Weinmann Emergency MEDUMAT Easy User manual

MEDUMAT Easy
Ventilator
Aparato de respiración artificial
Ventilador
Description and instructions for use 
Descripción del aparato e instrucciones 
Descrição e instruções de funcionamento

English 3
Español 70
Português 146

Contents 3
EN
English
Contents
1. Overview . . . . . . . . . . . . . . . . . . . 4
1.1 Device . . . . . . . . . . . . . . . . . . . . . 4
1.2 Special symbols on the ventilator . 6
2. Legend . . . . . . . . . . . . . . . . . . . . . . 9
3. Description . . . . . . . . . . . . . . . . . 10
3.1 Intended use. . . . . . . . . . . . . . . . 10
3.2 Owner/operator and user 
qualification . . . . . . . . . . . . . . . . 11
3.3 Ventilation function . . . . . . . . . . 11
3.4 Demandflow function . . . . . . . . 12
3.5 Patient hose system with patient 
valve. . . . . . . . . . . . . . . . . . . . . . 12
3.6 Audio response . . . . . . . . . . . . . 13
4. Safety instructions . . . . . . . . . . 14
4.1 Safety regulations . . . . . . . . . . . . 14
5. Installation . . . . . . . . . . . . . . . . . 18
5.1 Connecting the oxygen cylinder . 18
5.2 Ventilation hose . . . . . . . . . . . . . 19
5.3 Wall mounting set . . . . . . . . . . . 21
6. Using the ventilator . . . . . . . . . 22
6.1 Switching on / self test . . . . . . . . 22
6.2 Selecting the ventilation settings 23
6.3 Performing ventilation . . . . . . . . 25
6.4 Monitoring ventilation . . . . . . . . 25
6.5 Ventilation with PEEP valve . . . . 26
6.6 Ventilation with filter . . . . . . . . . 26
6.7 Demandflow . . . . . . . . . . . . . . . 27
6.8 Terminating ventilation or
Demandflow . . . . . . . . . . . . . . . 28
6.9 Alarm signals . . . . . . . . . . . . . . . 29
6.10 Audio response for user guidance 32
6.11 Calculation of oxygen content/
remaining operating time . . . . . 37
6.12 Alternative ventilation procedures 39
7. Hygienic preparation . . . . . . . . 40
7.1 MEDUMAT Easy . . . . . . . . . . . . . . 40
7.2 Patient valve . . . . . . . . . . . . . . . . 40
7.3 Ventilation hose . . . . . . . . . . . . . . 42
7.4 Masks . . . . . . . . . . . . . . . . . . . . . 42
7.5 Fittings. . . . . . . . . . . . . . . . . . . . . 42
7.6 Cleaning and disinfection 
procedure . . . . . . . . . . . . . . . . . . 43
8. Functional checks . . . . . . . . . . . 45
8.1 Intervals . . . . . . . . . . . . . . . . . . . . 46
8.2 Checking for leaks in the system . 47
8.3 Check patient hose system . . . . . 48
8.4 Checking the minute volume . . . . 49
8.5 Checking maximum ventilation
pressure . . . . . . . . . . . . . . . . . . . . 50
8.6 Checking Demandflow . . . . . . . . 51
8.7 Checking the alarm systems . . . . . 52
9. Troubleshooting . . . . . . . . . . . . 54
10. Servicing . . . . . . . . . . . . . . . . . . . 56
10.1 Batteries . . . . . . . . . . . . . . . . . . . 57
10.2 Change valve membrane in 
patient valve . . . . . . . . . . . . . . . . 58
10.3 Storage . . . . . . . . . . . . . . . . . . . . 58
10.4 Disposal . . . . . . . . . . . . . . . . . . . 59
11. Product and accessories . . . . . . 60
11.1 Standard product . . . . . . . . . . . . . 60
11.2 Accessories . . . . . . . . . . . . . . . . . 60
11.3 Spare parts . . . . . . . . . . . . . . . . . 62
12. Technical data . . . . . . . . . . . . . . 63
12.1 Pneumatic / electronic systems . . . 65
12.2 Relationship between ventilation
parameters. . . . . . . . . . . . . . . . . . 66
13. Warranty . . . . . . . . . . . . . . . . . . . 67
14. Declaration of conformity . . . . 67
15. Index . . . . . . . . . . . . . . . . . . . . . . 68

