7 Ventilation modes
LM
T 6
85
41
a 0
6/2
02
1
|
31
7.12.1 Adjustable parameters in P-SIMV mode
7.13 V-SIMV mode
In V-SIMV mode, it is possible to set both pressure support
for spontaneous breaths and a fixed volume for the
mandatory breaths. In addition, the lower pressure level is
specified. The mandatory breaths are triggered by the
frequency setting.
Inspiration and exhalation phases are generally specified
by the patient’s spontaneous breathing, by the trigger
parameter, and by parameters F, Ti min, Ti max, and Ti.
The graph shows the currently regulated airway pressure
over time.
7.13.1 Adjustable parameters in V-SIMV mode
PARAMETER
ADJUSTABLE VALUES
DESCRIPTION
PS
4 – 50 cmH
2
O (leakage circuit)
4 – 60 cmH
2
O (single or double
circuit with valve)
Set pressure support during spontaneous breaths here.
IPAP
4 – 50 cmH
2
O (leakage circuit)
4 – 60 cmH
2
O (single or double
circuit with valve)
Set positive airway pressure on inspiration here.
PEEP
4 – 25 cmH
2
O (leakage circuit)
0 – 25 cmH
2
O (single or double
circuit with valve)
Set positive airway pressure on exhalation here.
Rate
2 – 60/min
Set ventilation frequency (rate) per minute here.
T
i
min
0.5 s – T
i
max
Set the minimum duration of inspiration for spontaneous breaths here.
T
i
max
0.5 s – 4 s
Set the maximum duration of inspiration for spontaneous breaths here.
T
i
0.5 s – 4 s
Set the duration of inspiration for mandatory breaths here.
Trigger
sensitivity on
inspiration
1 – 10
Auto
Set trigger sensitivity here:
1: Highly sensitive
10: Not very sensitive
Auto: Device optimizes trigger sensitivity.
Trigger
sensitivity on
exhalation
95 % – 5 %
Set trigger sensitivity on exhalation here. Triggering is effected when
the following values are reached by maximum flow:
95 %: Highly sensitive
5 %: Insensitive
Trigger
lockout time on
inspiration
0.2 s – 5 s
Trigger signals on inspiration are ignored during the set period.
Pressure increase
1
2
3
4
Set the speed at which IPAP is reached here:
• Level 1: 100 cmH
2
O/s
• Level 2: 80 cmH
2
O/s
• Level 3: 50 cmH
2
O/s
• Level 4: 20 cmH
2
O/s
PARAMETER
ADJUSTABLE VALUES
DESCRIPTION
Volume
100 ml – 3,000 ml
Set the volume delivered (V
t
) here.
PS
4 – 50 cmH
2
O (leakage circuit)
4 – 60 cmH
2
O (single or double
circuit with valve)
Set pressure support during spontaneous breaths here.
PEEP
4 – 25 cmH
2
O (leakage circuit)
0 – 25 cmH
2
O (single or double
circuit with valve)
Set positive airway pressure on exhalation here.
Rate
2 – 60/min
Set background frequency (rate) per minute here.
T
i
min
0.5 s – T
i
max
Set the minimum duration of inspiration for spontaneous breaths here.
T
i
max
0.5 s – 4 s
Set the maximum duration of inspiration for spontaneous breaths here.
T
i
0.5 s – 4 s
Set the duration of inspiration for mandatory breaths here.
Summary of Contents for LUISA
Page 51: ......
