Innovative Technologies

What is cap-ONE?

Optional capnography for both intubated and non-intubated patients with cap-ONE cap-ONE logo

cap-ONE is Nihon Kohden's unique mainstream CO2 sensor for both intubated and non-intubated patients. Ultra compact sensor and unique adapter provides accurate measurements and reduces the burden on the patients.
Intubated cap-ONE  Non-intubated cap-ONE  cap-ONE mask

cap-ONE overcomes the disadvantages and maintains all the advantages of mainstream sensor for the optimal capnography.
The table showing cap-ONE's advantages

Uniqueness of cap-ONE

A new class ultra compact and highly durable sensor
cap-ONE employs advanced miniaturization of infrared absorption spectroscopy system and its sensor has achieved an extremely light and small size with a weight of 4 g with the dead space of 0.5 mL. Also, by using anti-fogging membrane, neither motor nor heater is required.
cap-ONE is highly durable withstands a drop test of 100 falls from a height of 2 m, a flex test of 5,000 times with a 400 g load, and a water test with a 1 m for 30 minutes (IPX7).

Innovative features - Anti-fogging membrane
cap-ONE uses the original transparent film with anti-fogging membrane. It forms a smooth layer of water which allows stable transmission of infrared light without irregular reflection. This technology eliminates the need of heaters, reduces power consumption and weight of its sensor.

Without anti-fogging membrane With anti-fogging membrane inside the airway
The illustration of usual membrane The illustration of anti-fogging membrane
The photo of usual membrane The photo of anti-fogging membrane

Following diagram shows both signals and reference are affected by the mist of the nebulizer but CO2 measurement is not affected.
The diagram showing both signals and reference are affected by the mist

Two measuring methods

Quantitative method (TG-980P):
Quantitative method cancels the affect of the factors that cause inaccurate measurement such as deterioration of light source, dirty windows of the sensor, and water drops in the airway adaptor. It can provide reliable measurement even under high humidity conditions.
The diagram of quantitative method


Semi-quantitative method (TG-920P):
Semi-quantitative method assumes inspired CO2 as 0 mmHg so it does not require user calibration. It requires fewer parts which lessen the possibility of malfunction.
The diagram of semi-quantitative method

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