Resectoscope apparatus

Details Resectoscope apparatus Resectoscope apparatus

1989-05-22

1991-02-19

Hafer, Robert A.

Surgery

Instruments

Electrical application

A61B 1736

Patent

active

049940627

ABSTRACT:
The resectoscope apparatus of this invention comprises an elongate hollow sheath to be inserted into a body cavity, an electrode inserted through the sheath and resecting or coagulating tissues within the body cavity by using a high frequency current, an endoscope insertable part inserted through the sheath and having an optical system making the body cavity interior observable and an operating part having a guide tube part through which the endoscope insertable part is inserted and a sheath connecting part connected to the base end part of the sheath and making the electrode operatable from outside the body. At least one of the guide tube part and sheath connecting part is formed of an electric insulating material for electric insulation.

REFERENCES:
patent: 3939839 (1976-02-01), Curtiss
patent: 3990456 (1975-04-01), Iglesias
patent: 4068667 (1978-01-01), Iglesias
patent: 4149538 (1979-04-01), Mrava et al.
patent: 4430996 (1984-02-01), Bonnet
patent: 4538610 (1985-09-01), Kubota
patent: 4648399 (1987-03-01), Nakada
patent: 4726370 (1988-02-01), Karasawa et al.
patent: 4744361 (1988-05-01), Karasawa

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