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基于Lambert-Beer定律修正血氧饱和度R值曲线

马俊 刘刚 李超 闻倩宇

马俊,刘刚,李超,等. 基于Lambert-Beer定律修正血氧饱和度R值曲线[J]. 计量科学与技术,2023, 67(1): 23-28 doi: 10.12338/j.issn.2096-9015.2022.0252
引用本文: 马俊,刘刚,李超,等. 基于Lambert-Beer定律修正血氧饱和度R值曲线[J]. 计量科学与技术,2023, 67(1): 23-28 doi: 10.12338/j.issn.2096-9015.2022.0252
MA Jun, LIU Gang, LI Chao, WEN Qianyu. Correction and Calibration of R Value Curve for Blood Oxygen Saturation Measurement Model Based on Lambert-Beer Law[J]. Metrology Science and Technology, 2023, 67(1): 23-28. doi: 10.12338/j.issn.2096-9015.2022.0252
Citation: MA Jun, LIU Gang, LI Chao, WEN Qianyu. Correction and Calibration of R Value Curve for Blood Oxygen Saturation Measurement Model Based on Lambert-Beer Law[J]. Metrology Science and Technology, 2023, 67(1): 23-28. doi: 10.12338/j.issn.2096-9015.2022.0252

基于Lambert-Beer定律修正血氧饱和度R值曲线

doi: 10.12338/j.issn.2096-9015.2022.0252
详细信息
    作者简介:

    马俊 (1987-),北京市海淀区计量检测所工程师,研究方向:流量计量、医学计量等,邮箱:305171336@qq.com

Correction and Calibration of R Value Curve for Blood Oxygen Saturation Measurement Model Based on Lambert-Beer Law

  • 摘要: 针对血氧模拟仪现有的R值曲线无法满足种类繁多的血氧仪计量检定需求,为解决血氧仪与模拟仪不兼容问题,提出一种基于Lambert-Beer定律的血氧饱和度测量模型的修正方法。在现有的检定装置上添加滤光介质,以实现在原有的测量模型上加一个修正值,从而对R值曲线进行修正。实验表明,通过添加滤光介质修正R值曲线,选择不同R值曲线检测血氧仪时均显示出正常的测量值,且示值重复性较小,符合国家计量检定规程要求,有效解决了血氧模拟仪与血氧仪之间的不兼容问题。
  • 图  1  透射式血氧仪测量原理示意图

    Figure  1.  Schematic diagram of transmission-type oximeter measurement principle

    图  2  光电容积脉搏波形成模型图

    Figure  2.  Schematic diagram of photoplethysmography (PPG) pulse wave formation model

    图  3  HbO2与Hb摩尔消光系数图

    Figure  3.  Molar absorption coefficient diagram of HbO2 and Hb

    图  4  模拟手指与监护仪指夹连接图

    Figure  4.  Schematic diagram of connection between simulated finger and monitor finger clip

    图  5  复印纸光谱曲线图

    Figure  5.  Spectrogram of photocopy paper

    表  1  不同R值曲线的血氧饱和度测量值

    Table  1.   Oxygen saturation measurements with different R value curves of the monitor

    标准值
    (%)
    Nellcor
    (%)
    BCI
    (%)
    Datascope
    (%)
    Datex
    (%)
    Masimo
    (%)
    1008999///
    958999///
    908999///
    858999///
    808999///
    708999///
    注:“/”表示未显示任何数值。
    下载: 导出CSV

    表  2  加滤光介质后监护仪血氧模块测量值

    Table  2.   Measurement value of blood oxygen module of monitor after adding optical filter medium

    标准值
    (%)
    Nellcor
    (%)
    BCI
    (%)
    Datascope
    (%)
    Datex
    (%)
    Masimo
    (%)
    100100100100100100
    959595949595
    909091899192
    858486838485
    807981787880
    707271656769
    下载: 导出CSV

    表  3  加滤光介质后监护仪血氧模块示值重复性

    Table  3.   Indication repeatability of blood oxygen module of monitor after adding optical filter medium

    标准值(%)R值曲线被检监护仪测量值(%)示值重复性(%)
    100Nellcor1001001001001001000.0
    909090919091910.5
    707172717172710.5
    100BCI1001001001001001000.0
    909191909091910.5
    707271717272720.5
    100Datascope1001001001001001000.0
    908988888989880.5
    706566666564650.8
    100Datex1001001001001001000.0
    909192929192910.5
    706768676768680.5
    100Masimo1001001001001001000.0
    909292939393930.5
    706969706969710.8
    下载: 导出CSV
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出版历程
  • 网络出版日期:  2023-01-18
  • 刊出日期:  2023-01-18

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