Medical instrument

Details Medical instrument Medical instrument

1992-12-21

1994-05-17

Yasko, John D.

Surgery

Instruments

Forceps

606 45, 606 52, 606170, 606174, A61B 1742

Patent

active

053124340

ABSTRACT:
A medical instrument includes an elongated tube; a jaw tool, mounted to an end of the elongated tube and having two jaw elements pivotally mounted to each other at a pivot point, each jaw element having an operative end and a linkage end, the operative end and the linkage end extending from the pivot point, the operative end and the linkage end of each jaw element being arranged in a substantially coplaner fashion; an actuating rod for opening and closing the jaw tool, the actuating rod having a thickness and being movably disposed within the elongated tube; a linkage assembly for linking the actuating rod with the jaw tool, comprising two link elements, each link element having a first end pivotally linked to the actuating rod and a second end pivotally linked to the linkage end of a respective jaw element, the first end and the second end of each link element being offset relative to one another so as to compensate for the thickness of the actuating rod and provide proper alignment of each link element between the actuating rod and a respective jaw element; and a handle mounted to the elongated tube and operably connected to the actuating rod so as to actuate the actuating rod whereby the handle can be used to actuate the jaw tool. The second end of each link element preferably interacts with the linkage end of a jaw element so as to provide a closing stop for limiting the extent of closing of the jaw elements.

REFERENCES:
patent: 2790437 (1957-04-01), Moore
patent: 3840003 (1974-10-01), Komiya
patent: 4512343 (1985-04-01), Falk et al.
patent: 5009661 (1991-04-01), Michelson
patent: 5082000 (1992-01-01), Picha et al.
patent: 5133735 (1992-07-01), Slater et al.
patent: 5133736 (1992-07-01), Bales, Jr. et al.
patent: 5141519 (1992-08-01), Smith et al.
patent: 5147357 (1992-09-01), Rose et al.
patent: 5156633 (1992-10-01), Smith
patent: 5171258 (1992-12-01), Bales et al.

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