Therapeutic agent delivery device with controlled therapeutic agent release rates
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United States of America Patent
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Apr 14, 2009
Grant Date -
Mar 17, 2005
app pub date -
Oct 28, 2004
filing date -
Aug 20, 2001
priority date (Note) -
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Abstract
The present invention relates to implantable medical devices for the localized delivery of therapeutic agents, such as drugs, to a patient. More particularly, the invention relates to a device having a gradient of water soluble therapeutic agents within a therapeutic agent layer and a mixing layer that allows for controlled release of the therapeutic agents.
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