Ophthalmic surgery system
Patent 4648400 Issued on March 10, 1987. Estimated Expiration Date: 
May 6, 2005. 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.
May 6, 2005. 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 ReferencesInventorsAssigneeApplicationNo. 06/731121 filed on 05/06/1985US Classes:606/3, With particular wavelength219/121.61, Beam energy control219/121.74, With mirror219/121.75, With lens219/121.83, With monitoring606/12, Condition responsive606/18, Mirror606/5Recurving or reshaping of the eyeExaminersPrimary: Cohen, Lee S.Attorney, Agent or FirmInternational ClassesA61F 9/01 (20060101)A61F 9/007 (20060101) A61F 9/008 (20060101) AbstractAn ophthalmic surgery system (10) for performing corneal keratotomies and resectomies utilizes a light source (12) which generates a pulsed beam in the ultraviolet/vacuum ultraviolet region. The beam is received by a sealed base unit (16) and attached rotatable subunit (18) which shape, focus, and project the beam onto a protective mask (20) mounted directly on the eye (22) of a patient. The mask (20) includes a normally closed shutter (148) which opens responsive to a counter (32) positioned along the beam path and sensors (156) positioned on opposite sides of a control slit (154) to apply a predetermined number of pulses while the mask is aligned to effect precise cutting of the cornea to the desired depth.Other References
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