5.Operating guide
75
5.6.1.9. Bi-level Ventilation (BIVENT)
Bi-level Positive Airway Pressure (BIVENT) mode is provided by the ventilator or triggered by the
patient. The ventilator maintains the pressure level in the patient's airway according to the set
high-pressure level or low-pressure level and waits for the patient to try to breathe. If the patient
breathes, the ventilator provides pressure support ventilation. The inspiratory and expiratory are
triggered according to the set expiratory sensitivity by patient switching. When the patient is not
breathing, the ventilator provides pressure-controlled ventilation according to the set
high-pressure level and the inspiration and expiration switch according to the set high-pressure
level maintenance time and low-pressure level maintenance time. The patient's tidal volume
depends on the high-pressure level, the level of pressure support, and the patient's inspiratory
effort.
BIVENT ventilation mode setup parameters:
P
HIGH
:5～70
P
LOW
:3～50
T
HIGH
:0.2～30 step:0.1
T
LOW
:0.3～30 step:0.1
△P:3～50cmH
2
O
V
SENS
:0.5～15L/min
E
SENS
:5～75%
T
SLOPE
: 0～2.0sec
P
SENS
:﹣20～﹣1cmH
2
O
Table 5-10 Waveform of BIVENT
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