JP6653787B2 - 光学的バイタルサインセンサ - Google Patents
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- JP6653787B2 JP6653787B2 JP2019516509A JP2019516509A JP6653787B2 JP 6653787 B2 JP6653787 B2 JP 6653787B2 JP 2019516509 A JP2019516509 A JP 2019516509A JP 2019516509 A JP2019516509 A JP 2019516509A JP 6653787 B2 JP6653787 B2 JP 6653787B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
- A61B5/0261—Measuring blood flow using optical means, e.g. infrared light
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
- A61B5/0295—Measuring blood flow using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—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
- 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
- A61B5/14552—Details of sensors specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
- A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0204—Operational features of power management
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61B2562/0238—Optical sensor arrangements for performing transmission measurements on body tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/681—Wristwatch-type devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6824—Arm or wrist
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Public Health (AREA)
- Pathology (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
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- Psychiatry (AREA)
- Hematology (AREA)
- Power Engineering (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Description
Claims (6)
- ユーザのバイタルサインを測定又は決定する光学的バイタルサインセンサであって、
前記ユーザの皮膚に向けられる光を生成する光源と、光を検出する光検出器ユニットとを持つフォトプレチスモグラフィPPGセンサであって、前記光が、前記ユーザの皮膚内又は皮膚から放出された光の反射を示し、前記PPGセンサの出力信号は、サンプリングレート、振幅、1サンプル当たりのパルス数、及びデューティサイクルを持つ、フォトプレチスモグラフィPPGセンサと、
前記PPGセンサの出力に結合され、第1のサンプル周波数及びサンプル当たりの第1のパルス数を持つ前記PPGセンサからの出力信号を、第2のサンプル周波数及びサンプル当たりの第2のパルス数を持つ出力信号へと変換し、サンプル周波数又はサンプルあたりのパルス数における変化を中和又は均等化する前処理ユニットと、
前記前処理ユニットに結合され、前処理ユニットの出力信号に基づき、少なくとも1つの処理アルゴリズムを実行する処理ユニットと、
前記サンプリングレート及び/又は前記サンプル当たりのパルス数を適合させることにより、前記PPGセンサの動作を制御するセンサ制御ユニットとを有する、光学的バイタルサインセンサ。 - 前記前処理ユニットが、
サンプルあたりのパルス数を前記センサ制御ユニットから受信し、前記PPGセンサの出力信号をサンプルにおけるパルス数nに反比例する係数で乗算するスケーラと、
前記PPGセンサの出力信号のサンプリングレートを、前記センサ制御ユニットから受け取る所望のサンプリングレートに適合させるダウンサンプラとを有する、請求項1に記載の光学的バイタルサインセンサ。 - 前記センサ制御ユニットが、前記処理ユニットから少なくとも1つの信号対雑音比の要求を受信し、前記要求される信号対雑音比を達成するため、サンプリングレート及び/又はサンプル当たりのパルス数を決定する、請求項1又は2に記載の光学的バイタルサインセンサ。
- 前記センサ制御ユニットが、前記光源の出力パワー及び/又は前記PPGセンサの受信機利得を適合させることにより前記PPGセンサの動作を制御する、請求項1に記載の光学的バイタルサインセンサ。
- ユーザのバイタルサインを測定又は決定する光学的バイタルサインセンサを用いて、ユーザのバイタルサインを測定又は決定する方法において、
前記光学的バイタルサインセンサが、接触面と、ユーザの皮膚に向けられる光を生成する少なくとも1つの光源と、ユーザの皮膚内又は皮膚から放射される光の反射を示す光を検出する少なくとも1つの光検出器ユニットとを持つPPGセンサであって、前記PPGセンサの出力信号は、サンプリングレート、振幅、1サンプル当たりのパルス数、及びデューティサイクルを持つ、PPGセンサであり、
前記少なくとも1つの光源から前記ユーザの皮膚に向かって光を放射し、前記少なくとも1つの光検出器により反射光を検出するステップと、
前処理ユニットにより、第1のサンプル周波数及びサンプル当たりの第1のパルス数を持つ前記PPGセンサからの出力信号を、第2のサンプル周波数及びサンプル当たりの第2のパルス数を持つ出力信号に変換し、サンプル周波数又は前記パルス数における変化を中和又は等化するステップと、
前処理ユニットの出力信号に基づき、少なくとも1つの処理アルゴリズムを処理するステップと、
前記サンプリングレート及び/又は前記サンプル当たりのパルス数を適合させることにより、前記PPGセンサの動作を制御するステップとを有する、方法。 - 請求項1に記載の光学的バイタルサインセンサに請求項5に記載のユーザのバイタルサインを測定又は決定するステップを実行させるためのコンピュータプログラムコード手段を含むコンピュータプログラム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16191324 | 2016-09-29 | ||
EP16191324.9 | 2016-09-29 | ||
PCT/EP2017/074918 WO2018060508A1 (en) | 2016-09-29 | 2017-09-29 | Optical vital signs sensor |
Publications (2)
Publication Number | Publication Date |
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JP2019528954A JP2019528954A (ja) | 2019-10-17 |
JP6653787B2 true JP6653787B2 (ja) | 2020-02-26 |
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JP2019516509A Active JP6653787B2 (ja) | 2016-09-29 | 2017-09-29 | 光学的バイタルサインセンサ |
Country Status (5)
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US (1) | US11986275B2 (ja) |
EP (1) | EP3518755B1 (ja) |
JP (1) | JP6653787B2 (ja) |
CN (1) | CN109788919B (ja) |
WO (1) | WO2018060508A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2021102892A1 (zh) * | 2019-11-29 | 2021-06-03 | 深圳市汇顶科技股份有限公司 | Ppg电路、生物特征检测装置和生物特征检测方法 |
CN114052696B (zh) * | 2021-11-19 | 2024-03-26 | 恒玄科技(上海)股份有限公司 | 一种ppg信号检测方法、组件及可穿戴设备 |
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-
2017
- 2017-09-29 JP JP2019516509A patent/JP6653787B2/ja active Active
- 2017-09-29 US US16/337,218 patent/US11986275B2/en active Active
- 2017-09-29 EP EP17772740.1A patent/EP3518755B1/en active Active
- 2017-09-29 WO PCT/EP2017/074918 patent/WO2018060508A1/en unknown
- 2017-09-29 CN CN201780060743.XA patent/CN109788919B/zh active Active
Also Published As
Publication number | Publication date |
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WO2018060508A1 (en) | 2018-04-05 |
CN109788919B (zh) | 2022-03-22 |
US20190290146A1 (en) | 2019-09-26 |
JP2019528954A (ja) | 2019-10-17 |
EP3518755B1 (en) | 2020-05-13 |
US11986275B2 (en) | 2024-05-21 |
EP3518755A1 (en) | 2019-08-07 |
CN109788919A (zh) | 2019-05-21 |
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