Hip joint prosthesis
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United States of America Patent
Stats
-
Apr 28, 1992
Grant Date -
N/A
app pub date -
Sep 30, 1991
filing date -
Nov 26, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The hip joint prosthesis consists of two cups which are anchored together in the direction of the polar axes by a snap connection. The inner cup is made of cobalt alloy and outer cup of titanium. The outer cup carries a straddling dowel which projects into the bone tissue and which is subdivided into radially deflectable segments having sharp edges thereon. The inner cup has a shaped body which projects into the dowel and which is shaped so as to expand the deflectable segments upon rotation of the inner cup within the outer cup. Each dowel segment is provided with a notch to receive a corner of the shaped body so as to hold the body in a holding position in a snap-fit manner.
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Family
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Cited Art Landscape
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