction of the adjacent vertebra by operation of the device. The device is inserted into the disc space and distracted from a compressed configuration to an expanded configuration to distract the disc space. Mechanisms for stabilizing the device in the expanded configuration constrain the device to zero degrees of freedom of movement to allow the device to stably support the disc space. A bone growth stimulant for promoting vertebral fusion can be inserted into an open space defined by the device, which continues to stably support the disc space during vertebral fusion. | 07-10-2014 |
20140222151 | VERTEBRAL BODY REPLACEMENT DEVICE AND METHOD FOR USE TO MAINTAIN A SPACE BETWEEN TWO VERTEBRAL BODIES WITHIN A SPINE - A vertebral body replacement device includes a body member and a central rod member having two threaded portions and configured to be operatively associated with the body member. The device also includes a first end member and a second end member with the end members configured to threadingly engage the threaded portions of the central rod member. The body member and the two end members are further constructed to inhibit rotational movement of the two end members when the device is positioned within a space within a spine as the two end members will engage the adjacent respective vertebral bodies following rotational actuation of the central rod member causing the end members to move in an axial direction relative to the body member, thereby allowing the two end members to apply a force to the two vertebral bodies. A surgical instrument and method for using the device are also disclosed. | 08-07-2014 |
20140236296 | EXPANDABLE FUSION DEVICE FOR POSITIONING BETWEEN ADJACENT VERTEBRAL BODIES - In some embodiments, system and/or method may include an intervertebral implant for a human spine including an upper body, a lower body, first and second expansion members, and an expansion mechanism. A superior surface of the upper body may function to engage a first vertebra of the human spine. An inferior surface of the lower body may function to engage a second vertebra of the human spine. The first expansion member may include at least a first angled portion positionable, during use, between the upper body and the lower body. The second expansion member may include at least a second angled portion positionable, during use, between the upper body and the lower body. An expansion mechanism may convey, during use, the first and second angled portions in opposing directions increasing a separation distance between the upper body and the lower body. | 08-21-2014 |
20140236297 | Expandable Fusion Device and Method Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations. | 08-21-2014 |
20140236298 | EXPANDABLE INTERBODY FUSION DEVICE WITH GRAFT CHAMBERS - An expandable interbody fusion device includes superior and inferior plates that are configured to receive a sequentially inserted stack of expansion members or wafers in interlocking engagement. The superior and inferior plates have openings therethrough in communication with aligned holes through the wafers for receipt and containment of bone graft to promote fusion between opposing vertebral bodies. One of said superior and inferior endplates has a multi-contoured opening extending therethrough. | 08-21-2014 |
20140249628 | Articulating Expandable Intervertebral Implant - A spacer for separating bones of a joint, the spacer includes a frame having a longitudinal axis, and ramped surfaces. An endplate configured to engage a bone of the joint has ramped surfaces mateable with the ramped surfaces of the frame. When the endplate is moved relative to the frame in a direction along the longitudinal axis of the frame, the endplate is moved in a direction away from the frame to increase the height of the spacer. A second endplate configured to engage a second bone of the joint can be similarly configured. | 09-04-2014 |
20140249629 | ZERO-PROFILE EXPANDABLE INTERVERTEBRAL SPACER DEVICES FOR DISTRACTION AND SPINAL FUSION AND A UNIVERSAL TOOL FOR THEIR PLACEMENT AND EXPANSION - A unique, universal Zero-Profile Expandable Intervertebral Spacer (ZP-EIS) device for fusion and distraction throughout the entire spine is provided which can be inserted via anterior, anterolateral, lateral, far lateral or posterior surgical approaches dependent on the need and preference. Multiple ZP-EIS embodiments each with unique mechanisms of calibrated expansion are provided. Two of these embodiments incorporate bi-directional fixating transvertebral (BDFT) screws and five other embodiments do not incorporate BDFT screws. A tool for implantation into the intervertebral device and calibrated device expansion is also disclosed. | 09-04-2014 |
20140257484 | INTERVERTEBRAL IMPLANT - An adjustable spinal fusion intervertebral implant including upper and lower body portions each having proximal and distal surfaces at proximal and distal ends thereof. The implant can include a proximal wedge member disposed at the proximal ends of the respective ones of the upper and lower body portions, and a distal wedge member disposed at the distal ends of the respective ones of the upper and lower body portions. First and second linkages can connect the upper and lower body portions. Rotation of an actuator shaft can cause the distal and proximal wedge members to be drawn together such that longitudinal movement of the distal wedge member against the distal surfaces and the longitudinal movement of the proximal wedge member against the proximal surfaces causes separation of the upper and lower body portions. | 09-11-2014 |
20140257485 | EXPANDABLE INTERVERTEBRAL IMPLANT - An expandable intervertebral implant includes a front wall, a back wall spaced apart from the front wall, and two side walls connecting the front wall and the back wall at their respective ends. The walls define a space. The implant further includes a bottom face, a top face, at least one engagement member with an engagement surface for engagement with the end plate of a vertebral body, a first adjusting element and a second adjusting element which are supported by a first support member and a second support member, respectively, and which cooperate with the respective support member such that the engagement member is reciprocally movable between a first end position and a second end position. In the first end position, the engagement surface does not project beyond the bottom face or the top face and in the second end position, the engagement surface at least partially projects outwardly beyond the bottom face or the top face. The first and the second support members are coupled by a coupling mechanism. | 09-11-2014 |
