High-frequency incising and excising instrument

Details High-frequency incising and excising instrument High-frequency incising and excising instrument

1984-05-30

1987-02-17

Thaler, Michael H.

Surgery

Truss

Pad

128320, A61B 1739

Patent

active

046431870

ABSTRACT:
A high-frequency incising and excising instrument for use in a body passage, the instrument having a wire loop for projection from the distal end of a tubular sheath and manipulated from the proximal end of the tube for hooking a phyma, polyp, growth, or the like, to be excised and for excising the phyma, polyp, growth, or the like, by applying high-frequency electric current to the wire loop. The instrument has a crescent wire loop formed by a wire bent at a bending portion. A slider, secured to the end portion of one side of the wire, is pressed in the advancing operation of the wire and moved sidewards in the sheath to engage a guide on the inner wall of the sheath and to prevent rearward movement of the wire end so that pulling the bent side of the wire into the tubular sheath tightly binds the phyma, polyp, growth, or the like, to be incised and, upon completion of the incising, the wire can be drawn back into the tubular sheath.

REFERENCES:
patent: 4181131 (1980-01-01), Ogiu

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