Exothermic topical delivery device

Details Exothermic topical delivery device Exothermic topical delivery device

A - Human Necessities

61

F

A61F 7/03 (2006.01) A61M 37/00 (2006.01)

Patent

CA 2375643

The present invention relates to an exothermic device (500) for topically delivering an active agent comprising a liquid reservoir (220) comprising water, a heating element (210) comprising an oxidizable material, an oxygen-permeable outer-layer (250), an active agent, and a water-impermeable layer (130), wherein upon the rupturing of the liquid reservoir, the water contacts the heating element and the oxygen to create an exothermic reaction.

L'invention concerne un dispositif (500) exothermique permettant l'administration topique d'un principe actif. Ce dispositif comprend un réservoir (220) de liquide contenant de l'eau, un élément (210) chauffant comprenant un matériau oxydable, une couche (250) externe perméable à l'oxygène, un principe actif, et une couche (130) imperméable à l'eau. Après la rupture du réservoir de liquide l'eau entre en contact avec l'élément chauffant et l'oxygène et produit une réaction exothermique.

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