Surgical retrieval assembly and associated method

Details Surgical retrieval assembly and associated method Surgical retrieval assembly and associated method

1996-08-08

1998-04-21

Hafer, Robert A.

Surgery

Instruments

Means for removing tonsils, adenoids or polyps

606110, 604280, A61B 1724, A61B 1726

Patent

active

057412715

ABSTRACT:
A surgical instrument assembly for a snare cauterization operation comprises a tubular member having a diameter sufficiently small so that the tubular member can be inserted through a biopsy channel of a flexible endoscope. Multiple endoscopic instrument including a cauterization loop, a flexible web member connected to the cauterization loop or to an auxiliary loop so as to form a capture pocket, and an elongate flexible fluid feed tube provided at a distal end with a needle point and an aperture, are slidably disposed in the tubular member. The fluid feed instrument is used to expand a flat or nonprojecting polyp prior to severing thereof with the cauterization loop and capture of the severed polyp with the web member or pocket.

REFERENCES:
patent: 5234439 (1993-08-01), Wilk et al.
patent: 5336227 (1994-08-01), Nakao et al.
patent: 5342297 (1994-08-01), Jang
patent: 5423830 (1995-06-01), Schneebaum et al.
patent: 5451206 (1995-09-01), Young
patent: 5542948 (1996-08-01), Weaver et al.
patent: 5571093 (1996-11-01), Cruz et al.

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