Weinmann OXYWAY Series User manual

OXYWAY
From serial number 0850000
À partir du numéro de série 0850000
A partire dal numero di serie 0850000
Vanaf serienummer 0850000
A partir del número de serie 0850000
Od numeru seryjnego 0850000
Description and instructions for use
Description et mode d’emploi de l’appareil
Descrizione dell' apparecchio e istruzioni per l'uso
Beschrijving van het apparaat en gebruiksaanwijzing
Descripción del aparato e instrucciones de uso
Opis aparatu i instrukcja obsługi

English 3
Français 34
Italiano 64
Nederlands 96
Español 126
Polski 156

Overview 3
EN
English
Overview
1Contents gage
Fixed pressure reducer “Fix” Multistep pressure reducer “Fast”
Variable pressure reducer “Fine”
2Connecting union
(oxygen cylinder)
1Contents gage
3Body
5Oxygen outlet
(to appliance)
4Multistep adjuster
6Flow gage
10 Safety valve
2Connecting union
(oxygen cylinder)
3Body
5Oxygen outlet
(to appliance)
7Adjuster knob
Pressure reducer from the rear
11 Filter screw
9Unit number
8Service label
Multistep pressure reducer
“Fast II High Flow”
5Oxygen outlet
(to appliance)
1Contents gage
2Connecting union
(oxygen cylinder)
4Multistep adjuster

4Special information on the unit itself
EN
Special information on the unit itself
The symbol on the scale of contents gage 1is to remind
you that the pressure reducer must never be allowed to
come into contact with combustible substances (oil, alco-
hol, grease etc.), as these may cause explosive reactions
with oxygen.
Serial number (SN): The first two digits of the unit number indicate the year of
manufacture. The following five digits are used for consec-
utive numbering of the individual units.
Instructions for use WM 16633 apply to devices up to
serial number 0849999.
Serial number
Serial number
Year made

Safety information in these instructions 5
EN
Safety information in these
instructions
Safety information in these instructions for use is marked as follows:
Warning!
Warns of risk of injury and potential material damage.
Caution!
Warns of material damage and potentially false therapy results.
Note:
Contains useful tips.

6Content
EN
Content
1. Description . . . . . . . . . . . . . . . . . . . 7
1.1 Purpose . . . . . . . . . . . . . . . . . . . . . 7
1.2 User qualification . . . . . . . . . . . . . . 7
1.3 Function. . . . . . . . . . . . . . . . . . . . . 7
2. Safety Information . . . . . . . . . . . 10
2.1 Safety provisions . . . . . . . . . . . . . 10
2.2 Side effects . . . . . . . . . . . . . . . . . 12
3. Assembly . . . . . . . . . . . . . . . . . . . . 13
3.1 Connecting oxygen cylinder . . . . . 13
3.2 Disconnecting pressure reducer . . 14
4. Operation . . . . . . . . . . . . . . . . . . . 15
4.1 Preparing for use . . . . . . . . . . . . . 15
4.2 Setting flow . . . . . . . . . . . . . . . . . 15
4.3 After operation . . . . . . . . . . . . . . 17
4.4 Storage . . . . . . . . . . . . . . . . . . . . 17
4.5 Calculating contents. . . . . . . . . . . 18
5. Hygienic preparation . . . . . . . . . 19
5.1 Intervals . . . . . . . . . . . . . . . . . . . . 19
5.2 Cleaning . . . . . . . . . . . . . . . . . . . 19
5.3 Disinfecting . . . . . . . . . . . . . . . . . 19
5.4 Changing patients . . . . . . . . . . . . 20
6. Functional Checks . . . . . . . . . . . . 21
6.1 Intervals. . . . . . . . . . . . . . . . . . . . 21
6.2 Checking the system for leaks . . . 22
6.3 Checking for leaks in the safety
valve . . . . . . . . . . . . . . . . . . . . . . 23
7. Troubleshooting . . . . . . . . . . . . . .24
8. Maintenance . . . . . . . . . . . . . . . . . 25
8.1 Replacing the filter screw. . . . . . . 25
8.2 Replacing sealing ring . . . . . . . . . 26
8.3 Disposal. . . . . . . . . . . . . . . . . . . . 26
9. Product, Accessories . . . . . . . . . . 27
9.1 Explanation of numbers . . . . . . . . 27
9.2 Standard product. . . . . . . . . . . . . 27
9.3 Accessories . . . . . . . . . . . . . . . . . 27
10. Technical Data . . . . . . . . . . . . . . . 29
11. Warranty . . . . . . . . . . . . . . . . . . . . 31
12. Declaration of conformity . . . . . 32

