ATMOS S 201 Thorax Digital Chest Drainage: Data, Mobility and Selection Notes

What the ATMOS S 201 Thorax does

The S 201 Thorax applies a controlled, low vacuum to a chest drain and measures what comes back. Controlled, rapid vacuum build-up and patient-side vacuum measurement with automatic hose rinsing help avoid the siphon effect, in which fluid in the tubing alters the vacuum actually acting at the patient.

The manufacturer describes it for cardiac and thoracic surgery patients, including those with large air leaks or large amounts of fluid. Clinical decisions always remain with the treating team; the unit's role is to provide measured data and a stable, adjustable vacuum.

For a hospital that already uses water-seal bottles, the practical question is where a digital unit adds most value: usually in patients with high or fluctuating air leaks, where a trend graph shows whether a leak is increasing or settling, and in wards that run early mobilisation pathways, where a light battery device keeps patients connected while walking.

Published specifications

The published data are a suction capacity of 18 ± 2 l/min, a vacuum control range of −5 to −100 mbar, battery operation of up to 12 h, a maximum noise level of 31 dB(A) and a weight of 3.0 kg (3.7 kg with canister). The canister is a four-chamber unit of 2000 ml.

The low vacuum range is typical of drainage, which is very different from airway or surgical suction where vacuum reaches −90 kPa or more. For the distinction, read our overview of types of medical suction.

• Vacuum control range −5 to −100 mbar
• Battery operation up to 12 h, lithium-ion battery
• Four-chamber 2000 ml secretion canister
• Noise level max. 31 dB(A)

Real-time data and reports

Therapy data are shown in real time and as a graph over the whole therapy. This allows the team to see trends in air leak and fluid output rather than a single spot reading at each round, and so supports clinical decisions. Reports can be exported as PDF and Excel files via a USB flash drive.

When comparing with traditional water-seal systems, ask how data are recorded and how they reach the patient record. Our article on water seal vs digital chest drainage sets out the differences in monitoring, mobility and workflow.

Data are only useful if staff trust them. Ask the supplier how the leak and fluid values are measured, how often the display updates and what alarms are raised for blockage, full canister or low battery, then check these on a demonstration unit with your own nursing team.

Mobility, ward use and nursing workflow

At 3.0 kg and with a shoulder strap, the unit is designed to be carried by the patient during mobilisation. Battery operation for up to 12 h supports walking and transport without disconnecting from the drain, which is useful in enhanced-recovery pathways.

Nursing staff need training on set-up, alarms, canister change and the meaning of the displayed curves; see our overview of thoracic drainage nursing care. For the wider system choice, start with the thoracic drainage system guide.

Infection control also deserves a line in your procedure: the device body is wiped with an approved disinfectant between patients, the canister is a single-patient consumable according to local protocol, and the unit should never be placed where fluid can run back towards it.

Procurement checklist

Ask about consumables: canister type and availability, tubing sets and how many are included, battery life over time and replacement. Request the cleaning and disinfection procedure for the device body and the service plan in the UAE. See the ATMOS S 201 Thorax product page for a product overview.

Confirm registration status of the device and consumables with the relevant UAE authority and any facility conditions. Beckfinity supplies ATMOS equipment and can arrange maintenance planning; contact our specialists for a quote or consultation.