Coatings for drug delivery devices having gradient of hydration
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United States of America Patent
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Jul 31, 2012
Grant Date -
May 15, 2008
app pub date -
Jan 18, 2008
filing date -
Nov 6, 2003
priority date (Note) -
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Abstract
A coating for an implantable medical device is provided comprising a first layer including a first polymer and a second layer including a second polymer. The second layer is disposed over at least a portion of the first layer. The second polymer has a lower degree of hydration than the first polymer.
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