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Bi-directional partial re-breathing method

  • US 6,200,271 B1
  • Filed: 09/09/1998
  • Issued: 03/13/2001
  • Est. Priority Date: 09/09/1998
  • Status: Expired due to Term
First Claim
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1. A method of non-invasively determining pulmonary capillary blood flow of a patient, comprising:

  • measuring a before re-breathing carbon dioxide elimination and a before re-breathing partial pressure of end tidal carbon dioxide prior to a re-breathing phase;

    measuring a during re-breathing carbon dioxide elimination and a during re-breathing partial pressure of end tidal carbon dioxide during said re-breathing phase; and

    measuring an after re-breathing carbon dioxide elimination and an after re-breathing partial pressure of end tidal carbon dioxide after said re-breathing phase.

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