Dräger Carina

Principles of operation
144 Instructions for use Carina SW 3.2n
Volume losses during ventilation
A component of the volume supplied by the device
remains in the breathing circuit during ventilation.
This component depends on the ratio of hose com-
pliance to lung compliance. The device does not in-
clude the compliance of the breathing circuit in the
calculation of the displayed tidal volume VT. The
volume losses must be manually corrected.
According to the pressure differentials (Pinsp –
PEEP or PIP – PEEP) the specified tidal volume
VT must be increased by the volume defined in the
table.
Example
The patient is ventilated at the following settings:
– 8418655 breathing circuit
– Pinsp = 25 mbar (25 cm H
2O)
– PEEP = 5 mbar (5 cm H2O)
Volume loss not compensated by the device: 60 mL
The tidal volume VT must be manually increased
by 60 mL to ensure that the patient receives the re-
quired volume.
Part number MP00312 MP00313 5704962 8418655 2166046 2165627/
2165619
Breathing cir-
cuit
Disposable Disposable Disposable Disposable Reusable Reusable
1.5m (59in)
with leakage
valve
1.5m (59in)
with expira-
tory valve
2.0m (79in)
with expira-
tory valve
0.5m (20in)
with humidi-
fier cham-
ber MR290,
1.5m (59in)
with hose
heater
1.5 m (59 in) 0.35 m (14 in)
with humidi-
fier chamber
MR370,
2 x 0.60 m
(24 in) and
water trap
Active humidi-
fication
No No No Yes No Yes
VT
loss [mL] at
ΔP
1)
[mbar]
1) ΔP = Pinsp – PEEP or PIP – PEEP
5 334152 5
10 66830310
15 9 9 12 45 5 15
20 12 12 16 60 7 20
25 16 15 20 75 9 25
30 19 18 24 90 10 30
35 22 21 28 105 12 35
40 25 24 32 120 14 40
45 28 27 36 135 15 45
50 31 30 40 150 17 50