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Apparatus and method for non-invasively measuring cardiac output

  • US 6,227,196 B1
  • Filed: 03/02/1999
  • Issued: 05/08/2001
  • Est. Priority Date: 12/19/1996
  • Status: Expired due to Term
First Claim
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1. An apparatus for determining a cardiac output or a pulmonary capillary blood flow of a patient, comprising:

  • a conduit adapted for flow communication with a respiratory system of the patient;

    a deadspace adjustable between more than two volumes and positionable in flow communication with said conduit to receive a volume of gas comprising carbon dioxide for subsequent breathing by the patient; and

    at least one detection component in communication with said conduit and capable of detecting changes in respiration of the patient.

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