Apparatus and methods for articular cartilage defect repair
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United States of America Patent
Stats
-
Jan 25, 2000
Issued Date -
N/A
app pub date -
May 30, 1997
filing date -
Mar 7, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bone plug removal and emplacement tool includes a cylindrical cutting element having a proximal cutting edge and a cutting tooth. The outer surface of the cutting element can include an integral shoulder (e.g., in lieu of a replaceable outer sheath) that is spaced-apart from the proximal cutting edge and that engages the surface of the bone to define a depth stop for the cutting edge. An additional cylindrical element can be disposed within the cutting element. The proximal end of that additional element, which is referred to as a 'harvester,' is substantially aligned with the proximal end of the cutting element to receive a plug cut from the bone. The harvester can be slidably withdrawn from the cutting element to facilitate transplating the bone plug at another location. For this purpose, a stem or plunger can be slidably inserted and moved in the harvester to dislodge the plug.
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