Ldr Medical

Jérôme Allain

Joël Delecrin

Patrick Tropiano

Serge Ganglof

Rémi Poncer

Jacques Beaurain

Michel Onimus

Hervé Chataignier

Charles R Gordon

Pierce Nunley

Jeff Phelps

Joel Delecrin

Michael Hisey

Jean-Paul Frédéric Steib

Vincent Leone

Jean Lombard

Thierry Vila

Henry Dufour

Michael M D Hisey

Vincent J Leone

Pierce D Nunley

Various methods, devices, and systems are disclosed that facilitate easier and more compact implantation of osteosynthesis devices. In some embodiments, implants are screwed into two vertebrae and a plate is used to hold and displace the spine. In some plate embodiments, at least one longitudinally elongated opening is disposed at one end of the plate and partially opening onto an edge of the plate. In some plate embodiments, at least one longitudinally elongated opening is disposed at one end of the plate having a portion sufficiently large to be inserted without disassembly in the fixation means of an implant already screwed into the spine when the fixation means are already assembled.

Plate for osteosynthesis device and method of preassembling such device

An intervertebral disc prosthesis designed to be substituted for fibrocartilaginous discs ensures a connection between the vertebra of the vertebra column or the end of the latter. The prosthesis includes a pair of plates spaced from each other by a nucleus. The prosthesis has increased stability by providing the nucleus with a translation or rotation stop, or by inducing an angular correction between its plates contacting vertebra, or a combination of these characteristics. The stop includes parts external to the nucleus and contact surfaces perpendicular to their contact directions. Surgical methods and instrumentation for implanting the prosthesis are also described.

Intervertebral disc prosthesis, surgical methods, and fitting tools

An nucleus prosthesis is disclosed having a plurality of linked segments configured to form, in a closed position, a disc shape. A method includes inserting a plurality of linked segments into an annulus fibrosus and closing the prosthesis so that a first segment inserted into the annulus fibrosus and a last segment inserted into the annulus fibrosus are substantially abutted. Another method includes inserting a plurality of linked segments into an intervertebral disc space and closing the prosthesis so that a first segment inserted into the intervertebral disc space and a last segment inserted into the intervertebral disc space are substantially abutted.

Nucleus prostheses

An intersomatic cage, an intervertebral prosthesis, an anchoring device and an instrument for implantation of the cage or the prosthesis and the anchoring device are provided. An intersomatic cage or an intervertebral prosthesis fit closely to the anchoring device, which includes a body of elongated shape on a longitudinal axis, of curved shape describing, along the longitudinal axis, an arc whose dimensions and radius of curvature are designed in such a manner that the anchoring device may be implanted in the vertebral plate of a vertebra by presenting its longitudinal axis substantially along the plane of the intervertebral space, where the anchoring device is inserted, by use of the instrument, through a slot located in at least one peripheral wall of the cage or on at least one plate of the intervertebral disc prosthesis to penetrate into at least one vertebral plate.

Intersomatic cage, intervertebral prosthesis, anchoring device and implantation instruments

The present invention relates to an osteosynthesis device, particularly for spinal support or correction, enabling easier and compact implantation, that can be particularly used in the case of implantation via the anterior approach, and a preassembly method for such a device. Said device comprises implants screwed into two vertebrae and one plate characterized in that the plate is joined to at least one implant by attachment structure able to hold said plate without preventing the implant from rotating on its screwing axis, or without preventing a specified clearance of the plate with respect to the implant. In this way, said attachment structure make it possible to continue screwing the implant, or adjust the position of the plate after the plate has been on the implant.

Progressive approach osteosynthesis device and preassembly method

An osteosynthesis device is proposed, particularly for spinal support or correction, enabling easier and compact implantation, that can be particularly used in the case of implantation via the anterior approach, and a preassembly method for such a device. In various embodiments, the device comprises implants screwed into two vertebrae () and a plate () used to hold and displace the spine. In various embodiments, the plate () comprises on at least one of its ends at least one longitudinally elongated opening, the opening having firstly at least one part opening onto an edge of the plate, or one part of a sufficiently large size (s) to be able to be inserted without disassembly in the fixation means of an implant () already screwed into the spine when the fixation means are already assembled.

An intervertebral disc prosthesis designed to be substituted for fibrocartilaginous discs ensures a connection between the vertebra of the vertebra column or the end of the latter. The prosthesis includes a pair of plates spaced from each other by a nucleus. The prosthesis has increased stability by providing the nucleus with a translation or rotation stop, or by inducing an angular correction between its plates contacting vertebra, or a combination of these characteristics. The stop includes parts external to the nucleus and contact surfaces perpendicular to their contact directions.

Intervertebral disc prosthesis and fitting tools

Growing community of inventors

Paris, France

Jérôme Allain