Cannulated drill bit with radially offset cutting edge
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United States of America Patent
Stats
-
Apr 29, 2014
Grant Date -
Jan 22, 2009
app pub date -
Jul 19, 2007
filing date -
Jul 19, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A drill bit has a cylindrical proximal end coupled to a driving device with a central axis of rotation about which the proximal end rotates. A distal portion of the drill bit is a cutting device attached to the proximal end in such a way that it extends outside the periphery of the proximal end for a distance less than the entirety of the circumference of the proximal end. A guide wire extends through a passageway in the bit and is provided to create a pilot hole before the distal portion enlarges that hole. With this configuration of the cutting device, it is possible to position the cutting device in the distal portion in a direction facing away from the medial femoral condyle so that the proximal end of the drill bit can slide past the medial femoral condyle, with its axis of rotation much closer to that condyle than would be the case in prior art drill bits.
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