20140257486 | EXPANDABLE IMPLANT - An expandable implant system is disclosed in which the system comprises an implant with: (1) top and bottom plates, (2) ramp surfaces formed on inner surfaces of the plates, and (3) an expansion member situated between the plates. An actuator also forms part of the system, the actuator being removable from between the top and bottom plates after implantation of the implant. The expansion member has a set of angled surfaces for mating with the ramp surfaces of the plates and, upon movement of the expansion member along a longitudinal axis of the implant, the top and bottom plates expand from a first dimension to a second greater dimension. The top and bottom plates are also securable at varying angles to one another depending on the amount of movement of the expansion member along the ramp surfaces. | 09-11-2014 |
20140277471 | Expandable Intervertebral Implant - An implant for therapeutically separating bones of a joint has two endplates each having an opening through the endplate, and at least one ramped surface on a side opposite a bone engaging side. A frame is slideably connected to the endplates to enable the endplates to move relative to each other at an angle with respect to the longitudinal axis of the implant, in sliding connection with the frame. An actuator screw is rotatably connected to the frame. A carriage forms an open area aligned with the openings in the endplates. The openings in the endplates pass through the carriage to form an unimpeded passage from bone to bone of the joint. The carriage has ramps which mate with the ramped surfaces of the endplates, wherein when the carriage is moved by rotation of the actuator screw, the endplates move closer or farther apart. | 09-18-2014 |
20140277472 | Expandable Intervertebral Implant - An implant for therapeutically separating bones of a joint has two endplates each having an opening through the endplate, and at least one ramped surface on a side opposite a bone engaging side. A frame is slideably connected to the endplates to enable the endplates to move relative to each other at an angle with respect to the longitudinal axis of the implant, in sliding connection with the frame. An actuator screw is rotatably connected to the frame. A carriage forms an open area aligned with the openings in the endplates. The openings in the endplates pass through the carriage to form an unimpeded passage from bone to bone of the joint. The carriage has ramps which mate with the ramped surfaces of the endplates, wherein when the carriage is moved by rotation of the actuator screw, the endplates move closer or farther apart. | 09-18-2014 |
20140277473 | SYSTEMS AND METHODS FOR INSERTING AN EXPANDABLE INTERVERTEBRAL DEVICE - An expandable interbody device for implantation within an intervertebral space is provided, together with methods and tools for use therewith. The interbody devices of the present invention include upper and lower bearing members configured to expand via an expansion mechanism configured to allow the insertion of osteoconductive materials and other structures into the interior of the interbody device before and after implantation, and before and after expansion of the interbody device. The insertion tool is configured expand the interbody device and to allow insertion of materials into the interbody device through a protected pathway. | 09-18-2014 |
20140277474 | EXPANDABLE INTER-BODY FUSION DEVICES AND METHODS - An expandable inter-body fusion device is presented. The expandable inter-body fusion device can have a first plate, a second plate, and an insert positioned substantially therebetween the first plate and the second plate. The first plate, the second plate, and the insert define an interior cavity. Moving the insert longitudinally with respect to the first and second plates increases or decreases the distance of the first plate with respect to the second plate, effectively expanding the inter-body fusion device and increasing the volume of the interior cavity. | 09-18-2014 |
20140277475 | INTERVERTEBRAL PROSTHETIC DISC - A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like. | 09-18-2014 |
20140288652 | Expandable implant for the spinal column - The invention relates to an expandable implant with an upper plate ( | 09-25-2014 |
20140303731 | Expandable Fusion Device and Method of Installation Thereof - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations. | 10-09-2014 |
20140324171 | Expandable Fusion Device and Method of Installation Thereof - Two or more expandable fusion devices are capable of being installed inside an intervertebral disc space. The devices may be implanted at varying heights to maintain disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, two implants are implanted into the intervertebral disc space and then expanded or contracted to different heights. | 10-30-2014 |
20140336764 | EXPANDABLE SPINAL FUSION CAGE - A device, system, and method for performing a spinal procedure. The device includes first and second shape-memory outer platforms, the outer platforms expanding at a temperature greater than the transformative temperature, a core member having first and second expansion bodies and first and second wedge members, the first expansion body being coupled to the first outer platform and the second expansion body being coupled to the second outer platform, and a screw rotatably disposed within the core member, the screw passing through at least a portion of each of the first and second wedge members. Rotation of the screw causes the first and second wedge members to move toward each other and the first and second expansion bodies to move away from each other. Thus, reaching a transformation temperature and rotating the screw expands the device to come in contact with and anchored against both of the adjacent vertebrae. | 11-13-2014 |
