Bone biopsy apparatus
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United States of America Patent
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-
Jan 17, 1989
Grant Date -
N/A
app pub date -
Sep 9, 1987
filing date -
Sep 9, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for obtaining a bone biopsy comprising a trocar which includes a guide tube with gripping teeth at one end and a tubular drill which is insertable through the tube. The drill has cutting teeth at its forward end and comprises an outer retaining sheath and an inner retaining sheath which is slidable axially within the outer retaining sheath. The inner retaining sheath consists of two separable longitudinal halves which separate when the inner retaining sheath is removed from the outer retaining sheath by means of an elongated extractor.
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