Depuy Synthes Products, Inc.

Depuy Spine, Inc.

Depuy Acromed, Inc.

Depuy Acroned, Inc.

Andrew Dooris

Christopher Rogers

Hassan A Serhan

Mark Lionetto

Michael J O'Neil

John Riley Hawkins

Alexander D Grinberg

Ronald J Naughton

Patrick Fatyol

Douglas Raymond

Jonathan P Fanger

Jonathan Bellas

Robert D Fraser

Derek Shaw

Mark Gracia

Leigh W Potter

J Riley Hawkins

Jeffrey Karl Sutton

Michael D Sorrenti

Matthew Parsons

Melissa Grace

Missoum Moumene

Michael J O'NEIL

The present invention concerns several fusion devices and methods for laterally inserting a fusion device at an initial trajectory that is not parallel to the disc space. Each fusion device incorporates components that enable flexing, bending or pivoting of the device during its final approach to the prepared disc space.

Multi-segment lateral cages adapted to flex substantially in the coronal plane

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.

Intervertebral disc

Multi-segment lateral cage adapted to flex substantially in the coronal plane

A bone anchor assembly includes a bone anchor having a proximal head and a distal shaft configured to engage bone, a receiver member for receiving a spinal fixation element to be coupled to the bone anchor, an insert positioned in the proximal end of the receiver member having a pair of spaced apart insert arms defining a recess therebetween, and a closure mechanism positionable between and engaging the insert arms to capture a spinal fixation element within the recess of the insert and fix the spinal fixation element with respect to the receiver member.

Bone anchor assemblies and methods of manufacturing and use thereof

A facet joint prosthesis for replacing a facet joint comprising superior and inferior facets, the prosthesis comprising:

Prosthetic facet joint ligament

A method of removing a nucleus pulposus from an intervertebral disc, involving rotating a distal end head of an instrument so that flexible protrusions thereon will cut nucleus pulposus native material.

Annular nucleus pulposus replacement

An intervertebral disc prosthesis comprises a superior endplate, an inferior endplate, and an intermediate core positioned between the endplates. The core comprises a central disc portion and a radial flange. The central disc portion of the core is defined by a superior bearing surface and inferior bearing surface. The radial flange of the core includes a first portion that extends radially outward from the central disc portion of the core. The radial flange also includes a second portion that extends axially from the first portion of the flange. The second portion of the flange extends a substantially greater distance toward the inferior endplate than toward the superior endplate. In one embodiment, the second portion of the flange extends completely to the inferior endplate and engages the inferior endplate when the inferior endplate is in a neutral position relative to the core.

Intervertebral disc prosthesis with shear-limiting core

A modular disc prosthesis system is provided that allows a disc prosthesis to be constructed, either pre- or intra-operatively, to have a desired degree of freedom or constraint when positioned between endplates of adjacent vertebrae. In particular, the components can be assembled to form a disc prosthesis having a center of rotation that is constrained or fixed such that, when the disc prosthesis is implanted between endplates of adjacent vertebrae, the adjacent vertebrae have one degree of freedom and move about a fixed center of rotation. Alternatively, one or more of the same components and one or more additional components of the system can be used to construct a disc prosthesis having a center of rotation that is unconstrained or that floats such that, when the disc prosthesis is implanted between the endplates of adjacent vertebrae, the adjacent vertebrae have multiple degrees of freedom and can move about a floating or moving center of rotation, i.e., a center of rotation that is not fixed.

Modular intervertebral disc replacements

A nucleus pulposus trial device for assessing the size, shape and location of a disc space.

Nucleus pulposus trial device and technique

This invention relates to an intervertebral motion disc having two motion surfaces and an open channel.

Intervertebral disc having translation

An method and apparatus is provided for achieving stability of an implant in an intervertebral space of the human body, including an implant having a superior surface and an inferior surface, the surfaces having no significant protrusions extending therefrom and at least one modular projection mateable with one of each superior and inferior surface of the implant to achieve stability within the intervertebral space. The implants can be selected form a group of artificial discs and spinal fusion cages.

Method and apparatus for implant stability

This invention relates to a spinal facet joint ligament.

Growing community of inventors

Raynham, MA, United States of America

Andrew Dooris