Hand held battery powered bone awl
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United States of America Patent
Stats
-
Sep 19, 1989
Grant Date -
N/A
app pub date -
Jul 20, 1987
filing date -
Jul 20, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hand held, self powered bone awl (10, 50) is disclosed which can be held in the hand of a surgeon for drilling holes through bone, such as the sternum bone during open heart surgery. In one embodiment, the awl is activated by a finger operated switch (38). In another embodiment, a pressure activated switch (52) operates the awl when the end of the bone awl bit (20) is pushed against the bone to be drilled. In either embodiment, a predetermined length (24) of the bit (20) is exposed to limit the depth of drilling to prevent damage to tissue behind the bone.
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