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System and method for identifying autoregulation zones

  • US 10,219,705 B2
  • Filed: 05/04/2016
  • Issued: 03/05/2019
  • Est. Priority Date: 05/08/2015
  • Status: Active Grant
First Claim
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1. A method for monitoring autoregulation, the method comprising:

  • receiving, by a processor and from one or more sensors, a first physiological signal indicative of a blood pressure of a patient and a second physiological signal indicative of blood oxygen saturation of the patient;

    determining, by the processor, a correlation-based measure indicative of the patient'"'"'s autoregulation based at least in part on the first physiological signal and the second physiological signal;

    calculating, by the processor, a statistical data clustering metric indicative of two or more spreads of the correlation-based measure, each spread being within a respective window of blood pressures;

    determining, by the processor, whether each window of blood pressures is within an intact autoregulation zone or an impaired autoregulation zone based at least in part on the data clustering metric; and

    at least one of;

    presenting, via a display, information indicative of a patient'"'"'s autoregulation status;

    oroutputting, via an audio device, information indicative of the patient'"'"'s autoregulation status,wherein the information indicative of the patient'"'"'s autoregulation status is based on the determination of whether each window of blood pressure is within the intact autoregulation zone or the impaired autoregulation zone.

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