JP2016077735A - 電子機器及び制御方法 - Google Patents
電子機器及び制御方法 Download PDFInfo
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- 230000017531 blood circulation Effects 0.000 claims abstract description 175
- 239000008280 blood Substances 0.000 claims abstract description 88
- 210000004369 blood Anatomy 0.000 claims abstract description 88
- 238000001228 spectrum Methods 0.000 claims abstract description 87
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000005259 measurement Methods 0.000 description 52
- 238000012545 processing Methods 0.000 description 43
- 238000010586 diagram Methods 0.000 description 24
- 238000011156 evaluation Methods 0.000 description 19
- 230000006870 function Effects 0.000 description 14
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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
- A61B5/02028—Determining haemodynamic parameters not otherwise provided for, e.g. cardiac contractility or left ventricular ejection fraction
- A61B5/02035—Determining blood viscosity
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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
- A61B5/0285—Measuring or recording phase velocity of blood waves
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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
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7271—Specific aspects of physiological measurement analysis
- A61B5/7278—Artificial waveform generation or derivation, e.g. synthesising signals from measured signals
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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
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood flow
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- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
【解決手段】電子機器100は、生体内部を流れる血液に関する情報をドップラシフトに基づく血流データとして取得する血流データ取得部と、血流データに基づいて、血流データのパワースペクトルを算出するパワースペクトル算出部と、パワースペクトルから概形指数を算出する概形指数算出部とを有する。電子機器100は、概形指数に基づいて、血液の粘度を推定する推定部をさらに有し、推定部は、血液の粘度の推定結果を表示部140に表示する。
【選択図】図4
Description
図1及び図2は、実施形態に係る電子機器100の外観構成の例を示す図である。図1は、電子機器100が有する第1面を表わし、図2は、電子機器100が有する第2面を表わす。
110 測定部
110a 血流センサ
110b 圧力センサ
120 記憶部
120a 圧力判定プログラム
120b パワースペクトル算出プログラム
120c 概形指数算出プログラム
120d 血流量算出プログラム
120e 血流関連情報算出プログラム
120f 血液粘度推定プログラム
120g 血液粘度評価用データ
130 処理部
130a CPU
130b メモリ
140 表示部
Claims (7)
- 生体内部を流れる血液に関する情報をドップラシフトに基づく血流データとして取得する血流データ取得部と、
前記血流データに基づいて、当該血流データのパワースペクトルを算出するパワースペクトル算出部と、
前記パワースペクトルから概形指数を算出する概形指数算出部と
を有することを特徴とする電子機器。 - 前記概形指数算出部は、複数の異なる周波数のそれぞれに対応する前記パワースペクトルの傾きを前記概形指数としてそれぞれ算出する請求項1に記載の電子機器。
- 前記概形指数算出部は、複数の異なる周波数のそれぞれに対応するパワーを前記パワースペクトルからそれぞれ導出し、導出した各パワー間の差を前記概形指数として算出する請求項1に記載の電子機器。
- 前記血流データ及び前記パワースペクトルに基づいて血流量を算出する血流量算出部をさらに有し、
前記概形指数算出部は、前記血流量の極値に対応する前記パワースペクトルに基づいて前記概形指数を算出する請求項1〜3のいずれか一つに記載の電子機器。 - 前記概形指数に基づいて、前記血液の粘度を推定する推定部をさらに有し、
前記推定部は、前記血液の粘度の推定結果を表示部に表示する請求項1〜4のいずれか一つに記載の電子機器。 - 前記パワースペクトルの平均周波数及び周波数分散と、前記血流量の平均値と、前記血流量に対応する振幅と、前記血流量に対応する脈拍とを算出する血流関連情報算出部と、
前記概形指数、前記パワースペクトルの平均周波数及び周波数分散、前記血流量の平均値、前記血流量に対応する振幅、前記血流量に対応する脈拍の中の少なくとも一つに基づいて、前記血液の粘度を推定する推定部と
をさらに有し、
前記推定部は、前記血液の粘度の推定結果を表示部に表示する請求項4に記載の電子機器。 - 電子機器により実行される制御方法であって、