20140336765 | ANATOMY ACCOMODATING PROSTHETIC INTERVERTEBRAL DISC WITH LOWER HEIGHT - An intervertebral disc includes a superior endplate having an upper vertebral contacting surface and a lower bearing surface, wherein the upper vertebral contacting surface of the superior endplate has a central portion that is raised relative to a peripheral portion of the superior endplate, and wherein the lower bearing surface has a concavity disposed opposite the raised central portion. The disc includes an inferior endplate having a lower vertebral contacting surface and an upper surface, wherein the lower vertebral contacting surface of the inferior endplate has a central portion and wherein the upper bearing surface has a concavity disposed opposite the central portion. A core is positioned between the upper and inferior endplates, the core having upper and lower core bearing surfaces configured to mate with the bearing surfaces of the upper and inferior endplates. The upper vertebral contacting surface of the superior endplate has a different shape than the lower vertebral contacting surface of the inferior endplate. | 11-13-2014 |
20140336766 | EXPANDABLE INTERBODY FUSION DEVICE - An expandable interbody fusion device includes superior and inferior plates that are configured to receive a sequentially inserted stack of expansion members or wafers. The superior and inferior plates include features that at least initially interlock the two plates until the superior plate is dislodged by pressure from the growing wafer stack. The wafers include features on their top and bottom surfaces that interlock the wafers in multiple degrees of freedom so that the wafer stack is not disrupted when the fusion device is fully expanded. Each wafer also includes features that interlock with the inferior plate until the wafer id dislodged by sequential introduction of another wafer. | 11-13-2014 |
20140343677 | Intervertebral devices and related methods - Intervertebral devices and systems, and methods of their use, are disclosed having configurations suitable for placement between two adjacent vertebrae, replacing the functionality of the disc therebetween. Intervertebral devices and systems contemplated herein are implantable devices intended for replacement of a vertebral disc, which may have deteriorated due to disease for example. The intervertebral devices and systems are configured to allow for ample placement of therapeutic agents therein, including bone growth enhancement material, which may lead to better fusion between adjacent vertebral bones. The intervertebral devices and systems are configured for use in minimally invasive procedures, if desired. | 11-20-2014 |
20140364950 | METHOD AND INSERTER FOR INTERBODY FUSION - An elongate inserter has a distal end releasably connected to an expandable interbody fusion device and a proximal end including a trigger actuator. The interbody fusion device comprises a superior endplate and an inferior endplate that are movable in an expansion direction relative to each other in the intradiscal space. The inserter includes a lifting platform and an elevator that define cooperatively engaging ramps and ramps surfaces that upon operation of the trigger actuator cause the superior and inferior endplates to move relatively away from each other. A driver is supported by the inserter for pushing an insert into the expanded device between the superior and inferior endplates. | 12-11-2014 |
20140371857 | INTERVERTEBRAL IMPLANT - An intervertebral implant includes opposing upper and lower endplates that are configured to engage respective vertebral surfaces in an intervertebral space. The implant carries a plurality of bone fixation spikes that extend out from each endplate. The spikes define a plurality of outer surfaces that extend from a base to a tip. The spikes are laterally staggered, and have a height that increases along a longitudinal direction from the front toward the rear of the implant, and a define recess formed in at least one outer surfaces. | 12-18-2014 |
20140371858 | INTERVERTEBRAL DISC - This invention relates to an intervertebral motion disc having two motion surfaces and. wherein the radius of the upper articulation surface of the core member is greater than the radius of the lower articulation surface of the core member, and wherein the first articulation surface of the core member is spherical and the second articulation surface of the core member is curved and non-spherical. | 12-18-2014 |
20150012097 | SYSTEM AMD METHOD FOR AN EXPANDABLE INTERVERTEBRAL IMPLANT - An expandable intervertebral implant includes a base body, a top endplate and a center component. The top endplate is configured to be placed onto an open top of the base body and to expand upward. The top endplate includes a plate, first and second side protrusions extending vertically downward from first and second sides of the plate, respectively, first and second protrusions including inclined surfaces and extending obliquely downward from a first end of the plate and third and fourth protrusions having a triangular shape with at least one inclined surface and extending downward from a second end of the plate. The center component is configured to be placed within the base body and to interface with the top endplate and to move longitudinally forward or backward within the base body, thereby causing the top endplate to expand upwards or move downward, respectively. | 01-08-2015 |
20150012098 | METHODS AND APPARATUS FOR IMPLANTING AN INTERBODY DEVICE - An interbody implant comprises one or more elongate members that have superior and inferior surfaces with a height, and medial and lateral surfaces having a width. The height is set so the implant fits into the intervertebral space. The width is less than the height. The interbody implant has a first configuration, a second configuration, and a third configuration. The interbody implant is inserted into the intervertebral space in the first configuration such that medial and lateral surfaces contact the vertebral bodies, and the interbody implant is then actuated into the second configuration such that superior and inferior surfaces engage the vertebral bodies. Actuation of the implant from the first configuration to the second configuration distracts the vertebral bodies. The implant is actuated into the third configuration where the width of the implant is greater than width of the implant in the first or the second configuration. | 01-08-2015 |
