[1]朱子孚,文斌,吴柔,等.自适应脉搏氧系统设计与实现[J].中国医学物理学杂志,2021,38(8):990-995.[doi:DOI:10.3969/j.issn.1005-202X.2021.08.014]
 ZHU Zifu,WEN Bin,et al.Design and implementation of adaptive pulse oximetry[J].Chinese Journal of Medical Physics,2021,38(8):990-995.[doi:DOI:10.3969/j.issn.1005-202X.2021.08.014]
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自适应脉搏氧系统设计与实现()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
38卷
期数:
2021年第8期
页码:
990-995
栏目:
医学信号处理与医学仪器
出版日期:
2021-08-02

文章信息/Info

Title:
Design and implementation of adaptive pulse oximetry
文章编号:
1005-202X(2021)08-0990-06
作者:
朱子孚12文斌12吴柔12袁思念12李若薇12叶继伦123张旭123
1.深圳大学医学部生物医学工程学院, 广东 深圳 518000; 2.深圳市生物医学工程重点实验室, 广东 深圳518000; 3.广东省生物医学信号检测与超声成像重点实验室, 广东 深圳 518000
Author(s):
ZHU Zifu1 2 WEN Bin1 2 WU Rou1 2 YUAN Sinian1 2 LI Ruowei1 2 YE Jilun1 2 3 ZHANG Xu1 2 3
1. School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518000, China 2. Shenzhen Key Laboratory for Biomedical Engineering, Shenzhen 518000, China 3. Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Shenzhen 518000, China
关键词:
自适应脉搏波信号低灌注指数血氧饱和度
Keywords:
Keywords: adaptive pulse wave signal hypoperfusion index blood oxygen saturation
分类号:
R318.6
DOI:
DOI:10.3969/j.issn.1005-202X.2021.08.014
文献标志码:
A
摘要:
介绍一种自适应脉搏氧测量系统,使用模拟开关切换反馈电阻阻值,粗调系统增益;通过前级反馈调节MCU的DA输出,改变恒流驱动大小,微调系统增益。在两种机制协调下,实现系统增益精确控制,实现信号的宽范围测量,满足在低灌注指数下对弱脉搏的信号采集,并实现脉率、灌注指数、血氧饱和度的精确计算。
Abstract:
Abstract: An adaptive pulse oximetry is introduced in the study. The system uses an analog switch to change the resistance of the feedback resistor for the coarse-tuning of system gain, and changes the DA output of MCU through controlling the feedback of the preamp?ircuitry to change constant current drive size, thus completing the fine-tuning of system gain. Under the coordination of two kinds of mechanisms, the proposed pulse oximetry has the abilities of controlling system gain precisely and measuring wide-range signals. Therefore, the pulse oximetry can realize the acquisition of weak pulse signals and the accurate calculations of pulse rate, perfusion index and blood oxygen saturation under hypoperfusion.

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备注/Memo

备注/Memo:
【收稿日期】2020-12-04 【基金项目】深圳市科创委重大产业关键技术研发项目(2019021514- 0144982) 【作者简介】朱子孚,硕士,研究方向:生命信息监护与支持,E-mail: zhuzifu1997@foxmail.com 【通信作者】叶继伦,博士,教授,研究方向:生命信息监护与支持、医疗器械标准化与设计应用,E-mail: yejilun@126.com
更新日期/Last Update: 2021-07-31