Calipers for use in ophthalmic surgery

Details Calipers for use in ophthalmic surgery Calipers for use in ophthalmic surgery

1994-07-26

1996-01-16

Rimell, Sam

Surgery

Instruments

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

606107, 606198, 606205, 33511, A61B 1700

Patent

active

054844479

ABSTRACT:
A caliper for ophthalmic surgery comprises a pair of arms which are relatively pivotable, with each arm terminating at one end in a tip, and with the tips being movable between closed and open positions upon pivotal movement of the arms. The amount of pivoting movement is controlled by an adjuster and a scale is provided to give an indication of the amount of tip separation. The tips of the arms are adapted to be insertable into an incision in eye tissue and to open the incision to a predetermined dimension to permit the insertion of an ocular lens. The tips may open the incision just by a stretching of the eye tissue, for subsequent insertion of the lens, or alternatively the tips may be provided with one or two diamond blades which open the incision by a cutting of the eye tissue.

REFERENCES:
patent: 1221668 (1917-04-01), Brunton
patent: 1226337 (1917-05-01), Lackner
patent: 1303797 (1919-05-01), Walton
patent: 1528273 (1925-03-01), Shwed
patent: 3740779 (1973-06-01), Rubricuis
patent: 4127112 (1978-11-01), Sherlock et al.
patent: 4390059 (1982-07-01), Marinoff
patent: 5235748 (1993-08-01), Jahn

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