摘要
研究了一种基于能量代谢守恒法的便携式无创血糖检测仪,通过集成无创血糖传感器检测人体手指表面的温度、湿度、辐射以及人体血氧饱和度、脉率等参数,采用DSP处理器分析计算出血糖浓度。介绍了该血糖仪的检测原理、硬件结构、软件和算法流程。用所研制的血糖仪进行了临床实验,得到的血糖值与用大型生化分析仪测得的血糖值的相关系数达到0.862,绝对误差范围是?0.75mmol/L^0.5mmol/L,但大部分结果的误差不超过0.3mmol/L。实验证明,能量代谢守恒法无创血糖检测技术是可行的。
A portable non-invasive blood glucose apparatus based on the method of COEM （conservation of energy metabolism） is developed. It can calculate the concentration of the blood glucose with DSP （Digital Signal Processor） by measuring the temperature, humidity, radiation of the finger surface and the local blood oxygen level, and the pulse rate of the body with an integrated non-invasive blood glucose sensor. The principle of this apparatus, the architecture of the hardware, the flow charts of the software and the algorithm are introduced. As a result, comparing with the test results obtained by large automatic biochemical analyzer （AUTOLAB18）, the correlation coefficient of this apparatus equals to 0.862 in clinical tests, and the range of absolute error is from -0.75 mmol/L to 0.5 mmol/L. The errors of most results are no more than 0.3 mmol/L. The experiments prove that the proposed method is feasible.
出处
《电子测量与仪器学报》
CSCD
2009年第6期108-112,共5页
Journal of Electronic Measurement and Instrumentation
基金
国家863计划(编号:2007AA022000)资助项目
关键词
血糖检测
无创
能量代谢守恒法
DSP
blood glucose measurement
conservation of energy metabolism
DSP
non-invasive
