Intervertebral nucleus prosthesis and surgical procedure for implanting the same
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United States of America Patent
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May 2, 2006
Grant Date -
Oct 24, 2002
app pub date -
Jan 30, 2002
filing date -
Aug 3, 1999
priority date (Note) -
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Abstract
An intervertebral nucleus prosthesis characterized in that it consists of at least one, in particular, spherical body movable in two directions of a plane and made of a rigid, non-oxidizing, biocompatible material with a diameter adapted to the biological nucleus, the spherical body being mounted non-displaceably but freely rotatably about its center in a cage and protruding at both opposite sides of said cage in the form of a spherical caps. Also proposed is a method for implanting such a prosthesis.
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