Sustained delivery of an active agent using an implantable system

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...

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Bibliographic Details
Main Authors ECKENHOFF, LEGAL REPRESENTATIVE BONNIE J, WRIGHT JEREMY C, DIONNE KEITH E, MAGRUDER JUDY A, ECKENHOFF JAMES B, LANDRAU FELIX A, LAUTENBACH SCOTT D, PEERY JOHN R
Format Patent
LanguageEnglish
Published 02.02.2010
Subjects
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Summary: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.
Bibliography:Application Number: US20030645293