Experimental investigation of oscillatory air flow in a bronchial tube model with HFOV mode
Experimental investigation of oscillatory air flow in a bronchial tube model with HFOV mode
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DOI：
10.1007/bf03181567
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发表时间：
2006
影响因子：
1.7
通讯作者：
Won-Je Lee;M. Kawahashi;H. Hirahara
中科院分区：
文献类型：
--
作者：
Won-Je Lee;M. Kawahashi;H. Hirahara
人工呼吸的机械通气已被开发出来，以改善显示呼吸障碍的患者的医疗。在各种通气方式中，高频振荡通气（High Frequency Oscillatory Ventilation，HFOV）是对肺部疾病患者，特别是婴幼儿最有效的医疗护理技术之一。HFOV是一种通气技术，与正常呼吸频率相比，呼吸频率较高。一些成功的研究集中在使用HFOV的治疗效果上，然而，在HFOV的医学治疗下，支气管内气体交换的机制尚未阐明。本文采用微粒子图像测速技术（microPIV）对高视场模式下单分叉支气管微通道内的振荡流动进行了实验研究。研究了相位平均速度剖面随HFOV驱动频率的变化。
Mechanical ventilations for artificial respiration have been developed to improve the medical treatment of the patients showing respiratory disorder. In various types of ventilation, High Frequency Oscillatory Ventilation (HFOV) is one of the most effective techniques of medical care for pulmonary disease patients, especially, infantsor premature infants. HFOV is a ventilation technique with high breathing rate in comparison with the normal breathing rate. Some successful studies have focused on the effect of treatment using HFOV However, the mechanism of gas exchange in bronchial tube under the medical treatment by HFOV has not been clarified. In this study, the oscillatory flow in a micro-channel model of bronchial with single bifurcation in HFOV mode has been investigated experimentally with micro Particle Image Velocimetry (micro PIV) technique. The phase averaged velocity profiles changing with the driving frequency of HFOV have been inves tigated.