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Measurement apparatus and detection device

A measurement device and detection device technology, which can be used in blood flow measurement, diagnostic recording/measurement, medical science, etc., and can solve problems such as the type of biological information or the density change of blood vessels

Inactive Publication Date: 2017-09-12
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that biological information greatly fluctuates depending on the type of tissue or the density of blood vessels in the part of the living body through which the light reaching each light receiving unit passes.

Method used

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  • Measurement apparatus and detection device
  • Measurement apparatus and detection device
  • Measurement apparatus and detection device

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Experimental program
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no. 1 approach

[0029] figure 1 It is a side view of the measurement device 100 according to the first embodiment of the present invention. The measurement device 100 of the first embodiment is a biometric device that non-invasively measures the biological information of a subject, and is installed in a part of the subject's body as a measurement target (hereinafter referred to as "measurement part") M. The measurement device 100 of the first embodiment is a wristwatch-type portable device including a housing portion 12 and a strap 14. It can be attached to the subject's wrist by winding the strap 14 around the wrist as an example of the measurement site M . The measurement device 100 of the first embodiment contacts the surface 16 of the subject's wrist. In the first embodiment, the blood oxygen saturation (SpO 2 ) Is exemplified as biological information. The blood oxygen saturation indicates the ratio (%) of hemoglobin bound to oxygen in hemoglobin in the blood of the subject, and is an ...

no. 2 approach ＞

[0055] The second embodiment of the present invention will be described. In addition, in each configuration exemplified below, for elements whose functions and functions are the same as those of the first embodiment, the symbols used in the description of the first embodiment will be directly used, and detailed descriptions of the symbols will be appropriately omitted.

[0056] Image 6 They are a plan view and a cross-sectional view illustrating the positional relationship of the light emitting unit E1, the light emitting unit E2, and the light receiving unit R0 in the second embodiment. Such as Image 6 The light receiving unit R0 of the second embodiment includes a light receiving unit R1 (an example of a first light receiving unit) and a light receiving unit R2 (an example of a second light receiving unit) provided on the detection surface 28. The light-receiving portion R1 and the light-receiving portion R2 are photoelectric conversion elements such as photodiodes that recei...

no. 3 approach

[0061] Figure 7 It is a plan view illustrating the positional relationship of the light emitting unit E1, the light emitting unit E2, and the light receiving unit R0 in the third embodiment. Such as Figure 7 As an example of, the light receiving section R0 of the third embodiment includes the light receiving section R1 and the light receiving section R2 similarly to the first embodiment. The light receiving unit R1 receives near-infrared light (wavelength λ1) emitted from the light emitting unit E1 and passing through the measurement site M, and generates a detection signal P1 corresponding to the received light level. The light receiving unit R2 receives the red light (wavelength λ2) emitted from the light emitting unit E2 and passing through the measurement site M, and generates a detection signal P2 corresponding to the received light level. The configuration and method of the analysis unit 32 specifying the blood oxygen saturation level S from the detection signal P1 and ...

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PUM

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Abstract

The invention provides a measurement apparatus and a detection device. Possibility for acquiring mistakenly shooting of laser biologic information is reduced. The measurement apparatus includes a first light emission unit that emits light having a first wavelength, a second light emission unit that emits light having a second wavelength of which an arrival depth with respect to a measurement site exceeds the arrival depth of the light having the first wavelength, a light reception unit that generates a detection signal corresponding to a light reception level of light arriving from the measurement site, and an analysis unit that acquires biological information corresponding to the detection signal. The first light emission unit, the second light emission unit, and the light reception unit are installed on a detection surface facing the measurement site, and a distance between the first light emission unit and the light reception unit exceeds a distance between the second light emission unit and the light reception unit.

Description

Technical field [0001] The present invention relates to a measuring device and a detection device for measuring biological information. Background technique [0002] Conventionally, various measurement techniques have been proposed for non-invasively measuring biological information by irradiating a living body with light. For example, Patent Document 1 discloses a configuration in which light emitted from a light-emitting window and reflected inside a living body is received through each of a plurality of light-receiving windows, and the blood oxygen saturation of the living body is measured based on the light-receiving result. [0003] 【Prior Technical Literature】 [0004] 【Patent Literature】 [0005] Patent Document 1: Japanese Patent Application Publication No. 2006-75354 [0006] However, the depth in a living body through which light from the light-emitting point reaches the light-receiving point changes in accordance with the distance between the light-emitting point and the li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1455A61B5/00A61B5/026
CPCA61B5/0261A61B5/14532A61B5/1455A61B5/14552A61B5/6803A61B5/681A61B5/7235A61B5/746A61B2562/0238A61B2562/0242A61B2562/043
Inventor 桥本大毅沢渡彩映
Owner SEIKO EPSON CORP