Ophthalmic instrument for cataract surgery

Details Ophthalmic instrument for cataract surgery Ophthalmic instrument for cataract surgery

1996-10-18

1999-01-19

Apley, Richard J.

Surgery

Instruments

Means for removing, inserting or aiding in the removal or...

606205, 606207, 30186, A61F 0900

Patent

active

058609857

ABSTRACT:
An ophthalmic instrument for removal of the natural cataractogenious lens includes a distal end portion configured to be received through a small incision into the anterior capsule of the eye. This distal end portion includes a pair of opposed jaw portions movable by manual manipulation of a pair of handle portions defined on a proximal portion of the instrument. One of the opposed jaw portions is perforate to more effectively fracture the cataractogenious lens. One of the opposed jaws may include a conduit allowing irrigation liquid to be supplied into the eye, while the other opposed jaw may include a conduit allowing aspiration of irrigation liquid and fractured particles of the lens. Because the small incision may fit relatively tightly around the instrument, fluid loss from the eye is minimized.

REFERENCES:
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patent: 3116770 (1964-01-01), Tanuma
patent: 3404677 (1968-10-01), Springer
patent: 3916909 (1975-11-01), Kletschka et al.
patent: 4300564 (1981-11-01), Furihata
patent: 4960418 (1990-10-01), Tennant
patent: 5002554 (1991-03-01), Korber
patent: 5269790 (1993-12-01), Funatsu

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