Trephine and method
Patent 4763651 Issued on August 16, 1988. Estimated Expiration Date: 
January 14, 2006. 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.
January 14, 2006. 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 1043408 1837067 2249906 2473968 2818852 Contact lens corneal cutter Cam-guided trephine Surgical apparatus for precisely cutting out the cornea Cornea incision device Patent #: 4526171 InventorsApplicationNo. 06/818737 filed on 01/14/1986US Classes:606/166Corneal cutter or guide for corneal cutterExaminersPrimary: Friedman, Carl D.Assistant: Safavi, Michael Attorney, Agent or FirmInternational ClassesA61F 9/007 (20060101)A61F 9/013 (20060101) AbstractA trephine for cutting a groove in the cornea of an eye comprising a fixation member and a shaft having first and second blades mounted thereon. The fixation member includes a bearing, and the shaft is receivable within the bearing. The fixation member can be affixed to the eye, and the shaft, when received in the bearing, is rotatable in the bearing so that the blades can make cuts in the cornea. By making cuts in the cornea which intersect, a segment of the cornea can be removed to provide the groove. | |