20150018950 | FLEXURE LIMITER FOR SPINAL PROSTHESIS - Apparatus including a first spinal prosthetic member that may articulate with a second spinal prosthetic member, the first and second spinal prosthetic members flexing relative to one another about a lateral-medial axis corresponding to a lateral-medial axis of a body, and a flexure limiting member attached to the first and second spinal prosthetic members that limits flexure about the lateral-medial axis. | 01-15-2015 |
20150018951 | Orthopedic Implant with Adjustable Angle between Tissue Contact Surfaces - An implant having a base with a first contact surface and a hinged element, hingedly interconnected with a first portion of the base, providing a second contact surface. The first portion of the base is displaceable relative to a second portion so that the base can be shortened from an initial length towards a second length. A linking segment is hingedly connected to both the second portion of the base and to the hinged element so that shortening of the base causes the linking segment to push a region of the hinged element away from the base, thereby changing an angle of the second contact surface relative to the first contact surface. | 01-15-2015 |
20150018952 | LATERAL INTERBODY FUSION DEVICES, SYSTEMS AND METHODS - According to some embodiments, a method of inserting a lateral implant within an intervertebral space defined between an upper vertebral member and a lower vertebral member includes creating a lateral passage through a subject in order to provide minimally invasive access to the intervertebral space, at least partially clearing out native tissue of the subject within and/or near the intervertebral space, positioning a base plate within the intervertebral space, wherein the base plate comprise an upper base plate and a lower base plate and advancing an implant between the upper base plate and the lower base plate so that the implant is urged into the intervertebral space and the upper vertebral member is distracted relative to the lower vertebral member. | 01-15-2015 |
20150018953 | MINIMALLY INVASIVE CORPECTOMY CAGE AND INSTRUMENT - An assembly comprising an expandable corpectomy cage and an insertion instrument, wherein the expandable cage comprises an instrument attachment features, including mating holes on the sides of the outer sleeve, and a ball-shaped pocket on the endplate of the inner sleeve, and the insertion instrument features a tuning-fork shaped holder, which attaches to the mating holes on the implant's outer sleeve using small bosses which mate with the holes under the spring tension of the fork, and a lever with a spherical end that mates with the ball-shaped pocket in the inner sleeve endplate. | 01-15-2015 |
20150025633 | Expandable Vertebral Implant - An expandable implant for engagement between vertebrae includes an inner member, an outer member, and a gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The inner member includes a longitudinal groove configured to engage a pin extending through the outer member such that the pin prevents the inner member from translating completely through the outer member and aids in alignment and limits rotation of the second endplate. Portions of the implant may be provided with a series of markings such that when the markings are aligned, the implant is aligned in a specific configuration and for a specific implantation approach. | 01-22-2015 |
20150025634 | EXPANDABLE IMPLANT FOR THE SPINAL COLUMN - The invention relates to an expandable implant ( | 01-22-2015 |
20150032209 | INTERVERTEBRAL DISC PROSTHESIS - This disclosure relates to an intervertebral disc prostheses that comprise at least three pieces including an upper plate, a lower plate, and a mobile core, the upper surface of the core being in contact with at least a part of the lower surface of the upper plate, limit stops allowing friction to be limited, while limiting or preventing the movements of the core relative to the lower plate, in translation and in rotation, respectively, along an axis substantially parallel to the lower plate and about an axis substantially perpendicular to the lower plate. Instrumentation for insertion of the prostheses into intervertebral spaces is also described. | 01-29-2015 |
20150039089 | Artificial Disc Devices and Related Methods of Use - An artificial disc is disclosed. The artificial disc may include a superior endplate having a bi-convex superior surface and a concave inferior surface, and an inferior endplate having a bi-convex inferior surface. The artificial disc may also include a core assembly disposed between the superior endplate and the inferior endplate, and a support assembly disposed on outer surfaces of both the superior endplate and the inferior endplate. The support assembly may be configured to couple the superior endplate to the inferior endplate. | 02-05-2015 |
20150039090 | SYSTEMS AND METHODS FOR VERTEBRAL DISC REPLACEMENT - The present invention provides artificial disc prostheses, methods and instrumentation for implantation and revision thereof. Each prosthesis may comprise superior and inferior end plates and a nucleus positioned between articular surfaces of the end plates. The end plates may have planar bone engagement surfaces with a plurality of self-cutting teeth. The articular surfaces of the end plates may be planar or include a flattened portion. The nucleus includes superior and inferior articular surfaces which may comprise flattened portions such that when the articular surfaces of the nucleus and the end plates are placed in cooperation in a preferred orientation, the flattened and/or planar portions are aligned. Each prosthesis may provide flexion/extension, anterior/posterior translation, lateral bending, and/or axial rotation degrees of freedom. One embodiment comprises a prosthesis with a first joint providing flexion/extension and anterior/posterior translation, and a second joint providing lateral bending and axial rotation. | 02-05-2015 |
