Apl Valve - Dräger Apollo Operating Instructions Manual

APL Valve

APL Valve

The APL valve has two functions. It limits the
maximum pressure during manual ventilation and
exhausts excess gas into the scavenger system
during manual and spontaneous ventilation.
The APL valve is connected to the patient airway
through the ventilator. It functions only when the
ventilator is in Manual/Spontaneous mode.
The adjustment knob (1 in
between spontaneous and manual modes of
ventilation. It's labeled to indicated approximate
pressure settings.
For spontaneous ventilation:
Pressure is released for spontaneous ventilation
when the adjustment knob is rotated fully
counterclockwise, when the index mark on the knob
lines up with the index mark on the bottom of the APL
valve (2 in Figure 6). Spontaneous ventilation
eliminates both resistance to patient exhalation and
the need to readjust back pressure.
For manual ventilation:
In manual mode, the APL valve adjustment knob can
be rotated to change the approximate pressure at
which gas will flow through the valve and into the
scavenging system. Clockwise rotation of the
adjustment knob increases the pressure, and
counterclockwise rotation of the adjustment knob
decreases the pressure. Pulling up on the APL valve
knob will temporarily relieve pressure.
Note:
The APL valve is automatically excluded
from the breathing circuit whenever an
automatic ventilator mode is selected. It is
suggested that even in automatic ventilation,
the APL valve is adjusted to a pressure that
is safe for the patient.
WARNING !
Route all lines/cables away from the APL valve
to prevent interference with the APL adjustment
knob. Lines/cables caught underneath the APL
adjustment knob could interfere with the proper
functioning of this valve.
Apollo Operator's Manual
Figure 6) is used to select
Chapter 2 - System Components
Figure 6. APL Valve
1
2
25