Electro-surgical pencil with smoke evacuation

Details Electro-surgical pencil with smoke evacuation Electro-surgical pencil with smoke evacuation

A - Human Necessities

61

B

A61B 18/00 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2299752

According to the invention there is provided an electro-surgical pencil of a type having an electrode projecting out one end of said pencil, an electrical coupling operative to couple the electrode to an external electrical source. The pencil has an elongated housing having a hollow interior passageway, an open electrode end through which the electrode projects and an open end opposite to the electrode end couplable to a vacuum source. The hollow interior passageway is of a diameter sufficiently large to permit a flow and velocity of air sufficient to aspirate and evacuate smoke produced by the pencil. An electrode support in the hollow interior passageway holds the electrode. The electrode support and the electrode present a cross-sectional area which is substantially less than that of the hollow interior passageway. An optical switch is coupled to the elongated housing. An optical reflector having at least two different types of reflective surfaces is also coupled to the elongated housing proximate the optical switch, and a light fibre is coupled to the switch. An end of the light fibre is proximate the reflector, and is positionable to reflect light selectably from one of the two different types of reflective surfaces back up the light fibre.

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