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Organism ingredient measuring apparatus capable of highly precise non-invasive organism ingredient measurement

A technology of living organisms and measurement, applied in measurement devices, analytical materials, diagnostic recording/measurement, etc., to solve problems such as inability to obtain accurate measurement results

Inactive Publication Date: 2008-12-31
OMRON HEALTHCARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Moreover, since the device of Patent Document 2 does not use the above-mentioned measurement method that uses heat as a parameter to correct the error of light absorption, the measurement result includes the influence of heat, and there is a problem that a high-precision measurement cannot be obtained. problem with test results

Method used

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  • Organism ingredient measuring apparatus capable of highly precise non-invasive organism ingredient measurement
  • Organism ingredient measuring apparatus capable of highly precise non-invasive organism ingredient measurement
  • Organism ingredient measuring apparatus capable of highly precise non-invasive organism ingredient measurement

Examples

Experimental program
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no. 1 approach

[0072] refer to Figure 5 , The biological component measurement sensor 10 of the first embodiment includes a first filter 15A and a second filter 15B as the filter 15 .

[0073] The first optical filter 15A is a filter that transmits light of a wavelength (the above-mentioned first wavelength) that is specifically absorbed by the biological component as the measurement object, and the second optical filter 15B is a filter that transmits light of the biological component that is the measurement object. The optical filter transmits light having a wavelength (the above-mentioned second wavelength) of light not absorbed by the body composition. When the biological component to be measured is glucose, the first filter 15A corresponds to a 9.6 μm filter, and the second filter 15B corresponds to an 8.5 μm filter.

[0074] At least one of the first filter 15A and the second filter 15B is arranged (see Figure 5 ) at the position where the light guiding unit 13 for blocking is guide...

no. 2 approach

[0080] refer to Figure 7A The biological component measurement sensor 10 of the second embodiment includes a first light emitting unit 11A, a second light emitting unit 11B as the light emitting unit 11, and a first filter 15A and a second filter 15B as the filter 15. .

[0081] The first light emitting unit 11A irradiates light of a specifically absorbed wavelength (the first wavelength) to a biological component to be measured, and the second light emitting unit 11B irradiates a wavelength of light not to be absorbed to a biological component to be measured. (the above-mentioned second wavelength) light.

[0082] The first optical filter 15A is a filter that transmits light of a wavelength (the above-mentioned first wavelength) that is specifically absorbed by the biological component that is the measurement object, and the second optical filter 15B is that that passes the light that is not used as the measurement object. The optical filter transmits light of the waveleng...

no. 3 approach

[0099] The structure and structure of the biological component measurement sensor 10 of the biological component measurement device of the third embodiment Figure 7A The biological component measurement sensor 10 of the second embodiment shown has the same structure. In the biological component measurement sensor 10 of the present embodiment, the control unit 23 switches between the irradiation of the light of the first wavelength from the first light emitting unit 11A and the irradiation of the light of the second wavelength from the second light emitting unit 11B. Controlled by way of high-speed switching. The timing for switching between the first wavelength and the second wavelength is preferably shorter than the thermal response time of the living body as the object 30 to be measured.

[0100] When the biological component to be measured is glucose, the light emitting unit 11 switches between the light having a wavelength of 9.6 μm and the light having a wavelength of 8...

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Abstract

A biological component measurement device where light of a first wavelength, specific to a component to be measured, is applied by a light emission section (11) to an object (30) to be measured, the light of the first wavelength, which light is the reflected light from the object (30), and light of a second wavelength, which light is black body radiation from the object (30) and is not absorbed in the above component, are received by a light receiving section (17) through filters (15A, 15B), and the concentration of the component is calculated using the amount of the light received.

Description

technical field [0001] The present invention relates to a biological component measurement device and a biological component measurement sensor, and more particularly to a biological component measurement device and a biological component that non-invasively measure a biological component by receiving light from a living body Measuring sensor. Background technique [0002] The concentration of a specific component contained in living tissue represented by a subject's blood, body fluid, etc. is measured. Representative examples of the specific components to be measured include glucose, hemoglobin, oxyhemoglobin, trilaurin, cholesterol, albumin, and urea. In particular, the measurement of blood sugar is becoming more and more important as a self-management tool for diabetic patients, and high-frequency measurement is related to the improvement of QOL (Quality of life: quality of life) of patients, and it is also related to heart disease and complications prevention. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/35A61B5/1455
CPCA61B5/14532A61B5/14546A61B5/1455G01N21/314G01N21/35G01N2021/3185G01N2021/3531
Inventor 时田宗雄
Owner OMRON HEALTHCARE CO LTD