Device for expanding the pupil of a human eye

Details Device for expanding the pupil of a human eye Device for expanding the pupil of a human eye

1991-04-04

1992-11-17

Rosenbaum, C. Fred

Surgery

Truss

Perineal

128 17, 623 4, 606107, A61B 1702

Patent

active

051634198

ABSTRACT:
The present invention includes a generally U-shaped body member having opposed leg portions joined by a central section. Each leg portion is connected to the central section at a pivot point for pivotal movement toward and away from each other. The body member is made of a resilient material having spring-like qualities to urge the legs away from each other. Each leg portion also has a distal end remote from the pivot points. Grooves are provided at at least three positions on the body member for engaging the inner edges of the iris of the human eye when the body member is inserted into the pupillary area. A receptor hole is located at each of the distal ends for receiving manipulative devices for causing the leg portions to be moved toward and away from each other between an expanded and a collapsed position. When the body member is in the collapsed position it may be inserted through an opening in the human eye for engagement with the iris for expansion of the pupillary area. The distance between the leg portions when in the expanded position is larger than the average diameter of the pupil of a human eye so that the pupil will expand when engaged by the leg portions.

REFERENCES:
patent: 1389436 (1921-08-01), Cameron
patent: 2238563 (1941-04-01), Jacques
patent: 4387706 (1983-06-01), Glass
patent: 4428746 (1984-01-01), Mendez
patent: 4782820 (1988-11-01), Woods
patent: 5030224 (1991-07-01), Wright et al.
patent: 5070860 (1991-12-01), Grounauer

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