Diamedica DPA 02 Manual de instrucciones - Página 6
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Main Circuit
Over pressure
valve
Valve
Air
O
Reservoir
bag
Control tube: when pressure is applied
by the self-inflating bag or bellows this
tube closes the expiratory valve allowing
the lungs to be inflated
Note: The self-inflating bag or bellows may be replaced by a suitably designed ventilator
Ayres 'T' Piece paediatric circuit
The circuit can be connected directly to the inspiratory valve section as below. It is
recommended that this circuit should be used with a minimum fresh gas flow from
concentrator or cylinder of at least 3 x the patient's minute volume.
The flow capabilities of the draw-over vaporiser are 1 – 35 L/min
If the supplementary flow rate is greater than 4 lt/min the patient circuit can be replaced with a
paediatric circuit (Mapleson F) suitable for continuous flow / assisted ventilation with small
children.
ALWAYS ENSURE THAT YOUR ASSEMBLED UNIT IS SECURELY POSITIONED AND THAT THE
VAPORISER IS AS LEVEL AS IS PRACTICABLE. IN ANY CASE THIS SHOULD ALWAYS BE LESS THAN
30 FROM THE HORIZONTAL.
Vaporiser
Valve
2
Draw over
vaporiser
Self-inflating
bag or
bellows
Inspiratory valve section
© Copyright Diamedica (UK) Ltd 2017
Valve
Expired
gases
Modified valve detail
Expiratory valve
Expired
gases
Mapleson F
Expired gases
Patient
Fig. 4
Fig. 5
To patient
Page 6 of 13