Electrosurgical handpiece incorporating blade and conductive...

A - Human Necessities – 61 – B

Patent

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A61B 18/00 (2006.01) A61B 17/39 (1995.01)

Patent

CA 2093330

An electrosurgical handpiece (20) applies electrical energy to a blade electrode (22) to accomplish blade electrosurgery or to a transfer electrode and nozzle (34) to transfer electrical energy in arcs in a flowing gas to accomplish conductive gas electrocoagulation. The blade electrode (22) may be selectively extended to conduct blade electrosurgery and withdrawn when conductive gas electrocoagulation is accomplished. Finger activated switches (28, 30) on the handpiece (20) control the application of electrical energy to the blade electrode (22) and the application of gas to the nozzle (34) and the electrical energy to the transfer electrode (34). A cord (36) includes a tubing (44) for supplying gas to the handpiece (20). The cord (36) also includes a multiconductor cable (50) for conducting electrical energy to the electrodes and conducting control signals to an electrosurgical apparatus (38) which delivers the electrical energy and the gas.

Pièce à main d'électrochirurgie (20) qui transmet l'énergie électrique à une électrode en forme de lame (22) pour effectuer une électrochirurgie ou à une électrode de transfert et à un bec (34) pour transférer l'énergie électrique en arcs dans un gaz à écoulement en vue d'effectuer une électrocoagulation par gaz conducteur. Des interrupteurs activés par le doigt (28, 30) sur la pièce à main (20) commandent la transmission d'énergie électronique à la lame-électrode (22), la transmission du gaz au bec (34) et la transmission de l'énergie électrique à l'électrode de transfert (34). Un cordon (36) comporte un tube (44) pour l'apport de gaz à la pièce à main (20). Le cordon (36) comprend également un câble multifilaire (50) pour acheminer l'énergie électrique aux électrodes et les signaux de commande à un appareil d'électrochirurgie (38) qui fournit l'énergie électrique et le gaz.

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