Catheter for uniform delivery of medication
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United States of America Patent
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-
Mar 31, 2009
Grant Date -
Mar 18, 2004
app pub date -
May 12, 2003
filing date -
Jul 19, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A catheter is provided for uniform distribution of fluid medication within an anatomical region. One embodiment of the catheter is comprised of an elongate tubular catheter body defining a lumen. A distal end of the lumen is closed and a portion of the catheter body includes a plurality of openings thereby defining an infusion section of the catheter. A tubular sheath is constructed from a porous material and is positioned over the infusion section. The tubular sheath extends at least a length of the infusion section. The tubular sheath and the catheter body are configured such that fluid within the lumen must pass through the tubular sheath to exit the catheter. In at least one embodiment, a pore size of the porous material is less than about 0.5 microns.
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