JP7274803B2 - 非接触血管解析装置 - Google Patents
非接触血管解析装置 Download PDFInfo
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- JP7274803B2 JP7274803B2 JP2022560749A JP2022560749A JP7274803B2 JP 7274803 B2 JP7274803 B2 JP 7274803B2 JP 2022560749 A JP2022560749 A JP 2022560749A JP 2022560749 A JP2022560749 A JP 2022560749A JP 7274803 B2 JP7274803 B2 JP 7274803B2
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- blood vessel
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- analysis device
- contact blood
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- 210000004204 blood vessel Anatomy 0.000 title claims description 54
- 230000010349 pulsation Effects 0.000 claims description 17
- 238000001228 spectrum Methods 0.000 claims description 13
- 210000003462 vein Anatomy 0.000 claims description 8
- 230000003872 anastomosis Effects 0.000 claims description 6
- 210000001367 artery Anatomy 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 5
- 230000002123 temporal effect Effects 0.000 claims description 5
- 230000008321 arterial blood flow Effects 0.000 claims description 3
- 210000004369 blood Anatomy 0.000 description 6
- 239000008280 blood Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 210000003363 arteriovenous anastomosis Anatomy 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 4
- 230000004087 circulation Effects 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 239000002473 artificial blood Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013135 deep learning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 210000003743 erythrocyte Anatomy 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 210000004026 tunica intima Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
-
- 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
- A61B5/02444—Details of sensor
-
- 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
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H30/00—ICT specially adapted for the handling or processing of medical images
- G16H30/40—ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2576/00—Medical imaging apparatus involving image processing or analysis
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4887—Locating particular structures in or on the body
- A61B5/489—Blood vessels
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Physiology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Epidemiology (AREA)
- Primary Health Care (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Description
2 画像取得器
2im 画像
3 画像処理器
3a プログラムメモリ
3b CPU
3c ワークメモリ
3d コンピュータシステムのその他の部分
3s 表示データ
4 光照射器
5 遮光箱
6 表示装置
fp 画像の明度のパワースペクトルにおいてパワーが最大値を示す周波数
PU 拍動による大きく緩やかな変化
pu 画像の明度のパワースペクトルにおけるパワーの最大値近傍領域(基本波)
pu’ 高調波
TH 小さなスリルによる急な変化
th、th’ スリル
Claims (6)
- 血管の動画又は連続した静止画の画像を取得する画像取得器と、
該画像の明度及び/又は色度から導出される指標の時間変化から、拍動及び動脈と静脈の吻合により動脈の血液が静脈に流し込まれる際に生じる乱流が血管壁をたたくために生じる振動であるスリルを検出する画像処理器と、を備える非接触血管解析装置。 - 請求項1に記載の非接触血管解析装置において、
前記血管に光を当てる光照射器を更に備える非接触血管解析装置。 - 請求項1又は2に記載の非接触血管解析装置において、
前記画像の明度及び/又は色度から導出される指標は、前記画像の明度又は輝度である非接触血管解析装置。 - 請求項3に記載の非接触血管解析装置において、
前記画像処理器は、前記画像の明度又は輝度のパワースペクトルにおいて最大値近傍領域を拍動として検出する非接触血管解析装置。 - 請求項4に記載の非接触血管解析装置において、
前記画像処理器は、前記画像の明度又は輝度のパワースペクトルの最大値を示す周波数を心拍数とする非接触血管解析装置。 - 請求項3~5のいずれか1項に記載の非接触血管解析装置において、
