Magnamed OxyMag Operation Manual page 48

Once all ventilation parameters are set on the ventilator, it calculates TINS, TEXP based on Rate and Ratio I:E; thus obtaining all
ventilation control times.
1 and 2 Pressure Controlled Ventilation – The ventilator achieves the inspiratory pressure set in the shortest time possible,
and this is accomplished by controlling the inspiratory flow. Volume delivered to the patient is the result of resistance and
compliance of his breathing circuit. The ventilator remains at the inspiratory pressure level set during TINS after which cycles
to exhalation, maintaining the PPE pressure set.
3 If the trigger by pressure or flow is activated, then the ventilator tries to synchronize the beginning of the next inspiration
with the patient effort, according to the levels set. The information of what trigger activated the inspiratory cycle is reported in
the status area and screen messages. The detection of patient's inspiratory effort for synchronization occurs at any time of
the exhalation time.
Note
•
When the patient begins to demonstrate inspiratory effort and the ventilator is with triggers by flow or pressure
activated, it starts to "assist" the patient. This situation is often called Assisted-Controlled Ventilation.
•
In assisted-controlled ventilation, the monitored respiratory rate can be higher than the respiratory rate set.
4 The rise time for pressure can be adjusted by TRISE TIME, the initial peak flow is generally smaller than that in TRISE
TIME=0 (depending on the resistance and compliance of patient breathing circuit).
•
Default values are only for initial reference. Reset the ventilation parameters as needed by the patient.
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Manual Oxymag_Rev22