Surgery – Instruments – Light application
Patent
1995-11-28
2000-10-10
Shay, David M.
Surgery
Instruments
Light application
606 2, 606 5, 606 10, 606 17, A61N 506
Patent
active
061297232
ABSTRACT:
An apparatus and method for superficially ablating and/or photochemically altering a substrate, e.g., a biological tissue, having a first refractive index, e.g., to a desired configuration, including a laser energy source which provides laser energy to an energy coupling wave generator which generates laser energy waves from the laser energy, the generator having a surface adapted to contact and form an interface with the substrate and having a second refractive index higher than the first refractive index, wherein laser energy entering the wave generator impinges on the surface at an angle of incidence greater than or equal to a critical angle for total internal reflection when the surface is not contacting the substrate, and wherein the wave generator couples the laser energy waves, e.g., refracted or evanescent waves, into the substrate at the interface to superficially ablate the substrate when contacting the substrate.
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Anderson R. Rox
Domankevitz Yacov
Shay David M.
The General Hospital Corporation
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