Intervertebral disk prosthesis or artificial vertebra

Details Intervertebral disk prosthesis or artificial vertebra Intervertebral disk prosthesis or artificial vertebra

2007-01-23

2007-01-23

Barrett, Tom (Department: 3738)

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

Implantable prosthesis

Bone

C623S017110

Reexamination Certificate

active

10532908

ABSTRACT:
An intervertebral disk prosthesis having an essentially hollow cylindrical base element (1) which is provided with a casing (2) that is embodied as a bellows, a top end (3), and a bottom end (4), and a central longitudinal axis (5). The base element also includes an upper apposition plate (6), which is disposed perpendicular to the longitudinal axis (5) at the top end (3) of the base element (1) and rests on the base plate of the vertebra, and a lower apposition plate (7), which is arranged perpendicular to the longitudinal axis (5) at the bottom end (4) of the base element (1) and leans on the cover plate of a vertebra. The casing (2) serves a spring element having a defined spring rate.

REFERENCES:
patent: 4932975 (1990-06-01), Main et al.
patent: 5002576 (1991-03-01), Fuhrmann et al.
patent: 6395032 (2002-05-01), Gauchet
patent: 6582468 (2003-06-01), Gauchet
patent: 6692495 (2004-02-01), Zacouto
patent: 9000094.3 (1991-01-01), None

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