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Method for compensating a pressure drop in a ventilator tube, ventilator and memory medium

  • US 20050241640A1
  • Filed: 05/19/2005
  • Published: 11/03/2005
  • Est. Priority Date: 11/19/2002
  • Status: Active Grant
First Claim
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1. A method of compensating the pressure drop in a ventilator tube, comprising:

  • measuring a first air flow at a first pressure on the apparatus'"'"' side of a ventilator tube and with the respiratory mask taken off;

    calculating a parameter in a function providing the pressure drop in said ventilator tube in dependence on the air flow, wherein the parameter for the first air flow and the first pressure is calculated;

    measuring the air flow with the respiratory mask being put on;

    calculating a correction pressure by means of the function for the measured air flow; and

    setting a target pressure determined as sum of the selected mask pressure and the correction pressure.

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