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Photoacoustic noninvasive blood glucose detector

A blood glucose detector and blood glucose technology, which are applied in the directions of diagnostic recording/measurement, medical science, sensors, etc., can solve the problem of low accuracy, and achieve the effect of improving detection accuracy and enriching photoacoustic spectrum information.

Inactive Publication Date: 2020-02-21
四川中川新迈光声医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing blood glucose detectors include a control circuit, a laser generator circuit, a probe and a signal processing circuit. The laser generator generates a laser signal and leads it into the probe through an optical fiber to realize blood glucose detection, which has the problem of low precision.

Method used

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  • Photoacoustic noninvasive blood glucose detector

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] like figure 1 The photoacoustic non-invasive blood glucose detector shown includes a laser generating circuit, a probe 10, a signal processing circuit and a control circuit. The laser generating circuit is connected to the control circuit and is controlled by the control circuit; the laser generating circuit guides the laser signal to the into the probe; the signal processing circuit processes the probe signal and transmits it to the control circuit to judge the blood sugar.

[0015] The laser generating circuit includes a pulse generating circuit 3 , a switch circuit 4 , a laser diode 5 , an optical coupler 7 and a beam combiner 9 connected in sequence. There are multiple laser diodes, a laser diode and an optical coupler form a light generating branch, and the multiple branches form a parallel relationship, which is synthesized by a beam combiner and transmitted in a single optical fiber; the pulse generating circuit generates a pulse signal to The laser diodes are d...

Embodiment 2

[0018] Based on the principles of the above embodiments, this embodiment optimizes the structure of the above embodiments. The signal processing circuit includes a signal amplifying circuit 12 and an A / D conversion circuit 13 connected in sequence.

[0019] In order to improve the operating efficiency of the equipment, the control circuit includes a first control unit 14 that realizes blood sugar judgment according to the output signal of the signal processing circuit, a memory 15 for storing blood sugar information, triggers the operation of the laser generating circuit and the processing circuit, and realizes blood sugar data display control The second control part 2, the second control part 2 controls the display 1 to display. That is to say, the control circuit part of this solution uses two control components to respectively realize blood glucose judgment, trigger processing circuit operation and realize blood glucose data display control, so as to avoid the operation burd...

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Abstract

The invention discloses a photoacoustic noninvasive blood glucose detector which comprises a laser emitting circuit, a probe, a signal processing circuit and a control circuit, wherein the laser emitting circuit is used for generating laser signals; the probe is used for detecting tissue blood glucose according to the laser signals; the signal processing circuit is used for processing probe signals; the control circuit is used for achieving blood glucose judgment and component control; and the laser emitting circuit comprises a pulse emitting circuit for transmitting a pulse signal to drive laser diodes, a switch circuit for controlling on / off of laser diode branches, a plurality of laser diodes, a light beam combiner for combining multiple paths of laser into one path of light to be output, and an optical coupler which is arranged between the laser diodes and the light beam combiner. As the laser emitting circuit adopts multiple laser diodes, multiple paths of pulse light can be emitted, rich photoacoustic spectrum information can be acquired through stimulation of multiple wavelengths, and the detection precision of the blood glucose detector can be greatly improved.

Description

technical field [0001] The invention relates to the field of blood glucose detection devices, and more specifically relates to a photoacoustic non-invasive blood glucose detector. Background technique [0002] Blood glucose detectors are instruments used to measure blood sugar. Currently, household blood glucose meters on the market are mainly divided into two categories: electrochemical methods and light reflection technologies. Light reflection technology is a technology based on differences in optical absorption inside biological tissues. Existing blood glucose detectors include a control circuit, a laser generator circuit, a probe and a signal processing circuit. The laser generator generates a laser signal and leads it into the probe through an optical fiber to realize blood glucose detection, which has the problem of low precision. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a photoacoustic non-in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1455
CPCA61B5/0095A61B5/14532A61B5/1455
Inventor 陈炳章
Owner 四川中川新迈光声医疗科技有限公司
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