Laser apparatus for concurrent analysis and treatment
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United States of America Patent
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Nov 27, 1990
Grant Date -
N/A
app pub date -
Jul 28, 1989
filing date -
Jul 28, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention discloses an apparatus in which two laser beams are concurrently scanned across a region of tissue to be treated by laser therapy. A first 'analysis' beam is used to excite characteristic light emission or reflection from the surface. This scattered light is detected and analyzed to determine the properties of the small portion of the surface under illumination and at that instant by the analysis beam. A second 'treatment' beam is scanned concurrently with the analysis beam. The properties of the surface at each small region (as determined by the analysis beam) are used to adjust the power and other properties of the treatment beam such that each small region of the surface receives optimal exposure. Automatic controlled scanning of both beams allows very rapid treatment of large areas of tissue, while adjusting in real-time the power levels of the lasers to achieve optimal treatment at each point treated.
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