Cam-guided trephine

Details Cam-guided trephine Cam-guided trephine

1982-02-26

1984-01-03

Rosenbaum, C. Fred

Surgery

Truss

Pad

33 27K, 33 27R, A61B 1716

Patent

active

044237286

ABSTRACT:
A cam-guided trephine for selectively cutting a portion of an eye provides a first, vertically disposed blade to provide an annular cut of essentially any practical shape, diameter and depth, while concurrently allowing a second, angled blade, to simultaneously provide a circular cut of substantially any practical angle, diameter, and depth. Each of the blades may be individually controlled by the surgeon, alternately and progressively lowered onto the eye during series of rotations.

REFERENCES:
patent: 2249906 (1941-07-01), Longovia
patent: 3537345 (1970-11-01), Luppino
patent: 3628522 (1971-12-01), Kato
patent: 4085508 (1978-04-01), Gyongyosi
patent: 4205682 (1980-06-01), Crock
patent: 4342951 (1982-08-01), Muller
"A New Corneal Trephine" Liberman, M.D., American Journal of Opthamology, May, 1976, pp. 684-685.

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