Drug delivery device comprising a dual chamber reservoir

A - Human Necessities – 61 – N

Patent

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Details

A61N 1/30 (2006.01) A61N 1/32 (2006.01)

Patent

CA 2366900

The present invention relates to an apparatus (100) for the delivery of an active agent through a body surface (e.g., the skin or mucosa) of a mammal comprising: a housing with a delivery orifice (134) through the housing (102); an active agent reservoir (120) within the housing for containing the active agent where the active agent reservoir is in communication with the delivery orifice; a fluid reservoir (110) within the housing for containing a fluid; and a semi-permeable membrane (108) in communication with the active agent reservoir and the fluid reservoir for permitting the movement of fluid between the active agent reservoir and the fluid reservoir and substantially preventing the movement of the active agent between the active agent reservoir and the fluid reservoir.

La présente invention concerne un appareil (100) qui sert à apporter un agent actif à travers une surface corporelle (la peau ou une muqueuse par exemple) d'un mammifère. Cet appareil comprend un boîtier (102) doté d'un orifice (134) de sortie formé dans le boîtier ; un réservoir (120) d'agent actif situé dans le boîtier qui contient l'agent actif, ce réservoir d'agent actif communiquant avec l'orifice de sortie ; un réservoir (110) pour le fluide situé dans le boîtier qui contient un fluide ; et une membrane (108) semi-perméable qui communique avec le réservoir d'agent actif et le réservoir de fluide pour permettre au fluide de circuler entre le réservoir d'agent actif et le réservoir de fluide et pour empêcher sensiblement l'agent actif de circuler entre le réservoir d'agent actif et le réservoir de fluide.

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