Surgery – Instruments – Light application
Patent
1995-06-01
1998-01-13
Shay, David M.
Surgery
Instruments
Light application
606 17, 606 27, A61N 506
Patent
active
057073686
ABSTRACT:
A laser surgery apparatus including a contact tip comprising an input face having a surface for receiving laser energy from an optical waveguide directed along an axis of propagation. The surface is inclined relative to the axis of propagation such that an angle of incidence between the laser light and the surface is approximately equal to Brewster's angle. Another aspect of the invention includes coating a portion of the tip body with a coating that is reflective to the laser energy. One preferred embodiment comprises a tip body coated with a single coating consisting essentially of a material which is biologically compatible with tissue to prevent generation of a toxic tissue response. A further aspect of the invention includes a tip configuration having a generally conical exterior with a substantially flat surface disposed obliquely to a core axis of the tip body. An additional feature on the invention includes a shield to protect tissue adjacent to the shield from undesired thermal damage by preventing the transfer of thermal energy through the shield.
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Cozean Colette
Freiberg Robert J.
Premier Laser Systems, Inc.
Shay David M.
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