6-8
6.7.3 IntelliCycle
IntelliCycle intelligent synchronous technology means to adjust Exp% dynamically by
adaptive algorithm through extracting and analysing the feature of the waveforms when
Exp% is set to Auto in CPAP/PSV, V-SIMV, P-SIMV and DuoLevel modes. According to the
lung properties of the patient, it can adjust Exp% to the best value intelligently to improve the
synchronization between the patient and the device, make the patient more comfortable
during breathing, reduce the time to adjust the settings during treatment, and reduce the
workload of medical staffs and ensure the excellent synchronous effect at the same time.
6.7.4 V-A/C
V-A/C is volume-assist/control ventilation mode. In V-A/C, fixed tidal volume is delivered to
the patient at the inspiratory flow within the inspiration time. The airway pressure varies
according to the resistance and compliance of the patient’s lungs and thorax. When the
airway pressure reaches the preset pressure limit level, it is held at this level. Expiratory
phase is switched to and pressure is fully released only when the airway pressure exceeds the
pressure alarm high limit.
V-A/C supports synchronous trigger in expiratory phase. Namely, when the ventilator detects
patient inspiratory effort, it delivers next mechanical ventilation in advance.
The following figures show typical waveforms in V-A/C mode.
Plimit
Pressure alarm high limit
PEEP
Pplat
Insp. pause
Insp. flow
Paw
Flow
Time
Tinsp Texp
Breathing cycle
Insp. trigger level
Insp. trigger level
In V-A/C under non-NIV, you need to set the following ventilation parameters:
1. [O2%]: Oxygen concentration
2. [TV]: Tidal volume
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