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Artificial ventilation apparatus

  • US 20040016431A1
  • Filed: 01/10/2003
  • Published: 01/29/2004
  • Est. Priority Date: 07/11/2000
  • Status: Abandoned Application
First Claim
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1. An installation for ventilating a patient with breathing mixture comprising:

  • a ventilating assembly for delivering said breathing mixture provided with a sensor for measuring the pressure of the delivered mixture and/or a sensor for measuring the flow rate of the delivered mixture;

    an inhalation conduit; and

    a device for detecting the accidental dis-connection of the ventilating circuit comprising;

    processing means for calculating, for each ventilating cycle, an apparent compliance coefficient of the patient based on measurements carried out by said pressure and flow rate sensors, using a predetermined formula, means for determining the sign of said compliance coefficient, means for comparing said compliance coefficient with a predetermined positive value and means for triggering an alarm if the compliance coefficient is negative or if the compliance coefficient is greater than said predetermined value.

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