Abstract

Info

Author(s):: LIU Ni1; HU Jieying1; ZHENG Zeguang1; ZHONG Lihong1; WANG Xinni1; CHEN Rongchang1; HE Feng2; LIU Wugen2; ZHOU Ping3; 1. National Clinical Research Center for Respiratory Disease/State Key Laboratory of Respiratory Disease/Guangzhou Institute of Respiratory Health/Department of Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China; 2. Altrust Precision Tooling Co., Ltd, Dongguan 523499, China; 3. Department of Biomedical Engineering, Ji’nan University, Guangzhou 510632, China

Keywords:: Keywords: chronic obstructive pulmonary disease; high-precision computer control servo motor; pulmonary function; testing and calibrating system

Abstract:: Abstract: Objective To satisfy the requirements of the testing and calibration for spirometer by designing and producing an intelligent spirometer testing and calibrating system for generating standard respiratory curves of human and automatically testing and calibrating the spirometer. Methods The system was developed based on piston cylinder driven by a computer control servo motor. Results The tests on the executions and performances of the developed system showed that the system could not only precisely produce 24 standard forced expiratory vital capacity curves and 26 peak expiratory flow waveform curves which were recommended by American Thoracic Society, but also provide the detailed data of the tested spirometer. Conclusion The proposed system is suitable for intellectually testing and analyzing the accuracy and frequency-speed response of the tested and calibrated spirometers. Moreover, the system is also useful for doctors to investigate the pulmonary function indicators which were provided by the spirometry.