Catheter for uniform delivery of medication
First Claim
1. A catheter for delivering a fluid to an anatomical region, comprising:
- an elongate tubular catheter body defining a lumen, a distal end of said lumen being closed, a portion of said catheter body having a plurality of openings extending through a side wall of said catheter body thereby defining an infusion section of said catheter;
a tubular sheath constructed from a porous material, said tubular sheath being positioned over said infusion section and extending at least a length of said infusion section, said tubular sheath and said catheter body being configured such that fluid within said lumen must pass through said tubular sheath to exit said catheter;
wherein a pore size of said porous material is less than about 0.5 microns.
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0 Petitions
Accused Products
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.
77 Citations
23 Claims
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1. A catheter for delivering a fluid to an anatomical region, comprising:
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an elongate tubular catheter body defining a lumen, a distal end of said lumen being closed, a portion of said catheter body having a plurality of openings extending through a side wall of said catheter body thereby defining an infusion section of said catheter;
a tubular sheath constructed from a porous material, said tubular sheath being positioned over said infusion section and extending at least a length of said infusion section, said tubular sheath and said catheter body being configured such that fluid within said lumen must pass through said tubular sheath to exit said catheter;
wherein a pore size of said porous material is less than about 0.5 microns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A catheter for delivering a fluid to an anatomical region, comprising:
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an elongate tubular catheter body having a side wall, an outer surface of said side wall defining a relatively uniform first diameter, the catheter body comprising a lumen, a distal portion of said catheter body permitting fluid to pass from within said lumen to external of said catheter body thereby defining an infusion section of said catheter;
a tubular sheath constructed from a porous material, said tubular sheath having a side wall, a first end and a second end, said tubular sheath being positioned over said infusion section such that said infusion section is between said first end and said second end, an inner surface of said side wall of said tubular sheath defining a second diameter, said first and second diameters being configured to create an interstitial space between said tubular sheath and said catheter body;
wherein said first end and said second end of said tubular sheath are secured to said outer surface of said catheter body to substantially seal said interstitial space. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification