Atmos C 051 Thorax User manual

Operatinginstructions
ATMOS ®C 051 Thorax
317.0000.B
2016-03 Index: 06
English

2
Further information, accessories, consumables and
spare parts are available from:
ATMOS
MedizinTechnik GmbH & Co. KG
Ludwig-Kegel-Straße 16
79853 Lenzkirch/Germany
Tel. + 49 7653 689-0
Fax: + 49 7653 689-190
+ 49 7653 689-292 (Service Center)
[email protected]
www.atmosmed.de

1.0 Introduction................................................................................................................................................. 4-7
1.1 Notes on operating instructions................................................................................................................................................ 4
1.2 Intended use................................................................................................................................................................................... 5
1.3 Function ........................................................................................................................................................................................... 7
1.4 Transport and storage ................................................................................................................................................................. 8
1.5 Explanation of symbols................................................................................................................................................................ 9
2.0 Safety advice............................................................................................................................................ 10-13
2.1 Notice ......................................................................................................................................................................................10-11
2.2 Caution...........................................................................................................................................................................................12
2.3 Warning..........................................................................................................................................................................................12
3.0 Setting up and starting up .....................................................................................................................14-18
3.1 Scope of delivery..........................................................................................................................................................................14
3.2 Device overview ...........................................................................................................................................................................15
3.3 Starting up.....................................................................................................................................................................................16
3.3.1 Charging the battery................................................................................................................................................................16
3.3.2 Secretion canister ....................................................................................................................................................................17
3.3.2.1 Secretion canister overview ...............................................................................................................................................17
3.3.2.2 Pop-Off valve..........................................................................................................................................................................17
3.3.2.3 Connecting the secretion canister ...................................................................................................................................17
3.3.2.4 Exchanging the secretion canister ...................................................................................................................................18
3.3.3 Connecting the hose system.................................................................................................................................................18
4.0 Operating..................................................................................................................................................19-29
4.1 Explanation of the display .........................................................................................................................................................19
4.2 Buttons and display symbols..............................................................................................................................................20-21
4.3 Switch on .......................................................................................................................................................................................21
4.4 Leakage test..................................................................................................................................................................................22
4.5 Function .........................................................................................................................................................................................23
4.5.1 Target vacuum ...........................................................................................................................................................................23
4.5.2 Suction .........................................................................................................................................................................................23
4.6 Release of keylock .......................................................................................................................................................................24
4.7 Therapy progress.........................................................................................................................................................................25
4.7.1 Shorttime.....................................................................................................................................................................................25
4.7.2 Longtime......................................................................................................................................................................................25
4.7.3 Transfer of therapy data..........................................................................................................................................................26
4.7.4 Reading out the therapy data ................................................................................................................................................27
4.8 Switch off ........................................................................................................................................................................................28
4.9 User settings............................................................................................................................................................................28-29
5.0 Warning messages ..................................................................................................................................30-31
6.0 Functions....................................................................................................................................................... 31
6.1 Hose rinsing ...................................................................................................................................................................................31
7.0 Accessories, consumables and spare parts .........................................................................................32-34
7.1 Attachment of the universal bracket .......................................................................................................................................32
7.2 Attaching/removing the ATMOS®C 051 Thorax to/from the universal bracket ...........................................................33
7.3 Connecting of shoulder belt ......................................................................................................................................................34
8.0 Cleaning and care....................................................................................................................................35-37
8.1 General information on cleaning and disinfection..............................................................................................................35
8.2 Cleaning of the device surface .................................................................................................................................................36
8.3 Recommended disinfectants....................................................................................................................................................36
8.4 Hygiene plan .................................................................................................................................................................................37
9.0 Maintenance and Service....................................................................................................................... 38-39
9.1 Basic information.........................................................................................................................................................................38
9.2 Repairs ...........................................................................................................................................................................................38
9.3 Handling of rechargeable batteries .........................................................................................................................................39
10.0 Eliminating errors ...................................................................................................................................... 40
11.0 Technical data ............................................................................................................................................ 41
12.0 Disposal ....................................................................................................................................................... 43
13.0 Notes on EMC......................................................................................................................................... 44-47
Table of contents

4
These operating instructions are valid from software-version 1.1.
These operating instructions contain important notes on how to operate
the ATMOS® C 051 Thorax safely, correctly and e ectively. Their reading
helps to avoid risks, and also to reduce repair costs and down-time.
That increases, amongst other things, the reliability and servicelife of the
device.
These operating instructions serve not only for new operating personnel
to be instructed in the use of the device, but also for use as a reference
manual. Full or partial reproduction is subject to prior written approval from
ATMOS.
These operating instructions must always be kept available near
the device.
Care and safety inspections in conjunction with professional execution
provide for operational safety and readiness for use of your ATMOS®
C 051 Thorax and are therefore a must besides regular cleaning.
Repair work and safety inspections may be carried out only by expert
personnel authorised by ATMOS. By applying only original spare parts
you will have the guarantee that operational safety, readiness for work
and the value of your ATMOS®C 051 Thorax will be preserved.
The product ATMOS®C 051 Thorax bears CE marking CE 0124
according to the EC Directive of the council for medical products
93/42/EEC and meets the basic requirements of annex I of this
Directive.
The product ATMOS®C 051 Thorax complies with all applicable
requirements of the directive 2011/65/EC restricting the use of certain
hazardous substances in electrical and electronic equipment (“RoHS”).
The declaration of conformity and our general standard terms and
conditions can be obtained on our website at www.atmosmed.com.
 The quality management system applied at ATMOS has been certi ed
according to international standards EN ISO 9001 and EN ISO 13485.
Prior to start-up please peruse chapter 2.0 „For your safety“, in order to
be prepared for any possible dangerous situations.
1.0 Introduction
1.1 Notes on operating instructions

5
1.2 Intended use
1.2.1 Intended use ATMOS®C 051 Thorax
Name: ATMOS®C 051 Thorax
Main functions:
Digital device for mobile thoracic drainage
Med. indications/ application:
Recovery of the neutral vacuum in the intra pleural cavity after the occurrence of a pneumothorax or a pleural
eusion by drainage of air and secretion.
Drainage of secretion and air after a surgical opening of the thorax.
Specication of the main function:
The ATMOS®C 051 Thorax drainage suction unit is a digital device for mobile thoracic drainage. The device is
meant for the short-term (< 30 d) application on humans. It is portable, grid independent and has an electronic
monitoring system with optical and acoustic status displays. The device is applied unsterile. However, the tubing
systems and the secretion canister, which have to be applied with the device, are sterile single use products. All
thoracic catheter / drains can be applied, which are intended for thoracic drainage in the intended use of the
manufacturer.
Application organ: Thorax
Application time:
Short-term use on the patient (< 30 days)
Application site:
The application site is the clinical area. The application of the device may only be applied by healthcare
professionals. The secretion canister and the drainage hose are sterile and disposable, and can be applied in
the sterile OT area.
Contraindications:
No separate application of the canister and the tubing system (this means without basic device) as gravity
drainage.
No application in ambulances under emergency conditions and in the home care eld which is not supervised
by healthcare professionals.
No suction of ammable, corrosive or explosive uids / gases.
The product is: X active □not active
Sterility: Not in case of the basic device
Single use product / reprocessing:
Reprocessing for the basic device see notes in the user manual.

6
1.2.2 Intended use ATMOS®C 051 Thorax secretion canister
Name:
Secretion canister for the exclusive connection to the ATMOS®C 051 Thorax.
Main functions:
Forwarding of the created vacuum into the drainage hose and nally into the patient-side drain.
Collection of the exhausted secretion.
Med. indications/ application:
Secretion canister for the connection to a digital device for mobile thoracic drainage.
Specication of the main function:
The vacuum generated by the pump evacuates air and secretion out of the drain. The secretion is collected
in the secretion canister whose lling quantity is 800ml. A bacterial lter prevents the potential contamination
of the room and the device by bacteria. Additionally it prevents the accidental intrusion of secretion into the
pump head. A sterile tubing system provides the vacuum for the patient-side drain. A direct connection to the
patient does not exist. With the support of the test measuring hose inside of the tubing system, which is also
provided with a lter, the actual vacuum on the drain will be measured. Furthermore the measuring hose is also
responsible for the ushing of the secretion hose with atmospheric air.
Application organ: Thorax
Application time:
Short-term use on the patient (< 30 days).
Application site:
Application environment is a clinical area. The application of the canister may only be applied by healthcare
professionals. The secretion canister and the drainage hose are sterile and disposable and can be applied in the
sterile OT area
Contraindications:
No application of the canister with other low vacuum devices than ATMOS®C 051 Thorax.
No separate application of the canister as gravity drainage.
The product is: □active X not active
Sterility: Sterile
Single use product / reprocessing: Sterile single use product

7
1.3 Function
The ATMOS®C 051 Thorax is an exceptionally handy, mobile, digital thoracic drainage suction device.
The device is operated via an electrical, maintenance-free membrane pump. During operation the pump creates
a vacuum within the suction hose and the secretion canister due to which secretion and air can be drained by
the hose system. The pump is controlled digitally and therefore secures that the chosen required vacuum value
is stable. The air ow, which is measured in real-time, is displayed in numbers. The secretion is collected in the
secretion canister. Its capacity is 800 ml. With the aid of the measuring and rinsing hose in the hose system the
vacuum at the end of the hose system is measured. Via the touch screen display the required vacuum can be set
manually. The suction power is regulated automatically.
The hose system is rinsed with air at regular intervals to prevent the collection of debris in the secretion hose.
This measure also prevents secretion from intruding into the measuring and rinsing hose or that a syphon eect
is created.
The device is equipped with a rechargeable battery. A charging unit which is located within the suction device
guarantees for the secure charging of the battery. Therefore it is impossible to overcharge the battery.
A bacterial lter located in the secretion canister prevents the intrusion of bacteria and secretion into the aggregation
space. The device is equipped with a carrying strap. The strap allows for mobility and the fastening of the device
e.g. to the patient’s beds. As an accessory a universal connection can be ordered separately.

8
1.4 Transport and storage
The transport of the device may be eected only in a dispatch carton upholstered and oering sucient
protection.
Please document and report damages in transit immediately.
For complaints or return deliveries, please use the enclosed form QD 434.
The form QD 434 can also be downloaded from: www.atmosmed.de
 The unit must be allowed to stand for up to six hours at room temperature prior to starting up for the rst
time following transport at temperatures below freezing. The unit may not be operated if it has not
acclimatised as this might damage its diaphragms.
Ambient conditions:
 Transport/Storage: -20...+50 °C;
5...95 % humidity non-condensing at air pressure700...1060 hPa
 Operation: +5...+35 °C;
20...80 % humidity non-condensing at air pressure700...1060 hPa
 Operation altitude: max. 3000 m

9
1.5 Explanation of symbols
!
■
●
→
click
click
Pictures contained in this manual
Warning,
special diligent notice!
Short cuts / symbols contained in this manual
Please press where
the dot indicates
Subnumeration
Numeration
General information
Follow the arrows whilst
proceeding, sequence
Replace
Check
Please read,
important information
Move, plug ... in this
direction
Engage,
check correct  t
Turn, shift ... in this
direction
Important information
Symbols of ATMOS®C 051 Thorax & Accessories
Serial number
Order number
Manufacturing date
The CE sign shows that
this product meets
the appropriate
requirements of the EC
Directives.
Electricity fuse
Class II
REF
SN
Please observe operating
instructions!
Application part
type BF
Multiple use of
components marked
with is not allowed.
This product is not
resterilisable.
In case of multiple use
this component looses
its characteristics and
there is a high risk of
infection.
2
2

10
2.0 Safetyadvice
2.1 Notice
NOTICE Damage to the device due to improperly installed protective contact
socket



The ATMOS®C 051 Thorax was produced in accordance with IEC
60601-1/EN 60601- it is a device of VDE-safety class II.
The device should only be connected to a properly installed protective
contact socket.
Prior to rst use compare the normal voltage of the device (see
indication label on the backside of the device) with the local mains
voltage.
NOTICE ATMOS cannot guarantee perfect functioning neither will it be liable
for damage to people or property
If:
any non-original ATMOS parts are used,
the user instructions given in this manual are not followed exactly
or are disregarded,
improper use
assembly, resetting, alterations, extensions and
repairs are not carried out by people authorised by ATMOS
NOTICE Electromagnetic compliance, damage to the device!
The ATMOS®C 051 Thorax should not be operated with devices not
complying with the requirements of standard EN 60601-1„Medical
Electrical Equipment“ and EN 60601-1-2 „Electromagnetic
Compatibility“ (Medical Electrical Equipment)
NOTICE Damage to the device due to low temperatures
After transport in temperatures below freezing point the device must
be acclimatised for up to 6 hours. If the device is not acclimatised it
should not be operated as the membrane in the aggregate could get
damaged.
NOTICE Damage to the device due to tilting
The device and the canister must be used upright at all times.
If the device should tilt it must be placed upright again in order to
guarantee faultless operation.
If you are insecure whether the canister works properly we advise you
to replace the canister so as to ensure the patients’ safety.
NOTICE Damage to the device due to heat



The device and the canister should not be dried in a microwave oven.
The mains cable and the device must be kept away from hot surfaces.
The device may only be operated at room temperature and should not
be subjected to direct solar irradiation as this could lead to errors.

