Surgery – Instruments – Heat application
Reexamination Certificate
2011-04-05
2011-04-05
Cohen, Lee S (Department: 3739)
Surgery
Instruments
Heat application
Reexamination Certificate
active
07918848
ABSTRACT:
A surgical apparatus and methods for severing and welding tissue, in particular blood vessels, include a pair of relatively movable jaws at a distal end of an elongated shaft. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. A force-limiting mechanism is provided to limit the pressure applied to the tissue by the jaws to ensure that the tissue is severed and the ends effectively welded within a short amount of time.
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Abbott Ryan C.
Barkman Kimberly D.
Callas Peter L.
Dang Kenny L.
Escano Arnold M.
Cohen Lee S
Maquet Cardiovascular LLC
Vista IP Law Group LLP
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