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USING ESTIMATED CARINAL PRESSURE FOR FEEDBACK CONTROL OF CARINAL PRESSURE DURING VENTILATION

  • US 20130192599A1
  • Filed: 01/31/2012
  • Published: 08/01/2013
  • Est. Priority Date: 01/31/2012
  • Status: Active Grant
First Claim
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1. A ventilator-implemented method for controlling delivery of gas flow to a patient, the method comprising:

  • delivering gas flow to the patient based on a carinal pressure command;

    receiving a signal representative of a pressure at a patient wye;

    calculating a pressure drop across a breathing tube extending from the patient wye to about the carina of the patient;

    estimating a carinal pressure by subtracting the pressure drop across the breathing tube from the pressure at the patient wye;

    comparing the estimated carinal pressure to the carinal pressure command; and

    controlling delivery of gas flow to the patient based on comparing the estimated carinal pressure and the carinal pressure command.

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