前記画像処理器は、前記画像の明度又は輝度のパワースペクトルにおいて周波数が高くなるにつれて極大値が減少してから後、一旦上がったときの極大値近傍領域をスリルとして検出する非接触血管解析装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020184732 | 2020-11-04 | ||
JP2020184732 | 2020-11-04 | ||
PCT/JP2021/039942 WO2022097573A1 (ja) | 2020-11-04 | 2021-10-29 | 非接触血管解析装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2022097573A1 JPWO2022097573A1 (ja) | 2022-05-12 |
JP7274803B2 true JP7274803B2 (ja) | 2023-05-17 |
Family
ID=81457916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022560749A Active JP7274803B2 (ja) | 2020-11-04 | 2021-10-29 | 非接触血管解析装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230165476A1 (ja) |
EP (1) | EP4159119A4 (ja) |
JP (1) | JP7274803B2 (ja) |
CN (1) | CN115697193A (ja) |
WO (1) | WO2022097573A1 (ja) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005328941A (ja) | 2004-05-19 | 2005-12-02 | Nikkiso Co Ltd | シャント音取得方法及びその装置、該シャント音を利用した脈拍測定方法及びその装置 |
JP3159768U (ja) | 2009-03-19 | 2010-06-03 | 宗龍 李 | 止血バンド |
WO2014038077A1 (ja) | 2012-09-07 | 2014-03-13 | 富士通株式会社 | 脈波検出方法、脈波検出装置及び脈波検出プログラム |
WO2016207951A1 (ja) | 2015-06-22 | 2016-12-29 | パイオニア株式会社 | シャント音解析装置、シャント音解析方法、コンピュータプログラム及び記録媒体 |
WO2018179150A1 (ja) | 2017-03-29 | 2018-10-04 | 日本電気株式会社 | 心拍推定装置 |
WO2019188768A1 (ja) | 2018-03-29 | 2019-10-03 | パイオニア株式会社 | シャント音解析装置及び方法、コンピュータプログラム並びに記憶媒体 |
JP2019170407A (ja) | 2018-03-26 | 2019-10-10 | 国立大学法人東北大学 | 信号制御装置、信号制御プログラム、及び信号制御方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090287076A1 (en) * | 2007-12-18 | 2009-11-19 | Boyden Edward S | System, devices, and methods for detecting occlusions in a biological subject |
EP3047796B1 (en) * | 2013-09-20 | 2020-11-04 | National University Corporation Asahikawa Medical University | Method and system for image processing of intravascular hemodynamics |
CN106236060B (zh) * | 2015-06-04 | 2021-04-09 | 松下知识产权经营株式会社 | 生物体信息检测装置 |
-
2021
- 2021-10-29 EP EP21889126.5A patent/EP4159119A4/en active Pending
- 2021-10-29 JP JP2022560749A patent/JP7274803B2/ja active Active
- 2021-10-29 WO PCT/JP2021/039942 patent/WO2022097573A1/ja unknown
- 2021-10-29 CN CN202180035779.9A patent/CN115697193A/zh active Pending
- 2021-10-29 US US17/919,062 patent/US20230165476A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005328941A (ja) | 2004-05-19 | 2005-12-02 | Nikkiso Co Ltd | シャント音取得方法及びその装置、該シャント音を利用した脈拍測定方法及びその装置 |
JP3159768U (ja) | 2009-03-19 | 2010-06-03 | 宗龍 李 | 止血バンド |
WO2014038077A1 (ja) | 2012-09-07 | 2014-03-13 | 富士通株式会社 | 脈波検出方法、脈波検出装置及び脈波検出プログラム |
WO2016207951A1 (ja) | 2015-06-22 | 2016-12-29 | パイオニア株式会社 | シャント音解析装置、シャント音解析方法、コンピュータプログラム及び記録媒体 |
WO2018179150A1 (ja) | 2017-03-29 | 2018-10-04 | 日本電気株式会社 | 心拍推定装置 |
JP2019170407A (ja) | 2018-03-26 | 2019-10-10 | 国立大学法人東北大学 | 信号制御装置、信号制御プログラム、及び信号制御方法 |
WO2019188768A1 (ja) | 2018-03-29 | 2019-10-03 | パイオニア株式会社 | シャント音解析装置及び方法、コンピュータプログラム並びに記憶媒体 |
Also Published As
Publication number | Publication date |
---|---|
EP4159119A1 (en) | 2023-04-05 |
CN115697193A (zh) | 2023-02-03 |
EP4159119A4 (en) | 2023-11-22 |
JPWO2022097573A1 (ja) | 2022-05-12 |
US20230165476A1 (en) | 2023-06-01 |
WO2022097573A1 (ja) | 2022-05-12 |
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