Cornea laser-cutting apparatus
Patent 4887592 Issued on December 19, 1989. Estimated Expiration Date: 
June 2, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 2, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3096767 3419321 3534462 3710798 3848970 Acoustooptic mode-locker frequency doubler Laser beam aligning apparatus Apparatus for machining material Apparatus and process for recurving the cornea of an eye Method and apparatus for removing cataractous lens tissue by laser radiation InventorApplicationNo. 056711 filed on 06/02/1987US Classes:606/5, Recurving or reshaping of the eye219/121.6, Using laser219/121.7, Hole punching219/121.78, Beam position control606/18MirrorExaminersPrimary: Cohen, Lee S.Assistant: Shay, David M. Attorney, Agent or FirmInternational ClassA61N 005/06AbstractA cornea laser-cutting apparatus adapted for use in cutting out a cornea of patient's or donor's eye in full thickness cornea transplanting surgery or keratoplasty. The cornea laser-cutting apparatus comprises an HF or Er-YAG laser source and a projection optical system for converging laser beams radiated from the laser source in a ring-like shape on the cornea, and includes an axicon lens or mirror movably mounted for varying the size of the ring-like shape.Other References
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