Femoral neck endoprosthesis for an artificial hip joint
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United States of America Patent
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-
May 7, 2002
Grant Date -
N/A
app pub date -
Mar 20, 2001
filing date -
Jul 30, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A femoral neck endoprosthesis for an artificial hip joint, having an adapter for accommodating the joint ball, a support ring for guiding the adapter on the proximal side of the femur, and a support bearing for guiding the adapter on the lateral side of the femur. The aim of the invention is to increase the strength of the bone tissue for a prosthesis. To this end, the prosthesis is configured in such a way that the adapter is provided with a support shoulder and with a shaft which penetrates the femur approximately along the extended axis of the femoral neck. The support ring is mounted on the proximal side of the femur only with its support surface. An axial stop for the support shoulder and a bore for the shaft are arranged on the support ring for guiding the adapter. The bore is laterally offset in relation to the support surface. The support bearing is fixed only on the lateral side of the femur and the guide bore for the shaft can be aligned with the axis of the adapter.
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