Device for simultaneously forming two incisions along a path on an eye
June 3, 2008. 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 2249906 3628522 Contact lens corneal cutter Surgical method for altering the curvature of the cornea of rabbits Servoelectric micromanipulator for movement on spherical coordinates Device for marking out the cornea in ophthalmosurgical operations Cam-guided trephine Surgical apparatus for precisely cutting out the cornea Hand supported surgical instrument Cornea incision device InventorAssigneeApplicationNo. 07/202223 filed on 06/03/1988US Classes:606/166, Corneal cutter or guide for corneal cutter30/300, Sweep cutter33/27.01Curved lineExaminersPrimary: Thaler, Michael H.Assistant: Lewis, William Attorney, Agent or FirmInternational ClassesA61F 9/013 (20060101)A61F 9/007 (20060101) AbstractAn ophthalmic device includes a base, a suction ring connected to the base to secure the device to the eye of a patient, and a support piece carrying a pair of securely ganged cutting blades having cutting edges oriented at an angle with respect to one another. The support piece can be raised and lowered with respect to the eye surface, and rotated around the base to simultaneously form two incisions along a path on the eye. The device includes a mechanism for progressively advancing the two cutting blades together in the support piece, while maintaining a constant angular cutting edge relative orientation, to a position in which the cutting points of the two cutting blades are touching, and can thus be used to form an annular wedge-like cut of eye tissue in the treatment of refractive errors. In alternative embodiments, laser or electrosurgical knives may be used instead of cutting blades. | |
