Composite bearing inserts for total knee joints
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United States of America Patent
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-
Sep 16, 2003
Grant Date -
May 9, 2002
app pub date -
Oct 7, 1999
filing date -
Oct 7, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A composite bearing insert for a total knee joint or a unicondylar knee joint which minimizes or eliminates the production of wear debris resulting from relative motion at the interface between the endoskeleton and a tibial tray of a knee joint prosthesis. The composite bearing insert includes an endoskeleton and a polymer portion which is preferably molded into and locked within the endoskeleton. The endoskeleton is configured to be locked to a tibial component, such as a tibial tray or keel. The modularity of the assembly facilitates the interchangeability of various composite bearing inserts with various tibial components.
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