Surgery – Instruments – Corneal cutter or guide for corneal cutter
Patent
1991-07-03
1993-12-14
Pellegrino, Stephen C.
Surgery
Instruments
Corneal cutter or guide for corneal cutter
606171, A61B 1732
Patent
active
052697959
ABSTRACT:
A trephine device for removing anterior epithelial cells from a corneal surface, typically prior to laser excimer reshaping of a portion of the corneal surface, comprises a housing having upper and lower end portions, removal means integral to the housing, and means for activating and deactivating the removal means. The removal means may have at least one cutting surface adapted to conform substantially to the shape of the cornea, with the cutting surface contacted with the cornea at a pressure sufficient to remove the anterior epithelial cells without affecting underlying corneal tissue.
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Lewis Wm.
Pellegrino Stephen C.
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