CWE respiratory gas monitoring for small animals

The monitoring of expired gas is an important indicator of the physiological health of experimental animals. CWE offers a range of gas analysers for different respiratory physiology applications.

The CapStar-100 end-tidal CO₂ analyser is suitable for the routine monitoring of CO₂, providing continuous measurement of expired CO₂ over the range of 0–10%. Its rapid response time, small sample flow requirements and long-term stability make it suitable for respiratory gas measurement of rodents and larger animals.

The microCapStar CO₂ analyser is specifically designed for very small animals, providing end-tidal or continuous measurement of expired CO₂ in animals as small as mice. It features low sample flow requirements, rapid response time and long-term stability. Respiratory rate (RR) is computed using the excursions of the CO₂ waveform. The CO₂ and RR measurements, as well as a trend plot of the end-tidal values, are displayed on the LCD screen.

The GEMINI Respiratory Monitor features both CO₂ and O₂ measurement, as well as RR measurement. Measuring breath-by-breath O₂ and CO₂ concentration, it has long-term stability, linear output voltage, adjustable CO₂ and respiratory rate alarms. It is also suitable for rats and larger animals.

The products are suitable for hypoxia and control-of-breathing studies. They can be used in conjunction with a CWE ventilator.