Triaxial fiberoptic soft tissue retractor

Details Triaxial fiberoptic soft tissue retractor Triaxial fiberoptic soft tissue retractor

1976-06-10

1977-10-11

Michell, Robert W.

Surgery

Truss

Perineal

128 20, A61B 106

Patent

active

040529800

ABSTRACT:
A surgical retractor instrument having a first pair of fingers of small diameter fixed to one end of a handle and extending therefrom in essentially parallel relation in a lateral direction, the fingers being joined at their extremities to form an open loop. A second pair of fingers, also of small diameter, pivotally secured to the handle near the first pair of fingers and extending in the same general direction as the first pair of fingers, the extremities of the second pair of fingers terminating in closed loops, the loops of the second pair of fingers being movable between a retracted contiguous position within the open loop joining the first pair of fingers and an extended position forming with the open loop the apeces of a triangle. The second pair of fingers being spring biased to the contiguous position and movable by a lever extending along the handle. The lever being manually engageable to spread the closed loops toward their extended position, and engage a latch pin extending from the handle to maintain the closed loops in their extended position. The surgical instrument, when the open loops are in contiguous relation is insertable into a small entrance incision formed in a patient, and after insertion is expandable to retract the walls of the surrounding cavity in the patient and enlarge the cavity for surgical operation. The instrument including a fiberoptic light for illuminating the cavity.

REFERENCES:
patent: 786457 (1905-04-01), McGinnis
patent: 2809628 (1957-10-01), Jonas
patent: 3616792 (1971-11-01), Pleet

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