Ambu Mark IV Resuscitator Manual Del Usuario página 9

Stroke volume one hand
Stroke volume two hands
Dimensions (length x diameter)
Weight, without Reservoir and mask
Pressure limitation of outer cover
Pressure-limiting valve*
Dead space
(0,5 cm H
Inspiratory resistance
(3,7 cm H
(0,6 cm H
Expiratory resistance
(4,5 cm H
Reservoir volume
Patient connector
Expiration connector (for PEEP valve
attachment)
Manometer Port connector
Forward and backward leakage
Operation temperature
Storage temperature
O inlet connector
2
For long term storage the resuscitator should be kept in
Long term storage
closed packaging in a cool place away from sunlight.
*Higher delivery pressure can be obtained by overriding the pressure-limiting valve.
Mark IV Baby Mark IV
300 ml 600 ml
1300 ml
265 x 85 mm 275 x 135 mm
190 g 415 g
4.5 kPa 7.0 kPa
(45 cmH O) (70 cm H O)
2 2
4.0 kPa
---
(40 cm H O)
2
< 6 ml ≤ 5 ml
approx. 0,05 kPa
O) at 5 l/min approx. 0,35 kPa
2
approx. 0,37 kPa (3,5 cm H O) at 50 l/min
2
O) at 50 l/min
2
approx. 0,06 kPa
O) at 5 l/min approx. 0,26 kPa
2
approx. 0,45 kPa (2,6 cm H O) at 50 l/min
2
O) at 50 l/min
2
1500 ml (bag)
1500 ml
100 ml (tube)
Outside 22 mm male (ISO 5356-1)
Inside 15 mm female (ISO 5356-1)
30 mm male (ISO 5356-1)
Ø 4,2 +/- 0,1 mm
Not measurable
-18°C to +50°C (-4°F to 122°F)
-40°C and +70°C (-40°F to 158°F)
according to EN 13544-2
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 reservoir assembly is fitted with two valves, one allowing ambient air
2
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 automatical-
ly 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 recom-
mended 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.
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