Surgical instrument

Details Surgical instrument Surgical instrument

1997-06-11

1998-12-22

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

606167, 606174, 606180, 604 95, A61B 1732

Patent

active

058512128

ABSTRACT:
A surgical instrument (10) includes a handle (12), a rigid stem section (20) extending from the handle, and a flexible stem section (24) extending from the rigid stem section. A surgical tool (30) connected with a distal end of the flexible stem section (24) includes a movable part (34). The flexible stem section (24) comprises a bendable outer tubular member (50) and a bendable inner tubular member (90) slidable within the outer tubular member. The inner tubular member (90) has a neutral axis of bending (100) spaced apart from the neutral axis of bending (68) of the outer tubular member (50). The flexible stem section (24) is movable between a plurality of orientations relative to an axis (48) in response to relative sliding movement between the inner and outer tubular members (90, 50).

REFERENCES:
patent: 3470876 (1969-10-01), Barchilon
patent: 3521620 (1970-07-01), Cook
patent: 3605725 (1971-09-01), Bentov
patent: 5378234 (1995-01-01), Hammerslag et al.
patent: 5669926 (1997-09-01), Aust et al.

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