Surgery – Instruments – Light application
Patent
1997-11-03
2000-03-07
Dvorak, Linda C. M.
Surgery
Instruments
Light application
606 13, A61B 1736
Patent
active
060333952
ABSTRACT:
A system and method for using an infrared laser and, in particular, an Er:YAG laser to modify an interior or exterior surface of a live cornea, and then a tool to physically remove (e.g., erode) a coagulated portion of the cornea that is created due to irradiation of the cornea by the laser light. The tool includes a tip made of any suitable type of material that can be used to physically remove all or substantially all of the coagulated portion of the cornea, while not removing any or essentially any of the underlying corneal tissue. An irrigation/aspiration system can be used in conjunction with the tool to facilitate removal of the coagulated portion of the cornea. Furthermore, a fluid delivery system can be used to deliver a fluid which physically removes the coagulated portion of the cornea. These tools and fluid delivery systems can alternately be used to remove substantially all of the coagulated corneal tissue, and then another tool, such as, a fluid delivery system type tool or a tool having a tip made of a different material, can be used to remove the remaining portion of the coagulated area and polish the underlying remaining corneal tissue exposed after the coagulated area has been removed.
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Dvorak Linda C. M.
Gibson Roy
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