Multilumen catheter for minimizing limb ischemia
First Claim
1. A catheter system for directing the flow of blood through the vasculature of 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
a redirecting tip having a surface positioned at the distal end of and within one of the first and the second lumens; and
a pump in fluid communication with the catheter and configured with withdraw blood from one of said lumens and to deliver blood to the other of said lumens;
wherein blood delivered into one of said lumens of said catheter body impacts said surface and is redirected into the vasculature in a direction generally opposite of the direction of flow in the 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.
107 Citations
2 Claims
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1. A catheter system for directing the flow of blood through the vasculature of 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
a redirecting tip having a surface positioned at the distal end of and within one of the first and the second lumens; and
a pump in fluid communication with the catheter and configured with withdraw blood from one of said lumens and to deliver blood to the other of said lumens;
wherein blood delivered into one of said lumens of said catheter body impacts said surface and is redirected into the vasculature in a direction generally opposite of the direction of flow in the lumen. - View Dependent Claims (2)
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Specification