生体内部を流れる血液に関する情報をドップラシフトに基づく血流データとして取得するステップと、
前記血流データに基づいて、当該血流データのパワースペクトルを算出するステップと、
複数の異なる周波数のそれぞれに対応する前記パワースペクトルの傾きを、概形指数としてそれぞれ算出するステップと
を含む制御方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2014214667A JP6066974B2 (ja) | 2014-10-21 | 2014-10-21 | 電子機器及び制御方法 |
US15/520,060 US20170319081A1 (en) | 2014-10-21 | 2015-10-20 | Electronic device and control method |
PCT/JP2015/079619 WO2016063888A1 (ja) | 2014-10-21 | 2015-10-20 | 電子機器及び制御方法 |
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JP2014214667A JP6066974B2 (ja) | 2014-10-21 | 2014-10-21 | 電子機器及び制御方法 |
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JP2016077735A true JP2016077735A (ja) | 2016-05-16 |
JP6066974B2 JP6066974B2 (ja) | 2017-01-25 |
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US (1) | US20170319081A1 (ja) |
JP (1) | JP6066974B2 (ja) |
WO (1) | WO2016063888A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2017208645A1 (ja) * | 2016-05-31 | 2019-03-28 | 国立大学法人九州大学 | 流量測定装置、流量測定方法、圧力測定装置、及び圧力測定方法 |
JP2019130092A (ja) * | 2018-01-31 | 2019-08-08 | セイコーエプソン株式会社 | 生体情報測定装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20210386302A1 (en) * | 2018-12-20 | 2021-12-16 | Nippon Telegraph And Telephone Corporation | Optical Sensor Probe and Method for Measuring Blood Flow Rate, Blood Viscosity and Vascular Elastic Modulus Using the Optical Sensor Probe |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04193158A (ja) * | 1990-11-27 | 1992-07-13 | Kowa Co | 血流測定装置 |
JP2003250767A (ja) * | 2002-03-05 | 2003-09-09 | Seiko Instruments Inc | 循環動態測定装置 |
WO2013153664A1 (ja) * | 2012-04-13 | 2013-10-17 | パイオニア株式会社 | 流体評価装置及び方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013157142A1 (ja) * | 2012-04-20 | 2013-10-24 | パイオニア株式会社 | 血圧推定装置及び方法 |
-
2014
- 2014-10-21 JP JP2014214667A patent/JP6066974B2/ja active Active
-
2015
- 2015-10-20 US US15/520,060 patent/US20170319081A1/en not_active Abandoned
- 2015-10-20 WO PCT/JP2015/079619 patent/WO2016063888A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04193158A (ja) * | 1990-11-27 | 1992-07-13 | Kowa Co | 血流測定装置 |
JP2003250767A (ja) * | 2002-03-05 | 2003-09-09 | Seiko Instruments Inc | 循環動態測定装置 |
WO2013153664A1 (ja) * | 2012-04-13 | 2013-10-17 | パイオニア株式会社 | 流体評価装置及び方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2017208645A1 (ja) * | 2016-05-31 | 2019-03-28 | 国立大学法人九州大学 | 流量測定装置、流量測定方法、圧力測定装置、及び圧力測定方法 |
JP7103644B2 (ja) | 2016-05-31 | 2022-07-20 | 国立大学法人九州大学 | 流量測定装置、流量測定方法、圧力測定装置、及び圧力測定方法 |
US11419512B2 (en) | 2016-05-31 | 2022-08-23 | Kyushu University, National University Corporation | Flow volume measuring device, flow volume measuring method, pressure measuring device, and pressure measuring method |
JP2019130092A (ja) * | 2018-01-31 | 2019-08-08 | セイコーエプソン株式会社 | 生体情報測定装置 |
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Publication number | Publication date |
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JP6066974B2 (ja) | 2017-01-25 |
WO2016063888A1 (ja) | 2016-04-28 |
US20170319081A1 (en) | 2017-11-09 |
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