Surgical shaving device for use within body conduits

Details Surgical shaving device for use within body conduits Surgical shaving device for use within body conduits

1997-06-10

1999-05-18

Buiz, Michael

Surgery

Instruments

Blood vessel, duct or teat cutter, scrapper or abrader

606194, A61B17/22

Patent

active

059046988

ABSTRACT:
A surgical device is disclosed for treating and removing obstructing material from within a vascular conduit or other body passageway. The device comprises a catheter device having an expandable and collapsible outer mesh sleeve disposed at a distal end. The outer mesh sleeve is configured such that when expanded in the obstructed conduit or passageway, a portion of the obstructing material is forced through a plurality of openings in its outer surface and thus, into the outer mesh sleeve. An inflatable and deflatable balloon may be coupled to the catheter and used to radially expand the outer mesh sleeve into the obstructing material. A treatment element disposed within the catheter device is moved against the inner surface of the outer mesh sleeve to treat and remove any obstructing material with which it contacts. The treatment element may be configured as a blade for physically removing the obstructing material, or as an electrode for electrosurgical treatment. After treatment or removal of the obstructing material, the outer mesh sleeve is collapsed and the catheter device removed from the body conduit.

REFERENCES:
patent: 4650466 (1987-03-01), Luther
patent: 4919133 (1990-04-01), Chiang
patent: 5100423 (1992-03-01), Fearnot
patent: 5496267 (1996-03-01), Drasler
patent: 5527282 (1996-06-01), Segal
patent: 5540707 (1996-07-01), Ressemann et al.
patent: 5569276 (1996-10-01), Jang et al.
patent: 5578007 (1996-11-01), Imran

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