ACUTRONIC fabian HFO User Manual

Alarms 73
fabian HFO | SW 5.1.x
Ref: 113003.EN / Date 2020-02-10
7.1.1 Automatic alarm limits
7.1.1.1 Alarm conditions
Each numerical parameter value is checked for violations of the current alarm limits. Additionally, the
measured pressure will be checked against the limit every 20 milliseconds with the following
conditions:
Upper Alarm Limit of Pressure:
• CPAP: with a delay of 300 milliseconds in case of a manual or mechanic breath -> pressure will
be checked against upper limit, if the pressure is still above the limit after 5 seconds the alarm
will be signaled, otherwise it is cleared.
• nCPAP: with a delay of 3 seconds in case of a manual or mechanic breath -> pressure will be
checked against upper limit, if the pressure is still above the limit after 5 seconds the alarm will
be signaled, otherwise it is cleared.
• All other ventilation modes: pressure will be checked against the upper limit, if the limit is
exceeded the alarm will be signaled.
• A breath with peak pressure below the upper limit will reset the delay of 5 seconds.
Lower Alarm Limit of Pressure:
• A breath with peak pressure above the lower limit will reset the delay set in the ventilation
menu.
• nCPAP: with a delay of 3 seconds in case of a manual or mechanic breath -> pressure will be
checked against lower limit, if the pressure is still below the limit after the alarm delay set by the
operator in the Ventilation menu, the alarm will be signaled, otherwise it is cleared.
• DUOPAP: pressure will be checked against lower limit, if the pressure is still below the limit after
the Alarm delay set by the operator in the Ventilation menu, the alarm will be signaled, otherwise
it is cleared.
• If an Alarm Condition has been detected, a dedicated Alarm Array is written, otherwise it is
cleared.
7.1.1.2 Automatic alarm presets
The following alarm limit autosets are used as defaults:
• Minute volume upper limit: 180% of measured minute volume
• Minute volume lower limit: 50% of measured minute volume
• Leak upper limit: 150% of measured tube leak up to maximum of 50% tube leak
• Breaths per Minute (BPM) upper limit: 150% of measured breath rate
• APNEA: 10 seconds
• Proximal Pressure upper limit: 5 mbar above set Inspiratory Pressure
• Proximal Peak Pressure lower limit: 2 mbar above PEEP lower limit
• HFO: mean airway pressure upper limit: 5 mbar above set mean Airway Pressure
• HFO: mean airway pressure lower limit: 5 mbar above set mean Airway Pressure
• PEEP lower limit: 3 mbar below set Exhalatory Pressure
• DCO
2
upper limit: 150% of measured DCO
2
value
• DCO
2
lower limit: 50% of measured DCO
2
value
• CPAP [CPAP-mode] upper limit: 5 mbar above set CPAP value
• CPAP [CPAP-mode] lower limit: 5 mbar below set CPAP value
• CPAP [NCPAP-mode] upper limit: 5 mbar above set CPAP value
• CPAP [NCPAP-mode] lower limit: 2 mbar below set CPAP value
• Pduo [DUOPAP-mode] upper limit: 5 mbar above set Pduo value

ACUTRONIC fabian HFO Specifications

General

Brand	ACUTRONIC
Model	fabian HFO
Category	Medical Equipment
Language	English