MTV1000 Ventilator System
73
User’s Manual
F(P)
TRIG
OFF, 0.5 ~
20
cmH
2
O/
LPM
0.5
Configure
sensitivity
for
detecting
spontaneous
ventilation by the patient.
MASK
ON/OFF
-
-
Configure mask on / off.
ACCEPT
-
-
-
Execute PACV Mode.
CANCEL
-
-
-
Move back to the previous menu.
The delivered volume is dependent upon the pressure above PEEP, lung compliance and
resistance in the patient tube system and airways. This means that the Tidal Volume can
vary.
As the delivered tidal volume can vary it is very important to set alarm limits for Minute
Volume to adequate levels.
When pressure control ventilation is provided by mandatory breath in assist / control
mode, inspiratory pressure is configured. Since pressure is maintained constant during
inspiration, flow pattern is shown in the form of ramp. Plateau function cannot be used.
Pressure Control assures that the preset inspiratory pressure level is maintained
constantly during the entire inspiration.
The preset pressure level is controlled by the ventilator. The resulting volume depends on
the set pressure level, inspiration time and the patient’s lung mechanical properties
during each breath.
Since exhalation valve is active exhalation valve, airway pressure control becomes more
active and precise. Accordingly, exhalation valve is used to control increase in pressure
caused by talking or coughing of the patient during inspiration. It also allows the patient
to spontaneously breathe.
If the pressure increases to the set upper pressure limit, the expiratory valve opens and
the ventilator switches to expiration.
Inspiratory
Time
Inspiratory
Time