Seeping flow anti-clotting blood catheter
First Claim
1. A catheter comprising:
- an elongated tube having a distal end and a proximal end, the elongated tube comprising a porous material having an interior face and an exterior face, the interior face defining a lumen along a central axis of the elongated tube, the porous material being configured to flow a fluid substantially parallel to the central axis between the interior face and the exterior face of the porous material and to seep the fluid out of the porous material through the exterior face and interior face;
a lining covering at least a portion of the exterior face and substantially limiting a perfusion through the exterior face at the portion of the exterior face covered by the lining;
a fitting coupled to the proximal end of the elongated tube, the fitting configured to flow a first fluid into the porous material and a second fluid into the lumen, the fitting including a collar disposed about a circumference of the catheter and configured to inject the first fluid into the porous material through the exterior face of the porous material; and
one or more of;
the catheter being impregnated with a material that prevents buildup of material on one of an inner face or an outer face of the catheter; and
the lining being coated with one or more of an anticoagulant, antibiotic, or antithrombotic.
1 Assignment
0 Petitions
Accused Products
Abstract
A catheter includes an elongated tube having a distal end and a proximal end. The elongated tube includes porous material having an interior and an exterior face. The interior face defines a lumen along a central axis of the elongated tube. The porous material is configured to flow a fluid between the interior face and the exterior face and to seep the fluid out of the porous material through the exterior face and interior face. A lining covers at least a portion of the exterior face and substantially limits perfusion through the exterior face at the portion of the exterior face covered by the lining. The catheter is impregnated with a material that prevents buildup of material on one of an inner face or an outer face of the catheter or the lining is coated with one or more of an anticoagulant, antibiotic, or antithrombotic.
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Citations
11 Claims
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1. A catheter comprising:
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an elongated tube having a distal end and a proximal end, the elongated tube comprising a porous material having an interior face and an exterior face, the interior face defining a lumen along a central axis of the elongated tube, the porous material being configured to flow a fluid substantially parallel to the central axis between the interior face and the exterior face of the porous material and to seep the fluid out of the porous material through the exterior face and interior face; a lining covering at least a portion of the exterior face and substantially limiting a perfusion through the exterior face at the portion of the exterior face covered by the lining; a fitting coupled to the proximal end of the elongated tube, the fitting configured to flow a first fluid into the porous material and a second fluid into the lumen, the fitting including a collar disposed about a circumference of the catheter and configured to inject the first fluid into the porous material through the exterior face of the porous material; and one or more of; the catheter being impregnated with a material that prevents buildup of material on one of an inner face or an outer face of the catheter; and the lining being coated with one or more of an anticoagulant, antibiotic, or antithrombotic.
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2. A system comprising:
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a catheter including; an elongated tube having a distal end and a proximal end, the elongated tube comprising a porous material having an interior face and an exterior face, the interior face defining a lumen along a central axis of the elongated tube, the porous material being configured to flow a fluid substantially parallel to the central axis between the interior face and the exterior face of the porous material and to seep the fluid out of the porous material through the exterior face and interior face; a lining covering at least a portion of the exterior face and substantially limiting a perfusion through the exterior face at the portion of the exterior face covered by the lining; and one or more of; the catheter being impregnated with a material that prevents buildup of material on one of an inner face or an outer face of the catheter; and the lining being coated with one or more of an anticoagulant, antibiotic, or antithrombotic; a primary fitting configured to inject a fluid into the lumen of the catheter; a fluid reservoir including the fluid; a pump configured to flow the fluid from the fluid reservoir through the primary fitting into the lumen of the catheter; a controller configured to control the pump; a secondary fitting configured to inject a second fluid into the porous material; a second fluid reservoir including the second fluid; and a second pump configured to flow the second fluid from the second fluid reservoir through the secondary fitting into the porous material, the second pump being controlled by the controller. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification