JP2018199080A - 血中物質濃度測定装置及び導光部 - Google Patents
血中物質濃度測定装置及び導光部 Download PDFInfo
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0233—Special features of optical sensors or probes classified in A61B5/00
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/3501—Constructional details or arrangements of non-linear optical devices, e.g. shape of non-linear crystals
- G02F1/3507—Arrangements comprising two or more nonlinear optical devices
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
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Abstract
Description
導光部20と生体上皮Fとの間には、中赤外光に対して透明な材料で構成された略平板状のウィンドウ30が設けられ、ウィンドウ30と生体上皮Fとは密着する。ウィンドウ30を通過したレーザ光100は、生体上皮Fに入射する。生体上皮Fに対するレーザ光100の入射角は、導光部20の下面(ウィンドウ30の上面)に対する入射側導波路21の角度と、この角度でウィンドウ30に入射したレーザ光100の屈折角で定まる。
本発明の血中物質濃度測定装置は、生体の血液中に含まれる物質の濃度を測定する血中物質濃度測定装置であって、2.5μm〜12μmの範囲の波長をもち前記物質に吸収される第1のレーザ光を発振するレーザ発振器と、前記第1のレーザ光を前記生体に導き、かつ前記第1のレーザ光によって発生した前記生体からの第1の拡散反射光を導く導光部と、前記第1の拡散反射光の光強度を検出する光検出部と、を具備し、前記導光部には、前記第1の拡散反射光を前記光検出部に導く出射側導波路が設けられたことを特徴とする。
10、50 光源
11 励起光源
12、52 OPO(光パラメトリック発振器)
13 ミラー
14 集光レンズ
15 ビームスプリッタ
16 モニター用光検出器(モニター用光検出部)
20 導光部
21 入射側導波路
22 出射側導波路
30 ウィンドウ
30A スリット
40 光検出器(光検出部)
40A 光検出器(第1の光検出部)
40B 光検出器(第2の光検出部)
60 波長選別ビームスプリッタ
100 レーザ光
100A 第1のレーザ光
100B 第2のレーザ光
121、521 入射側半透鏡
122、522 出射側半透鏡
123 非線形光学結晶
200 拡散反射光
200A 第1の拡散反射光
200B 第2の拡散反射光
523 第1の非線形光学結晶
524 第2の非線形光学結晶
F 生体上皮(生体)
Claims (1)
- 生体の血液中に含まれる物質の濃度を測定する血中物質濃度測定装置であって、
2.5μm〜12μmの範囲から選択された特定の波長をもち前記物質に吸収される第1のレーザ光を発振するレーザ発振器と、
前記第1のレーザ光を前記生体に導き、かつ前記第1のレーザ光によって発生した前記生体からの第1の拡散反射光を導く導光部と、
前記第1の拡散反射光の光強度を検出する光検出部と、
を具備し、
前記導光部には、前記第1のレーザ光を生体に導く入射側導波路と、前記第1の拡散反射光を前記光検出部に導く出射側導波路とが貫通孔として共通の前記導光部に形成されており、
前記光検出部が検出した前記光強度を用いて前記物質の濃度を算出することを特徴とする血中物質濃度測定装置。
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| JP2015009504 | 2015-01-21 | ||
| JP2015009504 | 2015-01-21 |
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| JP2016570633A Division JP6415606B2 (ja) | 2015-01-21 | 2016-01-19 | 血中物質濃度測定装置及び血中物質濃度測定方法 |
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| JP2018187388A Pending JP2018199080A (ja) | 2015-01-21 | 2018-10-02 | 血中物質濃度測定装置及び導光部 |
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| US (2) | US10806385B2 (ja) |
| EP (1) | EP3248544B1 (ja) |
| JP (3) | JP6415606B2 (ja) |
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Cited By (1)
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| JP2022027470A (ja) * | 2020-07-30 | 2022-02-10 | 株式会社リコー | 測定装置 |
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| JP2022027470A (ja) * | 2020-07-30 | 2022-02-10 | 株式会社リコー | 測定装置 |
| JP7729075B2 (ja) | 2020-07-30 | 2025-08-26 | 株式会社リコー | 測定装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US10806385B2 (en) | 2020-10-20 |
| US11412963B2 (en) | 2022-08-16 |
| JP2021037321A (ja) | 2021-03-11 |
| US20180000386A1 (en) | 2018-01-04 |
| EP3248544A1 (en) | 2017-11-29 |
| CN107427266B (zh) | 2021-12-03 |
| JPWO2016117520A1 (ja) | 2017-10-26 |
| CN107427266A (zh) | 2017-12-01 |
| WO2016117520A1 (ja) | 2016-07-28 |
| EP3248544A4 (en) | 2018-09-05 |
| JP6415606B2 (ja) | 2018-10-31 |
| US20210038125A1 (en) | 2021-02-11 |
| HK1243902A1 (zh) | 2018-07-27 |
| EP3248544B1 (en) | 2021-12-08 |
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