Dispensing device containing a hydrophobic medium
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United States of America Patent
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-
Jul 11, 1995
Issued Date -
N/A
app pub date -
Mar 12, 1993
filing date -
Sep 28, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for the controlled delivery of an insoluble or partially aqueous insoluble beneficial agent to an aqueous containing environment. The device comprises a shaped wall that surrounds and defines an internal reservoir. The wall is formed at least in part of a sintered polymer microporous membrane permeable to a beneficial agent-containing hydrophobic medium when the wall is present in the aqueous containing environment. The reservoir contains a mixture of a hydrophilic swellable composition and a beneficial agent-containing hydrophobic medium.
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