Method and apparatus for operating a cornea
Patent 5616139 Issued on April 1, 1997. Estimated Expiration Date: 
July 20, 2014. 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.
July 20, 2014. 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 3769963 Corneal-shaping electrode Liquid dispensing apparatus Apparatus for ophthalmological surgery Infusion instrument Surface shaping using lasers Gas purging, eye fixation hand piece Suction ring for surgical operations on the human eye Patent #: 5108412 InventorApplicationNo. 256547 filed on 07/20/1994US Classes:606/4OphthalmicExaminersPrimary: Sykes, Angela D.Assistant: Ogugua, Sonya Harris Attorney, Agent or FirmForeign Patent References
International ClassesA61F 009/00A61N 005/00 Foreign Application Priority Data1992-11-20 JPAbstractMethod and apparatus of operating the cornea by using an ultraviolet laser, such as an excimer laser, for correcting an abnormal curvature of the cornea, such as myopia, hyperopia, and astigmatism, or for treating opacity of the cornea, uses a cooling device for cooling the cornea before, during, or after the operation, or all three. A liquid medicine for promoting healing is sprinkled or sprayed onto the cornea using a sprinkling device, which can be incorporated in the cooling device. A laser beam is irradiated after the excess liquid medicine is removed from the cornea using a suction device, which can also be incorporated in the cooling device. Due to the cooling of the cornea and the medicine application, the undesirable side effects from a photochemical reaction of the laser beam can be reduced.Field of SearchOphthalmicRecurving or reshaping of the eye Cataracts or glaucoma With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissue Gas application Gas mixed with other material Means for treating eye or surface of ocular cavity Having means for scavenging liquid after contact with eye Having means for metering liquid flow to eye Having means for positioning liquid dispenser relative to eye Eye cup Guard or guide | |
