Intervertebral disk prosthesis
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United States of America Patent
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Mar 14, 2006
Grant Date -
Jul 17, 2003
app pub date -
Jan 16, 2003
filing date -
Jan 17, 2002
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An intervertebral disk prosthesis includes a first part, and the first part has a top, a bottom having an opening, an outer surface, an inner surface and a socket extending into an interior of the first part from the opening and defined by the inner surface. The outer surface proximate the top contacts a concave portion of a first vertebra. The disk prosthesis further includes a second part including a top, a bottom, and an outer surface. The outer surface proximate the bottom contacts a concave portion of a second vertebra, and the outer surface of the second part proximate the top of the second part cooperatively engages the inner surface of the first part thereby allowing at least two-degrees of freedom of movement.
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