4Overview
EN
1. Overview
1.1 Device
Stenosis
Disconnection
< 2,7 bar O
2
16
15
13
14
14
12
12
11
10
10
9
11
16
7
5 30
3
MV (l/min)
Freq.(min
-1
)
Demand-
flow
60 mbar
50
40
30
20
10
0
MEDUMAT
Easy
A
2
5
4
3
9
8
6
1
7

Overview 5
EN
B
10
14
13
11
12
15
C
16
17
19
20
18
21
or

6Overview
EN
1.2 Special symbols on the ventilator
Patient valve
The symbol on the patient valve is a reminder
that the lip membrane must be changed immediate-
ly if it becomes crinkled, sticky or misshapen. The pa-
tient must not be used again until the membrane has
been changed, as this could cause malfunction (see
“8.3 Checking patient hose system” on page 48).
The symbol indicates the correct position for
insertion of the lip membrane.
When connecting the patient valve, take care to en-
sure that the direction of respiratory gas flow is cor-
rect (see arrows).
Position
> PSU< 134°

Overview 7
EN
MEDUMAT Easy
5678
3
2
1
4
1Inlet 2,7 - 6 bar O2
2Languages available on this device
MEDUMAT Easy device information plate
3
SN Serial number of device
Year of manufa cture
3.6 V lithium battery
Direct voltage
CE symbol (confirms that the product conforms to the
applicable European directives)
IP54 Protection against ingress of water
Protection class BF
Do not dispose of device in domestic waste
+–

8Overview
EN
4Follow instructions for use
5Tube system connection
6Maximum pressure 100 mbar
Safety check and servicing label
7
Safety check label: (in Germany only) marks when the next
safety check as per §6 of the German law relating to users of
medical devices is required.
8Servicing label: indicates when the next service is due.

Legend 9
EN
2. Legend
A: MEDUMAT Easy control panel
1Mask/tube ventilation switch with indicator LEDs
2Ventilation pressure gauge
3Alarm panel
4Alarm mute button
5Colour code
6Regulator knob, ventilation parameters
7Stop notch
8LED Demandflow
9ON/OFF switch
B: MEDUMAT Easy connections
10 Pressurized gas connection
11 Battery compartment
12 Speaker
13 Pressure gauge hose connection
14 Ventilation hose connection
15 Relief outlet valve
C: MEDUMAT Easy device combinations
16 Ventilation mask
17 Ventilation hose
18 Filter
19 Patient valve
20 PEEP valve
21 Tube

10 Description
EN
3. Description
3.1 Intended use
MEDUMAT Easy is an automatic oxygen respiration
device (short-term ventilator) with additional inhala-
tion facility.
You can use MEDUMAT Easy:
• to revive patients at the site of the emergency;
• for longer periods in more protracted
emergencies;
•for short-term O
2 inhalation using a respiration
mask.
You can use MEDUMAT Easy while transporting
patients:
• between the various rooms and departments of
a hospital;
• between the hospital and other premises;
• in emergencies;
• when transport over considerable distances is
planned.
MEDUMAT Easy:
• is designed to provide controlled ventilation to
persons of 10 kg body weight or more;
• is used to treat respiratory arrest;
•can be preset to parameters that ensure evenly
balanced ventilation, provided that the selected
maximum ventilation pressure Pmax is not
exceeded.

Description 11
EN
•permits respiration-controlled oxygen inhalation
in Demand mode.
3.2 Owner/operator and user qualification
As an owner/operator or user, you must be familiar
with the operation of this medical device. Observe
the legal requirements for operation and use (in Ger-
many, the regulations governing owner/operators of
medical devices apply in particular). Basic recom-
mendation: get a person authorized by WEINMANN
Emergency to provide you with proper instruction
about the handling, use and operation of this medi-
cal device.
3.3 Ventilation function
MEDUMAT Easy operates within a pressure range of
2.7 to 6 bar and at a flow rate of not less than
70 l/min O2. It has a built-in power pack.
It uses high-pressure, medicinal-grade oxygen. An
external pressure reducer brings this down to the re-
quired operating pressure. The oxygen supply is fed
in at input valve.
The ventilation settings are continuously variable.
These settings (frequency and volume per minute
are coupled) 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
16
15
13
14
14
12
12
11
10
10
9
11
16
7
530
3
MV (l/min)
Freq.(min
-1
)
Demand-
flow
10
0

