Surgery – Instruments – Means for removing – inserting or aiding in the removal or...
Patent
1989-10-03
1991-01-29
Cannon, Alan
Surgery
Instruments
Means for removing, inserting or aiding in the removal or...
623 6, A61B 1700, A61F 216
Patent
active
049883526
ABSTRACT:
An intraocular lens, folded on itself for insertion into an eye, is retained in the folded configuration by chilling until it becomes inflexible and loses its tendency to unfold. The folded, frozen lens is inserted into the eye and thaws in situ to restore it to its original unfolded configuration. The chilling obviates the need for special retaining means to hold the lens in the folded configuration for insertion, thereby facilitating the surgical procedure and enabling a smaller incision to be used. The lens may be frozen onto an inserter for positioning it within the eye. Apparatus for folding and freezing the lens is also disclosed.
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V. L. Bohn, "Soft IOL Technology", Ocular Surgery News, vol. 5, No. 5, Mar. 1, 1987, p. 1.
Brochure--Frigitronics CE-82; "An Advanced Ophthalmic Cryosurgical System", 1988.
Cannon Alan
Willse David H.
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