11
NOTICE Legal advice


The operating instructions are in conformity with the device
specications standards on safety at the time of printing.
The circuits, processes, names, software programmes 01.28 and
devices are all covered by trade mark rights.
US law restricts sale of the device to physicians or ordering through
them.
NOTICE Appropriate operation











The user should be able to reach the operating panel comfortably and
should have a good view on it at all times.
The canister may not be used without the device (gravity drainage).
The device may only be used by trained professionals.
The removal of the canister from the device during the therapy may
only be performed by trained professionals which act in conformity
with internal regulations.
The ATMOS®C 051 Thorax is a medical device which is subject to
special safety regulations. It must to be set up and put into
operation in accordance with the EMC regulations included in this
manual. Portable and mobile RF communication devices (mobile
phones) may aect the performance of the device.
A second functioning device (consumables included) must be available
for every patient whose condition could become critical if the device in
use should get damaged.
The device may not be operated in MRI scanners (magnetic resonance
imaging).
The device may not be carried at the hose system.
The device supports the therapy of the patient it is not a substitute for
the doctors‘ diagnosis.
The patient should be supervised constantly in accordance with the
internal rules of the hospital.
Prior to the removal of the hose connector the patient hose must be
pinched o.
NOTICE Advice on disposal


Dispose of the packing material in a proper manner.
Attention must be paid to all hospital protocols regarding disposal and
infection control.
NOTICE Wrong evaluation


Prior to each application the device should be checked for leakages
(peruse chapter 4.4 – leakage test).
Leaking connections could lead to a wrong evaluation of the patients
status and could prolong the therapy. Thus do check all connections
for leakages to prevent the intrusion of additional air.

12
2.2 Caution
CAUTION Danger of injury



A misplaced drainage system and a misplaced patient hose could
hinder the drainage of air and liquids.
A complete blocking of the system during the drainage of liquids and
air could cause a rise in pressure and thus lead to a pressure
pneumothorax.
Place the drainage system below the thorax and check the patient
hose for bends and cloggings which could hinder the drainage of
liquids and air.
Immediate reaction is required in case of the warning message
"vacuum too low".
Prior to exchanging the secretion canister the drain at the patients side
must be clamped so that a continuous vacuum is always available at
the patient.
CAUTION Danger of injury




If the  uid level in the canister is too high it could cause a blockage
and thus a pressure pneumothorax.
Exchange the canister when the maximum  lling level is reached to
secure the patients safety.
Defective components in the system have to be exchanged immediately.
The patient hose connection should be checked regularly for correct
functioning.
CAUTION Danger of injury



A bent hose could cause a pressure pneumothorax.
The bending of the patient hose leads to an interruption of the therapy
and incorrect measurements.
The hose should not be bent.
CAUTION Danger of injury


A vacuum over -50 mbar could cause pain and injury to the patient.
Only under medical indication a vacuum over -50 mbar may be
adjusted.
2.3 Warning
WARNING Electric shock due to damaged connecting cables


Prior to use check the device and connecting cables for damages.
Damaged cables must be replaced!

13
WARNING Electric shock due to voltage




Prior to disconnecting the battery from the mains pull the plug from
the electrical socket, after that you can disconnect the connecting
cable from the battery.
Do not modify the device.
Please pay attention to the period tests in chapter "Maintenance and
service" on page 38.
Assembly, repairs and period tests may only be carried out by
authorized persons.
WARNING Electric shock due to voltage





Disinfectant or secretion should not enter the device or battery.
If disinfectant has penetrated the device, then it must be dried
thoroughly and subsequently an e ciency control must be conducted.
It should be tested if the target vacuum can be reached in a closed
system, as well as if there is a  ow > 4 l/min after a short while, when
the system is open. If not, the device must undergo a service check
before it resumes operation.
If secretion has entered or is sucked into the device then it must be
sent to the manufacturer or an authorized service partner.
The mains adapter should not get wet.
Don´t take a shower / bath with the device.
WARNING Danger of explosion due to unobserved ambient conditions
The ATMOS®C 051 Thorax may only be operated in rooms used for
medical purposes, but not in areas subject to explosion hazards
or in oxygen rich environments.
Explosion hazardous areas may result from the use of  ammable
anaestetics, skin cleansing agents and skin disinfectants.
Pay attention to the ambient conditions speci ed in chapter 11.0.
WARNING Risk of infection




