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Anaesthesia ventilation
Paediatric use
Paediatric use
Infant hose set
Infant hoses should be used for ventilation volumes of
less than 200 mL.
If a breathing gas humidifier is used, water traps should
be installed at the lowest points of the breathing hoses
(arrows) on both the inspiratory and the expiratory side.
Avoid pressure peaks
The fresh gas is stored in the breathing bag during inspi-
ration. The pressure built up in the breathing bag when
working with high flow rates and long inspiration times
may be higher than the end-inspiratory pressure in the
patient, particularly when using a 0.5 L breathing bag.
Even at a fresh gas flow of 4 L/min, a pressure peak may
arise at the beginning of the expiration phase as fresh
gas streams out of the breathing bag. This is particularly
possible in combination with long inspiration times and
can be avoided by reducing the fresh gas flow or using
a 1.5 L breathing bag.
The setting increments and the metering precision for the
tidal volume V
depend on the selected adjustment
T
range.
(The adjustment range <20 mL is only selectable in
software version 7.2)
Range
Interval
< 20
1 mL
20 to 50 mL
2 mL
50 to 100 mL
5 mL
100 to 990 mL
10 mL
1 L to 1.4 L
0.01L
The system must calculate its new system compliance
following a change of hoses.
The patient must be disconnected for this purpose
and the leakage test started!
(see overleaf)
The ventilation parameters are adjusted in the same way
as in IPPV mode.
If a tidal volume of less than 200 mL is selected from a
higher setting, the system automatically generates the
1 display:
Infant hoses!
Fit infant hoses –
2 press rotary control to confirm.
38
Metering accuracy
± 30 % or ± 6 mL
± 10 % or ± 10 mL
± 10 % or ± 10 mL
± 5 % or ± 15 mL
± 5 % or ± 15 mL
MAN
SPONT
IPPV
Infant hoses
P
max
T
IP
:T
I
SIMV
PCV
V
f
T
:T
PEEP
f
IMV
T
IPPV
I
E
P
Flow
PCV
1
TEST
O
2
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