Diffusion barrier layer for implantable devices
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United States of America Patent
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Dec 16, 2003
Grant Date -
Sep 5, 2002
app pub date -
Dec 28, 2000
filing date -
Dec 28, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A diffusion barrier for an implantable device, such as a stent, carrying a therapeutic or bioactive substance is disclosed. The diffusion barrier reduces the rate at which the therapeutic or bioactive substance is released from the device. The diffusion barrier can be made from a polymeric material impregnated with particles.
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