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Proceedings 2017, 1(4), 356;

Development of Catheter Flow Sensor for Breathing Measurements at Different Levels of Tracheobronchial Airway

Hiroshima City University, 3-4-1, Ozuka-Higashi, Asa-Minami-Ku, Hiroshima 731-3194, Japan
Nagoya University, 1-1-20, Daiko-Minami, Higashi-ku, Nagoya 464-8673, Japan
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
Author to whom correspondence should be addressed.
Published: 21 August 2017
(This article belongs to the Proceedings of Eurosensors 2017)
PDF [3291 KB, uploaded 21 August 2017]


We attempted to develop different sized catheter flow sensors for evaluating breathing characteristics at different levels of the tracheobronchial airway in a lung system. Two catheter flow sensors with 1.8 and 3.5 mm outer diameters were designed for measuring breathing characteristics in bronchus- and bronchiole- regions in the lung system, respectively. They were fabricated by using photolithography and heat shrinkable tube packaging processes. We experimentally investigated the fundamental sensor characteristic and found that the sensor output depended on the mean flow velocity. The developed catheter flow sensors also successfully detected the oscillating airflow produced by an artificial ventilator.
Keywords: COPD; catheter flow sensor; breathing measurement COPD; catheter flow sensor; breathing measurement
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Fujinori, T.; Hasegawa, Y.; Matsushima, M.; Kawabe, T.; Shikida, M. Development of Catheter Flow Sensor for Breathing Measurements at Different Levels of Tracheobronchial Airway. Proceedings 2017, 1, 356.

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