Patent ID: 7166131

Claim:
An intervertebral disk prosthesis or an artificial vertebral body, comprising: A) an essentially hollow-cylindrical basic body ( 1 ) with a jacket ( 2 ) constructed as a bellows, a top end ( 3 ), a bottom end ( 4 ) and a central longitudinal axis ( 5 ), B) a top apposition plate ( 6 ), provided transversely to the central longitudinal axis ( 5 ) on the top end ( 3 ) of the basic body ( 1 ), said top apposition plate ( 6 ) serving as a support for a base plate of a vertebral body, and C) a bottom apposition plate ( 7 ), provided transversely to the central longitudinal axis ( 5 ) on the bottom end ( 4 ) of the basic body 1 , said bottom apposition plate ( 7 ) being adapted for placement on a cover plate of a vertebral body, and D) the jacket ( 2 ), constructed as a bellows, is constructed as a spring element with a specific spring rate, wherein E) the jacket ( 2 ) comprises a plurality of bellows inserted into one another.