This product is not re-sterilizable. Repeated reuse of components
which are marked with 2is forbidden. In case of repeated reuse
these components lose their function and there is a high infection
risk.
Repeated reuse of canister and hose systems can lead to infections.
Canister and hose system should only be used once on every patient.
For hygienic reasons we recommend an exchange of both canister and
hose system at the same time.
WARNING Risk of injury due to damaged device
If the device has been dropped: Check the unit for visible damage and
perform a leakage test. If the leakage test fails, the device is defective
and must not be operated. Send in the device for repair. Treatment
with defective equipment can cause fatal injuries to the patient.

14
Description
Basic device
Recharger
Mains cable
Operating instructions
Carrying strap
Strap holder
Quick guide
3.0 Setting up and starting up
3.1 Scope of delivery
The ATMOS®C 051 Thorax was subjected to thorough testing prior to packaging and shipment.
On receipt of the goods please check the package for any possible damage and compare the contents for
completeness ( see bill of delivery).

15
Back side:
1
2
3
5
4
6 Touch screen
(touch-sensitive display)
 On/off sensor
 Charging socket
 Secretion canister release
 Light sensor
 Clips for carrying strap
 Connection for secretion canister
Connection for clips
 Identification plate
 Canister guide
11 Measuring and rinsing hose connection
12 Cover cap USB-B (no function for user)
13 Connection for USB  ashdrive (therapy
data-transfer)
Only use the USB-connection for the transfer
of therapy data. A software update may only
be performed by ATMOS or an authorized
service person.
3.2 Device overview
Front side:
6
8
9
10
11
12
7
8
317.0000.0
ATMOS C 051 Thorax
13

16
3.3 Starting up
Remove the device from the box. Check whether the voltage values on the identi cation plate match with
the available mains voltage.
 Prior to the  rst start up peruse the safety noti cations in chapter 2.
 The battery must be fully charged prior to the  rst use. Charging time approx. 2.5 hours.
 Always place the device on a  at, save surface.
Plug in the mains cable to recharge the battery.
After transport in temperatures below the freezing point the device must be acclimatised for up to 6 hours.
If the device is not acclimatised it may not be operated as the membrane in the aggregate could get
damaged.
 Always have at least one more secretion canister at hand as the device can only be operated with the speci c
ATMOS secretion canister.
3.3.1 Charging the battery
Each bar of the symbol represents 20% battery charge.
Attention!
Prior to the  rst start up of the ATMOS®C 051 Thorax the battery must be fully charged.
Only the enclosed battery recharger (GTM 21097-5012) from ATMOS may be used.
Advice on the handling of the battery can be found in chapter 9.3.
Correct handling of the rechargeable batteries prolongs their maximum service life.
Rechargeable batteries are wearing parts and therefore excluded from the general warranty.
The device should be recharged in a cool place without direct solar irradiation. At ambient temperatures above
25°C the charging time could be prolonged drastically. Defects which occur due to improper handling of the
device are not covered by the guarantee.
Caution: If the battery temperature is higher than 35°C it can no longer be charged.
Plug the recharger into the charging socket of the
ATMOS®C 051 Thorax.
Connect the recharger to the country-speci c mains cable.
Plug the mains plug into the socket. The ATMOS®C 051 Thorax displays
the blinking symbol on the display.
When the battery is fully charged (the symbol does not
blink anymore) remove the plug from the socket.
After that remove the recharger plug from the charging socket of the
ATMOS®C 051 Thorax.
As soon as the battery charge level is less than 20%, the drainage unit
displays a warning window and triggers an audible warning message
(peruse chapter "5.0 Warning messages"). Charge the battery in
order to continue the therapy without interruption. If the battery is
too low for further operation of the device the ATMOS®C 051 Thorax
switches o automatically.
The battery of the ATMOS®C 051 Thorax can also be charged when
the device is switched o . The state of charge can be seen on the
display.
!

