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Inducing hypothermia and rewarming using a helium-oxygen mixture

  • US 6,983,749 B2
  • Filed: 12/04/2002
  • Issued: 01/10/2006
  • Est. Priority Date: 12/04/2001
  • Status: Active Grant
First Claim
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1. A method for medical treatment comprising:

  • selecting a human patient that has had an ischemic event or is undergoing a surgery associated with a significant probability of causing ischemia;

    providing a cooled gas mixture comprising helium and oxygen and having a temperature of less than about, 10 degrees Centigrade; and

    ventilating the patient using the cooled gas mixture to lower the patient'"'"'s core body temperature to reduce tissue oxygen consumption,wherein the method further comprises providing a liquid having a boiling point of less than 37 degrees Centigrade, atomizing the liquid into droplets, and wherein the ventilating step includes ventilating the patient with the gas mixture, with the gas mixture forming a substantially continuous phase and the liquid droplets being carried in the gas mixture.

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