| 平静呼吸状态下肺通气功能测试 |
| |
| 引用本文： | 曾碧新,陈式苏,颜静. 平静呼吸状态下肺通气功能测试[J]. 温州医学院学报, 2001, 31(4): 223-224 |
| |
| 作者姓名： | 曾碧新 陈式苏 颜静 |
| |
| 作者单位： | 1. 温州医学院物理学教研室,
2. 温州医学院第二附属医院肺功能室, |
| |
| 摘 要： | 目的：介绍用于平静呼吸时各项呼吸指标测试系统的设计。方法：系统太要由Fleisch流量换能器、压力换能器、放大器、A/D转换器和486微机组成，系统软件是用汇编语言对流量信号进行采样，用C语言计算各项指标[呼吸频率（RR）、潮气量（TV）、潮气峰值流量（PTEF）、吸气时间/总呼吸时间（TiTtot到达呼气峰流量时间/呼气时间（TPF）、到达静态呼气峰流量时的呼出气量/潮气量（VPF）、呼出75%潮气量时的呼气流量（PE25）、平静呼吸中期流量/静态吸气中期流量（MEF/MIF），静态流量-容量环]，结果：经测试，同一正常男子测试TV的相对误差为1%；Fleisch型流量换能器，在整个量程内（0-8L），非线性误差不大于2%。结论：肺量计与浮筒式肺量计比较具有阻力小，精度高的优点，临床适用范围大，易于临床推广使用。
|
| 关 键 词： | 静态呼吸 力学指标 流量容量环 肺功能 |
| 文章编号： | 1000-2138(2001)04-0223-02 |
| 修稿时间： | 1999-11-12 |
The Design of System for Measuring the Tidal Breathing Indices |
| |
| ZENG Bi xin,CHEN Shi su,YAN Jing. The Design of System for Measuring the Tidal Breathing Indices[J]. Journal of Wenzhou Medical College, 2001, 31(4): 223-224 |
| |
| Authors: | ZENG Bi xin CHEN Shi su YAN Jing |
| |
| Affiliation: | ZENG Bi xin,CHEN Shi su,YAN Jing. Department of physics,Wenzhou Medical college,Wenzhou 325027 |
| |
| Abstract: | Objective:To report the design of a new system that measures the lung respiratory function under tidal breathing.Methods:The system consists of three parts: the measurement of the respiratory flow, the measurement of the pressure of lung and the computer system to sample data and calculate indices.Results:This system can measure indices: RR,TV,PTEF,TiTtot,TPF,VPF,PE25,MEF/MIF,Crs,Trs,Rrs and tidal breathing flow volume loop.Conclusion:This system had the advantages of small resistance, high precision and easy operation compared with roth spirometer. The system non linear error is less than 2% in measurement. Its results are independent of the cooperation of patients and therefore are more reliable. |
| |
| Keywords: | respiration indices tidal breathing flow volume loop |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