20150045890 | INTERVERTEBRAL DISC PROSTHESIS MADE FROM THERMOPLASTIC MATERIAL HAVING GRADUATED MECHANICAL PROPERTIES - An intervertebral disc prosthesis comprises a structure having a rigid upper plate, a rigid lower plate, and a core inserted between said plates, the structure being made from thermoplastic material, the core further comprising a thermoplastic monomaterial having graduated elastic and damping properties. According to one alternative, the core is composed of an elastomeric central nucleus surrounded by one or more rings which are referred to as rings having ranks j relative to the core, and which are more rigid. | 02-12-2015 |
20150045891 | EXPANDABLE INTERBODY IMPLANT AND METHOD - An intervertebral implant that can be surgically introduced between adjacent vertebrae and expanded in situ to occupy an optimal space between the vertebrae. The implant is inserted into the evacuated disc space obliquely and then oriented so as to extend laterally across the anterior adjacent vertebrae with its outer ends of the implant supported by the cortical rims on the opposite sides of the vertebrae. The implant has two body members with a space therebetween so the implant may be then distracted and a spacer of predetermined thickness that may be inserted within the space between the body members so as to maintain a desired amount of distraction. The upper and lower surfaces of the implant may have a desired lordotic angle. A method of using an implant is disclosed which permits endoscopic visualization of the disc space. | 02-12-2015 |
20150057753 | EXPANDABLE SPINAL IMPLANT - An expandable spinal implant configured for positioning within a space between adjacent vertebral bodies includes an upper body, a lower body, and first and second pins. The lower body is adapted to slidably receive the upper body. Grooves are disposed on opposing side surfaces of the upper body, and grooves are disposed on an inner surface of a bore defined through the lower body. Corresponding first and second apertures are defined through an end surface of the lower body thereby permitting advancement of the first and second pins within the first and second apertures, grooves of the lower body, and a corresponding pair of grooves of the upper body to secure the position of the upper body relative to the lower body. A method of performing spinal surgery is also disclosed. | 02-26-2015 |
20150066145 | EXPANDABLE AND ADJUSTABLE LORDOSIS INTERBODY FUSION SYSTEM - An expandable housing for an interbody fusion system has movable tapered external helical threaded members that travel along tracking to operably engage against the top and bottom shell members, urging them apart to cause expansion in the height of the housing. In an embodiment, the tapered members are disposed in a dual arrangement such that independent engagement of the tapered members along lateral portions of the top and bottom shells cause an angular tilt to the exterior surface of the housing when the tapered members are moved to different degrees. This function permits adjustment in the angular relationship between adjacent vertebrae and assists the lordotic adjustment of the patient's spine. When the functions of the device are used in combination by the surgeon, the device provides an effective tool for in situ adjustment when performing lateral lumbar interbody fusion. | 03-05-2015 |
20150073552 | STAGED, BILATERALLY EXPANDABLE TRIAL - Systems and methods for distracting an intervertebral disc space are provided. The systems use a staged, bilaterally expandable trial. The systems and methods of distracting an intervertebral space are provided in a manner that addresses the problem of subsidence. The method includes inserting the trial into the intervertebral space in a collapsed state and, once inserted, the trial is then used for distracting the intervertebral space using an expansion that includes a first stage and a second stage. The first stage includes expanding the trial laterally toward the peripheral zones of the top vertebral plate and the bottom vertebral plate, and the second stage includes expanding the trial vertically to distract the intervertebral space. | 03-12-2015 |
20150073553 | EXPANDABLE INTERBODY FUSION DEVICE - An expandable interbody fusion device includes superior and inferior endplates that are configured to receive a sequentially inserted stack of interlocking expansion members or wafers. The like-configured wafers include features on their top and bottom surfaces that interlock the wafers in multiple degrees of freedom so that the wafer stack is not disrupted when the fusion device is fully expanded. One of the interlocking features includes a plurality of prongs projecting from an upper surface of the wafers and into a recess defined in the lower surface of an adjacent previously inserted like-configured wafer. The prongs and recesses are configured to prevent retrograde movement of each new wafer in a direction opposite the direction of insertion. Other interlocking features prevent movement in the direction of insertion, transverse to the insertion direction and vertically within the stack. | 03-12-2015 |
20150081021 | INTERVERTEBRAL IMPLANT, INSTRUMENT FOR USE IN PLACING IT - An intervertebral implant includes first and second implant bodies, which extend along a longitudinal direction of the implant, and a threaded member. The bodies include first and second proximal and distal ends movable longitudinally relative to each other. The threaded member is rotatably seated in the first implant body and has a proximal end accessible from outside the implant. | 03-19-2015 |
20150081022 | INSERT FOR INSERTION INTO AN EXPANDABLE SPINAL INTERBODY FUSION DEVICE - An expandable interbody fusion device includes superior and inferior endplates that are configured to receive a sequentially inserted stack of expansion members or wafers in interlocking engagement. The expansion members are formed to each have a generally U-shaped rearward facing opening. The superior and inferior endplates have openings through their outer surfaces in at least partial alignment and communication with the rearward facing openings of the expansion members. The inferior endplate has a fully bounded cavity for telescoping receipt of the superior endplate. The inferior endplate also has a fully bounded channel extending through the rear endwall thereof in direct communication with the rearward facing opening of at least one expansion member for the receipt of bone graft material into the device to promote fusion between opposing vertebral bodies of the spine. | 03-19-2015 |
