Joint prosthesis having PTFE cushion
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United States of America Patent
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-
Mar 9, 1999
Issued Date -
N/A
app pub date -
Apr 25, 1997
filing date -
Dec 28, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A joint prosthesis for interconnecting the ends of adjoining bones includes a cushion of expanded PTFE having at least two facets for attachment to the bones. The cushion may or may not include stems for insertion into the bones. An optional sheath surrounds the non-facet surfaces of the cushion for preventing adherence of tissue. The motion of the prosthesis is defined or limited by the orientation of the facets and/or by the porosity of the cushion and/or by an insert within the cushion.
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Family
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Cited Art Landscape
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