Articular prosthesis and its preparation process
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United States of America Patent
Stats
-
Dec 19, 1989
Grant Date -
N/A
app pub date -
Sep 9, 1982
filing date -
Sep 24, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A polymer articular prosthesis having a sliding surface, wherein the latter is constituted by a thin layer of said polymer grafted with tetrafluoro-ethylene. The process for preparing the articular prosthesis comprises coating with a protective varnish the outer surface of a polymer articular prosthesis having a sliding surface, except in the areas constituting this sliding surface irradiating the prosthesis with ionizing rays, contacting the prosthesis with the tetrafluoroethylene vapour for adequate time to bring about tetrafluoroethylene grafting over a limited thickness of the polymer forming the sliding surface and then removing the protective varnish.
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Family
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