Systems and methods for photodynamic therapy

Details Systems and methods for photodynamic therapy Systems and methods for photodynamic therapy

A - Human Necessities

61

K

A61K 41/00 (2006.01)

Patent

CA 2473924

Systems and methods for performing photodynamic therapy wherein a photoreactive agent is delivered locally and activated with an external non- invasive energy source are provided. In one embodiment, a low energy light source is used to initiate fluorescence in target tissue containing photoreactive agent. The characteristic fluorescence of the abnormal target tissue is used to generate a map that is then used to direct targeted activation energy to the target tissue without collateral damage to healthy tissue.

L'invention concerne des systèmes et des procédés permettant d'effectuer une thérapie photodynamique, dans laquelle un agent photoréactif est administré localement et activé au moyen d'une source d'énergie non invasive extérieure. Dans un mode de réalisation, une source de lumière de faible énergie est utilisée pour provoquer une fluorescence dans le tissu cible contenant un agent photoréactif. La fluorescence caractéristique du tissu cible anormale est utilisée pour générer une carte qui est ensuite utilisée pour diriger une énergie d'activation ciblée sur le tissu cible sans créer de lésion collatérale sur le tissu sain.

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