Intervertebral disc prosthesis

Details Intervertebral disc prosthesis Intervertebral disc prosthesis

2011-02-15

2011-02-15

Barrett, Thomas C (Department: 3775)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

C623S017110, C623S017150, C623S017160

Reexamination Certificate

active

07887590

ABSTRACT:
The invention relates to an intervertebral disc prosthesis having an upper plate, a lower plate having an essentially-flat support surface, and an intermediate element having a base which is equipped with a rim and which is topped with a spherical cap. The upper plate and the cap define a ball and socket joint therebetween. The base of the intermediate element comes into contact with a support surface of the lower plate. The lower plate is equipped with a guide having two edges which maintain the intermediate element therebetween. The rim of the base comes into contact with the edges, the rim being circular in shape and adapted to enable the intermediate element to roll along the length of the edges.

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International Search Report PCT/FR2006/000982 dated Sep. 14, 2006.

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