Importance

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Abstract

An endoscopic bipolar forceps comprises an elongated tubular member dimensioned to fit through the working lumen of an endoscope where the tubular member includes a handle at its proximal end and a pair of end effectors at its distal end and with a lumen extending between them. The end effectors each have a metal tissue cutting and tissue sample capturing and retaining element facing one another and capable of being open and closed by manipulating the handle. Each of the end effectors includes an electrode supported by and insulated from it. A push rod coupling the handle to the end effectors for inducing the pivotal movement thereof also serves as an electrical conductor for applying a first potential to the metal tissue cutting and tissue sample capturing and retaining element. A second conductor extends through the lumen of the tubular member and is electrically connected to the electrodes on each of the end effectors. With this arrangement, an electrocautery voltage is developed between an electrode and the metal tissue cutting and tissue sample capturing element that supports that electrode.

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First Claim