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DEVICE AND METHOD FOR DETERMINING LEAKS OF A RESPIRATOR

  • US 20070144522A1
  • Filed: 10/31/2006
  • Published: 06/28/2007
  • Est. Priority Date: 12/22/2005
  • Status: Active Grant
First Claim
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1. A method for the determination of leaks in a device for supplying a patient with breathing gas, the method comprising the steps of:

  • providing an analyzing unit and a measuring device for determining the respiratory tract pressure;

    recording an inspiration pressure pinsp during an inspiration time Tinsp with the measuring device;

    varying the inspiration pressure pinsp during consecutive breaths i;

    determining leak volumes VLi from the product of pinspi and Tinspi in accordance with the equation
    VLi=A×

    p
    inspiB×

    I
    inspi while the parameters A and B are determined in the analyzing unit by a regression model with pinsp as the regressor.

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