×

SYSTEMS AND METHODS FOR DETERMINING CARDIAC OUTPUT USING PULMONARY ARTERY PRESSURE MEASUREMENTS

  • US 20100094144A1
  • Filed: 09/10/2009
  • Published: 04/15/2010
  • Est. Priority Date: 10/10/2008
  • Status: Active Grant
First Claim
Patent Images

1. A method of determining cardiac output within a patient'"'"'s heart, the method comprising:

  • sensing an arterial pressure waveform using a pressure sensor located within a pulmonary artery of the patient;

    identifying the systolic portion of the arterial pressure waveform;

    identifying the beginning of a cardiac cycle and correlating the systolic portion of the arterial pressure waveform with the beginning of the cardiac cycle;

    identifying the valve closure time of the pulmonary valve using the arterial pressure waveform;

    estimating the stroke volume using the systolic portion of the arterial pressure waveform and the pulmonary valve closure time; and

    obtaining a measure of cardiac output based at least in part on the estimated stroke volume.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×