Endoscopic microsurgical instruments and methods

Details Endoscopic microsurgical instruments and methods Endoscopic microsurgical instruments and methods

1995-11-17

1997-04-08

Buiz, Michael Powell

Surgery

Instruments

Forceps

606142, 606143, A61B 1728

Patent

active

056183062

ABSTRACT:
The invention provides devices and method for performing extremely small-scale, minimally-invasive microsurgery such as thoracoscopic coronary artery bypass grafting. The instruments of the invention utilize a symmetrical, forcep-like actuator which provides extremely precise actuator and control of the instrument and which mimics the feel of instruments used in conventional open surgical procedures. The instruments generally include a pair of coaxially arranged shafts, an end-effector at the distal ends of the shafts, and an actuator at the proximal ends of the shafts. The actuator includes a pair of arms pivotally coupled to one of either the outer or inner shalt, and a pair of links pivotally coupled at one end to the arms, and at a second end to the other of the shafts. The links are coupled to a proximal portion of the arms to maximize mechanical advantage and reduce interference. The actuator may be easily adapted for either pull-type or push-type actuation, and for either outer shaft or inner shaft translation. The end-effectors may have a variety of configurations, including needle drivers, forceps, scissors, and clip appliers.

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Product Brochure--Buhler-ErgonoMIC--System, GmbH, Mehlbeerenstrasse 2, D-8028 Taufkirchen, Germany.
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Product Brochure, Hermann Dausch--Fabrik Chirurgischer Instrumente, Bahnhofstrasse 76, D-7200 Tuttlingen, Germany.

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