• ATMOS S 201 Thorax

    The most powerful
    digital cardiothoracic
    drainage device for every
    patient indication

ATMOS S 201 Thorax

Digital cardiothoracic drainage with maximum safety

The powerful ATMOS S 201 Thorax is the ideal solution for cardiothoracic drainage patients in cardiac and thoracic surgery. Particularly for patients with large air leaks and large amounts of fluid, the ATMOS S 201 Thorax offers optimised cardiothoracic drainage therapy. It provides a high degree of safety thanks to the especially rapid, controlled vacuum build-up of the suction prescribed by the doctor. This safety feature is essential particularly in critical situations, such as when draining a haematoma or in the event of strong coagulation.

Digital Cardiothoracic Drainage ATMOS S 201


  • Hospital / clinic
  • Cardiothoracic surgery
  • Cardiac surgery
  • Emergency medicine
  • Intensive care unit
  • Operating room / anesthesiology
  • Pneumology
  • Normal ward
  • In-hospital transport
  • In-hospital emergencies

Simple, intuitive operating concept

Reduced care efforts for nursing staff thanks to intuitive, fast operation of the system

Quick and easy system set-up

Uncomplicated, quick set-up of the system within seconds. This feature brings decisive safety advantages, especially in emergency situations. Saves time in the OR, too. 

Automatic warning functions

Fast, automatic, visual and acoustic warning messages assist nursing staff in potentially dangerous situations. This feature reduces time-consuming monitoring tasks for staff.

Objective therapy data

  • Rapid evaluation of the clinical situation thanks to immediate recognition of therapy data on the front display
  • Safe decisions thanks to objective therapy data displayed in real time, in the trend display over 24 hours, and in a graph showing the course of therapy up to 12 days

Support for documentation

  • Recording, storage, and read-out capability of patient therapy data
  • Easy processing of therapy data read-outs is possible in patient documentation, studies, etc.

Transparent secretion canister

For patient indications involving very high amounts of secretion and the use of large rinsing quantities to clean the pleural cavity, this large secretion canister volume is an ideal solution.

  • Clear view of the nature and colour of secretion

  • Brief gravity drainage, e.g. for MRI examinations

  • Straight hose connection to prevent blockages

Double-lumen hose system

  • Permanent vacuum measurement and regulation:
    ­no siphon effect
  • Automatic periodic hose rinsing, individually adjustable
  • Universal use for all ATMOS Cardiothoracic Drainage Devices
  • Flexible use of different connector options


Safe carrying and positioning options

  • Flexible, secure placement, e.g. on a standard rail, bed, infusion stand, walking aid
  • Ergonomic carry handle
  • Convenient belt


Technical Data

ATMOS S 201 Thorax

Art. Nr. 312.1000.0
Suction capacity

18 ± 2 l/min

Vacuum control range

−5 up to −100 mbar,
in steps of 1 mbar


100–240 V~, 50/60 Hz

Dimensions (H x W x D)

365 x 250 x 168 mm


3.0 kg (without secretion canister)
3.7 kg (with secretion canister)

Noise level

max. 31 dB(A)

Battery type


Battery operation

max. 12 h

Battery charging time

2,5 h


wearable with shoulder strap

Data management

PDF and Excel report via USB flash drive

Secretion canister

4 chambers
Size: 2000 ml


What is the difference between the ATMOS C 051 Thorax and the ATMOS S 201 Thorax?

The ATMOS C 051 Thorax has a suction capacity of 5 l/min and a secretion canister with 800 ml capacity. This device is ideal for standard patients in the fields of lung surgery, pneumology, general surgery, intensive care, and emergency medicine.

The ATMOS S 201 Thorax, on the other hand, has a suction capacity of 18 l/min and a secretion canister volume of 2000 ml. This device is therefore ideally suited for specific patient indications. Above all, the powerful all-rounder is employed in cardiac surgery, but also for lung surgery patients who have large air leaks, such as patients with emphysema or large amounts of viscous fluid (e.g. empyema or chylothorax).

Can the hose system be used for both digital cardiothoracic drainage devices from ATMOS?

Yes, the hose system from ATMOS can be used flexibly for both digital cardiothoracic drainage devices from ATMOS. This feature helps make storage simple for hospitals and clinics. In addition, the hose system makes it easy to change from the ATMOS S 201 Thorax to the ATMOS C 051 Thorax when the patient's condition improves and to promote mobility.

