Destruction for unwanted tissue by deep laser heating of water
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United States of America Patent
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Jul 4, 2000
Issued Date -
N/A
app pub date -
Oct 14, 1997
filing date -
Nov 29, 1995
priority date (Note) -
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Abstract
A process for destroying relatively deep formations of unwanted sub-epidermal tissue by heating water in the formations with a laser to denature proteins therein. In an exemplary embodiment, a laser beam is operated to irradiate a target region of highly vascularized dermal tissue in a blood-circulating living being, such as a human. The laser light preferably has a wavelength of about 1.45-1.68 .mu.m. This operating parameter provides the laser beam with a low enough water absorption coefficient to facilitate adequate penetration in to the target area while still providing enough energy to heat water to a temperature capable of spatially conforming vascularized tissue in the target area.
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