| 一种检测十二指肠胃返流光纤传感器的研制 |
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| 引用本文： | 陈国平,姜志茹,夏荣民,寿文德,龚均.一种检测十二指肠胃返流光纤传感器的研制[J].光子学报,2004,33(1):31-34. |
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| 作者姓名： | 陈国平 姜志茹 夏荣民 寿文德 龚均 |
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| 作者单位： | 上海交通大学生物医学工程系,上海,200030;西安交通大学第二医院消化科,西安,710004 |
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| 基金项目： | SupportedbytheNationalNaturalScienceFoundationofChinaunderGrantNo .39970 2 0 9 |
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| 摘 要： | 设计了可检测十二指肠胃返流的光纤传感器,该传感器由470 nm的信号光、595 nm参考光和光纤束构成,主要检测十二指肠返流物中的胆红素在470 nm与595 nm的吸光度,本文还对影响传感器检测的因素,诸如波长、pH、胃液中悬浮颗粒造成的散射作用以及其他的因素,做了详细评价.传感器可以达到10 mg/dl优良的动态响应范围,离体实验结果表明,该传感器可以作为临床动态检测手段.
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| 关 键 词： | 光纤传感器 胆红素 十二指肠胃返流(DGR) |
| 收稿时间： | 2003-02-18 |
Design of a Fiber-optic Sensor for Monitoring Duodenogastric Reflux |
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| Abstract.Design of a Fiber-optic Sensor for Monitoring Duodenogastric Reflux[J].Acta Photonica Sinica,2004,33(1):31-34. |
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| Authors: | Abstract |
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| Institution: | (1 Department of Biomedical Engineering, Shanghai JiaotongUniversity, Shanghai 200030 China)
(2 Department of Digestion, Second Hospital of Xi′an JiaotongUniversity, Xi′an 710004 China) |
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| Abstract: | A fiber-optic sensor for monitoring of duodenogastric reflux is fabricated. The sensing system, based on the principle of double-beam compensation, includes two diodes for light sources, blue at 470 nm as signal light and yellow at the wavelength of 595 nm as reference one, and a Y model fiber optic bundle for transmitting light. The sensor performs on detection of spectrophotometric absorption of bilirubin always present in entero-gastric reflux at 470 nm and 595 nm. A general evaluation of the sensor about factors affecting its detection is discussed in detail: Wavelength choice, pH, scattering effect resulting from gastric precipitates and others. The sensor shows a good excellent performance with a dynamic linear range of up to 10 mg/dl. The in-vitro experiment shows it can be used in clinical analysis of DGR. |
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| Keywords: | Fiber optic sensor Bilirubin Duodenogastric reflux (DGR) |
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