Method and apparatus for improving safety during exposure to a monochromatic light source
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United States of America Patent
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Jul 27, 2010
Grant Date -
Oct 20, 2005
app pub date -
Aug 2, 2002
filing date -
Dec 10, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus are disclosed for enhancing the absorption of light in targeted skin structures. A vacuum chamber having a clear transmitting element transparent to intense pulsed light on its proximate end and an aperture on its distal end is placed on a skin target. After applying a vacuum to the vacuum chamber and modulating the applied vacuum, the concentration of blood and/or blood vessels is increased within a predetermined depth below the skin surface of the skin target. Optical energy associated with intense pulsed light directed in a direction substantially normal to a skin surface adjoining the skin target is absorbed within the predetermined depth. The apparatus is suitable for treating vascular lesions with a reduced treatment energy density level than that of the prior art and for evacuating condensed vapors produced during the cooling of skin prior to firing an intense pulsed light with a controlled delay.
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