Implantable variable permeability drug infusion techniques
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United States of America Patent
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Feb 9, 1999
Grant Date -
N/A
app pub date -
Apr 25, 1996
filing date -
Apr 25, 1996
priority date (Note) -
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Abstract
An implantable dispensing device for delivering a treatment agent to a body including a body fluid in which a variable permeability membrane responds to changes in an electro-magnetic parameter in order to vary the rate at which a hygroscopic media increases in volume, thereby controlling the rate of delivery of a treatment agent, such as a drug.
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