Pupil dilator

Details Pupil dilator Pupil dilator

1995-01-31

1997-03-04

Buiz, Michael

Surgery

Instruments

Internal pressure applicator

600206, 604107, A61B 1700

Patent

active

056074468

ABSTRACT:
An instrument is disclosed for dilating the pupil of an eye. The instrument includes a handle and a switch mounted on the handle for alternating between first and second states. A retractable dilator mechanism is attached to the switch and is extendible from the handle. The dilator mechanism selectively alternates between a retracted condition when the switch is in a first state and an expanded condition when the switch is in its second state. The dilator mechanism includes hooks, a nylon ribbon or an inflatable spiral tube for engaging a plurality of points along an inside edge of the pupil and urging the pupil into a dilated condition when the dilator mechanism is expanded.

REFERENCES:
patent: 4654028 (1987-03-01), Suma
patent: 4909789 (1990-03-01), Taguchi et al.
patent: 5195506 (1993-03-01), Hulfish
patent: 5450842 (1995-09-01), Tovey et al.

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