Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert
Reexamination Certificate
2009-12-29
2011-12-20
Hartley, Michael G (Department: 1618)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Implant or insert
C604S891100
Reexamination Certificate
active
08080259
ABSTRACT:
The invention is directed to a device for delivering an active agent formulation for a predetermined administration period. An impermeable reservoir is divided into a water-swellable agent chamber and an active agent formulation chamber. Fluid from the environment is imbibed through a semipermeable plug into the water-swellable agent chamber and the active agent formulation is released through a back-diffusion regulating outlet. Delivery periods of up to 2 years are achieved.
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Dionne Keith E.
Eckenhoff James B.
Landrau Felix A.
Lautenbach Scott D.
Magruder Judy A.
Fabian Gary R.
Hartley Michael G
Intarcia Therapeutics, Inc.
McClung Barbara G.
Samala Jagadishwar
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