Femoral component for a hip prosthesis
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United States of America Patent
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-
Oct 25, 1994
Grant Date -
N/A
app pub date -
Apr 29, 1993
filing date -
Apr 29, 1993
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A femoral component for a hip prosthesis has a distal portion defining a central longitudinal axis. The component has a generally conically shaped mid-shaft portion and a proximal portion with a shape based on the reamer and a shaped chisel used by the surgeon to prepare the proximal metaphysis and medullary canal. The proximal portion is shaped in a manner wherein a cross-section taken perpendicular to the central axis has a medial side formed as a first circular arc, a corner of the cross-section formed by the posterior and lateral sides as a second circular arc with a center on the central axis. The posterior side is arcuate and concave and tangent to the first and second circular arcs, with the anterior side being arcuate and convex.
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