Description 7
EN
1. Description
1.1 Purpose
The pressure reducers are for administering medical oxygen at reduced pressure for various
devices from the medical and therapy fields and for administering oxygen to the patient via
a system (e.g. nasal cannula, oxygen mask, humidifier). The pressure reducers are intended
for connection to high-pressure oxygen cylinders (up to 20,000 kPa = 200 bar cylinder
pressure).
The pressure reducers are not intended to drive surgical tools.
1.2 User qualification
Patients must be instructed in the use of the device by qualified personnel before therapy
begins.
1.3 Function
During use, the oxygen from the cylinder passes through the cylinder valve and connecting
union 2into the body 3of the pressure reducer. The cylinder pressure (inlet pressure) can
be read on the contents gage 1.
A filter screw with an integrated sintered filter removes any impurities. Another sintered
filter reduces the flow of oxgen. The filter screw 11 is located in the opening of connecting
union 2. The second sintered filter is installed between connecting union 2and body 3.
In the reduction stage, cylinder pressure is reduced to the operating pressure (outlet pres-
sure) required in each case of between 0.5 and max. 5.5 bar, depending on type . The prin-
ciple used here, with crater-type bore and spring-loaded piston, ensures particularly
constant pressure, despite variations in flow.
All pressure reducers are protected against excessive pressure by a safety valve 10.
The following pressure reducers are described in these operating instructions:

8Description
EN
Fixed pressure reducer (Fix)
A constant flow is generated by a fixed orifice in oxygen
outlet 5.
The pressure reducers listed above differ in the length and
position of the connecting union 2.
Variable pressure reducer (Fine)
The piston is acted on by a second spring which is adjust-
able by means of a spindle system. This makes it possible
to set different operating pressures (outlet pressures). In
conjunction with the fixed orifice in oxygen outlet 5, you
can therefore set different flow rates. The flow setting is
read off at flow gage 6.
The pressure reducers listed above differ in the length and
position of the connecting union 2.
Multistep pressure reducer (Fast)
As in the fixed pressure reducer, these produce a constant
operating pressure (outlet pressure).
Multistep adjuster 4houses an orifice disk with orifices of
different diameters which are brought into line with oxy-
gen outlet 5by means of a locating system. This enables
you to set different flow rates.
The pressure reducers listed above differ in the length and
position of the connecting union 2.
Multistep pressure reducer (Fast II High Flow)
As in the Fast multistep pressure reducers, there is an ori-
fice disk with a variety of orifice diameters in adjuster 4
which is brought into line with oxygen outlet 5by means
of a locating system.
In addition to the flow outlet, there is a pressure outlet for
medical devices with an oxygen requirement in excess of
90 l/min. The pressure outlet and the flow outlet may not
be in operation simultaneously.

