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Method and apparatus for measuring cardiac output via an extracorporeal cardiopulmonary support circuit

  • US 20060052715A1
  • Filed: 09/09/2004
  • Published: 03/09/2006
  • Est. Priority Date: 09/09/2004
  • Status: Active Grant
First Claim
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1. A method of measuring a patient cardiac output with an extracorporeal cardiopulmonary support device withdrawing blood from a venous portion of a patent vascular system through an extracorporeal venous line and delivering blood to an arterial portion of the patient vascular system through an extracorporeal arterial line, the method comprising:

  • (a) introducing a dilution indicator into the patient vascular system;

    (b) withdrawing blood including a portion of the dilution indicator from the patient arterial vascular system through the extracorporeal arterial line; and

    (c) determining a cardiac output corresponding to the withdrawn blood and dilution indicator.

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