Noninvasive glucometer

A blood glucose meter and sensor technology, which is applied in the field of blood glucose detection, can solve the problems of blood glucose detection numerical error, low detection sensitivity, complex equipment or methods, etc., and achieve the effects of strong adaptability, small equipment size, and accurate and reliable detection results

Inactive Publication Date: 2016-01-13
SHANGHAI JIAO TONG UNIV
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  • Abstract
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Problems solved by technology

However, the above-mentioned methods have low detection sensitivity, too complicated equipment or methods, large individual differences among various groups of people, etc., resulting in large errors in blood glucose detecti

Method used

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Examples

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Embodiment Construction

[0025] Such as figure 2 As shown, the non-invasive blood glucose meter of the present invention includes a fixing device, an infrared light source, a sensor, a detection circuit and a power supply, and the fixing device is configured to fix the blood glucose meter on the surface of the body part to be measured; the infrared light source is configured To emit infrared light; the sensor is configured to connect the infrared light source and the detection circuit, and complete photoelectric conversion; the detection circuit is configured to receive the data of the sensor, calculate and output the blood sugar value; the sensor What is received is the spectrum diffusely reflected from the dermis.

[0026] The theoretical basis for the glucose concentration test by the near-infrared spectroscopy method adopted by the non-invasive blood glucose meter of the present invention is Lambert Beer's law:

[0027] A λ = l ...

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Abstract

The invention discloses a glucometer based on a near infrared spectroscopy method for noninvasive blood glucose testing. The glucometer comprises a fixing device, an infrared light source, a sensor, a detection circuit and a power source, wherein the fixing device is configured to fix the glucometer on the surface of a tested human part; the infrared light source is configured to emit infrared light; the sensor is configured to connect the infrared light source and the detection circuit and complete photoelectric conversion; the detection circuit is configured to receive data of the sensor and calculate an output blood glucose value; and the sensor receives light spectra diffused and reflected from a dermis layer. According to the invention, near infrared light diffuse reflection detection technology is adopted; through utilizing infrared light spectrum diffuse reflection and collecting light spectrum signals diffused and reflected by the dermis layer, the noninvasive glucometer is high in suitability for different people, small in size and accurate and reliable in detection result.

Description

technical field [0001] The invention relates to the field of blood glucose detection, in particular to a noninvasive blood glucose meter. Background technique [0002] Diabetes has become a disease with a high incidence rate. According to the survey, nearly 100 million people in my country suffer from diabetes, and this number is still on the rise. The traditional blood sugar detection method has a prominent feature that the patient's blood must be obtained. However, for diabetic patients, the acupuncture wounds are more difficult to heal than non-diabetic wounds, which can easily lead to bacterial infection and complications. Therefore, those skilled in the art have done a lot of research on non-invasive blood sugar detection. Typical non-invasive blood sugar detection methods include optical methods such as near-infrared spectroscopy, mid-far infrared spectroscopy, Raman spectroscopy, photoacoustic spectroscopy, light scattering, and polarized light. Indirect methods suc...

Claims

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Application Information

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IPC IPC(8): A61B5/1455
Inventor 但亚平周晓飞
Owner SHANGHAI JIAO TONG UNIV
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