Magnamed OxyMag Operation Manual page 57

Once all ventilation parameters are set on the ventilator, it calculates TEXP based on Rate and TINS and, thus, obtain all ventilation
control times.
1 e 2 Pressure Limited Ventilation – The ventilator seeks to achieve the set inspiratory pressure, and this is accomplished by
occlusion of the exhalation valve. It is important to note that the pressure rise time is dependent on the set continuous flow. The
Volume delivered to the patient is the result of the resistance and compliance of his breathing circuit. The ventilator remains at
the level of set inspiratory pressure during TINS after which cycles to exhalation, maintaining the set PEEP pressure.
3 If the trigger by pressure or flow is activated, then the ventilator seeks to synchronize the beginning of the next inspiration with
the patient effort, according to the levels set. The information of what type of trigger activated the inspiratory cycle is reported in
the message area and screen status. The detection of patient's inspiratory effort, for synchronization, occurs at any time during
expiratory time.
• Default values are only for initial reference. Reset the ventilation parameters, as needed by
the patient.
Note
When the patient begins to demonstrate inspiratory effort and the ventilator is with triggers by flow or pressure
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activated, it starts to "assist" the patient. This situation is often called Assisted-Controlled Ventilation.
In an assisted-controlled ventilation, the respiratory rate monitored can be higher than the respiratory rate set.
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BASE FLOW is an existing flow during the exhalation phase to eliminate CO2 from the respiratory circuit, in
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addition to reduce undesirable PEEP.
In this mode, the I:E ratio parameters depend on the settings of Insp time and Rate.
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