Method of managing patient temperature with a heat exchange catheter
First Claim
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1. A heat exchange catheter, comprising:
- a catheter body defining at least a coolant supply lumen and a coolant return lumen;
at least first and second heat exchange membranes disposed along a distal portion of the catheter body and communicating with one or more of the lumens, such that coolant can be supplied to the heat exchange membranes via the coolant supply lumen and received from the heat exchange membranes via the coolant return lumen to effect a closed loop heat exchanger for cooling and/or warming a patient.
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Abstract
A central venous catheter includes coolant supply and return lumens which communicate coolant to and from first and second heat exchange membranes arranged along the distal segment of the catheter. The coolant in the heat exchange membranes removes heat from the patient. Additional lumens are provided for conventional central venous catheter uses.
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Citations
26 Claims
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1. A heat exchange catheter, comprising:
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a catheter body defining at least a coolant supply lumen and a coolant return lumen;
at least first and second heat exchange membranes disposed along a distal portion of the catheter body and communicating with one or more of the lumens, such that coolant can be supplied to the heat exchange membranes via the coolant supply lumen and received from the heat exchange membranes via the coolant return lumen to effect a closed loop heat exchanger for cooling and/or warming a patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 23, 24)
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11. A method for making a heat exchange catheter device, comprising the acts of:
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disposing a multi-lumen catheter body in a connector manifold mold;
disposing plural connector tubes in the connector manifold mold;
interconnecting a respective lumen with a respective connector tube using a mandrel;
directing a plastic material into the connector manifold mold; and
removing the mandrels such that a respective channel is defined between each respective lumen and its connector tube. - View Dependent Claims (12, 13)
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14. A method for treating a patient, comprising the acts of:
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advancing a heat exchange catheter device into the patient; and
circulating coolant through the catheter device while preventing infusion of the coolant directly into the patient'"'"'s bloodstream, the catheter device including a heat exchange region established by;
one or more heat exchange membranes, or one or more hollow fibers, or one or more chamber-defining enclosures.
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16. The method of claim 15, further comprising the act of performing aneurysm surgery while the patient'"'"'s temperature is below normal body temperature.
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17. The method of claim 15, further comprising the act of treating head trauma in the patient while the patient'"'"'s temperature is below normal body temperature.
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18. The method of claim 15, further comprising the act of treating cardiac arrest in the patient while the patient'"'"'s temperature is below normal body temperature.
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19. The method of claim 15, further comprising the act of performing minimally invasive heart surgery on the patient while the patient'"'"'s temperature is below normal body temperature.
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20. The method of claim 15, further comprising the act of treating cardiac malady in the patient while the patient'"'"'s temperature-is below normal body temperature.
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21. The method of claim 15, further comprising the act of maintaining the temperature of a patient at or below normal body temperature, when the patient runs or attempts to run a fever.
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22. The method of claim 15, further comprising the act of treating ischemic stroke in the patient while the patient'"'"'s temperature is below normal body temperature.
- 25. A catheter configured as a Swan-Ganz catheter or central venous catheter having at least one membrane distally located on the catheter for heating or cooling blood in a patient.
Specification