Surgery – Instruments – Electrical application
Patent
1998-09-29
2000-03-21
Cohen, Lee
Surgery
Instruments
Electrical application
2191215, 21912151, 606 40, A61B 1739
Patent
active
060397365
ABSTRACT:
An electrosurgical apparatus for coagulating tissue includes an elongated flexible tube which extends through a working channel of an endoscope. A pressurized ionizable gas is supplied to the proximal end of the tube and is forced at a rate of greater than 1 liter per minute therethrough. The tube also includes at least one aperture located along the periphery of the tube and an angularly disposed surface located within the tube for redirecting the gas through the aperture and at the tissue. At least one electrode ionizes the gas prior to the gas exiting the aperture.
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Cohen Lee
Sherwood Services AG
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