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Journal of Central South University of Technology

, Volume 16, Issue 6, pp 982–986 | Cite as

Non-invasive glucose measuring apparatus based on conservation of energy method

  • Zhen-cheng Chen (陈真诚)Email author
  • Xing-liang Jin (金星亮)
  • Jian-ming Zhu (朱健铭)
  • Di-ya Wang (王弟亚)
  • Ting-ting Zhang (张婷婷)
Article

Abstract

A new non-invasive blood glucose measuring apparatus (NBGMA) made up of MSP430F149 SCM (single chip micyoco) was developed, which can measure blood glucose level (BGL) frequently, conveniently and painlessly. The hardware and software of this apparatus were designed, and detecting algorithms based on conservation of energy method (COEM) were presented. According to the law of conservation of energy that the energy derived by human body equals energy consumed by metabolism, and the relationship between convection, evaporation, radiation and the BGL was established. The sensor module was designed. 20 healthy volunteers were involved in the clinical experiment. The BGL measured by an automatic biochemical analyzer (ABA) was set as the reference. Regression analysis was performed to compare the conservation of energy method with the biochemical method, using the 20 data points with blood glucose concentrations ranging from 680 to 1 100 mg/L. Reproducibility was measured for healthy fasting volunteers. The results show that the means of BGL detected by NBGMA and ANA are very close to each other, and the difference of standard deviation (SD) is 24.7 mg/L. The correlative coefficient is 0.807. The coefficient of variation (CV) is 4% at 921.6 mg/L. The resultant regression is evaluated by the Clarke error grid analysis (EGA) and all data points are included in the clinically acceptable regions (region A: 100%, region B: 0%). Accordingly, it is feasible to measure BGL with COEM.

Key words

single chip non-invasive measurement blood glucose conservation of energy method 

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Copyright information

© Central South University Press and Springer Berlin Heidelberg 2009

Authors and Affiliations

  • Zhen-cheng Chen (陈真诚)
    • 1
    Email author
  • Xing-liang Jin (金星亮)
    • 1
  • Jian-ming Zhu (朱健铭)
    • 1
  • Di-ya Wang (王弟亚)
    • 1
  • Ting-ting Zhang (张婷婷)
    • 1
  1. 1.School of Info-physics and Geomatics EngineeringCentral South UniversityChangshaChina

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