Cryogenic laser lithotripsy with enhanced light absorption
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United States of America Patent
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May 5, 1998
Grant Date -
N/A
app pub date -
Aug 9, 1995
filing date -
Aug 9, 1995
priority date (Note) -
Expired
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Abstract
A target region of tissue is destroyed by saturating the region with light-absorbing material, reducing the temperature of the region, and disintegrating the region with a light source. One means for carrying out these steps is a multi-channel delivery needle having a primary transport line, a waveguide lengthwise connected to the primary transport line, and one or more auxiliary lines lengthwise connected to the primary transport line. The tubes and waveguide define a sharpened common end to assist the needle in entering the skin and penetrating flesh necessary to reach the target region.
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