JP7417968B2 - 検出装置 - Google Patents
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- JP7417968B2 JP7417968B2 JP2023015962A JP2023015962A JP7417968B2 JP 7417968 B2 JP7417968 B2 JP 7417968B2 JP 2023015962 A JP2023015962 A JP 2023015962A JP 2023015962 A JP2023015962 A JP 2023015962A JP 7417968 B2 JP7417968 B2 JP 7417968B2
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
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- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
- A61B5/02125—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics of pulse wave propagation time
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- A61B5/024—Measuring pulse rate or heart rate
- A61B5/02416—Measuring pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
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- Hematology (AREA)
- Vascular Medicine (AREA)
- Signal Processing (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Artificial Intelligence (AREA)
- Psychiatry (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Description
γ=α/(1000/β)…(1)
10 センサ部
11 検出制御部
21 センサ基材
22 TFT層
23 絶縁層
24 保護膜
31 光電変換層
34 アノード電極
35 カソード電極
48 検出回路
50 出力処理部
61 第1光源
62 第2光源
AA 検出領域
GCL ゲート線
PAA 部分検出領域
PD フォトダイオード
SGL 信号線
Claims (8)
- 第1光センサと、
前記第1光センサと所定距離をおいて配置された第2光センサと、
血管を含む生体組織と対向する前記第1光センサ及び前記第2光センサに検出される光を発する光源と、を有し、
前記第1光センサの出力の時系列変化と、前記第2光センサの出力の時系列変化と、前記所定距離と、に基づいて前記血管の脈波伝搬速度を算出し、
前記第1光センサをリセットする第1リセットタイミングと前記第2光センサをリセットする第2リセットタイミングは異なり、
前記第1光センサが前記光を検出する期間と前記第2光センサが前記光を検出する期間との時間的なずれを前記第1リセットタイミングと前記第2リセットタイミングの時間的なずれに基づいて補正して前記脈波伝搬速度を算出する、
検出装置。 - 第1光センサと、
前記第1光センサと所定距離をおいて配置された第2光センサと、
血管を含む生体組織と対向する前記第1光センサ及び前記第2光センサに検出される光を発する光源と、を有し、
前記第1光センサからの出力を取得する第1取得タイミングと前記第2光センサからの出力を取得する第2取得タイミングは異なり、
前記第1光センサの出力の時系列変化と、前記第2光センサの出力の時系列変化と、前記第1取得タイミングと、前記第2取得タイミングと、前記所定距離とに基づいて前記血管の脈波伝搬速度を算出する、
検出装置。 - 面状に配列された3つ以上のセンサを含む複数のセンサと、
血管を含む生体組織と対向する前記複数のセンサに検出される光を発する光源と、を備え、
前記複数のセンサの出力に基づいて平面視状の血管パターンを取得し、
前記血管パターン上の異なる2点間の血管の長さである所定距離を取得し、
前記複数のセンサの中から、前記血管パターン上の異なる2点の脈波の検出が可能な第1光センサ及び第2光センサを選定し、前記第1光センサの出力の時系列変化と、前記第2光センサの出力の時系列変化と、前記所定距離とに基づいて前記血管の脈波伝搬速度を算出する、
検出装置。 - 前記第1光センサ及び前記第2光センサをリセットする期間と、前記光源を点灯させる期間と、前記第1光センサからの出力及び前記第2光センサの出力を取得する期間とがそれぞれ独立している、
請求項2又は3に記載の検出装置。 - 前記第1光センサ及び前記第2光センサをリセットする期間ならびに前記第1光センサからの出力及び前記第2光センサの出力を取得する期間に対して前記光源を点灯させる期間が重複している、
請求項2又は3に記載の検出装置。 - 前記第1光センサからの出力を取得する第1取得タイミングと前記第2光センサからの出力を取得する第2取得タイミングは異なり、
前記第1取得タイミングと前記第2取得タイミングの時間的なずれに基づいて、前記第1光センサの出力の時系列変化と前記第2光センサの出力の時系列変化との時間的ずれを補正して前記脈波伝搬速度を算出する、
請求項3に記載の検出装置。 - 前記第1光センサ及び前記第2光センサは、それぞれ複数の光センサを含む、
請求項2又は3に記載の検出装置。 - 前記第1光センサの出力の時系列変化及び前記第2光センサの出力の時系列変化における出力の振幅に基づいて脈の発生を判定する、
請求項2又は3に記載の検出装置。
Applications Claiming Priority (4)
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JP2019078925 | 2019-04-17 | ||
JP2019078925 | 2019-04-17 | ||
PCT/JP2020/016503 WO2020213620A1 (ja) | 2019-04-17 | 2020-04-15 | 検出装置 |
JP2021514182A JP7229492B2 (ja) | 2019-04-17 | 2020-04-15 | 検出装置 |
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JP7417968B2 true JP7417968B2 (ja) | 2024-01-19 |
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US (1) | US20220031182A1 (ja) |
JP (2) | JP7229492B2 (ja) |
CN (1) | CN113711267B (ja) |
DE (1) | DE112020001282T5 (ja) |
WO (1) | WO2020213620A1 (ja) |
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US20230020039A1 (en) * | 2021-07-19 | 2023-01-19 | Google Llc | Biometric detection using photodetector array |
WO2024172644A1 (en) | 2022-02-17 | 2024-08-22 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Biomedical imaging device |
Citations (7)
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