12 Description
EN
fitted with a lip membrane that enables expired gas
to be conducted away through the expiration tube.
You can check the course of ventilation at ventilation
pressure gauge.
3.4 Demandflow function
The Demandflow setting switches the
MEDUMAT Easy breathing-controlled O2 inhalation.
Such inhalation must be carried out with the respira-
tion 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.
3.5 Patient hose system with patient valve
The respiratory gas is routed to the patient via the
patient hose system with patient valve. The patient
hose system with patient valve is designed so that
even if the ventilator fails, spontaneous breathing is
possible, regardless of which ventilation mode you
have selected.
9
60
mbar
50
40
30
20
10
0
16
15
13
14
14
12
12
11
10
10
9
11
16
7
5 30
3
MV (l/min)
Freq.(min
-1
)
Demand-
flow
10
0
Demandflow setting
Respiration hose connection
Expiration
tube
Connection
for pressure
gauge tube
Mask/tube
connection
Sponta-
neous
breath-
ing tube

Description 13
EN
3.6 Audio response
The device has an audio response facility that can be
switched on for user guidance, especially for users
who have little practice.
If audio response is not required, a key combination
can be used to switch it off (see “6.10 Audio re-
sponse for user guidance” on page 32).

14 Safety instructions
EN
4. Safety instructions
4.1 Safety regulations
For your own safety, the safety of your patients, and
to comply with the requirements of EU Directive 93/
42/EEC, please observe the following points:
General
• Please read the directions for use carefully. They
are an integral part of the ventilator and must be
kept available for reference at all times.
• Use the MEDUMAT Easy for the described pur-
pose only (see “3.1 Intended use” on page 10).
• The user must subject the patient hose system to
a functional check and a visual inspection before
use (see “8.3 Checking patient hose system” on
page 48).
Note: • Do not use the MEDUMAT Easy in toxic environ-
ments or where there is a risk of explosion.
• MEDUMAT Easy is not suitable for hyperbaric
use (pressure chamber).
• Do not use MEDUMAT Easy with flammable
anesthetics.
• A back-up ventilator should always be available
in case of technical failure.
• Before starting to work with MEDUMAT Easy,
you must understand how to operate it.
• To prevent infection or bacterial contamination,
please observe section “7. Hygienic prepara-
tion” on page 40.

Safety instructions 15
EN
• MEDUMAT Easy should be used only by medi-
cally qualified personnel who have had training
in ventilation techniques. Incorrect use can cause
severe physical injury.
• Please note that a safe distance must be main-
tained between MEDUMAT Easy and equipment
that emits HF radiation (e.g. mobile phones),
otherwise malfunctions may occur (see “ Rec-
ommended safe distances between portable or
mobile HF telecommunication devices (e.g. mo-
bile phones) and MEDUMAT Easy” on page 64).
•We recommend that maintenance work such as
inspections and repairs be performed only by the
manufacturer, WEINMANN Emergency, or by
qualified technicians expressly authorized by
WEINMANN Emergency.
• Malfunctions and a lack of biocompatibility may
result if third-party articles are used. Please note
that in such cases all warranty entitlement and li-
ability claims shall be void where items other
than the accessories recommended in the in-
structions for use or original spare parts are
used.
• Design changes to the device are not permitted
and may put patients and users at risk.
Oxygen
Spontaneous explosive reactions can occur if high-
pressure oxygen comes into contact with flammable
substances (fat, oil, alcohol etc.):
• Keep the equipment and all screw connections
absolutely free from oil and grease.
• Always wash your hands before starting to work
on the oxygen supply.

