8
Symbol indication Description
Medical Device
Single Patient Multiple Use
Do not pull the oxygen reservoir bag by force
A full list of symbol explanations can be found on https://www.ambu.com/symbol-explanation
4. Product use
4.1. Principle of operation
The illustration
1
shows the ventilation gas flow mixtures into the bag and to and from
the patient during manual operation of the resuscitator.
1a
Adult and pediatric
resuscitator,
1b
infant resuscitator with closed oxygen reservoir bag (bag reservoir),
1c
infant resuscitator with open oxygen reservoir tube (tube reservoir).
The gas flow is similar when the patient is breathing spontaneously through the device.
The oxygen reservoir is fitted with two valves, one allowing ambient air to be drawn in
when the reservoir is empty and one spilling out surplus oxygen when the oxygen
reservoir bag is full.
The M-Port provides access to the inspiratory and expiratory gas flow allowing to
connect a syringe for drug delivery
1d
or to connect a gas sampling line for measuring
side stream EtCO
2
1e
.
1.1
Excess oxygen release,
1.2
Air inlet,
1.3
Oxygen inlet,
1.4
Patient connector,
1.5
Expiration,
1.6
Manometer port,
1.7
Pressure-limiting valve,
1.8
M-port.
NOTE: attachment to 1.5 can be either a splash guard or a PEEP valve.
4.2. Inspection and Preparation
The resuscitator must be unpacked and prepared (including performing a functunality test)
for immediate use before it is placed ready for use in emergency situations.
4.2.1. Preparation
– If the resuscitator is packed in a compressed state, unfold by pulling on the patient valve
and the inlet valve.
– Prepare the resuscitator and place all items in the carrying bag supplied with the resuscitator.
– If the face mask supplied with the resuscitator is wrapped in a protective pouch,
the pouch should be removed before use.
Refer to section 4.2.2. (Oxygen tube) for preparation of the device before use at below 0°C.
4.2.2. Test of function
2
Resuscitator
Close the pressure-limiting valve with the override clip and close the patient connector
with the thumb
2.1
. Briskly squeeze the compressible bag. The resuscitator shall resist
the squeeze.
Open the pressure-limiting valve by sliding away the override clip and repeating the
procedure. The pressure-limiting valve should now be activated, and it should be possible
to hear the flow from the valve during brisk compression of the compressible bag.
Squeeze and release the resuscitator a few times to ensure that air is moving through the
valve system and out of the patient valve.
2.2
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