20150088258 | Methods and Apparatuses for Vertebral Body Distraction and Fusion Employing a Coaxial Screw Gear Sleeve Mechanism - Improved methods and apparatuses for vertebral body distraction and fusion in accordance with various embodiments of the present invention employ one or more coaxial screw gear sleeve mechanisms. In various embodiments, coaxial screw gear sleeve mechanisms include a post with a threaded exterior surface and a corresponding sleeve configured to surround the post, the corresponding sleeve having a threaded interior surface configured to interface with the threaded exterior surface of the post and a geared exterior surface. A drive mechanism can be configured to interface with the geared exterior surface of the sleeve, causing the device to distract. | 03-26-2015 |
20150094812 | EXPANDABLE INTERVERTEBRAL IMPLANT - An expandable intervertebral implant is provided for insertion into an intervertebral space defined by adjacent vertebrae. The expandable intervertebral implant includes a pair of outer sleeve portions and an inner core disposed between the outer sleeve portions. Movement of the inner core relative to the outer sleeve portions causes the outers sleeve portions to deflect away from each other, thereby engaging the expandable intervertebral implant with the vertebrae and adjusting the height of the intervertebral space. | 04-02-2015 |
20150094813 | EXPANDABLE IMPLANT - An expandable implant for inserting within a skeletal space is provided, and a method for using the implant to expand the skeletal space. The implant is preferably designed to be inserted into an intervertebral space to replace at least part of an intervertebral disc between adjacent vertebral bodies. The expandable implant contains at least one first expansion compartment and at least one second expansion compartments, which compartments can be inflatable balloons that are inflated by a catheter. Inflating the first expansion compartment expands the implant in a first direction and inflating the second expansion compartment expands the implant in a second direction. | 04-02-2015 |
20150100124 | EXPANDABLE SPINAL IMPLANT - An expandable implant device ( | 04-09-2015 |
20150100125 | EXPANDABLE ANTERIOR LUMBAR INTERBODY FUSION DEVICE - An expandable anterior lumbar interbody fusion device comprises a deformable monolithic body having posterior and anterior ends, an upper bone contact structure and a lower bone contact structure. The body is expandable along a height axis between a first smaller height to a second larger height. The body comprises a pair of opposed side structures, each including a translatable center section being movable in a direction transverse to the height axis, a first locator arm adjacent the posterior end, a second locator arm adjacent the anterior end and a pair of formable load-bearing columns supported by the upper bone contact structure, the lower bone contact structure and the center section. The columns are not formed at the first height but are operative upon expansion of the body to the second height to form load-bearing columns along the height axis between the upper and lower bone contact structures. | 04-09-2015 |
20150112437 | Intervertebral devices and related methods - Intervertebral devices and systems, and methods of their use, are disclosed having configurations suitable for placement between two adjacent vertebrae, replacing the functionality of the disc therebetween. Intervertebral devices and systems contemplated herein are implantable devices intended for replacement of a vertebral disc, which may have deteriorated due to disease for example. The intervertebral devices and systems are configured to allow for ample placement of therapeutic agents therein, including bone growth enhancement material, which may lead to better fusion between adjacent vertebral bones. The intervertebral devices and systems are configured for use in minimally invasive procedures, if desired. | 04-23-2015 |
20150134062 | SPINE SURGERY METHOD AND INSERTER - A surgical inserter for use in inserting an implant into a vertebral space may include: (a) a handle; (b) a gripper having one end attached to the handle and a second end having a pair of arms; and (c) a grip activator having an opening that threadingly receives the gripper. The grip activator can be rotated in a first direction with respect to the gripper to cause the arms to move toward each other to grip the inserter and in a second direction with respect to the gripper to cause the arms to move away from each other to release the inserter. In one embodiment a compression force activator is used to deploy the implant and in another embodiment a tension force activator is used to deploy the implant. | 05-14-2015 |
20150148906 | STRUCTURALLY SUPPORTING INSERT FOR SPINAL FUSION CAGE - An expandable implant includes a structural insert to provide a robust connection between an insertion instrument and the expandable implant. The structural insert can be made from a different material than the remainder of the implant to withstand compressive, tensile, shear, and torsional loads which may be present while inserting the implant into a patient. The structural insert may be formed as part of a bottom member of the implant or may be a separate element inserted into the implant body. The structural insert may provide a threaded connection to an insertion instrument. The expandable implant may include a bone graft port in fluid communication with a bone graft opening extending through the implant body. | 05-28-2015 |
20150289988 | ADJUSTABLE DISTRACTION CAGE WITH LINKED LOCKING MECHANISMS - A spinal implant which is configured to be deployed between adjacent vertebral bodies. The implant has at least one extendable support element with a retracted configuration to facilitate deployment of the implant and an extended configuration so as to expand the implant and effectively distract the disc space, stabilize the motion segments and eliminate pathologic spine motion. The implant has a minimal dimension in its unexpanded state that is smaller than the dimensions of the neuroforamen through which it typically passes to be deployed within the intervertebral space. The implant is provided with a locking system having a plurality of linked locking elements that work in unison to lock the implant in an extended configuration. Bone engaging anchors also may be provided to ensure secure positioning. | 10-15-2015 |
