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作者在提出内扰动波的基础上,自行设计了一种新型微分流速计,及改制的多导气道闭合图仪,备有容量-瞬时流速-平均流速-时间(V-t) 指标经个体 (7人,321人次)及群体(370例临床实验)内扰动波拐点与肺位关系的研究,发现呼气末期内扰动波拐点有三种容量轴规律:1.与流速相关:若流速固定于0.3～0.5升/秒,则全体受检对象平均流速大于及小于0.3升/秒、瞬时速流至～0.3升/秒处,显示明确拐点,以此判断闭合点气量/肺活量％;2.与年龄相关;3.与慢阻肺相关。实验证明:正常组与慢支、肺气肿、肺心病各组间,以及相邻各组间,皆有非常显著差异。
On the basis of the proposed internal perturbation wave, a new differential velocity meter and a modified multi-channel airway closure map instrument were designed by ourselves. The capacity-instantaneous flow-average velocity-time (Vt) (321 subjects) and group (370 clinical trials). It is found that there are three kinds of volume axis regularities for the inflection point of perturbation wave in the end of expiration: (1) Correlation with the flow rate: If the flow rate is fixed at 0.3 ~ 0.5 liters / second, the average flow rate of all subjects was greater than and less than 0.3 liters / second, the instantaneous rate of flow to ~ 0.3 liters / sec, showing a clear inflection point, in order to determine the volume of closed point / lung vital capacity; ; 3 and chronic obstructive pulmonary disease. Experiments show that: normal group and chronic bronchitis, emphysema, pulmonary heart disease among the various groups, as well as between adjacent groups, Jieyou very significant differences.