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SOMNOcheck micro, WM 94530

SOMNOcheck micro

For Simplified Sleep Screening at Home

SOMNOcheck micro provides the simplest diagnostics for Sleep Disordered Breathing (SDB) with use of the signals pulse oximetry and (optionally) air flow. The innovative Pulse Wave Analysis (PWA)1 differentiates between obstructive and central apnea and indicates the extent of sleep fragmentation. Results are displayed as soon as the recording ends. Even without a PC you can read the immediate risk assessment in the Red-Amber-Green display, followed by detailed results of the analysis.

SOMNOcheck micro is worn like a wristwatch. The screening device is so comfortable that it doesn‘t disturb the patient‘s sleep and so easy to use that the patient can manage it on his own. The software transfers the data via a USB interface to the PC, visualizes the recorded signals and the detected results. A clearly structured report is generated to document findings.

SOMNOcheck micro simplifies the way to obtain preliminary findings on a patient‘s sleep disorder so that the next diagnostic steps can be taken and, if necessary, referral to a sleep lab or sleep specialist can be made. With the increasing awareness of sleep‘s importance to general health, practitioners in varied medical fields are becoming interested in the potential uses of screening for Sleep-Disordered Breathing in internal medicine, cardiology, rehabilitation centers, neurological care units, dentistry and occupational medicine and anesthesiology.


Noteworthy features of SOMNOcheck micro:

  • First-time recognition of central events by a small diagnostic
  • device on the wrist
  • Coherent traffic light function for quick interpretation
  • Simple and fast identification of patients with increased
  • risk of SDB
  • Conclusions about sleep disorders based on arousals and
  • autonomous RERAs
  • Reliability through automatic qualitative self-evaluation
  • of results
  • Single-key operation: simple access to detailed results
  • Functional check with online display of pulse and
  • respiration
  • Valid analysis: Sensitivity 96.2 %, Specificity 91.7 %3)
  • Fast and simple documentation per report sheet
  • USB interface for data download
  • Software to visualize data
  • Personalized, automated report to print, store, e-mail
  • No maintenance, thanks to self-calibration

1)- Allen, Photoplethysmography and its application in clinical physiological measurement, Physiol Meas 28:R1-R39, 2007
- Haba-Rubio et al, Obstructive sleep apnea syndrome. Effect of respiratory events and arousal on pulse wave amplitude measured by photoplethysmographie in NREM sleep, Sleep Breath, 9: 73-81, 2005
- Sommermeyer D, Grote L, Walter T, Schwaibold M, Schöller B, Hedner J, Automatische Apnoedifferenzierung anhand der photoplethysmographisch gemessenen Pulswelle, Abstract, DGSM Düsseldorf, 2007
- Lévy P, Pépin J.-L., Sleep fragmentation: clinical usefulness of autonomic markers, Sleep Medicine 4 (2003) 489–491
2) Hypopnea recognition as per American Academy of Sleep Medicine scoring criteria B (airflow reduction > 50% or lesser airflow with associated > 3% oxygen desaturation or arousal)
3) Sommermeyer D, Grote L, Walter T, Schwaibold M, Schöller B, Grote L, Hedner J, Bolz, A: Detection of sleep disorders by a modified Matching Pursuit algorithm, Congress proceedings 11th World Congress on Medical Physics and Biomedical Engineering, Munich, 2009