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BODY-WORN SENSOR FOR CHARACTERIZING PATIENTS WITH HEART FAILURE

  • US 20140187897A1
  • Filed: 12/31/2013
  • Published: 07/03/2014
  • Est. Priority Date: 12/31/2012
  • Status: Abandoned Application
First Claim
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1. A method for generating an alarm indicating fluid build-up for a patient, comprising:

  • providing a loop-shaped, flexible member, the flexible member configured to be positioned around the patient'"'"'s neck and comprising;

    i) at least four electrodes, each comprised by the flexible member, with a first set of electrodes configured to inject electrical current into the patient near their neck, and a second set of electrodes configured to measure electrical signals from the patient;

    ii) an impedance-measuring system, comprised by the flexible member and in electrical contact with the second set of electrodes; and

    iii) a data-processing system, comprised by the flexible member and in electrical contact with the impedance-measuring system;

    injecting electrical current into the patient near their neck with at least one electrode in the first set of electrodes;

    measuring a voltage with the second set of electrodes, the voltage related to a product of the injected current and an impedance of the patient;

    processing different voltages over time to determine a trend in impedance values; and

    processing the trend in impedance values to generate an alarm indicating fluid build-up for the patient.

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