The SOMNOscreen™ plus is the smallest PSG system with up to 33 channels. It offers a maximum of flexibility in diagnostics. Whether according to the standard of Rechtschaffen & Kales, the new AASM standard or configurations for specific studies, it is always you who decides what you would like to measure and with which configuration you would like to start. It is upgradeable at any time and offers the possibility of screenings, ambulatory and stationary PSG’s, as well as a complete EEG 10-20 diagnostic – all without any handicap for the patient.

Thanks to the built-in data transmitter, the SOMNOscreen™ plus always works wirelessly – so your patient is free to move. Upon

request, you can use the fully synchronized digital video wireless option for the stationary area, therefore giving you complete mobility within the boundaries of the room or department. The built-in data transmitter allows an easy and secure signal check on the patients bedside.

The data will be stored on a robust high-speed compact flash card with up to 2 GB capacity for 100 hours PSG recording.


SOMNOscreen RC

  • PT
    Miniaturised Pneumotachograph for CPAP Flow Recordings or for calibrated volume determination


  • Long-Term ECG Measurement
    1-Channel or 3-Channel ECG Recording with an active three- or four-contact sensor for optimised signals


  • Continuous Long-Term Blood Pressure Recording on


  • Activity
    Estimating the sleep efficiency through activity analysis

Technical Data – SOMNOscreen™ plus

8 – 33 Channels Modular Upgradeable

  • 15 Headbox:
    10 EEG/EOG Referential + REF, 2 EMG Referential, 1 ECG Differential, Impedance
  • 10 External:
    Abdominal Effort, Snoring (Microphone), naso/oral Flow (Thermistor), Motor Activity, AUX, naso/oral Flow (Nasal Cannula), PLM L, PLM R, Snoring (Nasal Cannula), CPAP/BiPAP Pressure
  • 8 Internal:
    SpO2, Pulse Rate, Pulse Waveform, Position, Movement, Ambient Light, Marker Button, Thoracic Effort


External Sensors

  • Thermistor for nasal oral Flow
  • Abdominal Effort
  • Activity Sensor (3 axis) for actigraphy or PLM
  • Active Sensors for EMG/ECG
  • Microphone for Snore Detection
  • EDA Sensor (Electro Dermal Activity)
  • Temperature Sensor (rectal)
  • Pressure Sensor: Naso/Oral Flow (Cannula)
    • Snore (Cannula)
    • CPAP-Pressure (0 – 24 cm H2O)
    • CPAP-Flow
    • CPAP-Snore
    • Oesophageal Pressure (-100 to +100 cm H2O)Datenerfassung

Data Processing

  • Active Filtering
  • 16 Bit ADC
  • Sampling Rates adjustable form 4/s to 512/s (optional 2048/s)
  • Small file size through compressed data storage

Data Storage

  • High-speed Compact Flash Card (up to 2 GB capacity)


  • Li Ion Battery (rechargeable) up to 36-hour Recordings

Size & Weight

  • 140 x 70 x 28 mm, 220 gr (incl. Battery)

Interactive Keyboard and Display

  • Signal Check on Display (blue backlit LCD display)
  • Programmable Start and End Times
  • Menu Controlled Display

Software – DOMINO

  • Efficient Analysis and Scoring Software


  • Wireless Data Transfer with a built-in data transmitter (in-room solution); possibility for a fast and secure signal check on the patients bedside using a tablet PC
  • Wireless Online Data Transfer using an external data transmitter (up to 100 m), LAN or USB
  • Video:
    • Synchronised Video in DVD Quality, 25 frames/sec, latest Data Compression System
    • Audio (20 – 12.000 HZ)
    • Black and White recording for IR or Colour recording during daylight
    • Fully synchronised with raw data
    • Playback at different frame speeds (0,1 – 100 times)
    • Digital Zoom function for detailed analysis
    • Easy to edit, cut and archive
    • Store short sequences on CD or DVD

Cardio Respiratory Screening

Product Brochure

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Analysis Software DOMINO

As the owner of a SOMNOscreen™ System, you will appreciate the Automatic Analysis and Reporting of the DOMINO Software with its ease of use, speed and flexibility.


The DOMINO Control Panel (Fig. 1) is the key to the Software. From here, all sections of the Software can be accessed, (from left to right: Measurement Initialisation, Data Transfer, Record Real-time Data and Analyse Studies, Montage-Editor, Global Settings, the optional Patient Database and Scheduler) with a single mouse click.

Immediately after Data Transfer and within 2-3 Minutes the recording is automatically analysed. Naturally, it is also possible at this time to manually edit and classify the study. The detected events are marked with colour-coded boxes in the Raw Data. Double clicking a point in the upper window (Fig. 2) takes you to the required time period in the Raw Data Window.

Interesting Events such as Min. SpO2, Max. SpO2, Max PTT increases, Max. PTT drops, Max HR increases, Max HR acceleration, Longest Apnoea, etc. are also automatically classified and displayed when the measurement is first opened.


  1. Index per hour,
  2. Time Line
  3. Analyses Curves
  4. Raw Data Curves
  5. Time Base Analyses
  6. Time Base Raw Data
  7. Sleep Stages
  8. Show / Compare Sleep Profile
  9. Events
  10. Video Screen

The system provides a comfortable, quick and easy means of editing the recordings. All events are colour coded and displayed in the raw data


Automatic analysis of all standard signals including

Apnoea/Hypopnoea calculation according to type and in correlation to Desaturations Brady/Tachycardia and Micro Arousals

  • Snoring
  • PLM Detection
  • Micro arousal detection according to the ASDA Criteria
  • Brady/Tachycardia and Arrhythmia analysis
  • O2 Desaturations
  • Body Position
  • PTT Pulse Transit Time
  • Calculation of the Average Frequency Value (AFV)
  • the Alpha + Beta and Delta Frequency Bands from the EEG
  • Sleep Staging Analysis with Sleep Profile
  • Display of the Sleep Staging Reliability
  • REM Detection and REM Density

New information is being developed including
– Sleep Fragmentation based on Micro Arousal and PTT Arousal Analysis
– Flow Limitation – Obstruction Level Analysis
– Systolic Blood Pressure: Display of the Systolic
Blood Pressure Curve and automatic recognition and correlation of fluctuative
pressure changes
– Heart Rate Variability
– FFT Module for the sequential analysis of the raw data

Software Features

  • Re-Analysing: The data can be re-analysed at every time
  • Archiving: The data can be archived to CD or DVDReport
  • Generator: It is possible to design different reports for different types of studies
  • Form Letters: To make reporting and documentation easier
  • Patient Data Management (Option):
    A powerful Patient Database is available for the efficient organisation of all patient data
  • The Sleep Profile, Graphic results summary and the complete numerical results list are stored
  • The database can produce Trend Reports comparing different tests done on the same patient. The data is stored in the database even after the case has been archived and deleted from the computer.
  • The database is network compatible with a permanent patient list. A search engine is provided to help locate Patient data
  • Calendar with Scheduler
  • Open Architecture: All results and reports can be exported to MS Excel and SPSS. Raw Data can be exported to EDF+ and ASCII format. EDF+ files can be imorted into the software. It is also possible to integrate the data from the database into your existing Practice Management Software.

Product Catalogue

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Catalogue Accessories

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