Endoscopic surgical gripping instrument with universal joint jaw

Details Endoscopic surgical gripping instrument with universal joint jaw Endoscopic surgical gripping instrument with universal joint jaw

1994-10-18

1998-05-19

Dawson, Glenn K.

Surgery

Instruments

Forceps

606206, 606205, A61B 1728

Patent

active

057529736

ABSTRACT:
A surgical instrument for gripping tissue in an endoscopic workspace. The instrument has an elongate introducer sleeve extending along a primary axis. An articulating jaw assembly is coupled to the distal end of the introducer sleeve with a ball and socket-type joint that provides jaws that open and close with around a secondary axis. Thus, the secondary axis of the jaw assembly is free to articulate and rotate relative to the primary axis of the introducer sleeve. When tissue is gripped by the jaws, lateral retraction forces cause the jaw assembly to align itself with the direction of retracting forces. A trigger within a proximal handle actuates the jaws in any articulated position. The instrument further provides a "flex jaw" feature by which is meant the jaw working faces are somewhat free to rotate relative to the jaw arms. Thus, as the jaw arms close to grip tissue, the jaw working faces rotate to accommodate tissue thickness and density thereby uniformly apply gripping pressure on tissue.

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