7 Alarms 58
fabian Therapy evolution | SW V5.1.x
Ref: 121003.EN / Date: 26Jan2021
7.4.2 Pressure release behaviour
In case of detected obstruction of the breathing tubes, the ventilator alarms and ceases gas flow
to the outlet to reduce the pressure in the breathing circuit to ambient pressure (ZEEP). The tube
obstruction alarm is terminated once the airway pressure measured by the proximal pressure
sensor has fallen below set PEEP and the time of the next breath trigger is reached.
This pressure relief occurs:
• 10 mbar above the set PIP in NCPAP and DUOPAP modes.
In case of detected high inspiratory pressure, the ventilator alarms and switches to the expiratory
phase – the exhalation valve pressure control is reduced to PEEP, and the outlet gas flow is
switched from I-Flow to E-Flow. Only if this subsequently transitions to a tube obstruction alarm,
the outlet flow is switched off and exhalation valve opened as above.
7.4.3 Application error
If the device software encounters an unexpected ERROR, a window appears in the middle of the
screen with the following text in English: “Application Fabian.exe encountered a serious error
and must shut down.”
Figure 7-3: Application error displayed
If there is an audible alarm, follow these steps:
1. Immediately start ventilation of patient with an alternative treatment
2. Shut down the device.
3. Report the incident to your local distributor
4. Use the device only if it is inevitable
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