Laser ablation process and apparatus
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United States of America Patent
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-
Nov 22, 1988
Grant Date -
N/A
app pub date -
Jan 8, 1987
filing date -
Jan 8, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process and apparatus for ablating atherosclerotic or tumorous tissues is disclosed. Optical fibers direct low power light energy at a section of tissue to be ablated to cause the section to fluoresce. The fluorescence pattern is analyzed to determine whether the fluorescence frequency spectrum is representative of normal or abnormal tissue. A source of high power ultraviolet laser energy directed through an optical fiber at the section of tissue is fired only when the fluorometric analysis indicates that it is directed at abnormal tissue.
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