Original Article
Development of an internet-of-things based portable spirometer and the validation of its accuracy
Lei Zhou, Yan Jiang, Chunling Du, Guoxiang Lai, Dawei Yang, Lingling Chen, Huirong Zhang, Yicong Huang, Wen Wen, Wei Liu, Yuanlin Song, Chunxue Bai
Published 2019-01-20
Cite as Int J Respir, 2019, 39(2): 113-118. DOI: 10.3760/cma.j.issn.1673-436X.2019.02.007
Abstract
ObjectiveTo develop an IOT based handheld portable spirometer and evaluate its accuracy for the purpose of the early diagnosis, real-time monitoring and management of chronic obstructive pulmonary disease (COPD).
MethodsA pressure differential flow sensor and an Android operating system based APP were employed in this instrument.Compared the expiration waveform with the ATS standard test and Jaeger spirometer.Then enrolled 980 healthy subjects to evaluate the accuracy of the portable spirometer taking the Jaeger spirometer as the contrast.The test order of the instruments was decided randomly.
ResultsThe waveforms of portable spirometer were highly consistent with the waveforms of ATS and Jaeger spirometer.The test data of the 980 healthy subjects showed high correlation between the experimental and contrast instruments.The r value of forced vital capacity (FVC), peak expiratory flow (PEF), forced expiratory volume in one second (FEV1), FEV1/FVC were 0.984, 0.985, 0.982 and 0.941 by Pearson correlation analysis, respectively.Consistency boundary map showed more than 95% subjects′ FVC, PEF, FEV1 results located in the consistency boundary.
ConclusionsThe results of this study show that the accuracy of this IOT bases portable spirometer is high enough to meet the demand for pulmonary function test of various medical institutions, and is especially suitable for the COPD patients screening and long term remote management.
Key words:
Pulmonary disease, chronic obstructive; Internet of things; Spirometer; Flow sensor; Pressure differential
Contributor Information
Lei Zhou
Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Qingpu Branch, Fudan University, Shanghai 201700, China
Yan Jiang
Department of Respiratory Medicine, Xiamen Haicang Hospital, Xiamen 361026, China
Chunling Du
Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Qingpu Branch, Fudan University, Shanghai 201700, China
Guoxiang Lai
Department of Respiratory Medicine, Fuzhou General Hospital of Nanjing Military Command, Fuzhou 350001, China
Dawei Yang
Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
Lingling Chen
Department of Respiratory Medicine, Xiamen Haicang Hospital, Xiamen 361026, China
Huirong Zhang
Xeek (Xiamen) Medical Equipment Co.Ltd., Xiamen 361026, China
Yicong Huang
Xeek (Xiamen) Medical Equipment Co.Ltd., Xiamen 361026, China
Wen Wen
Department of Respiratory Medicine, Fuzhou General Hospital of Nanjing Military Command, Fuzhou 350001, China
Wei Liu
Department of Respiratory Medicine, Fuzhou General Hospital of Nanjing Military Command, Fuzhou 350001, China
Yuanlin Song
Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Qingpu Branch, Fudan University, Shanghai 201700, China
Chunxue Bai
Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
