Lightpipe tip for contact laser surgery
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United States of America Patent
Stats
-
Dec 10, 1991
Issued Date -
N/A
app pub date -
Apr 24, 1990
filing date -
Dec 29, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A contact laser surgery tip for connection to a lightpipe conducting laser light. A hollow proximal end portion of the tip connects to the lightpipe. A hollow distal end portion is heated when it absorbs at least a portion of the laser light transmitted thereto by the proximal end portion. The proximal end portion of the tip is fabricated with an inner surface material having an index of refraction with a real part that is less than about 0.3. The surface material is coated with a reflectivity-enhancing thin film. The proximal end portion of the tip can include a sleeve on which is deposited the highly reflective inner surface material with the thin film coating. The tip is shaped and given material characteristics so that the distal end and proximal end portions can be selectively heated. The tip can include apertures for allowing the passage of a selected portion of laser light outwardly from the tip.
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