Process and apparatus for ophthalmic surgery
Patent 4309998 Issued on January 12, 1982. Estimated Expiration Date: 
June 8, 1999. 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 8, 1999. 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 3348547 3567325 3703176 3710798 3750670 3821510 3828788 3829791 3914013 Method of generating tunable coherent ultraviolet light at wavelengths below 2500 A InventorsApplicationNo. 06/046630 filed on 06/08/1979US Classes:606/3, With particular wavelength372/26, Modulation606/11, Beam energy control or monitoring606/6Cataracts or glaucomaExaminersPrimary: Cohen, Lee S.Attorney, Agent or FirmInternational ClassesA61B 18/20 (20060101)A61F 9/007 (20060101) A61F 9/008 (20060101) A61B 17/00 (20060101) Foreign Application Priority Data1978-06-08 FRAbstractProcess and apparatus for ophthalmological surgery, wherein the apparatus includes a laser having a beam of power greater than 1012 Watts/cm2 in one or more very short pulses of duration between 20 and 400 picoseconds. The laser beam is focussed by a strong conveying lens on tissue to be cut and has such low total energy that an optical puncture is produced without any notable thermal action. The apparatus employs a Q-switched YAG laser, with a helium-neon laser producing a registering or alignment beam. The laser beams are applied to a conventional slit lamp to enable them to be aligned at the target tissue, an electronic pulse selector may be included to select the exact number of pulses to be applied to the target.Other References
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