Design and Implementation of a Portable Forced Oscillation Respiration Resistance Detector_Journal of Biomedical Engineering

Authors：

ZHOUChuiliu ¹ , WANWu ¹ , XIELiansheng ¹ ,  ZENGBixin ²

1. Medical Engineering Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China;
2. Department of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325000, China;

Corresponding author：

ZENGBixin, Email: z_bixin@163.com

Keywords：

respiration resistance; STM32; forced oscillation; asthma

DOI：

10.7507/1001-5515.20160153

Video：

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This paper proposes a forced oscillation respiration resistance detector which has the characteristics of portable and friendly interface, with remote transmission function. STM32 is used to produce single frequency or complex frequency oscillation signal. In the experiments, the signal was magnified by the power amplifier to drive speaker to generate oscillates airflow into the subject's oral cavity. The analog to digital coverter of STM32 was used to measure the signals obtained by the pressure sensor and the flow sensor, and then the operation parameters were to be displayed on the TFT-LCD touch screen, and could also be transferred to the master computer. Simulated lung and volunteerism were used to verify the reliability of the detector. The test results showed that the system was reliable, and it achieved the significance in respiratory impedance detecting.

Citation： ZHOU Chuiliu, WAN Wu, XIE Liansheng, ZENG Bixin. Design and Implementation of a Portable Forced Oscillation Respiration Resistance Detector. Journal of Biomedical Engineering, 2016, 33(5): 951-957. doi: 10.7507/1001-5515.20160153 Copy

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1. 朱蕾.临床肺功能[M].2版.北京:人民卫生出版社, 2014.
2. 王毅.《慢性阻塞性肺疾病诊治指南》的临床意义[J].中国校医, 2005, 19(2):201-202.
3. BUSSE W W, MORGAN W J, TAGGART V, et al. Asthma outcomes workshop:overview[J]. J Allergy Clin Immun, 2012, 129(3):1-8.
4. FITCH K D. An overview of asthma and airway hyper-responsiveness in Olympic athletes[J]. Brit J Sport Med, 2012, 46(6):413-416.
5. KACZKA D W, BARNAS G M, SUKI B, et al. Assessment of time-domain analyses for estimation of low-frequency respiratory mechanical properties and impedance spectra[J]. Ann Biomed Eng, 1995, 23(2):135-151.
6. HOROWITZ J G, SIEGEL S D, PRIMIANO F P Jr., et al. Computation of respiratory impedance from forced sinusoidal oscillations during breathing[J]. Computers and Biomedical Research, 1983, 16(6):499-521.
7. 奥本海姆, 威尔斯基, 纳瓦卜.信号与系统[M].2版.刘树棠, 译.北京:科学出版社, 2010.
8. HOLMAN J P. Heat transfer:instructor's solutions manual to accompany[M]. New York:McGraw-Hill, 2002.

Journal of Biomedical Engineering

Design and Implementation of a Portable Forced Oscillation Respiration Resistance Detector

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