A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 35/00 (2006.01) A61K 31/00 (2006.01)
Patent
CA 2544291
The invention concerns a transdermal delivery system for controlled dispensing of an active substance to and through a porous surface. A certain amount of fluid comprising at least one active substance and at least one solvent is dispensed into an administration reservoir. In the administration reservoir the at least one solvent is separated from the administration reservoir by a solvent recovery means such that the active substance achieves a certain level on an interface device which is permeable for the one active substance. Thereby the active substance is absorbable via diffusion from the interface device by a porous surface to be treated.
Système d'administration transdermique pour la libération contrôlée d'une substance active sur une surface poreuse et à travers ladite surface. Une certaine quantité de fluide, comportant au moins une substance active et au moins un solvant, est délivrée dans un réservoir d'administration. Dans ce réservoir, le ou les solvants sont séparés du réservoir par un moyen de récupération de solvant, de sorte que la substance active atteigne un certain niveau sur un dispositif d'interface perméable à cette substance. Ladite substance active peut être absorbée par diffusion à partir du dispositif d'interface par une surface poreuse devant être traitée.
Di Pierro Guy
Imanidis Georgios
Van de Venn Hans Wernher
Zumbrunn Werner
Kerr & Nadeau
University Of Basel
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