Surgical instrument

Details Surgical instrument Surgical instrument

1997-06-11

1999-08-17

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

606167, 606174, 606188, 606205, 606206, 606207, A61B 1732

Patent

active

059386789

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 plurality of relatively pivotable vertebrae (120-129) extending along the flexible stem section and an extension spring (150) extending axially through the plurality of vertebrae for transmitting axial load between the surgical tool (30) and the rigid stem section (20). An actuator cable (180) extends through the extension spring (150) and is connected with the movable tool part (34) for applying force to the movable tool part to move the movable tool part relative to the flexible stem section (24). The extension spring (150) carries the axial load on the flexible stem section (24).

REFERENCES:
patent: 3470876 (1969-10-01), Barchilon
patent: 3605725 (1971-09-01), Bentov
patent: 5437630 (1995-08-01), Daniel et al.
patent: 5454827 (1995-10-01), Aust et al.
patent: 5522788 (1996-06-01), Kuzmak
patent: 5618294 (1997-04-01), Aust et al.
patent: 5741286 (1998-04-01), Recuset

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