| 利用动脉血液的时变差分光谱实现血氧饱和度的测量 |
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| 引用本文： | 邹波.利用动脉血液的时变差分光谱实现血氧饱和度的测量[J].红外,2009,30(8):44-48. |
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| 作者姓名： | 邹波 |
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| 作者单位： | 深圳职业技术学院电子与信息学院,广东深圳,518055 |
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| 摘 要： | 血氧饱和度的无创检测已在临床医学中得到广泛应用.目前的测量方法主要基于人手指的双波长光度分析原理,存在测量重复性差、检测速率低和误差大等缺陷,而且由于它完全忽略光散射的影响,理论上有不合理性.为了改进现有技术,分析了光散 射对手指组织吸光度的影响,并根据动脉血液在红外及近红外区域(600nm～1000nm)吸光度的时变特性,引入了时变差分光谱的概念;提出了利用时变差分光谱实现血氧饱和度测量的方法,并首次推导出包含光散射因子的血氧饱和度计算公式.与现有技术的对比表明,该测量方法具有测量准确、检测速率高、抗干扰性强和方便实现的特点,在理论上更严谨、更科学.
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| 关 键 词： | 时变差分光谱 光散射 血氧饱和度 动脉血液 无创检测 |
| 收稿时间： | 2009/3/23 |
Measurement of Oxygenation Saturation Using Time-varying Differential Spectrum of Arterial Blood |
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| ZOU Bo.Measurement of Oxygenation Saturation Using Time-varying Differential Spectrum of Arterial Blood[J].Infrared,2009,30(8):44-48. |
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| Authors: | ZOU Bo |
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| Institution: | School of Electronic and Information Engineering;Shenzhen Polytechnic;Shenzhen 518055;China |
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| Abstract: | Non-invasive measurement of blood oxygen saturation has been widely used in clinic medicine.The existing measurement method is based on the principle of dual-wavelength spectrophotometric analysis of human's fingers.It has some disadvantages of poor repeatability,low detection rate and big error etc..Moreover,because the effect of light scattering is ignored totally,the method is somewhat unreasonable in theory.In order to improve the existing measurement technique,the influence of light scattering on the l... |
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| Keywords: | time-varying differential spectrum light scattering oxygen saturation arterial blood non-invasive measurement |
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