Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Non-invasive Transcutaneous pCO2 Gas Monitoring System for Arterial Blood Gas Analysis

  • Bang, Hyang-Yi (Center for Functional Devices Fusion Platform, Kyungpook National University) ;
  • Kang, Byoung-Ho (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Eum, Nyeon-Sik (U-Biomed Inc., Business Incubation Center, Kyungpook National University) ;
  • Kang, Shin-Won (School of Electronics Engineering, College of IT Engineering, Kyungpook National University)
  • Received : 2011.09.08
  • Accepted : 2011.09.20
  • Published : 2011.09.30
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Abstract

Monitoring the carbon dioxide concentration in arterial blood is vital for the evaluation and prevention of pulmonary disease. Yet, domestic pure arterial blood carbon dioxide sensor technologies are not being developed, instead all sensors are imported. In this paper, we develop a real time monitoring system for arterial blood partial pressure of carbon dioxide($pCO_2$) gas from the wrist by using a carbon micro-heater. The micro-heater was fabricated with a thickness of 0.3 ${\mu}m$ in order to collect the carbon dioxide under the skin. The micro-heater has been designed to perform temperature compensation in order to prevent damage to the skin. Two clinical trials of the system were undertaken. As a result, we demonstrated that a portable, transcutaneous carbon dioxide analysis($TcpCO_2$) device produced domestically is possible. In addition, this system reduced the analysis time significantly. Carbon films could reduce the unit price of these sensors by replacing the gold film used in foreign models. Also, we developed a real time monitoring system which can be used with optical biosensors for medical diagnostics as well as gas sensors for environmental monitoring.

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References

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