Portable blood sugar detector based on multi-ring array light sound sensor and testing method

A technology of blood glucose detector and multi-ring array, which is applied in the field of biomedical measurement and medical equipment, can solve the problems such as the greater influence of test paper, and achieve the effects of improving excitation and sensing efficiency, low cost, and increasing A-type detection depth

Inactive Publication Date: 2009-10-07
JIANGXI SCI & TECH NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, invasive or minimally invasive interventional detection methods are still commonly used for blood glucose testing. Although this method only requires a few microliters of peripheral blood and the corresponding test strips, the storage environment has a great impact on the test strips, and the pain makes patients still try to avoid this way

Method used

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  • Portable blood sugar detector based on multi-ring array light sound sensor and testing method
  • Portable blood sugar detector based on multi-ring array light sound sensor and testing method
  • Portable blood sugar detector based on multi-ring array light sound sensor and testing method

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Embodiment 1

[0018] Embodiment 1: A portable non-invasive blood glucose detector based on multi-ring array photoacoustic sensing technology, which includes an optical radiation unit A composed of a laser generator 1, an optical fiber 2, a focusing lens 3 and a driving circuit 4, and is composed of sequentially interconnected Signal processing unit B composed of circuit-connected impedance matching circuit 5, signal amplifying circuit 6, signal filtering circuit 7, A / D conversion circuit 8, pulse signal source 10 and signal processor 9 connected to A / D conversion circuit 8 , a test sensing unit C made up of a hollow multi-ring array ultrasonic sensor 11 and a test groove 13, an external control unit D made up of an input button 16, a signal display unit E made up of a display screen 17, and an energy supply made up of a battery 18 Unit F; the laser generator 1 connected to the driving circuit 4 is connected to the focusing lens 3 through the optical fiber 2, and the test slot 13 arranged on ...

Embodiment 2

[0020] Embodiment 2: A method for detecting blood glucose using a portable non-invasive blood glucose detector based on multi-ring array photoacoustic sensing technology, comprising the following steps:

[0021] 1) After the tested finger 14 of the tested person is coated with the ultrasonic coupling liquid 12, the fingernail 15 extends upwards into the test slot 13, and the blood glucose detector is turned on; the laser generator 1 selects pulsed semiconductor laser diodes with wavelengths of 905nm and 1550nm to emit The multi-wavelength laser is coupled into the optical fiber, focused and radiated to the measured finger 14 located under the focusing lens 3 through the optical fiber 2 and the focusing lens 3, and incident on the blood vessel through the nail 15, to stimulate and generate a photoacoustic signal;

[0022] 2) The photoacoustic signal is transmitted to the hollow multi-ring array ultrasonic sensor 11 located under the test groove 13. The hollow multi-ring array ul...

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Abstract

The invention relates to a portable non-invasive blood glucose detector and detection method based on multi-ring array photoacoustic sensing technology, which includes an optical radiation unit A composed of a laser generator, an optical fiber, a focusing lens and a driving circuit, an impedance matching circuit, Signal processing unit B composed of signal amplification circuit, signal filter circuit, A / D conversion circuit, pulse signal source and signal processor, test sensing unit C composed of hollow multi-ring array ultrasonic sensor, test slot, input button, display screen and battery. After the finger to be tested is coated with ultrasonic coupling fluid, it is extended into the test slot; due to the use of multi-ring array photoacoustic sensing technology in the forward receiving mode, continuous A-type dynamic focus scanning can be performed along the depth direction to monitor the blood sugar content of the human body, and at the same time provide depth Direction of blood glucose photoacoustic data at multiple sites. The invention has no wound during detection and does not need to extract blood; a miniaturized semiconductor laser tube is used as a light source, the system cost is low, and it is lightweight and easy to carry.

Description

technical field [0001] The invention relates to the technical fields of biomedical measurement and medical equipment, in particular to a portable non-invasive blood sugar detector and a detection method based on multi-ring array photoacoustic sensing. Background technique [0002] Diabetes is a worldwide frequently-occurring and common disease. It is the third most dangerous disease after cardiovascular disease and cancer. Long-term disturbance of blood sugar concentration can cause complications such as blindness and renal failure. Therefore, diabetes has become a threat to human beings. A big killer of life. To effectively control the disease, it is necessary to detect the blood sugar concentration of diabetic patients in real time, so as to determine the specific dosage and diagnosis plan, which has become a key technology in the diagnosis and treatment of diabetes. At present, invasive or minimally invasive interventional detection methods are still commonly used for bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/1455
Inventor 曾吕明刘国栋徐景坤
Owner JIANGXI SCI & TECH NORMAL UNIV
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