Surgery – Instruments – Light application
Patent
1995-06-07
1997-04-08
Hindenburg, Max
Surgery
Instruments
Light application
A61N 506
Patent
active
056182848
ABSTRACT:
A method and apparatus for controlled thermal shrinkage of collagen tissue by irradiation with coherent energy in the wavelength band of 1.80 to 2.55 microns as generated by a laser. A specific application to ophthalmological corneal reshaping is described. A method for shrinkage of collagen tissue by application of coherent infrared energy, in which the threshold shrinkage temperature is substantially reduced by application of a reagent such as lysozyme to the tissue prior to heating. The method is especially useful in ophthalmology for shape modification of a cornea, and is enhanced by using a corneal collagen shield as a carrier and delivery agent for the reagent and an admixed anaesthetic.
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Hindenburg Max
Sunrise Technologies
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