Description 9
EN
Oxygen outlets
Oxyway pressure reducers are available with different oxy-
gen outlets: variable pressure outlet and flow outlet (see
also “10. Technical Data” on page 29).
Flow outlets are intended for the direct supply of the pa-
tient, e.g. via nasal cannula, mask or intermediate humid-
ifier. Flow outlets have a 9/16 UNF thread.
Pressure outlets are intended to supply ventilators such as
the Medumat, modules or distributor bars. Pressure out-
lets have a G 3/8" thread.
Flow outlet
(Fix I, Lateral outlet Fix I)
9/16 UNF thread
Flow outlet
(Fine I up to III)
9/16 UNF thread
Flow outlet
(Fast I / III)
9/16 UNF thread
Pressure and flow outlet
(Fast II)
G 3/8"
thread 9/16 UNF
thread
Pressure outlet
(Fix III, Fix III left)
G 3/8" thread
Pressure and flow outlet
(Fast II High Flow)
9/16 UNF
thread
G 3/8"
thread

10 Safety Information
EN
2. Safety Information
2.1 Safety provisions
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
Caution!
• Read these operating instructions carefully. They are part of to the pres-
sure reducer and must be available at all times.
• Before working with the pressure reducer, you should understand how
it works. In the event of queries, contact your authorized dealer or the
manufacturer.
• Use the pressure reducer for the designated purpose only (see “1.1
Purpose” on page 7).
• Have all inspection and servicing work carried out by the manufacturer
(Weinmann) or by a trained authorized dealer.
• If third-party items are used, functional failures may occur and fitness for
use may be restricted. Biocompatibility requirements may also not be
met. Please note that in such cases, any claim under warranty and liability
will be voided if neither the accessories nor genuine replacement parts
recommended in the instructions for use are used.
• A spare unit must always be kept handy in case of failure.
• Please observe the section “5. Hygienic preparation” on page 19 in order
to avoid infection or bacterial contamination.
•Inadequate supply of oxygen possible.
Never use pressure reducers with a flow outlet to operate medical devic-
es. The supply pressure of the flow outlets is inadequate for this and
could result in malfunctions or failures of the medical devices and thus in
a risk to the patient.
•Inadequate supply of oxygen possible.
With oxygen requirements in excess of 90 l/min, the pressure outlet and
the flow outlet may not be in operation simultaneously.

Safety Information 11
EN
•Device failure possible.
Read the technical data before connecting a medical product. The use of
incompatible devices can lead to the failure of these devices.
•Inadequate supply of oxygen possible.
Ensure that the multistep adjuster “engages” properly in the desired set-
ting on OXYWAY Fast pressure reducers. If the flow adjuster is between
two adjacent settings, no oxygen will flow out. This can lead to a risk to
the patient.
•Inadequate supply of oxygen possible.
Keep the flow in OXYWAY Fine pressure reducers under regular obser-
vation and adjust it again if necessary. If the device is used for a pro-
longed period without interruption, the set flow rate will gradually fall as
cylinder pressure drops. This can lead to a risk to the patient.
•Uncontrolled oxygen output possible!
The pressure outlets of the pressure reducers have no nonreturn valve to
seal the pressure outlet automatically when the connector is removed.
When changing devices, therefore, shut off the oxygen cylinder and vent
the system (see “4.3 After operation” on page 17) before removing con-
nected devices or tubes.
Oxygen
Warning!
Highly compressed oxygen in conjunction with combustible substances (grease, oil,
alcohol etc.) may give rise to spontaneous explosive reactions:
• Keep the units and all screwed unions absolutely free from oil and
grease.
• You must never on any account place the pressure reducer in a disinfec-
tant solution or any other cleaning solution. Liquid must never be al-
lowed to enter the pressure reducer because of the resulting explosion
risk. A clean cloth, moistened if necessary with clean warm water, is
enough for cleaning.
• Be sure to wash your hands before working on the oxygen supply.
Warning!
• If oxygen is being supplied to the respiratory flow, smoking and naked
flames are forbidden. Risk of fire. The oxygen can accumulate in cloth-
ing, bed linen or hair. It can only be removed by thorough ventilation.
• When assembling the unit and when changing cylinders, tighten all
screwed unions on the oxygen cylinder and the pressure reducer by hand

