P/N:412340-002 GE Mainstream CAPNOSTAT CO2 Sensor

Carbon dioxide (CO2) is the most abundant gas produced by the human body. CO2 is the main driving force for breathing and the main reason for mechanical ventilation of patients. Monitoring carbon dioxide levels (capnograPHiliphhilipy) during breathing is non-invasive, easy to use, relatively inexpensive, and has been extensively studied.

Carbon dioxide monitoring

• Non-invasive and easy to use
• Reliable monitoring-mainstream and sidestream
• Help improve patient's ventilation quality and efficiency

Medical equipment is very dependent on the sensor industry, because the biomass in the human body and the drugs and materials used for treatment require sensor detection and online monitoring. The article briefly introduces the application of medical oxygen sensors, medical carbon dioxide sensors and other gas sensors in various medical equipment.

Medical carbon dioxide sensor 　　

At present, in the field of medical sensors, there are many applications for medical carbon dioxide sensors. The more important applications include ventilators, anesthetics and infant incubators, which are used to monitor the vital signs of the human body. At present, the main technical route of mainstream carbon dioxide sensors is mainly the principle of non-dispersive infrared (NDIR).　　

The second important application of medical carbon dioxide sensors is to measure Helicobacter pylori (Hp). Hp can cause a variety of gastric diseases, including superficial gastritis, gastric ulcer, duodenal ulcer, and non-ulcer dyspepsia. In the end, gastric cancer is the most serious. The easiest way to detect Hp clinically is to take carbon-13-labeled or carbon-14-labeled urea. After taking it for 10 to 15 minutes, the highly active urease produced by Hp in the patient's body will decompose urea into ammonia (NH3), 13CO2 or 14CO2, and a small amount of 13CO2 or 14CO2 is excreted through the blood through exhalation. By analyzing the concentration of 13CO2 or 14CO2 in the breath by the carbon dioxide sensor, it can be judged whether the patient has Hp infection.　　

The third important application of the medical carbon dioxide sensor is to measure the concentration of the human body at the end of the expiration. When the human body is not holding its breath, the concentration of carbon dioxide at the end of the expiration is about 5.5% vol. The time point corresponding to 5.5% vol at the end of expiration is the time reference for many medical measurements, so it can accurately and quickly respond to the end of expiration, which is a very valuable application of carbon dioxide sensors.