Method of treating veins
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United States of America Patent
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Jun 4, 1996
Grant Date -
N/A
app pub date -
Sep 23, 1994
filing date -
Sep 23, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of treating vascular lesions is disclosed which includes using a focused beam from a high energy, carbon dioxide laser to irradiate a spot on the surface of the skin over the vessel to be treated. The carbon dioxide output wavelength is highly absorbed by the tissue. By using short, high energy pulses, a small volume of skin can be vaporized or ablated with each pulse with little thermal damage beyond the ablated region. Using multiple pulses, a small channel is drilled in the skin until the vessel is reached. The laser energy absorbed by the blood in the vessel will cause it to coagulate and collapse. This procedure is then repeated at multiple sites along the length of the vessel so that it will collapse and no longer carry any blood.
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