Method of selective photothermolysis

Details Method of selective photothermolysis Method of selective photothermolysis

A - Human Necessities

61

N

A61N 5/00 (2006.01) A61B 18/20 (2006.01)

Patent

CA 2330029

A method and device for selective photothermolysis of a surgical target within surrounding tissue. The target and the surrounding tissue are heated to about 60 ~C. Then the target is heated to the point of coagulation, preferably by monochromatic light. The temperature difference between the coagulating target and the surrounding tissue is sufficiently mild that heat diffusing out of the target does not damage the surrounding tissue, even in the case of a relatively large target such as varicose veins.

Cette invention concerne un procédé et un dispositif qui permettent de mener une photothermolyse sélective sur une cible chirurgicale se trouvant au milieu de tissus environnants. La cible et les tissus environnants sont chauffés à une température d'environ 60 ·C, après quoi la cible est chauffée jusqu'au point de coagulation en utilisant, de préférence, une lumière monochrome. La différence de température entre la cible qui se coagule et les tissus environnants est suffisamment réduite pour que la chaleur qui se dissipe hors de la cible n'endommage pas les tissus environnants, ceci même dans le cas d'une cible relativement grande telle que des veines variqueuses.

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