Patella prostheses
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United States of America Patent
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-
Mar 11, 1997
Grant Date -
N/A
app pub date -
Apr 1, 1994
filing date -
Jul 5, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A patella prosthesis is a mushroom shaped member whose head (1) is symmetrical or contoured to correspond to a human patella. The stem (2) is for insertion in a drilling in the resectioned surface which is shaped to receive the inferior surface (4) of the head (1). The preferred material is polyethylene or high purity alumina ceramic and there may be a metal backing (5) with a porous surface over the inferior side (4). Hydroxyapatite coating may also be applied here.
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Family
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