12 Safety Information
EN
only. Never use tools. Overtightening damages the screw threads and
seals, resulting in leaks.
• Secure the oxygen cylinders so that they cannot fall over. If a cylinder falls
on the pressure reducer or valve, these could break off, causing a violent
explosion.
Caution!
• Always open the cylinder valve slowly to prevent pressure hammer in the
system. Pressure hammer can cause damage to the pressure reducer and
the connected devices, or increase the likelihood of spontaneous igni-
tion.
• Do not empty the cylinder completely, as this may allow moist ambient
air to enter the cylinder and cause corrosion.
2.2 Side effects
Ask your physician or pharmacist about any side effects which may occur during the inha-
lation of medical oxygen and read the “medical oxygen” information leaflet enclosed with
the product.

Assembly 13
EN
3. Assembly
Warning!
Wash your hands thoroughly before doing any work on the oxygen supply. Hydro-
carbon compounds (e.g. oil, grease, cleaning alcohol, hand cream or adhesive plas-
ter) can cause explosive reactions if they come into contact with highly compressed
oxygen.
Never use wrenches or other tools to tighten or unscrew the union nut.
Warning!
After assembly you must perform a functional check (see “6. Functional Checks”
on page 21), to ensure reliable operation.
3.1 Connecting oxygen cylinder
1. Briefly open the valve of the new oxygen cylinder, then shut it again. This is to blow
away any particles of dust.
Warning!
In doing so, it is essential to hold the cylinder so that the connector never points at
you or another person, otherwise rapidly-dispersing particles of dust could get into
the eye and lead to damage. It is also important to prevent O2getting into clothing.
2. Make sure that there is absolutely no dirt on the connecting threads of the oxygen cyl-
inder and the pressure reducer.
3. Check that the filter screw 11 is clean. If necessary, fit a new filter screw (see “8.1 Re-
placing the filter screw” on page 25).
4. Screw the pressure reducer to the cylinder valve with the
corrugated union nut of the connecting union 2. Tight-
en the union nut by hand.
As soon as the oxygen cylinder is opened, the pressure in-
side the cylinder pushes the sealing ring into the wedge-
shaped annulus between the oxygen cylinder valve and
the pressure reducer, thus providing an effective seal.

14 Assembly
EN
5. To find out how to connect the device that you want to supply with oxygen, please con-
sult the operating instructions for the relevant device.
3.2 Disconnecting pressure reducer
1. Close the oxygen cylinder valve.
2. Release the pressure in the system, e.g. by switching a connected device on and then
off or by opening a shut-off valve.
While the system is under pressure, the sealing ring is pressed into the wedge-shaped
circular gap between the oxygen cylinder valve and connecting union 2. For this reason
it is impossible to remove the pressure reducer under pressure.
3. Unscrew the union nut 2by hand.

Operation 15
EN
4. Operation
4.1 Preparing for use
Caution!
Inadequate supply of oxygen possible. Never use pressure reducers with a flow
outlet to operate medical devices. The supply pressure of these pressure reducers is
not adequate for this and could result in malfunctions or failures of the medical de-
vices and thus in a risk to the patient.
1. Slowly open the valve of the oxygen cylinder. Do not
turn the valve more than one turn to the left.
The contents gage 1now indicates the cylinder
pressure.
2. If necessary, calculate the amount of oxygen left in the
cylinder (see “4.5 Calculating contents” on page 18),
to ensure that the connected devices can operate long
enough.
4.2 Setting flow
Fixed pressure reducer (Fix)
The flow rate is set and cannot be altered.
Variable pressure reducer (Fine)
Set the desired flow (outlet volume) on adjuster knob 7.
You can read the set value on the flow gage 6.

