Patent ID: 8440221
Filing Date: 2013-05-14
Classification: A61K,A61M

Abstract:
1. A device for transdermal administration of at least one active substance to a porous surface, comprising: (a) an administration reservoir; (b) a dispensing device interconnected to the administration reservoir for delivery of at least one active substance dissolved in a solvent to the administration reservoir, wherein the administration reservoir is suitable to receive the active substance dissolved in the solvent; (c) an interface configured to contact the porous surface and suitable for transferring the active substance from the administration reservoir to the porous surface; and (d) a solvent removal element configured to absorb solvent from the administration reservoir by evaporation when the interface is in contact with the porous surface, wherein the solvent removal element does not remove the active substance, and wherein the solvent removal element is not in contact with the interface; wherein the transfer of the active substance from the administration reservoir to the porous surface is controlled via the absorption of solvent by the solvent removal element.