350 高頻度振動換気における肺末梢部分岐気流の解析(T06-5 マイクロ・ナノ熱流体システム(5) 光・波動・振動,大会テーマセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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HFOV (High Frequency Oscillatory Ventilation) is known as an effective method of artificial ventilations for patients with respiratory disease. It has been explained that the promotion of gas transport and exchange in condition of HFOV were brought by Taylor dispersion, pendelluft, streaming and so on. However, the practical phenomena of each effect have not been clarified in detail. Especially the pendelluft is a peculiar motion of gas in the airways appearing in the case of HFOV. The pendelluft generation at bronchial bifurcation has been predicted and theoretically estimated by considering, but the experimental analysis of pendelluft has not been carried out enough because of experimental difficulties. In this study, experimental investigation of oscillatory airflows with HFOV in a multi-bifurcated micro-channel as a respiratory bronchiole model in human lungs has been carried out by micro-PIV measurement. The generation of multiple pendelluft motion in a multi-bifurcated micro channel has been confirmed in the experimental investigation.
社団法人日本機械学会の論文
2008-08-02