Intelligent microdestructive blood sugar tester measuring method and devcie

A measurement method and technology of a blood glucose meter, applied in the field of medical instruments, can solve problems such as inability to calibrate and ensure consistency

Inactive Publication Date: 2003-05-28
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the idea of ​​using near-infrared methods to detect blood sugar non-destructively has been proposed for many years, the above-mentioned instruments cannot be calibrated and ensure consistency due to the great differences in the optical properties, physiological states and accompanying metabolites of the human body.

Method used

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  • Intelligent microdestructive blood sugar tester measuring method and devcie
  • Intelligent microdestructive blood sugar tester measuring method and devcie
  • Intelligent microdestructive blood sugar tester measuring method and devcie

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Embodiment Construction

[0021] The intelligent minimal damage blood glucose meter measuring method and its device embodiments of the present invention are described in detail as follows in conjunction with the accompanying drawings:

[0022] The structure of the intelligent minimal damage blood glucose meter of this embodiment is as follows: figure 2 As shown, it includes a light source LED 4, a photodetector silicon photocell 2 for detecting reflected light intensity, a photodetector silicon photocell 3 for detecting light source light intensity, an amplifier 6 with low temperature drift, an analog switch 7, and a voltage-frequency converter (V / F) 8, microcontroller 9, serial E 2 PROM non-volatile memory 11, LCD display 10, serial interface unit 11, WEBCHIP network chip 13, 5V output power supply, test platform and components of blood glucose test strips, as well as software programs stored in the microcontroller.

[0023] The working principle of the intelligent minimal-damage blood glucose meter...

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Abstract

An intelligent microwound blood sugar measurer is composed of test platform; test paper for blood sugar; detecting unit consisting of light source, two optical detectors, two operational amplifiers, and V-F converter; and signal processing unit comprising microcontroller, non-volatile memory, display, communication interface and the optical reflectivity-blood sugar conversion program. Its measuring method is characterized by that the single wavelength is used to measure the reflectivity of reflected intensity to light source intensity and the blood sugar value is found out according to the function LN(C)=ax R+b.

Description

technical field [0001] The invention belongs to the field of medical instruments, in particular to a method and a device for measuring human body micro-damage blood sugar at home. Background technique [0002] At present, blood glucose measurement methods can be roughly divided into the following two categories: [0003] 1. Invasive measurement: California LifeScan Co., Ltd. (China Patent No. 1050930) uses a dual-wavelength method to measure blood glucose. The principle is to use the reaction between blood glucose and the substrate in the test paper, and establish a relationship between the reflectance and blood glucose. This measurement method corresponding devices such as figure 1 , the device includes a detection unit consisting of two wavelength light sources, a photodetector, an amplifier, a sample holder, an analog-to-digital converter, and a microprocessor connected to the detection unit, which is connected to an independent program and data The memory is connected ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/145G01N21/25G01N21/47G01N33/49G01N33/66
Inventor 丁海曙黄岚郝亚泓王广志方云婕
Owner TSINGHUA UNIV
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