Which therapy parameters does the display show for the patient undergoing cardiothoracic drainage?

Besides the set target vacuum, the display also shows the actual vacuum, which is measured at the patient’s end of the hose. In addition, the patient's air leak is shown objectively as flow in ml/min or in l/min for one litre or more. In key lock mode, the flow for at least one hour is also shown by means of bubbles in traffic light colours. If the average flow is below 450 ml/min for one hour, the flow is no longer displayed in bubbles but in a trend display of the last 24 hours.

How are the patient’s air leaks visualised?

Air leak is shown continuously in real-time numbers in ml/min or l/min on the display. In addition, the flow for at least 1 hour is visualised by means of bubbles in traffic light colours. If the average flow is below 450 ml/min for 1 hour, the air leak is shown in a trend display over the last 24 hours on the main display. The flow is visualised as an hourly average value in bars over the course of treatment. As soon as the hourly average value of the air leak is less than 150 ml/min, the flow scaling of the trend display becomes even more detailed. Air leaks during the therapy process are also illustrated in the graphs. The long-time display shows therapy data for up to 12 days, and certain time segments, for example, can be viewed individually using the zoom functions. The graphic short-time display can also visualise tests that can provide an indicator for a blocked thoracic catheter or for making the decision whether to remove the catheter.

With the ATMOS S 201 Thorax, the air leak can also be visualised conventionally by means of the optional water lock in the 2000 ml secretion canister.

Do the ATMOS Cardiothoracic Drainage Devices recognise potentially dangerous situations?

Yes, visual and acoustic warning messages indicate the reasons for errors and show information on how to remedy them on the display. This feature reduces time-consuming monitoring tasks for nursing staff.

How and at what intervals does hose rinsing work?

The automatic hose-rinsing function uses air, not liquid. A valve located inside the device directly at the connection for the measuring and rinsing hose opens and pushes air through the measuring and rinsing hose to the patient’s end of the hose. Due to the applied suction, the air is automatically diverted into the secretion hose, and the secretion, blood coagula, etc. in the hose are automatically flushed into the secretion canister. This makes milking obsolete for nursing staff, and the dangerous siphon effect cannot occur. On default settings, the hose is rinsed every 3 minutes.

The hose-rinsing period can be adjusted between 1 and 20 minutes. Immediately following an operation, especially after cardiac surgery, it may be advisable to rinse the hose more frequently (e.g. 1 minute) to prevent the formation of coagula/blockages in the catheter.

Can the secretion canister of the ATMOS S 201 Thorax be used for temporary conventional gravity drainage?

Yes, the secretion canister of the ATMOS S 201 Thorax can be used with a filled water lock for temporary gravity drainage, for example in MRI examinations. The secretion canister must be placed below the patient’s chest.

How is the water lock of the 2000 ml secretion canister filled?


Title Date Extension Size Language
Brochures & Flyers
Brochure ATMOS Cardiothoracic Drainage 10.06.2022 pdf 3.04 MB en, ru, cn, hu
Brochure ATMOS Medical Suction Systems 19.01.2022 pdf 3.58 MB en, ru, cn, hu
Flyer ATMOS Cardiothoracic Drainage 03.03.2021 pdf 254.30 KB en
Technical Documentation
Declaration of Conformity / Konformitätserklärung Accessories Fixation / Zubehör Befestigungen 31.08.2022 pdf 307.14 KB de, en, fr, cn, es, hu
Declaration of Conformity / Konformitätserklärung Canister, suction unit / Drainage, Sammelbehälter 30.05.2022 pdf 79.89 KB de, en, fr, cn, es, hu
Declaration of Conformity / Konformitätserklärung Drainage system, pleural / Drainagesystem, pleural 30.05.2022 pdf 77.91 KB de, en, fr, cn, es, hu
Declaration of Conformity / Konformitätserklärung Suction unit, thoracic / Absauggerät, thorakal 30.05.2022 pdf 74.24 KB de, en, fr, cn, es, hu
Operating Instructions ATMOS S 201 Thorax 16.02.2023 pdf 2.79 MB en, cn, hu
Quick Guide ATMOS S 201 Thorax 14.01.2022 pdf 1.00 MB en



Secretion canister 2000 ml


Hose system


Universal bracket


Carrying strap


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