Method and apparatus for machining bone to fit an orthopedic surgical implant
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United States of America Patent
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-
Apr 1, 1997
Grant Date -
N/A
app pub date -
May 16, 1994
filing date -
May 16, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for retaining a bone site in a fixed position and guiding a high speed power tool for machining the bone, such as a patella, including a positioner frame for rigid attachment about the bone site. The frame includes a bone clamping mechanism capable of adjustment and orientation of the bone site relative to the frame. A hinged power tool mount attaches to the frame and is adapted to receive a power tool for machining the bone in a predetermined manner. A power tool is received by the mount. A template corresponding to the predetermined manner attaches to the positioner frame for guiding the power tool. The bone clamping mechanism includes a plurality of gripping assemblies adapted to grip the bone about multiple locations. A depth adjustment guide is provided in the frame, which is adapted to cooperate with the power tool for controlling the depth the cut. A method for using the apparatus is also disclosed.
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