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Operation: Getting Started
21
Occlusion Alarm (Inspira ASV p Only)
If the peak pressure limit is reached within the first 40% of the inspiration stroke, an
occlusion alarm is reported. This indicates that a restriction may be present in the air-
way or that the airway resistance may be too high for the flow rate. Occlusions, sys-
tem restrictions due small tubing and/or port diameters, or incorrect respiratory
parameters could be the cause.This alarm is self-clearing on removal of the fault con-
dition.
Assist Alarm
This fault indicates that a vacuum trigger, which is generated by an inhalation effort by
the patient, has not been detected on 5 consecutive cycles.This would be a result of
the patient failing to initiate breaths on its own or of improper respiration parameter
settings, such as assist pressure threshold or respiration rate.
Airway Under-Pressure
This fault indicates that an under-pressure condition has been detected in the airway.
For Volume Control mode, an under-pressure condition is defined as a pressure less
than 25% of the average measured peak pressure (averaged over 10 samples,not count-
ing sigh breaths), checked at a time approximately halfway into the inspiration stroke.
This could indicate that the airway is not connected or is leaking.This is a critical fault
and requires operator intervention. The machine shall continue to run at the current
respiratory settings. This fault shall be self-clearing once the condition is corrected.
The user is always notified via a visual alarm and also by an audible alarm (if enabled).
Underpressure Alarm (Inspira ASV p )
If the average airway pressure is less than 3cmH20, an underpressure alarm is report-
ed. Underpressure conditions are generally caused by severe system leaks.This alarm
is self-clearing on removal of the fault condition.
Initialization Fault
This fault indicates that the machine failed to initialize properly due to one or more
reasons.
High PEEP Alarm (Inspira ASV p Only)
If the actual end-expiratory pressure (EEP) exceeds the desired PEEP plus 5cmH 2 O or
11cmH 2 O, whichever is less, a High PEEP Alarm is reported. This alarm is self-clearing
on removal of the fault condition.
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