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BODY-WORN SYSTEM FOR CONTINUOUS, NONINVASIVE MEASUREMENT OF CARDIAC OUTPUT, STROKE VOLUME, CARDIAC POWER, AND BLOOD PRESSURE

  • US 20140249435A1
  • Filed: 12/27/2011
  • Published: 09/04/2014
  • Est. Priority Date: 12/28/2010
  • Status: Active Grant
First Claim
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1. A system for measuring at least one of stroke volume and cardiac output from a patient, comprising:

  • an impedance sensor connected to at least two electrodes attached to the patient and comprising an impedance circuit, the impedance circuit configured to process signals from the at least two electrodes to measure an impedance signal from the patient;

    an optical sensor connected to an optical probe attached to the patient and comprising an optical circuit, the optical circuit configured to process signals from the optical probe to measure at least one optical signal from the patient; and

    a processing system configured to;

    i) be worn on the body;

    ii) operably connect to both the impedance sensor and the optical sensor;

    iii) receive the impedance signal from the impedance sensor and process it to determine a first value of at least one of stroke volume and cardiac output;

    iv) receive the optical signal from the optical sensor and process it to determine a second value of at least one of stroke volume and cardiac output; and

    v) collectively process both the first and second values of at least one of stroke volume and cardiac output to determine a third value of at least one of stroke volume and cardiac output.

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