Ocular surgical system

Details Ocular surgical system Ocular surgical system

1975-10-03

1977-07-26

Crowder, Clifford D.

Surgery

Truss

Perineal

128303R, A61B 1702

Patent

active

040375897

ABSTRACT:
A system for retracting and retaining the iris of the eye in a dilated position and which is composed of two basic components. The first component is a speculum for maintaining the eyelids apart and to which is attached a first retaining device. The first device has a flat, elongated shaft with one end curved so that when it is inserted through an incision in the cornea, it will engage the edge of the iris for retraction thereof. The shaft is mounted in a resilient material, such as silicone, which is encased in a metallic shell attached to the speculum. The second component is formed from a length of wire which is bent at one end to form a hook and at its other end to form a handle. A flexible shield, formed of silicone or the like, is snugly disposed about the shaft of the wire and movable between the two ends so that when the hook is inserted through a corneal incision, the shield may be held against the incision to seal it as the wire is withdrawn to retract the iris, and then retain the wire in place after desired retraction without further retention means.

REFERENCES:
patent: 1230873 (1917-06-01), Crossley
patent: 2013892 (1935-09-01), Lucas
patent: 2438646 (1948-03-01), Pulliam
patent: 2701562 (1955-02-01), Michael et al.
patent: 2702540 (1955-02-01), Debeh
patent: 2845925 (1958-08-01), Jayle
patent: 3046988 (1962-07-01), Moreau et al.
patent: 3490455 (1970-01-01), Illig
patent: 3762401 (1973-10-01), Tupper
patent: 3857386 (1974-12-01), Ashbell

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