Surgery – Controlled release therapeutic device or system – Osmotic or diffusion pumped device or system
Patent
1996-08-08
1998-09-01
Coggins, Wynn Wood
Surgery
Controlled release therapeutic device or system
Osmotic or diffusion pumped device or system
424453, A61K 922
Patent
active
058004220
ABSTRACT:
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.
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Dealey Michael H.
Dong Liang C.
Hamel Lawrence G.
Wong Patrick S.-L.
Yum Si-Hong A.
ALZA Corporation
Coggins Wynn Wood
Dhuey John A.
Nguyen A. T.
Stone Steven F.
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