Surgery – Truss – Perineal
Patent
1974-12-26
1976-03-16
Yasko, John D.
Surgery
Truss
Perineal
128305, A61B 1000
Patent
active
039439160
ABSTRACT:
An instrument for cold conization of the cervix includes a pair of round nose, pivoted blades which are advanced by a camming mechanism as the instrument is rotated. During rotation of the blades they are progressively cammed to their closed position by a sliding actuator, thereby providing a continuous helicoid cut. The blade operating mechanism does not protrude beyond the diameter of the blades themselves at any time. In one form of the invention a screw mechanism causes automatic advance of the blades to produce a helicoid cut upon rotation of the body by the actuator.
REFERENCES:
patent: 3147749 (1964-09-01), Marsh
patent: 3357422 (1967-12-01), Creelman
patent: 3628522 (1971-12-01), Kato
patent: 3702611 (1972-11-01), Fishbein
Tripp C. E.
Yasko John D.
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