Light delivery device that provides a radial light output...

A - Human Necessities – 61 – N

Patent

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A61N 5/06 (2006.01)

Patent

CA 2715813

A light delivery device (100) comprising an optical fiber (10) having a non- feature portion (16) and a feature portion (18) having features (20) that force light to couple out radially from the feature portion (18) and provide a desired radial light output pattern. A method of photodisinfection of a cavity comprising of providing this device (100), apply a photosensitizing composition (48) to treatment site within the cavity, and inserting at least a portion of the device (100) into the cavity; and applying light delivered by the device (100) from a light source to the treatment site within the cavity at a wavelength absorbed by the photosensitizing composition so as to inhibit or eliminate microbes located at the treatment site. The present invention also includes a method of making the device and a treatment kit containing the device (100) and a container (50) containing a photosensitizing composition (48).

L'invention porte sur un dispositif de distribution de lumière (100), comportant une fibre optique (10) ayant une partie non caractéristique (16) et une partie caractéristique (18) ayant des caractéristiques (20) qui forcent la lumière à s'extraire de façon radiale de la partie caractéristique (18) et fournit le motif radial d'émission de lumière voulu. L'invention porte également sur un procédé de photodésinfection d'une cavité qui comporte lutilisation de ce dispositif (100), l'application d'une composition photosensible (48) au site de traitement à l'intérieur de la cavité et l'introduction d'au moins une partie du dispositif (100) dans la cavité, et l'application de la lumière distribuée par le dispositif (100) d'une source de lumière au site de traitement à l'intérieur de la cavité à une longueur d'onde absorbée par la composition photosensible, de façon à inhiber ou éliminer des microbes situés sur le site de traitement. La présente invention porte également sur un procédé de fabrication du dispositif et sur un kit de traitement contenant le dispositif (100) et un contenant (50) qui contient une composition photosensible (48).

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