Surgical biopsy instrument

Details Surgical biopsy instrument Surgical biopsy instrument

1993-08-16

1995-01-24

Pellegrino, Stephen C.

Surgery

Truss

Pad

606170, 606174, 606207, A61B 1000

Patent

active

053834712

ABSTRACT:
A surgical instrument useful as a biopsy tool and other related cutting or manipulating apparatus having two or more complementary mating jaws for securing and cutting the selected tissue, pivoted and operable remote from the operator handle. The surgical instrument includes elements to prevent the relative dislocation, or `racking`, of the cutting elements when the instrument is rotated on an axis perpendicular to the pivot point of the jaws. Further features of the present invention include an asymmetric continuous cutting surface about the major portion of the perimeter of the jaws, and a protruding tip of each of the jaw cutting surfaces, forming an incisor-like cutting region to insure that the sampled tissue is secured within the region of the jaw and cleanly cut free from the surrounding tissue. When fully engaged, the surgical instrument encloses the sample to be removed. The anti-racking structure is adaptable to other surgical instrument functions as may be applied to laparoscopic surgery, wherein the other surgical elements replace the forward cutting surfaces.

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