EN
9
8
Mark IV Baby
Mark IV Adult
Resuscitator volume
Approx. 487 ml
Approx. 1596 ml
Delivered volume one hand*
300 ml
600 ml
Delivered volume two hands*
1000 ml per the test report
Dimensions (length x diameter)
Approx. 265 x 85 mm
Approx. 275 x 135 mm
Weight, without Reservoir and mask
Approx. 190 g
Approx. 415 g
Pressure limitation system
4.0 kPa (40 cm H
2
O)
Approx. 7.0 kPa (70 cm H
2
O)
Dead space
≤ 5ml + 10 % of
the delivered volume
≤ 5ml + 10 % of
the delivered volume
Inspiratory resistance
Max 0.24 kPa
(2.4 cm H
2
O) at 5 l/min.
and max 0.39 kPa
(3.9 cm H
2
O) at 50 l/min.
Max. 0,29 kPa (2.9 cm H
2
O)
at 50 l/min.
Expiratory resistance
Max 0.16 kPa
(1.6 cm H
2
O) at 5l/min.
and max 0.45 kPa
(4.5 cm H
2
O) at 50 l/min.
Max. 0.27 kPa (2.7 cm H
2
O)
at 50 l/min.
Reservoir volume
Approx. 1500 ml (bag)
Approx. 100 ml (tube)
Approx. 1500 ml
Patient connector
Outside 22 mm male (ISO 5356-1)
Inside 15 mm female (ISO 5356-1)
Expiration connector
(for PEEP valve attachment)
30 mm male (ISO 5356-1)
Manometer Port connector
Ø 4,2 +/- 0,1 mm
Forward and backward leakage
Not measurable
Operation temperature
-18 °C to +50 °C (-0.4 °F to 122 °F)
Storage temperature
Tested at -40 °C (-40 °F) and +60 °C (140 °F)
according to EN ISO10651-4
O
2
inlet connector
according to EN 13544-2
Long term storage
For long term storage the resuscitator should be kept in
closed packaging in a cool place away from sunlight.
Bag inlet connector
Inside 32 mm female
(ISO10651-4)
*Tested according to EN ISO 10651-4
4. Principle in 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. (a) Mark IV, (b) Mark IV
Baby with closed reservoir, (c) Mark IV Baby with open reservoir.
The gas flow is similar when the patient is breathing spontaneously through the
device. The O
2
reservoir assembly 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 reservoir bag is full.
1.1 Excess oxygen, 1.2 Air, 1.3 Oxygen inlet, 1.4 Patient, 1.5 Expiration, 1.6 Manometer
port, 1.7 Pressure limiting valve.
During normal operation of the bag, the elasticity of the outer bag will automatically
limit the ventilation pressure, as stated in the table. This pressure limitation with no
stroke volume loss is unique to the Ambu Mark IV and Mark IV Baby resuscitator.
5. Instructions for use
5.1. Resuscitator
Preparation
- Fit the facemask and place all items in the plastic bag supplied with the resuscitator.
- The integrity of the kits issued for storage ready for use should be inspected at the
interval established in the local protocol.
- Before use on the patient make a brief functional test as described in section 9.
Patient use
- Clear the patient’s mouth and airway using recommended techniques. Use
recommended techniques to position the patient correctly to open the airway
and to hold the mask firmly against the face. (
)
- Ventilate the patient. During insufflation observe the rise of the patient’s chest.
Release the bag abruptly and listen for the expiratory flow from the patient valve
and observe lowering of the chest.
