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Living body ingredient concentration measuring instrument

A measuring device, a technology for concentration determination, applied in the direction of measuring device, photometry, spectrometry/spectrophotometry/monochromator, etc., can solve the problems of lack of consideration, deviation, and high concentration of biological components

Inactive Publication Date: 2009-04-01
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of the eardrum temperature, there is a problem that the measurement of the blood sugar level using the infrared radiation emitted by the eardrum will cause deviations.
[0008] However, the device described in Patent Document 2 does not take into account the influence of the thickness of the eardrum contained in the infrared light emitted by the eardrum. Therefore, as a result, it cannot be said that the accuracy of the concentration of biological components obtained is very high.

Method used

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  • Living body ingredient concentration measuring instrument
  • Living body ingredient concentration measuring instrument
  • Living body ingredient concentration measuring instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0107] figure 2 It is a perspective view showing the appearance of the biological component concentration measuring device 100 according to this embodiment.

[0108] The biological component concentration measurement device 100 (hereinafter referred to as "measurement device 100") includes: a main body 102; and a waveguide 104 provided on the side of the main body 102. The main body 102 is provided with a display 114 for displaying the measurement result of the concentration of biological components; a power switch 101 for turning ON / OFF the power of the measuring device 100; and a measurement start switch 103 for starting the measurement.

[0109] The display 114 is a liquid crystal display, an organic electroluminescent (EL) display, or the like. display 114 with figure 1 The output section 14 shown corresponds.

[0110] The waveguide has a function of being inserted into the ear canal to guide the infrared light emitted from the eardrum to the inside of the measurement ...

Embodiment approach 2

[0183] Referring to Figure 11 and Figure 12 , the configuration of the biological component concentration measuring device according to the present embodiment will be described.

[0184] FIG. 11 shows the hardware configuration of a biological component concentration measurement device 300 (hereinafter referred to as "measurement device 300") according to this embodiment. also, Figure 12 It is a perspective view showing the optical filter wheel 306 in the measurement device 300 .

[0185] The measurement device 300 differs from the measurement device 100 of the first embodiment in that the measurement device 300 has a function of measuring the thickness of the eardrum using laser light. In order to realize this function, the body inside of measuring device 300 is provided with: light source 310, the first condenser lens 312, the second condenser lens 314, actuator 316, spatial filter 318, light detector 320, the first half mirror 142 and the 2nd half mirror 144. Since it...

Embodiment approach 3

[0228] Figure 14 It is a perspective view showing the appearance of a biological component concentration measurement device 400 (hereinafter referred to as "measurement device 400") according to this embodiment. Since the appearance is essentially the same as figure 1 are the same, so its description is omitted.

[0229] Next, the internal configuration of the main body of the measurement device 400 will be described with reference to FIG. 15 . FIG. 15 is a diagram showing the hardware configuration of the measurement device 400 .

[0230] The measurement device 400 differs from the measurement device 100 of Embodiment 1 in that the measurement device 400 has a function of increasing the intensity of infrared light emitted from the eardrum. In order to realize this function, an infrared light source 700 for emitting infrared rays and a half mirror 702 are provided inside the main body of the measuring device 400 . Since other configurations are the same as those of the me...

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Abstract

An instrument for measuring the concentration of a living body ingredient based on infrared ray radiated from an eardrum while taking account of influence of thickness of the eardrum of a subject. The instrument for measuring the concentration of a living body ingredient comprises a section for detecting infrared light radiated from an eardrum, a section for acquiring thickness information on the thickness of the eardrum, and a section for operating the concentration of a living body ingredient based on detected infrared light and acquired thickness information. Since influence of the thickness of eardrum of a subject is included in infrared light radiated from the eardrum, concentration of the living body ingredient can be measured with high precision when it is calculated based on the thickness information on the eardrum as well as the detected infrared light.

Description

technical field [0001] The present invention relates to a biological component concentration measuring device for non-invasively measuring biological information by using infrared radiated light emitted by a living body. Background technique [0002] As a conventional biological component concentration measuring device, a non-invasive measurement of a blood sugar level using infrared radiation emitted from a living body, particularly from an eardrum has been proposed. For example, Patent Document 1 discloses a device for determining a blood sugar level by non-invasively measuring radiation spectrum rays specific to human tissue among infrared rays naturally emitted as heat from the eardrum. [0003] However, according to Planck's law of radiation, the intensity of infrared radiation emitted by thermal radiation of an object varies with the temperature of the object emitting infrared light. Since the tympanic membrane temperature varies with body temperature, it is possible ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1455G01N21/35
CPCG01N21/35G01J2003/1213G01J1/0451G01J1/04A61B5/1455A61B5/6817A61B5/14532G01J1/0448A61B5/1075
Inventor 盐井正彦
Owner PANASONIC CORP