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NON-INVASIVE METHODS AND SYSTEMS FOR ASSESSING CARDIAC FILING PRESSURE

  • US 20110245691A1
  • Filed: 07/01/2009
  • Published: 10/06/2011
  • Est. Priority Date: 07/08/2008
  • Status: Active Grant
First Claim
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1. A method for assessing cardiac filing pressure of a patient or subject non-invasively;

  • said method comprising the steps of;

    providing an optical pulse volume sensing device and arranging it on a finger or digit of a patient or subject so that the optical pulse volume sensing device senses a change in volume cause by the pressure pulse;

    fluidly coupling a pressure transducer to the patient'"'"'s mouth so that the pressure transducer measures expiratory pressure;

    determining a pulse amplitude ratio, using the pulse amplitude near the end of the expiratory effort and a baseline pulse amplitude; and

    assessing the determined pulse amplitude ratio so as to determine a filing pressure condition for the heart of the patient.

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