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Sidestream capnograph

Sidestream CO2 sensor is intended for continuous noninvasive monitoring of fraction of inspired CO2 (FiCO2) and end tidal CO(EtCO2), respiration rate (RR) and apnea.

Specially designed for implementation into medical devices for anesthesiology, intensive care, as well as patient monitors.


 Anesthesiology and intensive care departments of professional medical facilities, transportation within professional medical facilities


  • Easy integration.
  • Maintenance-free.
  • Standard accessories.
  • No routine calibration.

Technical Specification

Operation principle Non-dispersive infrared spectrophotometry (NDIR)
Initialization time 10 s
Time of setting the operating mode 120 s (at ambient temperature 25°С)
Gas sampling rate accuracy 50-250 ml/min
±10 ml/min in absolute terms or ±10% in relative one (the biggest from the values)
CO2 concentration measurement range 0–20 vol.% (resolution 0.1)
0–150 mmHg (resolution 0.1)
±(0.2 vol.%+0.02·Kmeas) or
±(1.5 mmHg+0.02·Kmeas)
Measurements drift ±(0,2 vol.%+0.02·Kmeas) or
±(1.5 mmHg+0.02·Kmeas)
Response time ≈3 s
Rise time  0.2 s
Influence of gas impurities and vapors  ±(0.43vol.%+0.08·Kmeas)
Respiratory rate measurement range 3–160 bpm
Respiratory rate measurement accuracy ±2 bpm
Power Voltage: 5.0 V ± 5 %
Capacity 1.5 W, maximum 4 W during warming
Weight   0.5
Dimensions (without cable), width x height x depth 58х92х146 mm
Connector Lemo Redel / ODU
Interface  RS-232


Clinical application

  • Assessing of the spontaneous breathing adequacy. Using the capnography the level of spontaneous breathing during recovery after anesthesia can be
  • assessed;
  • Weaning from mechanical ventilation;
  • Controlling of breathing system hermetic seal. A gas leakage is always possible during anesthesia. The leakage can be detected by ЕtCO2 monitoring, which
  • value is gradually increasing due to hypoventilation;
  • Examination of circulatory arrest and resuscitation procedures effectiveness;
  • Capnometry is optimal method for monitoring of cardiopulmonary resuscitation (CPR) effectiveness;
  • Control during the trachea intubation;
  • Examination of ventilation-perfusion ratio mismatch;
  • Any cause that reduces the lungs perfusion and/or increases the respiratory dead space can lead to PEtCOdecreasing and ΔP(a-Et)CO2 increasing.
  • Monitoring of hypermetabolic conditions (malignant hyperthermia, thyroid crisis, sepsis, etc.).

1. ASA Standards for Basic Anesthetic Monitoring, Standards and Practice;
2. European Resuscitation Council Guidelines for Resuscitation;
3. American Heart Association (AHA) Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care;
4. Association of Anaesthetists of Great Britain and Ireland. Recommendations for standards of monitoring during anaesthesia and recovery.