Medical punch and surgical procedure
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United States of America Patent
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Aug 21, 2007
Grant Date -
N/A
app pub date -
Jun 7, 2004
filing date -
Jun 17, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A medical punch includes a longitudinally dividable anvil with a reduced cross-sectional dimension facilitating insertion of the anvil into the vessel wall to achieve a clean aperture in the vessel wall by cooperative shearing action of a cutting edge and an anvil edge. In another embodiment, the instrument incorporates a measuring device for determining the thickness of a vessel wall between an anvil and a distal end of a cylindrical structure which together form a caliper, and the measuring device can also constitute a medical punch by cooperative shearing action of a cutting edge and an anvil to achieve a clean aperture in the vessel wall.
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