Ventilation Function; Demandflow Function - Weinmann MEDUMAT Easy CPR Service And Repair Instructions

2.2 Ventilation function

MEDUMAT Easy CPR operates within a pressure
range of 2.7 to 6 bar and at a flow rate of not less
than 70 l/min O . It has a built-in power supply.
2
It uses high-pressure, medicinal-grade oxygen. An
external pressure reducer brings this down to the
required operating pressure. The oxygen supply is
fed in at input valve .
11
The infinitely adjustable ventilation values
(frequency and tidal volume are linked) and the
inspiration/expiration ratio of 1:1.67 are
regulated by internal electronic control
mechanisms.
The gas for inspiration flows along the hose and
through the patient valve and either the mask or
tube into the patient's airways. The patient valve is
fitted with a lip membrane that enables expired
gas to be conducted away through the expiration
tube.
You can check the course of ventilation on the
ventilation pressure indicator

2.3 Demandflow function

The Demandflow setting switches the
MEDUMAT Easy CPR to breathing-controlled O
inhalation. Such inhalation must be carried out
with the ventilation mask. A small inspiration
(trigger) pulse causes oxygen to continue flowing
until slight overpressure interrupts the flow.
Expiration then takes place via the patient valve as
in ventilation.
8
Description
.
2
2
11
6 0
5 0
4 0
3 0
2 0
1 0
0
0 ,6
0 ,3
60
50
40
2
30
20
10
0
Demandflow setting
10
1,1
0 0,9
10
10
0,6
11
16
0,3
30
0,1
Freq.(min
V
t
C P R
1 3
1 4
1 ,1
mbar
0,9
12
13
14
1,1
Demand-
flow
)
-1
(l)