Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Light application
Patent
1998-10-16
2000-05-09
Dvorak, Linda C. M.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Light application
606 9, 606 20, A61N 2100
Patent
active
060598204
ABSTRACT:
A laser treatment device and process with controlled cooling. The device contains a rod with high heat conduction properties, which is transparent to the laser beam. A surface of the rod is held in contact with the tissue being treated and other surfaces of the rod are cooled by the evaporation of a cryogenic fluid. The cooling is coordinated with the application of the laser beam so as to control the temperatures of all affected layers of tissues. In a preferred embodiment useful for removal of wrinkles and spider veins, the rod is a sapphire rod. A cryogenic spray cools the walls. A first surface is in contact with the skin surface being treated and an opposite surface is contained in an anticondensation oil chamber that is optically connected to a laser beam delivering fiber optic cable. In this preferred embodiment the temperature of the rod is monitored with a thermocouple which provides a feedback signal to a processor which controls the cooling and the laser power to provide proper regulation of temperatures at all affected tissue layers.
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Dvorak Linda C. M.
Han-Ogugua Soyu
Paradigm Medical Corporation
Ross John R.
Ross III John R.
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