20150335444 | Elastomeric Artificial Joints and Intervertebral Prosthesis Systems - An elastomeric artificial joint and prosthesis system combining motion preservation and shock absorption through the interaction of core and endplate components. The core is comprised of: a “hub” having congruent concavity with the endplate surface allowing for rotation, translation, flexion and extension, orbital, lateral bending, and compression motion similar to that of a joint or natural intervertebral disc; a “flange” attached to the hub and able to move congruently with the hub, and having negative spaces providing an internal structure for an elastomer; and a bio-compatible elastomer casted around and through the flange providing shock absorption. The endplate has a low-friction surface and engages the elastomer, and a structural component that engages the vertebral endplate or bone surface. The device has medical applications such as in total joint arthroplasty, disc replacement, and industrial applications such as in robotics that are modeled to move similar to human anatomical motion. | 11-26-2015 |
20150342748 | Spinal Implant Device - A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or unexpanding the device. | 12-03-2015 |
20150342751 | EXPANDABLE VERTEBRAL IMPLANT - Expandable implants for engagement between vertebrae generally include an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device. | 12-03-2015 |
20150374507 | EXPANDABLE SPINAL INTERBODY AND INTRAVERTEBRAL BODY DEVICES - A device for insertion into a spinal (intervertebral or intravertebral) space is expandable and contractable. The device includes a body assembly, a top member configured to fit within a gap in the body assembly, a drive gear disposed within the body assembly at a distal end of the body assembly, a proximal gear assembly, and a distal gear assembly. The drive gear includes a receiver accessible from outside the body assembly and configured to be rotated in order to rotate the drive gear. Each gear assembly is attached to the top member. The distal gear assembly engages the drive gear. Rotation of the drive gear in a first direction causes the gear assemblies to translate the top member away from the body assembly, and rotation of the drive gear in a second direction causes the gear assemblies to translate the top member towards the body assembly. | 12-31-2015 |
20160015522 | SPINAL CAGE - A spinal cage includes first and second spinal attachment members attachable to vertebrae, the first and second spinal attachment members articulating with one another by means of an articulation joint, and a wedge element arranged for wedging between the first and second spinal attachment members. An actuator is linked to the wedge element for moving the wedge element axially with respect to the first and second spinal attachment members. The actuator includes a threaded member adjacent the wedge element and a biasing device positioned between at least one of the first and second spinal attachment members and the wedge element. Upon turning of the threaded member, the wedge element is advanced with respect to the articulation joint so that the first and second spinal attachment members are tilted or parallel to each other. The biasing device applies a biasing force on the wedge element to move the wedge element axially. | 01-21-2016 |
20160015529 | Expandable Interbody Spacer - An expandable intervertebral spacer includes a body, a proximal end, and a distal end. The body includes quadrants that form a substantially cylindrical shape in a first configuration and a substantially cuboidal shape in a second configuration. Each quadrant includes a ramp portion with a ramp and a landing and a sliding portion with a sliding side and a foot. The ramp portion of a first quadrant engages the sliding portion of a second quadrant. The proximal end and the distal end couple with the plurality of quadrants and transfer an actuating force to expand the body from the first configuration to the second configuration. | 01-21-2016 |
20160030192 | Articulating Disc Implant - An intervertebral disc implant for use in the spine including a first part and a second part, wherein the first part and second part are configured as a joint prosthesis for the spine. The first part includes one of a concave or convex articulating surface and the second part includes one of the other concave or convex articulating surface. One of the concave or convex articulating surfaces is preferably elliptically shaped in at least one direction and does not match and is different than one of the other concave or convex articulating surfaces. | 02-04-2016 |
20160030193 | ARTIFICIAL DISC REPLACEMENTS WITH NATURAL KINEMATICS - This invention improves upon prior art total disc replacements (TDRs) by more closely replicating the kinematics of a natural disc. The preferred embodiments feature two or more fixed centers of rotation (CORs) and an optional variable COR (VCOR) as the artificial disk replacement (ADR) translates from a fixed posterior COR that lies posterior to the COR of the TDR to facilitate normal disc motion. The use of two or more CORs allows more flexion and more extension than permitted by the facet joints and the artificial facet (AF). AF joint-like components may also be incorporated into the design to restrict excessive translation, rotation, and/or lateral bending. | 02-04-2016 |
20160045327 | EXPANDABLE VERTEBRAL BODY REPLACEMENT DEVICE, SYSTEM, AND METHODS - An expandable vertebral body replacement is presented. The device has an inner and outer housing longitudinally moveable on one-another which locks in place using a retention member. This can be locked or fortified by several described options. Also presented is a method for expanding said device embodiments and a system for an expandable vertebral body replacement. | 02-18-2016 |
