Experimental analysis of pendelluft flow generated by HFOV in a human airway model
Experimental analysis of pendelluft flow generated by HFOV in a human airway model
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DOI：
10.1088/0967-3334/27/8/001
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发表时间：
2006-08
影响因子：
3.2
通讯作者：
Won-Je Lee;M. Kawahashi;H. Hirahara
中科院分区：
文献类型：
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作者：
Won-Je Lee;M. Kawahashi;H. Hirahara
高频振荡通气（HFOV）是一种治疗肺部疾病的有效人工呼吸技术。在高视场中，摆体是影响气体输运和混合机制的重要因素之一。采用时间分辨微粒子图像测速法对具有不同分支体积比的单分叉支气管模型中的钟摆流动进行了实验分析，得到了10-15 Hz频率范围内支气管模型中振荡流动的瞬时速度分布。基于不同频率下随时间变化的振荡速度分布，讨论了摆振现象。
HFOV (High frequency oscillatory ventilation) is an effective artificial respiration technique for the treatment of pulmonary disease patients. In HFOV, the pendelluft is one of the important factors in gas transport and mixing mechanisms. Experimental analysis of the pendelluft flow generated in a bronchial tube model of single bifurcation with different volume ratios of daughter branches has been carried out by using time-resolved micro-particle image velocimetry obtaining instantaneous velocity distributions of oscillatory flows in the bronchial tube model at a frequency range of 10–15 Hz. Based on the oscillatory velocity profiles changing with time for different frequencies, the pendelluft phenomena have been discussed.