Broach for shaping a medullary cavity in a bone
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United States of America Patent
Stats
-
Apr 4, 2000
Grant Date -
N/A
app pub date -
May 5, 1999
filing date -
Nov 8, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A broach for shaping a medullary cavity in a bone to receive an orthopaedic prosthesis which is tapered inwardly in a direction from its proximal end toward its distal end. The broach has (a) a proximal portion on which a plurality of cutting teeth are arranged to cut the internal surface of the cavity to receive the broadened proximal portion of the prosthesis, (b) a plug portion at or towards the distal end of the broach, and (c) an elongate connecting portion by which the plug portion is connected to the proximal portion. The transverse dimension of the connecting portion is less than that of the plug portion and the proximal portion, and the width of the plug portion is greater at a point between its ends than at any other point along its length, the surface at the point of greatest width being convex when the broach is viewed from the side.
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