20160045329 | SPACERLESS ARTIFICIAL DISC REPLACEMENTS - Spacerless artificial disc replacements (ADR) are disclosed. One preferred embodiment includes two saddle-shaped components to facilitate more normal spinal flexion, extension, and lateral bending while limit axial rotation, thereby protecting the facet joints and the annulus fibrosus (AF). Either or both of the superior and inferior components are made of a hard material such as chrome cobalt, titanium, or a ceramic including alumina, zirconia, or calcium phosphate. The articulating surfaces of the ADR are also preferably highly polished to reduce friction between the components. Metals, alloys or other materials with shape-memory characteristics may also prove beneficial. | 02-18-2016 |
20160045330 | ARTIFICIAL DISC DEVICES AND RELATED METHODS OF USE - An artificial disc is disclosed. The artificial disc may include a superior endplate having a bi-convex superior surface and a concave inferior surface, and an inferior endplate having a bi-convex inferior surface. The artificial disc may also include a core assembly disposed between the superior endplate and the inferior endplate, and a support assembly disposed on outer surfaces of both the superior endplate and the inferior endplate. The support assembly may be configured to couple the superior endplate to the inferior endplate. | 02-18-2016 |
20160051374 | Vertebral Implants and Related Methods of Use - A vertebral insert may include a first linkage, a second linkage, and a third linkage. The first, second, and third linkages may at least partially defining a cavity. The insert may be movable between a collapsed configuration and an expanded configuration, and the movement of the first and second linkages with respect to one another may be configured to reciprocally move the insert between the collapsed and expanded configurations. | 02-25-2016 |
20160067056 | SPINAL IMPLANT SYSTEM AND METHOD - A spinal implant comprises a body including a first vertebral engaging surface and a second vertebral engaging surface. The first vertebral engaging surface is rotatable relative to the second vertebral engaging surface. Systems and methods are disclosed. | 03-10-2016 |
20160081817 | INTERVERTEBRAL DISC AND INSERTION METHODS THEREFOR - A method of inserting an intervertebral disc implant into a disc space includes accessing a spinal segment having a first vertebral body, a second vertebral body and a disc space between the first and second vertebral bodies. The method includes securing a first pin to the first vertebral body and a second pin to the second vertebral body, using the first and second pins for distracting the disc space, and providing an inserter holding the intervertebral disc implant. The method also desirably includes engaging the inserter with the first and second pins, and advancing the inserter toward the disc space for inserting the intervertebral disc implant into the disc space, whereby the first and second pins align and guide the inserter toward the disc space. | 03-24-2016 |
20160100955 | SPINAL IMPLANT SYSTEM AND METHOD - A spinal implant has a first member defining a longitudinal axis. A second member includes an axial cavity configured for disposal of the first member. A third member is rotatable relative to the first member and defines a transverse cavity. A locking element is disposable in the transverse cavity and engageable with the first member to fix the third member relative to the first member. Systems and methods of use are disclosed. | 04-14-2016 |
20160113776 | SPINAL IMPLANT SYSTEM AND METHOD - A spinal implant comprises a first member and a second member. A rotatable element defines an axis and is engageable to rotate the members about the axis. An actuator is rotatable for translating a part thereof to move the members between a first, contracted configuration and a second, expanded configuration. Systems and methods of use are disclosed. | 04-28-2016 |
20160120657 | SYSTEMS AND APPARATUSES FOR SECURING AN IMPLANT IN INTERVERTEBRAL SPACE - Systems and tools for inserting and securing an implant within the intervertebral space. An intervertebral disc implant with upper and lower bearing members with an articulation interface between the members for providing relative motion therebetween. The implant may be provided with various securing members for fixing the implant within the intervertebral space. A tool may be used to insert the implant, which includes a plurality of shiftable implant engaging members that are shiftable between non-engaging and engaging configurations to alternatively release or hold the implant. | 05-05-2016 |
20160135966 | EXPANDABLE FUSION DEVICE AND METHOD OF INSTALLATION THEREOF - The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations. | 05-19-2016 |
20160158025 | ADJUSTABLE TOTAL DISC REPLACEMENT DEVICE - Disclosed is an implantable artificial intervertebral disc joint replacement device for implantation between adjacent vertebral bodies. The device allows selective positioning of a disc implant element and comprises translatable surfaces, a mechanism for translation, a means for bone attachment, and an integrated disc implant. The device can be used in the lumbar, thoracic, and cervical regions of the spine in single or multi-level configurations. When implanted in a patient, the device includes an upper (cranial) component and a lower (caudal) component attached to the vertebral body above and below the replaced intervertebral disc respectively, with the joint implant integrated into the translatable surfaces. Following implantation, precise positioning of the joint implant within the intervertebral space with respect to the spinal axis is then adjusted based upon the particular anatomical and functional needs of the individual patient to satisfy spinal range of motion and stability requirements. | 06-09-2016 |
20160166403 | Transforaminal Prosthetic Spinal Disc Apparatus | 06-16-2016 |
20160250035 | PROSTHETIC DISC FOR INTERVERTEBRAL INSERTION | 09-01-2016 |
20160250036 | METHODS AND APPARATUS FOR INTERVERTEBRAL DISC PROSTHESIS INSERTION | 09-01-2016 |
20170231777 | INTERVERTEBRAL PROSTHETIC DISC WITH SHOCK ABSORPTION CORE | 08-17-2017 |
20190142607 | Intervertebral Disc And Insertion Methods Therefor | 05-16-2019 |