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OxyMag_rev26
8.
Description of modes
8.1
VCV
– Volume Controlled Ventilation
Description:
In this mode, the ventilator controls the volume flow and cycle, i.e., at each
inspiratory cycle the ventilator delivers a precise volume to the patient,
provided that the pressure is not limited. Waveform of the flow can take
square, descending, sine and ascending shapes
Note
•
This ventilation mode is not available for NEONATAL
patients (weight < 6,0 kg).
Set Parameters:
:
•
VOLUME;
•
RATE;
•
RATIO I:E;
•
PEEP;
•
MAXIMUM PRESSURE;
•
PAUSE INSP (%);
•
FiO2;
•
TRIGGER FOR FLOW;
•
TRIGGER FOR PRESSURE;
•
FLOW WAVEFORM
Figure 20: VCV Curves
Once all ventilation parameters are received by the ventilator, it calculates TINS, TEXP, TPAUSE, FINS based on Ratio I:E, Pause
and Frequency, thus obtaining all ventilation control times.
1.
Ventilation without Inspiratory Pause, after TINS the ventilator cycles to exhalation. The inspiratory pressure achieved
is a consequence of the volume delivered and the resistance and compliance of the patient’s breathing circuit.
