Medical device with porous surface for controlled drug release and method of making the same
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United States of America Patent
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Jul 20, 2010
Grant Date -
Dec 27, 2007
app pub date -
Sep 7, 2007
filing date -
Jul 7, 1998
priority date (Note) -
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Abstract
The medical devices of the invention comprise a portion having a porous surface for release of at least one biologically active agent therefrom. The porous surface is made of a material such as a polymer having a plurality of voids. To load the porous surface with a biologically active agent or drug, an electrophoresis method is employed. In this method, a device having a porous surface is placed into a drug solution or suspension, along with an electrode. An electric current is applied to the device and electrode. Under such a current, the drug, which has a positive or negative charge, will be loaded into the pores or voids of the porous surface.
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