16 Safety instructions
EN
•Smoking and open flames are strictly prohibited
in the vicinity of all fittings containing or trans-
porting oxygen.
•During assembly and when changing the oxygen
cylinder, only hand pressure should be used
when tightening the screw connections to the
cylinder and to the pressure reducer. Never use
tools for this purpose. Excessive tightening dam-
ages the screw threads and seals, and can cause
leaks.
• Protect oxygen cylinders from accidental falls. If
a cylinder falls over, the pressure reducer or the
valve may break off and cause a violent explo-
sion.
Important • Always open the valve of the oxygen cylinder
slowly to prevent pressure damage to the other
fittings.
• The oxygen cylinder should never be completely
emptied, as this may allow air containing mois-
ture to enter the cylinder and cause corrosion.
Ventilation/Operation
•Both patient and ventilator must be kept under
constant observation during ventilation.
• When connecting the patient valve, please ensu-
re that the direction of respiratory gas flow
(> patient >) is correct. Make sure that neither
the expiration tube nor the spontaneous breath-
ing tube on the patient valve are blocked or their
function impeded in any other way, e.g. by the
patient’s position.
Note: • Disposable hose system WM 28110 is intended
to be used only once.

Safety instructions 17
EN
Software
• Extensive validation tests have been performed
to minimize risks arising from software errors.
Accessories
• Please protect the silicone and rubber compo-
nents from UV radiation and prolonged expo-
sure to direct sunlight, as this can make them
brittle and friable.

18 Installation
EN
5. Installation
A permanent mounting is usually necessary only
when MEDUMAT Easy is installed as a fixture in res-
cue vehicles, helicopters or aircraft.
If MEDUMAT Easy is supplied complete on a porta-
ble system or in an emergency rucksack, it is ready
for use and requires no further installation. Separate
directions for use are supplied for portable systems
and emergency rucksacks.
In order to ensure safe and reliable operation, func-
tional tests must be carried out after installation (see
“8. Functional checks” on page 45).
5.1 Connecting the oxygen cylinder
Always wash your hands thoroughly before starting
any work on the oxygen supply. Products containing
hydrocarbons (e.g. oils, greases, alcohols, hand
creams, sticking plasters) may cause explosive reac-
tions if they come into contact with high-pressure ox-
ygen.
Never use wrenches or similar tools to tighten or
loosen the screw connections.
Removing the empty cylinder
1. Close the valve of the oxygen cylinder.
Switch on MEDUMAT Easy with ON/OFF switch.
This exhausts any residual oxygen and depres-
surizes the ventilator. Wait until the pressure
gauge on the pressure reducer shows an oxygen
content of zero before undoing the screw con-
nection by hand.

Installation 19
EN
2. First switch off MEDUMAT Easy again.
3. Then loosen the screw connection to the
cylinder.
Connecting the new cylinder
1. First briefly open and close the valve of the new
oxygen cylinder. This should blow out any particu-
late matter.
Keep the valve opening away from the body,
making sure that neither yourself nor other per-
sons can be injured by escaping particles.
2. Next use the fluted connecting nut to couple the
pressure reducer to the valve on the oxygen cyl-
inder. Tighten the connecting nut by hand.
3. If the pressure hose is not already connected to
the exit from the pressure reducer, make this
connection with the G 3/8 connecting nut.
4. Screw the other end of the pressure hose on to
pressure gas connection on the MEDUMAT Easy
if this has not yet been done.
5.2 Ventilation hose
1. Slide the pressure gauge tube onto connection.
2. Slide the ventilation hose onto connection.
Make sure that this does not cause any kinks in
the pressure gauge tube already connected. If
necessary, turn the ventilation hose while sliding
on as appropriate.

20 Installation
EN
Always grasp the ventilation hose and
pressure gauge tube by their end only,
otherwise they may be damaged or split.
3. Connect the patient valve to the other end of the
ventilation hose and pressure gauge tube.
4. If a mask is being used for ventilation, attach the
mask connection to the patient valve (identical
with tube connection),
or
if the patient is intubated, attach the patient
valve to the tube.
Filter
If a filter is to be used, this should be installed
between the patient side connector on the patient
valve and the mask or tube.
Always follow the instructions supplied by the
manufacturer of the filter.
Position
>PSU<134°