JP2017520291A - 流れる血液の特性の非侵襲的光学測定方法 - Google Patents
流れる血液の特性の非侵襲的光学測定方法 Download PDFInfo
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- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
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- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
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- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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Abstract
Description
血管をマーキングするために、身体が、一つの超音波周波数(fUS)の超音波ビームを照射され、
身体が、その血管と共に少なくとも一つの光波長の光を照射されて、その後方散乱光が検出器で検出され、
その血管外において身体から後方散乱された光成分が、超音波ビームの超音波周波数(fUS)と一致する周波数(fMG)で変調され、
その血管内において後方散乱された光成分が、流れる血液によるドップラー効果のために、そのドップラーシフト(fD)だけシフトされた周波数(fMG)で変調され、
評価ユニットを用いて、そのシフトされた周波数(fMG)で変調された信号成分が、検出器で測定された検出器信号から抽出され、次に、この信号成分から、血液の特性、例えば、血液成分の濃度、さもなければ血液の温度が計測される、
方法を提示する。
fMB=fUS±fD
fDecho=(2vB・fUS・cosΦ)/vUS
fD=(vB・fUS・cosΦ)/vUS
Claims (6)
- 例えば、血液成分の濃度を計測するために、身体内部の血管内を流れる血液の特性を生体内で非侵襲的に光学測定する方法であって、
血管をマーキングするために、身体が、一つの超音波周波数(fUS)の超音波ビームを照射され、
身体が、その血管と共に少なくとも一つの光波長の光を照射されて、その後方散乱光が検出器で検出され、
その血管外において身体から後方散乱された光成分が、超音波ビームの超音波周波数(fUS)と一致する周波数(fMG)で変調され、
その血管内において後方散乱された光成分が、流れる血液によるドップラー効果のために、超音波ビームの周波数(fUS)に対して、そのドップラーシフト(fD)だけシフトされた周波数(fMG)で変調され、
評価ユニットを用いて、そのシフトされた周波数(fMG)で変調された信号成分が、検出器で測定された検出器信号から抽出される、
方法。 - 身体が、所定のパルス長及び繰返し時間を有するパルス状の超音波ビームを照射され、
遅延時間だけ時間的にシフトされた、超音波ビームのパルス長と一致する時間スロット内において、光強度が検出器で測定される、
請求項1に記載の方法。 - 該光学測定の前に、先ず血管が、身体から反射された超音波エコーの(音響的な)分析によって位置特定される、
請求項1又は2に記載の方法。 - 光を照射しない形態での基準測定が実施され、
この基準測定が、該評価時に考慮される、
請求項1から3までのいずれか一つに記載の方法。 - 該光が少なくとも一つのレーザー光源を用いて発生される、
請求項1から4までのいずれか一つに記載の方法。 - 例えば、複数のレーザー光源を用いて、複数の異なる光波長の光が照射され、
該照射及び測定が、時間的に順番に、或いは同時に行なわれる、
請求項1から5までのいずれか一つに記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102014107261.8 | 2014-05-22 | ||
DE102014107261.8A DE102014107261A1 (de) | 2014-05-22 | 2014-05-22 | Verfahren zur nichtinvasiven optischen Messung von Eigenschaften von fließendem Blut |
PCT/EP2015/061005 WO2015177156A1 (de) | 2014-05-22 | 2015-05-19 | VERFAHREN ZUR NICHTINVASIVEN OPTISCHEN MESSUNG VON EIGENSCHAFTEN VON FLIEßENDEM BLUT |
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JP2017520291A true JP2017520291A (ja) | 2017-07-27 |
JP6749250B2 JP6749250B2 (ja) | 2020-09-02 |
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US (1) | US11412934B2 (ja) |
EP (1) | EP3145412A1 (ja) |
JP (1) | JP6749250B2 (ja) |
CN (1) | CN106456129B (ja) |
DE (1) | DE102014107261A1 (ja) |
RU (1) | RU2703894C2 (ja) |
WO (1) | WO2015177156A1 (ja) |
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WO2017108864A1 (en) * | 2015-12-21 | 2017-06-29 | Koninklijke Philips N.V. | A system and a method for estimation of arterial blood gas |
EP3375352A1 (en) | 2017-03-13 | 2018-09-19 | Koninklijke Philips N.V. | Device, system and method for determining a tissue characteristic of a subject |
DE102018124531A1 (de) | 2018-10-04 | 2020-04-09 | Nirlus Engineering Ag | Verfahren und Vorrichtung zur nichtinvasiven optischen Messung von Eigenschaften von lebendem Gewebe |
DE102018124537A1 (de) * | 2018-10-04 | 2020-04-09 | Nirlus Engineering Ag | Verfahren und Vorrichtung zur nichtinvasiven optischen Messung von Eigenschaften von lebendem Gewebe |
KR20210104409A (ko) | 2020-02-17 | 2021-08-25 | 삼성전자주식회사 | 신호 검출 센서, 대상체의 성분 분석 장치 및 방법 |
CN111693465B (zh) * | 2020-07-15 | 2021-06-22 | 南京大学 | 一种同时获得光吸收和光散射双对比度的显微成像法 |
DE102020134911A1 (de) | 2020-12-23 | 2022-06-23 | Nirlus Engineering Ag | Verfahren und Vorrichtung zur nicht-invasiven optischen In-vivo-Bestimmung der Glukosekonzentration |
CN116773664A (zh) * | 2023-06-15 | 2023-09-19 | 中国科学院苏州生物医学工程技术研究所 | 一种仿血体模性能检测方法以及装置 |
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JPH04218140A (ja) * | 1990-02-16 | 1992-08-07 | Boc Group Inc:The | 生物医学用光ファイバープローブ |
US20060058595A1 (en) * | 2003-03-13 | 2006-03-16 | Vera Herrmann | Blood optode |
JP2008170363A (ja) * | 2007-01-15 | 2008-07-24 | Olympus Medical Systems Corp | 被検体情報分析装置、内視鏡装置及び被検体情報分析方法 |
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US11412934B2 (en) | 2022-08-16 |
CN106456129B (zh) | 2020-06-23 |
RU2703894C2 (ru) | 2019-10-22 |
WO2015177156A1 (de) | 2015-11-26 |
CN106456129A (zh) | 2017-02-22 |
JP6749250B2 (ja) | 2020-09-02 |
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