Heat exchange catheter having a helically wrapped heat exchanger
First Claim
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1. A heat exchange catheter, comprising:
- a catheter body having an inflow lumen, an outflow lumen, a proximal region and a distal region;
a first balloon helically wrapping around at least a portion of the catheter body and being in fluid communication with the inflow lumen;
a second balloon helically wrapping around at least a portion of the catheter body and being in fluid communication with the outflow lumen; and
the first and second balloons forming a fluid circuit to facilitate circulation of a heat exchange fluid through the first balloon and the second balloon.
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Abstract
A heat exchange catheter has a catheter body with an inflow lumen, an outflow lumen, and an infusion lumen. A first heat exchange balloon helically wraps around at least a portion of the catheter body in fluid communication with the inflow lumen. A second heat exchange balloon helically wraps around at least a portion of the catheter body in fluid communication with the outflow lumen. The first and second balloons form a gap there between to facilitate infusion of fluid into the blood stream of the patient via an infusion port formed within the gap.
119 Citations
27 Claims
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1. A heat exchange catheter, comprising:
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a catheter body having an inflow lumen, an outflow lumen, a proximal region and a distal region;
a first balloon helically wrapping around at least a portion of the catheter body and being in fluid communication with the inflow lumen;
a second balloon helically wrapping around at least a portion of the catheter body and being in fluid communication with the outflow lumen; and
the first and second balloons forming a fluid circuit to facilitate circulation of a heat exchange fluid through the first balloon and the second balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A heat exchange catheter, comprising:
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a catheter'"'"'s body having an inflow lumen, an outflow lumen, a proximal end and a distal end;
a first balloon helically wrapping around at least a portion of the catheter body and being in fluid communication with the inflow lumen;
a second balloon helically wrapping around at least a portion of the catheter body and being in fluid communication with the outflow lumen;
the first and second balloons forming a fluid circuit to facilitate circulation of heat exchange fluid through the first and second balloons; and
a sheath surrounding the first and second balloons. - View Dependent Claims (10, 11, 12, 13, 14, 19)
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15. A method of circulating fluid within a heat exchange catheter, comprising:
- circulating heat exchange fluid through a heat exchange catheter along a helical path to exchange heat with the blood stream of a patient; and
infusing fluid into the blood stream via the heat exchange catheter. - View Dependent Claims (16, 17, 18)
- circulating heat exchange fluid through a heat exchange catheter along a helical path to exchange heat with the blood stream of a patient; and
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20. A heat exchange catheter, comprising:
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a catheter body having an inflow lumen, an outflow lumen, a proximal region and a distal region;
a first heat exchange means helically wrapping around at least a portion of the catheter body and being in fluid communication with the inflow lumen;
a second heat exchange means helically wrapping around at least a portion of the catheter body and being in fluid communication with the outflow lumen; and
the first heat exchange means and second heat exchange means forming a fluid circuit to facilitate circulation of a heat exchange fluid through the first heat exchange means and the second heat exchange means. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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Specification