OXYGEN
You can connect up to 15 L/min of supplementary oxygen from a regulated
supply to the myAIRVO 2. Connect the output from the oxygen source
to the oxygen inlet port on the side of the unit. Make sure you push the
oxygen tube firmly onto this connection port.
The fraction of oxygen you breathe with this air/oxygen mixture is
determined by the airflow setting on the unit and the oxygen flow
connected to the unit's oxygen inlet port.
The following table gives the approximate oxygen fraction delivered for
the range of unit and oxygen airflows (at sea level). The oxygen fractions
given assume that the oxygen source is a home oxygen concentrator.
These values will be higher if the oxygen source is bottled oxygen. At
flows less than 10 L/min, the oxygen fraction delivered varies significantly
with small changes in input oxygen flow. Oxygen flow settings should be
titrated according to blood saturation levels.
10
15
1
29
27
2
38
32
3
45
37
4
53
42
5
60
48
7
75
58
10
93
74
It is important that the physician prescribing your oxygen therapy
approves both the flow and oxygen settings and that you do not adjust
these prescribed settings without consulting them.
Check that suitable blood saturation levels are achieved at the prescribed
flow.
Use continuous oxygen monitoring on patients who would desaturate
significantly in the event of disruption to their oxygen supply.
WARNINGS
Before using oxygen with the unit, read all of the following warnings:
• The use of oxygen requires that special care be taken to reduce the risk of fire.
Accordingly, for safety it is necessary that all sources of ignition (e.g. electrocautery
or electrosurgery) be kept away from the unit and preferably out of the room
in which it is being used. Oxygen should not be used while smoking or in the
presence of an open flame. The unit should be located in a position where
ventilation around the unit is not restricted.
• A spontaneous and violent ignition may occur if oil, grease or greasy substances
come in contact with oxygen under pressure. These substances must be kept away
from all oxygen equipment.
• Ensure that the myAIRVO 2 is switched on before connecting oxygen.
• Oxygen must only be added through the special oxygen inlet port on the back of
the unit. To ensure that oxygen enters the unit correctly, the oxygen inlet port must
be fitted properly to the filter holder and the filter holder must be fitted properly to
the unit. The power cord connector should also be well secured.
• Ensure that the myAIRVO 2 target flow rate is higher than the supplementary
oxygen flow rate, to avoid excess oxygen being vented into the surroundings.
• Do not connect more than 15 L/min of supplementary oxygen to the myAIRVO 2.
• The oxygen concentration delivered to the patient can be affected by changes to
the flow setting, oxygen setting, patient interface or if the airpath is obstructed.
When finished, turn off the oxygen source. Remove the output of the
oxygen source from the oxygen inlet port on the back of the unit.
WARNINGS
To avoid burns:
• The oxygen flow must be turned off when the unit is not operating, so that oxygen
does not build up inside the device.
A – 10
myAIRVO 2 Target Flow Setting (L/min)
20
25
30
35
40
25
24
24
23
23
29
28
26
26
25
33
31
29
28
27
37
34
32
30
29
41
37
34
33
31
50
44
40
37
35
61
54
49
45
42
45
50
55
60
23
23
23
22
25
24
24
24
26
26
25
25
28
27
27
26
30
29
29
28
34
32
31
31
39
37
36
35