Transdermal systems for the delivery of therapeutic agents...

A - Human Necessities – 61 – N

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A61N 1/30 (2006.01)

Patent

CA 2608471

A disposable skin-worn device for the transdermal delivery at least one dose of charged therapeutic substances, including granisetron, by iontophoresis, the device comprising a donor reservoir containing an amount of a therapeutic substance to be delivered transdermally by iontophoresis, a counter reservoir, a source of electric power connected in a circuit between the donor reservoir and the counter reservoir and a control system for controlling current flow in the circuit to enable at least one dose of the therapeutic substance to be delivered transdermally by iontophoresis and wherein the control system includes a control element selected from the group consisting of a sensor activated by an external signal and a switch.

L'invention concerne un dispositif jetable se portant sur la peau en vue de l'administration transdermique par ionophorèse d'au moins une dose de matières thérapeutiques chargées, y compris le granisétron. Le dispositif comprend un réservoir donneur contenant une quantité de matière thérapeutique s'administrant par voie transdermique par ionophorèse; un contre-réservoir; une source d'alimentation électrique connectée dans un circuit, entre le réservoir donneur et le contre-réservoir; et un système de commande permettant de régler le débit dans le circuit afin d'administrer par voie transdermique par ionophorèse au moins une dose de la matière thérapeutique. Le système de commande comprend un élément de commande sélectionné entre un capteur activé par un signal externe et un commutateur.

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