Transdermal system

Details Transdermal system Transdermal system

A - Human Necessities

61

M

A61M 37/00 (2006.01) A61N 1/30 (2006.01)

Patent

CA 2205444

A transdermal system (1) for delivering a substance through the skin (2) has a reservoir (11) which stores the substance for delivery and a transfer device which in operation is connected to both the reservoir and the skin by means of passage openings. This transfer device comprises a sheet substrate (12) with up to about 30 % porosity. When the substance is delivered using an electrical field, the substrate sheet is a poor electrical conductor or essentially a nonconductor.

Système transdermique (1) destiné au transfert d'une substance à travers la peau (2), présentant un réservoir (11) dans lequel est stockée la substance à transférer, ainsi qu'un dispositif de transfert qui, en fonctionnement, est en communication avec le réservoir ainsi qu'avec la peau, par l'intermédiaire d'orifices de passage. Ce dispositif de transfert comprend une plaque de substrat (12) dont la porosité est d'environ 30 %. Dans le cas d'un transfert de substance au moyen d'un champ électrique, la plaque de substrat est électriquement mauvaise conductrice ou essentiellement non conductrice.

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