Surgical instrument with hydraulic actuator

Details Surgical instrument with hydraulic actuator Surgical instrument with hydraulic actuator

1984-07-31

1986-11-11

Pinkham, Richard C.

Surgery

Truss

Pad

227DIG1, A61B 1704

Patent

active

046216391

ABSTRACT:
A hand-operated surgical instrument of closing wounds with a fastener. The instrument has a movable operating member extending from a movable handle which actuates the operating member. A hydraulic actuator comprising first and second cylinders is connected between the handle and the operating member for effecting the movement of the operating member when the handle is moved relative to the instrument. A biasing member is provided for returning the operating member and the handle means to the unactuated position. The surgical instrument includes a housing and a needle extending outwardly from one end of the housing. A plurality of fasteners are located within the housing such that when the operating member is actuated, the fasteners are forced out through the needle by the force of the operating member.

REFERENCES:
patent: 2767400 (1956-10-01), Haberstump
patent: 3402712 (1968-09-01), Esenhand
patent: 3653117 (1972-04-01), Wolfberg
patent: 3752161 (1973-08-01), Bent
patent: 3952747 (1976-04-01), Kimmell
patent: 4049177 (1977-09-01), Bussard
patent: 4331277 (1982-05-01), Green
patent: 4349028 (1982-09-01), Green

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