SLE SLE5000 - HFO Only Ventilator Set Threshold Alarms (SLE5000 Only)

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14.2.5 HFO Only Ventilator Set Threshold Alarms (SLE5000 only)
The user needs to be made aware that in HFO Only mode the ventilator sets 6
alarm thresholds that are invisible to the user. The thresholds are grouped in pairs
and are as follows.
Unexpected Rise in Max P
Unexpected Drop in Max P
Unexpected Rise in Min P
Unexpected Drop in Min P
Unexpected Rise in Mean P
Unexpected Drop in Mean P
Note: P = Pressure
Each threshold is 5mbar above or below the maximum pressure, minimum
pressure and mean pressure values of the generated oscillatory waveform.
The alarms are generated when any of the thresholds are crossed.
These thresholds are to alert the user to changes in the waveform that would not
otherwise generate an alarm. The example above shows that the maximum
pressure could increase by 15mbar before crossing the high alarm threshold
which is set to 35mbar. The user will be alerted that the maximum pressure is
increasing after 5mbar of expansion when the ventilators Max P threshold is
crossed. This safety feature notifies the user to a variation in the waveform.
The user can reset the alarm thresholds by
pressing the Autoset button in the alarm panel.
In HFO only mode the autoset button will only work
when the Delta P is greater than 5mbar.
Max P
Min P
Mean P
+5 mbar
-5 mbar
+5 mbar
-5 mbar
-5 mbar
+5 mbar
/\ 35.0
\/ -5.0
20.0mbar