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Non-invasive method and device for collecting measurements representing body activity and determining cardiorespiratory parameters of the human body based upon the measurements collected

  • US 5,469,859 A
  • Filed: 06/24/1993
  • Issued: 11/28/1995
  • Est. Priority Date: 06/24/1992
  • Status: Expired due to Fees
First Claim
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1. A non-invasive method for determining of the main cardiorespiratory parameters of a human body, comprising the steps of:

  • attaching electrodes to the body in a manner so as to enable the measuring of integral bioimpedance measurements of the total body of a patient;

    transmitting a high stability amplitude alternating current through said electrodes and into said body;

    obtaining an integral impedance curve of said body from the connected electrodes upon transmission of the high stability amplitude alternating current;

    transmitting the integral impedance curve to a measuring device;

    converting the impedance curve to a working signal;

    transmitting the working signal to a computer;

    simultaneously and automatically separating an active component from said integral impedance;

    calculating cardiorespiratory parameters; and

    applying the computerized calculation of the cardiorespiratory parameters of said body from the active component of said integral bioimpedance, using empiric formulae applicable, to integral bioimpedance measurements;

    the computerized calculation being based on the bioimpedance measurements measured during a respiration cycle.

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