Expandable anchor mechanism for use in endoscopic biopsy channel

Details Expandable anchor mechanism for use in endoscopic biopsy channel Expandable anchor mechanism for use in endoscopic biopsy channel

1997-03-12

1999-01-05

Stright, Ronald

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604165, 604103, A61M 2500

Patent

active

058555692

ABSTRACT:
An expandable anchor mechanism for tentatively fixing a flexible tubular section of a bioptic or surgical treating instrument inserted in a biopsy channel of an endoscopic insertion rod. During a bioptic or surgical treatment, a fore end portion of the treating instrument is fixedly gripped by the anchor mechanism to stabilize a movable operating member of the instrument which is protruded into a body cavity from the distal end of the biopsy channel. The anchor mechanism includes an anchor control means for remote-controlling an anchor member to and from an expanded state projecting into the biopsy channel to grip a treating instrument and a flatly contracted state permitting movements of the treating instrument in the biopsy channel.

REFERENCES:
patent: 5073166 (1991-12-01), Parks et al.
patent: 5147316 (1992-09-01), Castillenti
patent: 5176697 (1993-01-01), Hasson et al.
patent: 5232451 (1993-08-01), Freitas et al.
patent: 5250040 (1993-10-01), Parks et al.
patent: 5290249 (1994-03-01), Foster et al.

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