×

Prediction of worsening of heart failure using blended reference

  • US 10,448,899 B2
  • Filed: 10/27/2016
  • Issued: 10/22/2019
  • Est. Priority Date: 10/29/2015
  • Status: Active Grant
First Claim
Patent Images

1. A system, comprising:

  • a signal input circuit configured to receive at least one physiological signal from a patient;

    a signal processor circuit, including;

    a memory circuit;

    a reference value generator circuit including;

    a filter circuit to transform one or more first signal portions of the received at least one physiological signal during respective one or more first time windows into respective one or more baseline statistical values;

    a comparator circuit to transform one or more second signal portions of the received at least one physiological signal during respective one or more second time windows into respective one or more historical extreme values; and

    a blending circuit to generate one or more reference values of a physiologic parameter stored in the memory circuit using the respective one or more baseline statistical values and the respective one or more historical extreme values; and

    a short-term value generator circuit configured to transform one or more third signal portions of the received at least one physiological signal during respective one or more third time windows into respective one or more short-term values stored in the memory circuit, the one or more third time windows shorter than the respective first and second time windows;

    a cardiac condition detector circuit configured to determine a cardiac condition indicator using the one or more short-term values and the one or more reference values; and

    an output unit, configured to generate a human-perceptible presentation of an indication of a progression over time of the cardiac condition indicator.

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