Noncontact laser microsurgical apparatus
Patent 5281211 Issued on January 25, 1994. Estimated Expiration Date: 
November 6, 2011. 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.
November 6, 2011. 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 ReferencesApparatus for performing ophthalmic laser surgery Cornea laser-cutting apparatus Noncontact laser microsurgical apparatus Patent #: 5152759 InventorsAssigneeApplicationNo. 788513 filed on 11/06/1991US Classes:606/5, Recurving or reshaping of the eye606/2, Light application606/4, Ophthalmic606/13, Applicators606/17With beam shaping or redirecting (e.g., lens)ExaminersPrimary: Shay, David M.Attorney, Agent or FirmForeign Patent References
International ClassA61N 005/02AbstractA noncontact laser microsurgical apparatus and method for marking a cornea of a patient's or donor's eye in transplanting surgery or keratoplasty, and in incising or excising the corneal tissue in keratotomy, and for tissue welding and for thermokeratoplasty. The noncontact laser microsurgical apparatus comprises a laser source and a projection optical system for converting laser beams emitted from the laser source into coaxially distributed beam spots on the cornea. The apparatus further includes a multiple-facet prismatic axicon lens system movably mounted for varying the distribution of the beam spots on the cornea. In a further embodiment of the method of the present invention, an adjustable mask pattern is inserted in the optical path of the laser source to selectively block certain portions of the laser beams to thereby impinge only selected areas of the cornea.Field of SearchBeam energy control or monitoringApplicators Mirror Angioplasty Light application Placed in body With beam shaping or redirecting (e.g., lens) Ophthalmic Systems With particular wavelength Dermatological With optical fiber With optical fiber Anastomosis Lithotripsy Cataracts or glaucoma Articulated arm Condition responsive Recurving or reshaping of the eye | |
