Dräger Primus SW 4.5n Instructions For Use Manual page 100

Operation
Volume
1 Press the soft key extra settings (A). The trig-
ger sensitivity soft key Trigger (B) is displayed.
Volume
sync.
C
2 Press the soft key Trigger (B). The last value
set appears as default value when the key is ac-
tivated.
3 Set and confirm the trigger sensitivity with the
rotary knob. When finally confirmed, the indica-
tion sync. in the status area (C) of the ventila-
tion mode lights up steadily instead of flashing.
A mandatory breath triggered by the patient is rep-
resented by a continuous vertical black line in the
pressure curve and in the flow curve (trigger indica-
tor). The active window for the stroke triggered by
the patient corresponds to the last 25 % of the ap-
plicable expiratory time.
100
A
B
D
NOTE
A triggered V will be corrected by the volume
T
which the patient spontaneously inhaled prior to
beginning volume-controlled ventilation. Inde-
pendent of that, at least 50 % of the set respiratory
volume will always be applied to ensure adequate
volume ventilation.
4 Press the soft key extra settings (D) again, the
actual trigger status is shown above the keys for
the ventilation parameters (E).
Synchronized volume-controlled ventilation
with pressure support (optional)
Pressure support is activated during volume-con-
trolled ventilation by entering a value for the level of
pressure support. This can be defined via the soft
Δ
key P .
PS
sync.
Volume
PressSupp
G
Δ
1 Press the soft key
tivated, the last value set for pressure support
appears as the default value, together with the
last value set for the trigger sensitivity above it.
2 Set and confirm the value for pressure support
with the rotary knob. When finally confirmed,
the indication PressSupp in the status area (G)
of the ventilation mode lights up steadily instead
of flashing.
Instructions for use Primus SW 4.5n
E
F
P (F). When the key is ac-
PS
H