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Filtering patient signal also for ventilation artifacts

  • US 9,295,427 B2
  • Filed: 11/02/2015
  • Issued: 03/29/2016
  • Est. Priority Date: 09/24/2012
  • Status: Active Grant
First Claim
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1. An external device, comprising:

  • a housing; and

    a processor within the housing configured to;

    receive a patient signal generated from a patient while the patient is receiving chest compressions at a frequency Fc from a mechanical chest compression device, and while the patient is also receiving ventilations at a frequency Fv from a ventilator, the frequency Fv having a value between 1/20th of the frequency Fc and ¼

    of the frequency Fc, andcause to be applied at least one filter mechanism to the patient signal to substantially remove from the patient signal artifacts at the frequency Fc and at the frequency Fv, while substantially passing the patient signal at other frequencies between the frequency Fv and the frequency Fc.

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