A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
128/126, 326/3
A61B 6/08 (2006.01) A61B 17/22 (2006.01) A61B 18/24 (2006.01) A61K 31/40 (2006.01) A61M 29/02 (2006.01) A61B 17/00 (2006.01) A61B 18/22 (2006.01) A61B 19/00 (2006.01)
Patent
CA 1244091
ABSTRACT A treatment of atherosclerosis in a mammal by destruction of atheromatous plaque is disclosed, which includes injecting a hematoporphyrin into the mammal for selective uptake into the atheromatous plaque, and deli- vering light to the diseased vessel so that the light activates the hematoporphyrin for lysis of the plaque. A balloon catheter for carrying out the method is equipped with flexible optical fibres for transmission of light from an external source for illumination of the interior of the inflated balloon. By inflation of the balloon, the opaque blood between the balloon and the atheromatous plaque is displaced to faciliatate activation of the hematoporphyrin. The balloon may be illuminated and in- flated and deflated in a cycle responsive to the patient's pulse so as to minimize interference with blood flow.
441530
Beth Israel Hospital Association (the)
Ridout & Maybee Llp
LandOfFree
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