Prosthetic patello femoral joint assembly
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United States of America Patent
Stats
-
Mar 11, 1997
Grant Date -
N/A
app pub date -
Mar 22, 1995
filing date -
Mar 23, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A prosthetic patello femoral joint assembly comprises a patella mounting component on which is located a movable mobile bearing component. A first side of the bearing component is shaped to engage the patella groove of a natural or an artificial femur. A second side of the mounting component has a substantially spherical convex bearing surface which engages and can articulate against a substantially spherical posterior concave bearing surface on the mounting component. A control means acts between the components to restrict substantially vertical movement of the bearing component about a medio lateral axis of the knee with which it is to be used, but allows substantially horizontal movement and relative rotation between said mounting component and said bearing component.
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