Allied Healthcare EPV200 Посібник користувача - Сторінка 7
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Select the desired tidal volume (Tv):
Turn the tidal volume knob to the desired tidal volume setting. The flow to the patient is
different for each tidal volume.
Tidal Volume Setting
I
= 1 second I
t
Verify the pressure relief setting:
This unit has a factory set pressure relief setting of less than 60 cm H
H
O setting is a maximum, regardless of vent settings. The pressure relief setting will
2
vary slightly with tidal volume setting. Lower tidal volumes will have a slightly lower
pressure relief point. Always verify the relief pressure after the vent settings have been
selected. To check the actual relief pressure, block the end of the ventilator breathing
circuit and observe the reading on the airway pressure gauge. This will be the
maximum airway pressure. You should hear an audible alarm and see a flashing light
as this maximum pressure is reached.
Warning: Preset tidal volumes may not be delivered when the
maximum pressure limit is reached. Inspiratory times will remain
constant. However, no additional tidal volume will be delivered after
the pressure limit is reached.
Connect the patient breathing circuit:
Located on the left side of the unit is a 22 mm connection for a patient breathing circuit.
The patient breathing circuit has been designed to fit with an oxygen mask (22 mm
outside diameter) or an endotracheal tube (15 mm inside diameter). Install the
corrugated tubing over the connector so that it is on securely. Follow the established
guidelines for maintaining the patient's airway.
= 2 second
t
200
400
240
480
280
560
320
640
360
720
400
800
440
880
480
960
520
1040
560
1120
600
1200
Approximate Flow
(LPM)
12
14.4
16.8
19.2
21.6
24
26.4
28.8
31.2
33.6
36
6
O. The 60 cm
2