Surgery – Truss – Pad
Patent
1979-11-01
1981-11-17
Michell, Robert W.
Surgery
Truss
Pad
128 4, 128328, A61B 1728, A61B 100
Patent
active
043005640
ABSTRACT:
A forceps for extracting stones in the pelvis of a kidney comprises a pair of shanks pivotally connected to each other and each having a finger ring at one end, a pair of arms extending from the other ends of the respective shanks away from the finger rings and being curved to deviate from the plane in which the finger rings are moved toward each other and away from each other, and a pair of stone-clamping members secured to the free ends of the arms, respectively, one of said stone-clamping members being a tubular member into which a telescope is inserted. The field of view of the telescope can be widened by moving the stone-clamping members away from each other, making it possible to correctly perceive both size and position of a stone in the pelvis of the kidney. While observing the stone through the telescope, the operator can easily and quickly hold the stone between the clamping members.
REFERENCES:
patent: 2208369 (1940-07-01), Held
patent: 2243057 (1941-05-01), Wolf
patent: 2911968 (1959-11-01), Schueler et al.
patent: 2994321 (1961-08-01), Tischler
patent: 3008467 (1961-11-01), Morris
patent: 4049002 (1977-09-01), Kletschka et al.
patent: 4177814 (1979-12-01), Knepshield et al.
Sklar Surgical Instruments Catalogue, Suction & Pressure Apparatus 18th Edition (1973).
Michell Robert W.
Olympus Optical Co,. Ltd.
Thaler Michael H.
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