Surgical instrument with extendable blades

Details Surgical instrument with extendable blades Surgical instrument with extendable blades

1992-07-31

1993-09-21

Hindenburg, Max

Surgery

Truss

Perineal

606198, A61B 1702

Patent

active

052459870

ABSTRACT:
A tissue retraction device for use in laparoscopic surgery which includes a plurality of thin, resiliently deformable, pre-stressed blades disposed in a stacked relationship within an outer sleeve. The blades are connected at their inboard ends to a support rod which is telescopically carried within the sleeve. The blades are pre-twisted about a stratigically located pivot point so that once the inboard end of the device is positioned within the peritoneum, the rod can be urged forwardly causing the end portions of the blades to automatically fan out in a manner such that the full width of the blades can be pressed against the tissue.

REFERENCES:
patent: 1972428 (1934-09-01), Richard
patent: 3961620 (1976-06-01), Schack et al.
patent: 5092345 (1992-03-01), Sakita
patent: 5152279 (1992-10-01), Wilk

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