Drager Evita 4 Ventilator

4 Nov 2011
  • Update to Drager Evita 4 Ventilator
Quite recently, Draeger has made some software revision to the alarm priority with respect to the lost of airway pressure, Paw - Low. Low airway pressure alarm will however take higher priority over the Paw-High. For example, if Paw-High and Paw-Low were alarmed simultaneously, only the Paw-High alarm will be shown for a short period of time and will be replaced by Paw-Low alarm.

Source: TP 


  • Draeger Evita 4 Ventilator (08-Mar-2011)

High Airway Pressure Alarm


During an active "high airway pressure" alarm and with the inspiratory limb of the breathing circuit disconnected, the ventilator will continue to display "high airway pressure" instead of displaying loss of airway pressure. The alarm continues to display on screen only to goes off after the reconnection of the breathing circuit. The ventilator can display only a single alarm message at a time and does not display "low airway pressure" in such a scenario. The displayed message may be misleading and may cause potential harm to the patient.

The manufacturer has no plan to revise the alarm algorithm to address this issue. In the absence of such plan, all respiratory care givers or therapists should be informed of the issues and also put in place a protocol to check for circuit disconnection when "high airway pressure" alarm is encountered.

Source: ECRI Institute

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