Set Ventilation Operations
6 - 6 Operator’s Manual of Anesthesia System
Figure 6-2 Ventilation Mode Tabs
6.6.2 Set Manual Ventilation Mode
Manual ventilation mode is the operating mode used to manually ventilate the patients or allow
patients to breathe spontaneously. To use the manual mode, the user must first set the APL valve to
the desired pressure value and then use the Auto/Manual switch on the breathing module to enter
and exit Manual mode. Push the [O
2
Flush] button to inflate the bag if necessary.
Set the APL Valve for Manual Ventilation
Rotate the APL valve adjustment knob to the desired pressure. The number on the knob that lines up
with the index mark on the bottom section of the valve indicates the approximate pressure setting.
NOTE: Clockwise rotation increases the pressure, and counter clockwise
rotation decreases the pressure.
The patient can be ventilated manually using the breathing bag. The pressure will be limited to the
value set on the APL valve.
Set the APL Valve for Spontaneous Breathing
Rotate the APL valve adjustment knob fully counter clockwise until the SP marking on the knob lines
up with the index mark on the bottom section of the valve. The valve will then be open for the
patient to breathe spontaneously.
NOTE: In the manual ventilation mode, you can use the APL valve to adjust the
pressure limit of breathing system and gas volume in the manual bag.
When the pressure in the breathing system reaches the pressure limit
set for the APL valve, the valve opens to release excess gas.
NOTE: The APL valve adjusts the breathing system pressure limit during
manual ventilation. Its scale shows approximate pressure.
Set Alarms
In the manual ventilation mode, when the [Alarms] soft key is set to [Off], the pressure, volume and
apnea alarms are disabled, and the related alarm limits will be displayed as [Off ]. Pressure, volume
and apnea alarms can be turned on by setting the [Alarms] soft key to [On]. The related alarm limits
will be restored to their original settings.
Set CO
2
Alarms
In the Manual ventilation mode, the CO
2
and the CO
2
apnea alarms can be turned off by setting the
[CO
2
Alarms] soft key to [Off], and the related alarm limits will be displayed as [Off ]. The [CO
2
and
CO
2
Apnea Alarms are OFF] prompt will be displayed in the alarm area. The CO
2
and the CO
2
apnea
alarms can be turned on by setting the [CO
2
Alarms] soft key to [On] or by turning the Auto/Manual
switch to the Auto position. The related alarm limits will be restored to their original settings.
NOTE: In the Auto ventilation mode, the system's CO
2
alarms are turned on by
default and cannot be turned off.
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