Electrosurgical clamping device with insulation limited...

Details Electrosurgical clamping device with insulation limited... Electrosurgical clamping device with insulation limited...

A - Human Necessities

61

B

A61B 18/14 (2006.01) A61B 17/28 (2006.01) A61B 17/32 (2006.01)

Patent

CA 2186569

An electrosurgical hemostatic instrument is provided in which the coagulation status of tissue engaged by two elements delivering an electrosurgical energy to tissue may be observed, and in which damage from thermal spread may be minimized. A preferred embodiment of the invention provides a bipolar endoscopic clamping, coagulation and cutting device. In this device, the outer conductive surface of the tissue engaging elements is substantially covered by an insulative coating whichconfines current flow to the clamped tissue and limited regions around the tissue engaging elements. Coagulation may be observed by watching the region around thetissue engaging elements. Coagulation around the tissue engaging elements may becontrolled by selectively coating the outside of the elements with insulation to control current flow from the surface of the engaging elements.

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