CO₂ Sensors

cap-ONE is Nihon Kohden's unique mainstream CO₂ sensor for both intubated and non-intubated patients for safer respiratory management. The ultra compact and light weight sensor and unique adapter provide accurate measurements and reduce the burden on the patients. We have two measuring methods: the Quantitative method and the Semi-quantitative method.
 

Because the mist generated in the breathing circuit by a nebulizer creates a very harsh environment for a CO₂ sensor which uses infrared light, it was considered impossible to monitor CO₂ by a capnometer when a nebulizer is used with a ventilator. However, we have overcome these issues and developed a TG-980P CO₂ sensor that enables stable measurement over a long period of time, even when using a nebulizer.

The upper waveforms are the CO₂ partial pressure in exhaled air, and the lower waveform shows the signal light and reference light detected by our CO₂ sensor, TG-980P. The exhaled CO₂ partial pressure is calculated from the signal and reference light outputs.    When the nebulizer is turned on, the waveforms of both the signal and reference light outputs are blurred due to the mist of the nebulizer. However, with TG-980P which is using Quantitative method, the CO₂ measurement is not affected since both are equally affected so an accurate partial pressure of CO₂ can be determined.

Using TG-980P CO₂ sensor together with cap-ONE mask, the sensor can accurately catch oral and nasal exhaled CO₂ and reliably detect respiratory variation. In addition, cap-ONE mask is easily used for pediatric patients who are receiving supplemental oxygen. With the unique design, the sensor catches the exhaled gas from the nose and mouth without interference of oxygen supply.

cap-ONE and NPPV mask optimizes the ability to monitor and detect changes in the patient’s condition, improving patient care and outcomes.