16 Operation
EN
Caution!
Inadequate supply of oxygen possible. Keep the flow under regular observation
and adjust it again if necessary. If the device is used for a prolonged period without
interruption, the set flow rate will gradually fall as cylinder pressure drops. This can
lead to a risk to the patient.
Multistep pressure reducer (Fast)
Set the multistep adjuster 4to the desired value.
Caution!
Inadequate supply of oxygen possible.
Ensure that the multistep adjuster “engages” properly
in the desired setting on OXYWAY Fast pressure reduc-
ers. If the flow adjuster is between two adjacent set-
tings, no oxygen will flow out. This can lead to a risk to
the patient.
Cylinder pressure (contents gage)
200 bar 100 bar 50 bar
min.
Specified
max.
Quantity dispensed (flow gage)
Flowwhen nitadjusted
Flowwhenadjusted
Flowwhen nitadjusted

Operation 17
EN
4.3 After operation
Caution!
Never empty the oxygen cylinder completely. Always ensure that there is a certain
residual pressure in the cylinder when you return it for filling, as this prevents moist
ambient air from entering the cylinder and causing corrosion.
1. Check the remaining oxygen content on the contents
gage 1. You should change the cylinder in good time,
e.g. when the pressure drops below 50 bar, to ensure
a sufficiently long operating time.
2. Close the valve on the oxygen cylinder by turning it to
the right.
3. In the case of variable or multistep pressure reducers,
set the flow to “0”. This will prevent pressure hammer
in the fittings when the oxygen cylinder is opened again
later.
Caution!
The pressure reducer is not a shut-off valve. Even if it is completely closed, it is still
possible for a small quantity of oxygen to escape. You should therefore always be
sure to close the oxygen cylinder valve after use.
4.4 Storage
If the pressure is not going be used for a considerable length of time, we recommend the
following procedure:
1. Clean the pressure reducer (see “5. Hygienic preparation” on page 19).
2. Store the pressure reducer in a dry place.
Caution!
Be sure to observe the maintenance intervals for stored units as well, as otherwise
the unit must not be used when removed from storage.

18 Operation
EN
4.5 Calculating contents
Oxygen content = cylinder volume x cylinder pressure.
Cylinder volume x Cylinder pressure = Oxygen content
Example 1 10 l x 200 bar = 2000 l
Example 2 2 l x 100 bar = 200 l

Hygienic preparation 19
EN
5. Hygienic preparation
5.1 Intervals
This product may contain disposable items. Disposable items are intended to be used
only once. So use these items only once and do not reprocess them. Reprocessing dispos-
able items may impair the functionality and safety of the product and lead to unforeseeable
reactions as a result of ageing, embrittlement, wear, thermal load, the effects of chemical
processes, etc.
Clean the device as described in Section “5.2 Cleaning” as required, e.g. after use in a
dusty environment.
Disinfect the device as described in Section “5.3 Disinfecting” as required, in particular
when changing patients or in the event of direct contact between the patient and the
device.
5.2 Cleaning
Warning!
Risk of fire. Do not use cleaning agents. Cleaning agents containing alcohol or
moisturizers form a flammable mixture in combination with oxygen.
Caution!
Device damage possible. Ensure that no liquids get into the device, otherwise
there may be damage to the device.
• If external cleaning is required, use only a clean cloth. The cloth can be
dry or moistened with clean water.
5.3 Disinfecting
Warning!
Risk of injury. Ensure that no disinfectant gets into the tubes, otherwise the disin-
fectant will get into the patient’s respiratory tract together with the oxygen.
Device damage possible. Ensure that no liquids get into the device, otherwise
there may be damage to the device.

20 Hygienic preparation
EN
• For disinfecting by wiping, we recommend a 0.5 % solution of
TERRALIN®. You should also follow the instructions for use enclosed with
the disinfectant. You are recommended to wear suitable gloves (e.g.
household or disposable gloves) during disinfection procedures.
5.4 Changing patients
• Perform a hygiene treatment as described in “5.2 Cleaning” and
“5.3 Disinfecting”.
• Replace disposable items such as nasal cannula, spiral tube or humidifier
with new parts.