Innovative Technologies

What is cap-ONE?

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


cap-ONE is Nihon Kohden's unique mainstream CO2 sensor for both intubated and non-intubated patients. The ultra-compact sensor and unique adapter provide accurate measurements and reduces the burden on the patients.
TG98_intu.png  TG92_non.png  mask.png

cap-ONE overcomes the disadvantages and maintains all the advantages of mainstream sensor for the optimal capnography.

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
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usual-membrane_photo.png anti-fogging_membrane_photo.png

The following diagram shows that both signals and reference are affected by the mist of the nebulizer, but the CO2 measurement is not affected..
nebulizer on/off

Two measuring methods

Quantitative method (TG-980P):
Quantitative method cancels the effect 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.

quantitativ 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.
semi-quantitative method


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