17

 Pop-off valve (10 mbar high
pressure)
 Connection to the drainage
unit (protected by a
hydrophobic bacterial filter)
Scales (in ml)
Connection to patient
(secretion channel)
Connection to patient
(measuring and rinsing system)
 Cover lid of the secretion
channel 
Cover lid for the connection to
the suction unit 
 Cover lid for the pop-off
valve 
 Canister guide




Important safety instructions
on the secretion canister
!
Always use the original ATMOS single use secretion canister
Vacuum connection system
The vacuum connection between device and canister is set up
immediately after connection!
For hygienic reasons we advise you to exchange hoses and canister
together.

3.3.2 Secretion canister
3.3.2.2 Pop-o valve
The pop-off valve is a protection against the occurrence of high pressure which could lead to a tension
pneumothorax. The valve opens at a high pressure of ≥10 mbar within the canister.
3.3.2.3 Connecting the secretion canister
1. Cautiously withdraw the secretion canister from the wrapping.
Affix the canister´s guide to the device´s guide on the back side of the
drainage unit (see device overview). Hold the canister slightly angled
to the device.
2. Push the secretion canister towards the ATMOS®C 051 Thorax until
they connect palpably and audibly and the release button returns to its
initial position.
3. Perform a slight pull-check on the canister to make sure that it is
connected securely and tightly to the device.




3.3.2.1 Secretion canister overview

18
Measuring and rinsing hose
Hydrophobic bacterial  lter
 Luer-Lock 4 mm
 Secretion hose
 Luer-Lock 6 mm
1. Remove the sterile hose system from the sterile wrapping.
2. Connect the Luer-Lock with the bacterial  lter to the lower canister
connection (on the secretion canister) by a cw rotation.
3. Connect the Luer-Lock connection with the larger diameter to the
upper connection of the canister (on the secretion canister) by
a cw rotation.
4. Perform a leakproof test (see chapter 4.4)
5. Use the sterile hose connector, supplied with the hose system,
to connect the hose system to any drainage catheter of your choice.
Alternately you can also use conventional sterile y-connectors or hose
connectors.
!


3.3.3 Connecting the hose system
1. Press the blue operating element (device overview) on top of the
device to release the canister.
2. Hold the secretion canister slightly angled and pull upwards to remove
it.
3. Place the secretion canister safely on an even surface.
4. Release the 2 Luer-Lock connections by a cc rotation to separate the
secretion canister from the hose system. Pay attention as secretion
could be found in the connection space.
5. Remove the blue cover lid and cover the upper Luer-Lock
connection with it (secretion channel).
6. Remove the yellow cover lid and cover the connection to the
drainage unit with it.
7. Remove the black cover lid  and cover the pop-o valve with it .
The used secretion canister is now ready for disposal.
8. Follow the instructions in chapter 3.3.2.3 to connect a new secretion
canister.
3.3.2.4 Exchanging the secretion canister



1.
2.

19
4.1 Explanation of the display
4.0Operating
Therapy progress
Setting button
Start / Stop
therapy Keylock manual
Setting button
System information
Target vacuum
Flow
Actual vacuum
Display of the actual
fistula
ATTENTION: This is the
current value. In the case of
a discontinuous fistula, the
value can decline temporarily
to zero although the fistula
still exists.
Display of the preadjusted
target vacuum to which the
pump adjusts
Changeover to the
graphic diagram
Increases the
target vacuum
Decreases the
target vacuum
User settings
Display of
the actual
vacuum value
Each additional coloured bubble
represents an additional flow.
None: 0 - < 30 ml/min
Green: 30 - < 60 ml/min
Yellow: 60 - < 630 ml/min
Orange: 630 ml - < 1,00 l/min
Red: > 1,00 l/min to maximum
Up to 1,00 l/min the flow is
displayed in ml/min.
Key lock activated
Flow displayed as bubbles
Day/Night Mode
The ATMOS®C 051 Thorax has a day/night
mode, the device adjusts automatically to the
environmental lighting.
Under low ambient light conditions display has
dark background illumination.

20
Figure Function
Decrease target vacuum / in the menu: decrease selected value
Increase target vacuum / in the menu: increase selected value
Graphic diagram of the therapy
Open the user settings
Save entry
Conrm information
Back / Exit menu
Warning / suppress the warning
Changeover to vacuum scaling
Changeover to time scaling
Changeover to ow scaling
Start therapy
Stop therapy
Hold / restart graphic
Increase maximum of axis
Decrease maximum of axis
Scroll up the list
Scroll down the list
Activate keylock
4.2 Buttons and display symbols
4.2.1 Buttons