Medical device for delivering a therapeutic substance and method therefor
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United States of America Patent
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Jun 4, 2002
Issued Date -
N/A
app pub date -
Feb 12, 2001
filing date -
Apr 29, 1998
priority date (Note) -
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Abstract
A device useful for localized delivery of a therapeutic material is provided. The device includes a structure including a porous material; and a water-insoluble salt of a therapeutic material dispersed in the porous material. The water-insoluble salt is formed by contacting an aqueous solution of a therapeutic salt with a heavy metal water-soluble salt dispersed throughout a substantial portion of the porous material. The porous material can be made of a polymer other than fibrin with fibrin incorporated into the pores, which can be the only layer of polymeric material on the medical device (e.g., stent). A new method for preparing a porous polymer material on a medical device.
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