A sweat concentration-based human body conductance test analysis instrument

A test analysis, human body electricity technology, applied in blood characterization devices, diagnostic recording/measurement, medical science, etc.

Inactive Publication Date: 2016-10-12
XIANYANG KANROTA DIGITAL ULTRASOUND SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Diabetes is a dangerous disease common in middle-aged and elderly people. There is no cure for it yet. However, if the risk of diabetes can be predicted in the early stage, it can be controlled through appropriate diet, exercise, and health care. to prevent diabetes

Method used

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  • A sweat concentration-based human body conductance test analysis instrument
  • A sweat concentration-based human body conductance test analysis instrument
  • A sweat concentration-based human body conductance test analysis instrument

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Embodiment Construction

[0021] The main components of the hardware circuit of the present invention are as figure 1 As shown, it includes four parts: voltage source generation and switching application circuit 2, inter-electrode voltage switching measurement circuit 3, current measurement circuit 4 and digital control circuit 5. The voltage source generation and switching application circuit 2 generates a voltage that increases gradually from zero with a step size of 0.1V according to the instruction of the digital control circuit 5 until the voltage increases to 4V, and passes through the switch circuit 23, according to the instruction of the digital control circuit 5, 24 to switch the application between each electrode pair. The inter-electrode voltage switching measurement circuit 3 switches between each electrode plate 1 pair and measures the actual voltage between the positive and negative electrode plates 1 of each electrode pair according to the instruction of the digital control circuit 5 . ...

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Abstract

The invention provides a sweat concentration-based human body conductance test analysis instrument comprising electrode plates coming into contact with the hands and feet of a human body. Sweat reacts with the electrode plates to generate a conductance; the conductance varies with the concentration of sweat. The voltage applied to each pair of electrodes is a direct current voltage not greater than 4V, and increases from 0V stepwise along with time; each step voltage is applied to all the electrode pairs in turn; the polarities of each electrode pair are reversed alternately and the maintaining time of one polarity state is not less than 50ms; when a voltage is applied to one pair of electrodes, all the other electrodes are in a high resistance state. Through sampling resistors, the current change between each pair of electrodes is measured; the voltage between two electrodes and the voltages between the two electrodes and all the other high resistance state electrodes are measured. Various conductance values are calculated according to the current values and the corresponding voltage values; diabetes risk can be evaluated according to the relevant conductance values and the symmetry thereof.

Description

technical field [0001] The invention belongs to the field of medical electronic instruments, and relates to a human body conductance test analyzer based on sweat concentration, which is used to measure the size and symmetry of the conductance value and judge the risk of diabetes. Background technique [0002] Diabetes is a dangerous disease common in middle-aged and elderly people. There is no cure for it yet. However, if the risk of diabetes can be predicted in the early stage, it can be controlled through appropriate diet, exercise, and health care. to prevent diabetes. Studies have found that in the early stages of diabetes, the sweat glands of the hands and feet will be damaged, and the concentration of Cl ions in the sweat secreted by them is lower than that of healthy people. [0003] Cl ions react with metal Ni to form a Cl compound film, and the conductivity of the film is related to the concentration of Cl ions that react. The greater the concentration of Cl ions,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/053A61B5/145
CPCA61B5/0533A61B5/14517A61B5/14532
Inventor 尤剑鸣杜文扬
Owner XIANYANG KANROTA DIGITAL ULTRASOUND SYST CO LTD
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