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Information acquisition device

A technology for obtaining devices and detecting waves, applied in medical science, using spectrum diagnosis, diagnosis, etc., can solve problems such as difficult portable devices, inability to obtain internal blood vessel information, and increased power consumption

Pending Publication Date: 2022-07-26
LAPIS SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Regarding the near-infrared wavelength, for example, in the case of using a silicon semiconductor, due to its material properties, if the output source 220 and the output source 320 do not inject a strong light equivalent to several watts or more into the interior of the organism, it is impossible to obtain the inside of the organism. e.g. blood vessel information
As a result, power consumption increases, so it is difficult to apply to portable devices, and is currently limited to applications such as palm vein authentication that is relatively on the surface

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0045] use Figure 1 to Figure 6 , the information acquisition device 10 of the first embodiment will be described.

[0046] figure 1 is a conceptual diagram of the information acquisition device 10 of the first embodiment, figure 2 This is a schematic external view showing the measurement state of the information acquisition device 10 according to the first embodiment, image 3 is a photograph showing an example of an image acquired by the information acquisition device 10 of the first embodiment, Figure 4 For a graph showing the absorption rates of water and hemoglobin, Figure 5 For a graph showing the absorption spectrum of hemoglobin (oxyhemoglobin, deoxyhemoglobin), Image 6 It is a photograph which shows an example of the image acquired by the information acquisition apparatus 10 of 1st Embodiment.

[0047] like figure 1 As shown, the information acquisition device 10 of the present embodiment includes an output source 20 including an LED for irradiating a det...

no. 2 approach

[0066] In this embodiment, the wavelength of the detection wave output from the output source in the first embodiment is limited to a specific wavelength for use.

[0067] Hereinafter, the content will be described in further detail.

[0068] Figure 4 Absorption rates for water 110 and hemoglobin 120 are shown, respectively.

[0069] The detection wave in the present embodiment is light having a wavelength permeable to a living body and having a higher absorbance of the hemoglobin 120 than that of the water 110 .

[0070] Here, the wavelength permeable to the living body includes a wavelength band (650 nm to 950 nm) that is easily transmitted through the living body, that is, the so-called “living body window 130 ”.

[0071] The main light-absorbing substances present in living organisms are water 110 and the oxygen transport medium present in blood, namely hemoglobin 120. Their absorption spectra are as follows: Figure 4 shown is strongly wavelength dependent.

[0072] ...

no. 3 approach

[0097] Figure 7 (A) is a photograph showing an example of an image obtained by the information obtaining device 10 of the third embodiment, Figure 7 (B) is expressed as Figure 7 (A) Conceptual diagram of the part of the image.

[0098]In the present embodiment, the receiving unit 30 receives the detection wave as an image, extracts, in the received image, a contour line 150 of the target portion whose contour is a pixel whose pixel value difference is larger than the surrounding by a threshold value or more, and calculates only the interior of the contour line 150 absorbance. Here, muscle and fat are formed around the blood vessel 160 .

[0099] In addition, the contour line 150 is formed by connecting the outer edges of the pixels whose pixel value difference is larger than the surrounding by a predetermined threshold value or more by a program embedded in the control unit inside the receiving unit 30 in advance. of.

[0100] According to the present embodiment, when ...

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PUM

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Abstract

The invention provides an information acquisition device which can easily and accurately acquire information in a living body compared with a transmission type and a reflection type. This information acquisition device is provided with: an output source that irradiates a subject living body with a detection wave; and a receiving unit capable of receiving the detection wave irradiated to the subject living body, the output source and the receiving unit being arranged such that the angle between the direction in which the detection wave is irradiated from the output source to the subject living body and the direction from the irradiation site of the subject living body irradiated to the detection wave to the receiving unit is an obtuse angle.

Description

technical field [0001] The present invention relates to an information acquisition device capable of acquiring biological information in a non-invasive manner by irradiating detection waves such as light to a living body. Background technique [0002] In recent years, with the improvement of health intentions as a background, there have been developed information acquisition devices that non-invasively analyze the shape of blood vessels, blood components, etc. inside the living body, and use it as a reference for health status and for daily living. Habitual disease advice. [0003] As such an information acquisition device, a reflection type (refer to Figure 9 ) and transmissive (see Figure 10 ) As a method of non-invasively measuring biological information by irradiating a detection wave such as light to a living body, the reflection type uses the detection wave reflected from the living body, and the transmission type uses the detection wave transmitted from the surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B5/1455
CPCA61B5/0075A61B5/14551A61B5/489
Inventor 三浦规之
Owner LAPIS SEMICON CO LTD