Apparatus and method for activating photoactive agents

Details Apparatus and method for activating photoactive agents Apparatus and method for activating photoactive agents

A - Human Necessities

61

M

A61M 1/36 (2006.01) A61K 41/00 (2006.01) A61L 2/08 (2006.01) A61N 5/06 (2006.01)

Patent

CA 2173340

The present invention provides improved methods and apparatus for irradiating a product with light of specific wavelength to activate the photoactive agent that is contained in the product. To this end, in an embodiment, a device (22, 24) is provided that comprises a source of radiation including a plurality of light emitting diodes (36). Each light emitting diode includes a body portion through which radiation is transmitted. The body of the diode (36) is surrounded by a fluid (43). In this regard, a first housing (26) is provided that includes an interior (34) that contains the light emitting diodes (36) and a fluid (43). The housing (26) includes a transparent window (42) for allowing radiation generated by the light emitting diodes (36) to flow through the window (42) and irradiate a product (18) that is in juxtaposition to the window (42).

La présente invention se rapporte à des procédés et appareils améliorés permettant d'irradier un produit avec une lumière d'une longueur d'onde spécifique afin d'activer l'agent photosensible contenu dans ce produit. Dans un mode de réalisation, on utilise à cette fin un dispositif (22, 24) qui comprend une source de rayonnement présentant une pluralité de diodes électroluminescentes (36). Chacune de ces diodes comporte une partie de corps à travers laquelle le rayonnement est transmis. Le corps de la diode (36) est entouré par un fluide (43), lequel est contenu à l'intérieur (34) d'une première enveloppe (26) qui contient également les diodes (36). Cette enveloppe (26) est pourvue d'une fenêtre transparente (42) permettant au rayonnement généré par les diodes électroluminescentes (36) de la traverser et d'irradier un produit (18) juxtaposé à la fenêtre (42).

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