Surgery – Instruments – Cutting – puncturing or piercing
Reexamination Certificate
2007-08-21
2007-08-21
Dawson, Glenn K. (Department: 3731)
Surgery
Instruments
Cutting, puncturing or piercing
C606S185000, C606S180000, C606S179000, C606S174000
Reexamination Certificate
active
10863097
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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Bachman Alan
Choi Steven
Reed Scott
Dawson Glenn K.
Law Office of Alan W. Cannon
Origin Medsystems Inc.
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