Intervertebral prosthetic disc
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 10, 2012
Grant Date -
Sep 4, 2008
app pub date -
Apr 15, 2008
filing date -
May 27, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.
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