Depuy Spine, Inc.

Depuy Acromed, Inc.

Depuy Synthes Products, Inc.

Depuy Orthopaedics, Inc.

Depuy Spine Sarl

Depay Spine, Inc.

Ian Charles Burgess

George Joseph Ross

Missoum Moumene

William Dunbar

Lutz Biedermann

Wilfried Matthis

John Riley Hawkins

SeungKyu Daniel Kwak

Amie R Borgstrom

Frank S Bono

Robert Labrom

Christopher W Sicvol

Hassan A Serhan

Michael S Varieur

William L Dunbar, Jr

Christopher Rybicki

Christopher Werner Sicvol

Felix G Quevedo

Matthew Parsons

Chris Rybicki

Ron Sacher

A spinal anchor assembly for securing a spinal fixation element has an anchor element adapted for attachment to bone. The anchor element has an opening for receiving a spinal fixation element and side walls on opposed sides of the opening with a plurality of inferior surfaces defined on the side walls. A twist-lock closure closes the opening and captures the spinal fixation element. A locking element can be provided on the closure element and the anchor element. The locking element can be configured so that when the closure element is rotated from the open position to the closed position, the locking element engages to deter the closure element from twisting back to the open position.

Locking cap assembly for spinal fixation instrumentation

Spinal rod approximator for seating a stabilizing rod in a rod-receiving portion of a spinal implant and inserting closure mechanism is provided. In one embodiment, a spinal rod approximator is provided including a body with gripping branches, inserter shaft, threaded collar, and outer sleeve.

Spinal rod approximator

A method of implanting an intervertebral disc prosthesis in a patient comprises selecting a superior and inferior endplates from a plurality of endplates having different endplate features. The different endplate features include different structural and material composition features. In addition, a core is selected from a plurality of cores having different core features such as different structural and material composition features. In one embodiment, the core is a composite core comprised of a first material and a different second material. After the endplates and core are selected, the intervertebral disc prosthesis is assembled with the selected core positioned between the selected endplates. The assembled intervertebral disc prosthesis is then positioned on an insertion tool and implanted in the patient.

Intervertebral disc prosthesis

Various methods and devices are provided for stabilizing the posterior elements of the spine, and more preferably methods and devices are provided for sharing the load with the intervertebral disc, the facet joints, the ligaments, and the muscles of the spinal column. In certain exemplary embodiments, methods and devices are provided for substantially controlling or providing resistance to movement, e.g., flexion, extension, lateral bending, and/or axial rotation, of the adjacent vertebrae.

Multi-level posterior dynamic stabilization systems and methods

Posterior dynamic stabilization cross connectors

Spinal rod approximator for seating a stabilizing rod in a rod-receiving portion of a spinal implant and inserting a closure mechanism is provided. In one embodiment, a spinal rod approximator is provided including a body with gripping branches, inserter shaft, threaded collar, and outer sleeve. The cylindrical outer sleeve is disposed about the distal end portion of the body and is movable between a first position and a second position in which the outer sleeve inhibits separation of the gripping branches.

Spinal rod approximators

Various methods and devices are provided for stabilizing the posterior elements of the spine, and more preferably methods and devices are provided for sharing the load with the intervertebral disc, the facet joints, the ligaments, and the muscles of the spinal column. In certain exemplary embodiments, methods and devices are provided for substantially controlling or providing resistance to movement, including flexion, extension, lateral bending, and axial rotation, of the adjacent vertebrae.

Posterior dynamic stabilization systems and methods

Posterior dynamic stabilization x-device

A rod reduction device is provided having a reduction nut adapted to mate to the rod-receiving portion of a spinal implant, and a driver tool that is effective to engage the reduction nut such that rotation of the driver tool rotates the reduction nut to reduce a rod positioned between the reduction nut and within the rod-receiving head of a spinal implant into the rod-seating portion of the head of the spinal implant. The driver tool can include a supportformed on a distal end thereof that is adapted to be disposed within the rod-receiving head of a spinal implant to prevent the rod-receiving head of the implant from collapsing during use of the rod reduction device.

Rod reduction nut and driver tool

A spinal anchor assembly for securing a fixation element includes an anchor element and a twist-in cap. The anchor element is configured for attachment to a bone, typically by comprising a mono- or polyaxial screw or hook, and includes a proximal portion having an open slot for receiving the fixation element and having radially inwardly protruding flange segments. The twist-in cap is received in and closes the open slot. The proximal portion of the anchor and the cap are adapted to twist-lock together by a partial rotation of the cap from an open position to a closed position to cover the slot so as to capture the fixation element and to lock the cap in the closed position.

An assembly such as an anchor screw, bone plate, offset hook, post, transverse connector or other spinal anchor for anchoring to bone and clamping a linkage such as a rod, wire cable or the like. The assembly has a top member with an open slot to receive the linkage, and a twist-lock closure cap to close the open end, capturing the linkage in the slot. One closure cap fits over and around the top member, with a set of segmented protrusions that extend through a corresponding set of protruding flange segments spaced about the circumference of the top member. The cap is configured to rotate and lock against the top member like a flange-locking bayonet mount when turned through a limited degree of rotation. Slots may be provided through the face of the closure cap allowing reduction tabs to project through the cap, and the locking cap may be adapted to a range of screw, eye, hook, post, connector and other anchor assemblies to securely clamp the linkage by use of a rotation tool disposed along an access path aligned with the axis of the screw, thus requiring no lateral clearance along the longitudinal direction of the linkage element. Locking is effected by a set screw that passes through the cap and tightens against the linkage to firmly immobilize it in the anchor assembly. Another cap embodiment fits into the center of the head with a partial twist locking motion. Opposed locking surfaces prevent slippage in the radial direction, and a sloping contact floor surface may apply torque to further increase pressure on urge mating detent features in an adjacent wall.

A transverse connector for a spinal column corrective device for interconnecting two components connectable with vertebrae of a spinal column includes a first member having a body portion and a connector portion extending from the body portion, the connector portion including an opening for receiving the first component, a second member having a body portion and a connector portion extending from the body portion, the connector portion including an opening for receiving the second component, and a clamp extending between the first and second member body portions, the clamp being movable into a tightened position to lock the first and second members into position relative to one another, and a loosened position to permit adjustment of the position of the first and second members relative to one another. The first and second member body portions having mating retaining surfaces to prevent relative movement between the first and second members when the clamp is in the tightened position.

Growing community of inventors

Raynham, MA, United States of America

Ian Charles Burgess