Volume Losses During Ventilation - Dräger Carina Instructions For Use Manual

Principles of operation

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-
Part number MP00312
Breathing cir- Disposable
cuit
1.5 m (59 in)
with leakage
valve
Active humidi-
fication
VT [mL] at
loss
1)
ΔP
[mbar]
5
10
15
20
25
30
35
40
45
50
1) ΔP = Pinsp – PEEP or PIP – PEEP
Example
The patient is ventilated at the following settings:
– 8418655 breathing circuit
– Pinsp = 25 mbar (25 cm H
– PEEP = 5 mbar (5 cm H
Volume loss not compensated by the device: 60 mL
144
MP00313
Disposable
1.5 m (59 in)
with expira-
tory valve
No No
3 3
6 6
9 9
12 12
16 15
19 18
22 21
25 24
28 27
31 30
O)
2
O)
2
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.
5704962 8418655
Disposable Disposable
2.0 m (79 in) 0.5 m (20 in)
with expira- with humidi-
tory valve fier cham-
ber MR290,
1.5 m (59 in)
with hose
heater
No Yes
4 15
8 30
12 45
16 60
20 75
24 90
28 105
32 120
36 135
40 150
The tidal volume VT must be manually increased
by 60 mL to ensure that the patient receives the re-
quired volume.
Instructions for use Carina SW 3.2n
2166046 2165627/
2165619
Reusable Reusable
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
No Yes
2 5
3 10
5 15
7 20
9 25
10 30
12 35
14 40
15 45
17 50