Multilumen catheter for minimizing limb ischemia
First Claim
1. A system for treating a patient, comprising:
- a catheter, comprising;
a catheter body having a proximal end, a first distal end, and a second distal end, said first distal end extending distally farther from the proximal end than the second distal end;
a first lumen extending between said first distal end and said proximal end;
a second lumen extending between said second distal end and said proximal end and being in fluid communication with said first lumen at the proximal end; and
a redirecting tip positioned at the distal end of the first lumen;
a pump secured within one of the lumens and configured to pump blood into the first lumen at subcardiac volumetric rates;
wherein the redirecting tip is configured to redirect substantially all of the blood from the pump in a direction generally opposite of the direction of flow in the first lumen.
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Accused Products
Abstract
A multilumen catheter that maximizes the blood flow into and out of the patient'"'"'s vasculature while also providing for passive and/or active perfusion of tissue downstream of where the catheter resides in the vasculature. The inventive catheter comprises a proximal end, a first distal and a second distal end with first and second lumens extending from the proximal end to each of these distal ends to provide for blood circulation within one blood vessel or between two different blood vessels. The second lumen, and any additional lumens so desired, may be positioned coaxially with or radially around the first lumen. Redirecting means is provided at a distal end of at least one of said lumens for directing blood in a direction generally opposite of the direction of flow through said lumen.
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Citations
3 Claims
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1. A system for treating a patient, comprising:
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a catheter, comprising;
a catheter body having a proximal end, a first distal end, and a second distal end, said first distal end extending distally farther from the proximal end than the second distal end;
a first lumen extending between said first distal end and said proximal end;
a second lumen extending between said second distal end and said proximal end and being in fluid communication with said first lumen at the proximal end; and
a redirecting tip positioned at the distal end of the first lumen;
a pump secured within one of the lumens and configured to pump blood into the first lumen at subcardiac volumetric rates;
wherein the redirecting tip is configured to redirect substantially all of the blood from the pump in a direction generally opposite of the direction of flow in the first lumen. - View Dependent Claims (2, 3)
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Specification