Collar for femoral implant and method and apparatus for installation thereof
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United States of America Patent
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-
Jan 2, 1996
Issued Date -
N/A
app pub date -
Jan 18, 1994
filing date -
Nov 20, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A prosthetic device for the human hip having elongated fins or other like protrusions which are provided on the underside of a collar and which extend into previously formed slots or grooves in the bone. Either a plurality of fins, or a single fin having a non-rectilinear shape is provided. Apparatus for formation of the grooves in the bone includes a mill guide which can be mounted onto the proximal end of a rasp embedded in a cavity formed in the bone. A milling bit is used in conjunction with the mill guide to form precisely located and shaped grooves into which the fins can seat. A clamp is provided for securing the prosthetic device to the femur while the cement is hardening.
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