Osmotic device with delayed activation of drug delivery and...

Details Osmotic device with delayed activation of drug delivery and... Osmotic device with delayed activation of drug delivery and...

A - Human Necessities

61

K

A61K 9/48 (2006.01) A61K 9/00 (2006.01) A61K 31/57 (2006.01) A61K 38/27 (2006.01)

Patent

CA 2220301

The present invention is directed to a fluid-imbibing drug delivery device which is useful for the initial delayed delivery of an active agent formulation to a fluid environment of use, the initial delay period to startup or activation of the device being of a predetermined length of time. The delivery of the agent formulation from the dispensing device is continued until essentially all of the active agent formulation is delivered as a result of the expansion of an expansion agent in the active agent delivery chamber.

Cette invention se rapporte à un dispositif d'apport de médicament avec imbibition de fluide, qui sert à amener avec un retard initial une formulation d'un agent actif dans un milieu fluide d'utilisation, cette période de retard initial avant le démarrage ou l'activation du dispositif étant d'une durée prédéterminée. L'apport de la formulation de l'agent actif à partir du dispositif distributeur est prolongé jusqu'à ce que pratiquement toute la formulation de l'agent actif soit distribuée à la suite de l'expansion d'un agent d'expansion dans la chambre d'apport de l'agent actif.

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