Real-time updates of metrical data can not generally be realized in the commonly used methods for calculating the pulse wave of blood oxygen saturation. Based on the hardware platform of pulse wave signal from NJL5501R, and high linear correlation of the red laser and infrared light collected in pulse wave signal measurement, an approach to determine the value of the blood oxygen saturation is proposed in the present paper by establishing the linear regression model of the red laser and infrared light. The effect of the sampling number of pulse wave signal in calculation on the characteristic parameters of pulse wave is also analyzed. The experimental results showed that the approach could guarantee the measuring accuracy and realize the fast updates of blood oxygen saturation data. This paper provides an effective method for real-time and accurate monitoring of pulse blood oxygen saturation in human body.
Citation：
ZHANGGenxuan, SHIBo, CAOYang. A new method for calculating pulse oxygen saturation. Journal of Biomedical Engineering, 2017, 34(1): 62-65. doi: 10.7507/1001-5515.201604032
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Copyright © the editorial department of Journal of Biomedical Engineering of West China Medical Publisher. All rights reserved
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- 1. John A C, Damianou D. The wavelength dependence of the photoplethysmogram and its implication to pulse oximetry//14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society．Paris: 1992: 1173-1181.
- 2. Webster J G. Design of pulse oximeters. British: Institute of Physics Publishing, 1997: 110-117.
- 3. 罗志昌, 张松, 杨益民. 脉搏波的工程分析与临床应用. 北京: 科学出版社, 2006: 165-179.
- 4. Reichelt S, Fiala J, Werber A, et al. Development of an implantable pulse oximeter. IEEE Trans Biomed Eng, 2008, 55(2 Pt 1): 581-588.
- 5. 洪蕾, 常晋义, 关玉景. 动态血氧饱和度监测算法的研究. 常熟理工学院学报(自然科学), 2009, 23(2): 106-110.
- 6. Zhao Wenjun. Measurement of pulse oximetry based on dynamic spectroscopy//2013 International Conference on Mechatronic Sciences, Electric Engineering and Computer (MEC), Shenyang: 2013: 1013-1013.
- 7. 吴小玲, 蔡桂艳. 可穿戴式血氧传感器的设计和定标方法研究. 生物医学工程学杂志, 2009, 26(4): 731-738.
- 8. 邓宁堃, 钱志余. 近红外实时在位检测系统及其在药代动力学中的应用研究. 生物医学工程学杂志, 2012, 9(2): 365-369.
