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Multi-sensor based cardiac stimulation

  • US 10,350,418 B2
  • Filed: 10/26/2016
  • Issued: 07/16/2019
  • Est. Priority Date: 10/26/2015
  • Status: Active Grant
First Claim
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1. A medical device, comprising:

  • a stimulation generator circuit configured to generate stimulation for stimulating a target tissue in a patient according to at least one stimulation parameter;

    a signal sensor circuit configured to receive physiological information of the patient and to generate two or more signal metrics using the received physiologic information;

    a cardiac condition detector circuit including a blending circuit to use the two or more signal metrics to generate a cardiac condition indicator indicative of heart failure risk, and a comparator circuit to detect an event of worsening cardiac condition using the cardiac condition indicator; and

    a stimulation programmer circuit coupled to the cardiac condition detector circuit and the signal sensor circuit, the stimulation programmer circuit configured to;

    determine a stimulation parameter reconfiguration frequency based on the cardiac condition indicator;

    determine a parameter value for the at least one stimulation parameter based on information about temporal responses of the two or more signal metrics according to the determined stimulation parameter reconfiguration frequency; and

    program the stimulation generator circuit with the determined parameter value.

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