Medical laser apparatus and diagnosing/curing apparatus...

A - Human Necessities – 61 – N

Patent

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A61N 5/06 (2006.01) A61B 6/00 (2006.01) A61N 5/067 (2006.01)

Patent

CA 2112444

-1- Medical laser apparatus for use in photodynamic diagnosis and photodynamic therapy of cancer uses laser light. The apparatus can achieve diagnosis and treatment with a single laser light source. The apparatus uses a semiconductor laser that generates light with a narrow full width at half maximum and which has a variable wavelength. The laser light is projected into the vicinity of the focus of a tumor. Fluorescence emitted from a photosensitizer excited by the irradiating laser light is separated, analyzed and displayed. The apparatus is simpler and more effective than prior versions.

Appareil médical, utilisé pour l'établissement d'un diagnostic et une thérapie photodynamiques du cancer, se servant de la lumière laser. L'appareil peut établir un diagnostic et effectuer une thérapie au moyen d'une seule source de lumière laser. Il utilise un laser à semi-conducteur dont le faisceau de lumière est étroit à mi-hauteur et dont la longueur d'ondes est variable. La lumière laser est projetée à proximité du foyer d'une tumeur. La fluorescence, émise par un photosensibilisant excité par la lumière laser rayonnante, est décomposée, analysée et affichée. L'appareil est plus simple et plus efficace que les modèles antérieurs.

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