A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
327/1.2
A61N 5/06 (2006.01) A61B 18/24 (2006.01) A61B 17/00 (2006.01)
Patent
CA 2003535
-83- ABSTRACT OF THE DISCLOSURE A system for distinguishing healthy tissue from diseased tissue for purposes of controlling a treatment laser to reopen a channel in blood vessels. The system uses predetermined reference data that the define the fluorescent optical characteristics of healthy tissue such as non atherosclerotic blood vessel wall. The tissue to be distinguished is excited to fluorescence by excitation light from a laser. The fluorescent light caused thereby is detected to determine its optical characteristics such as peak intensity, wavelength at the peak and shape of the spectrum. These optical characteristics are compared to the optical characteristics of known healthy tissue. If this comparison indicates that the tissue emitting the fluorescent light is probably diseased tissue such as plaque, one or more pulses of laser light is guided through a fiber optical waveguide to ablate the diseased tissue. Criteria for determining whether the tissue under treatment is normal may be derived from data generated from abnormal tissue samples. In a broader embodiment, the method includes steps for clinical treatment of a variety of medical problems, without restriction to a particular type, by implementing a problem solving technique derived from the particular laser angioplasty technique.
House Michael D.
Macy William W. Jr.
Murphy-Chutorian Douglas R.
Ade & Company
House Michael D.
Macy William W. Jr.
Mcm Laboratories Inc.
Murphy-Chutorian Douglas R.
LandOfFree
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