JP2022514813A - 動脈の脈波伝播速度を測定するシステム - Google Patents
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Abstract
Description
Claims (13)
- 脈波伝播速度判定システム(4)であって、以下を備え:
-動脈(12、13、14、15)の近位血圧信号を受信し、さらにその動脈の遠位血圧信号を受信するための受信インターフェース(41);
-以下のように構成された処理装置(42);
-前記近位血圧信号の拡張期血圧と収縮期血圧の間の近位立ち上がり点を決定し;
-前記近位立ち上がり点の前に近位圧力ピークを決定し;
-前記遠位血圧信号の拡張期血圧と収縮期血圧の間の遠位立ち上がり点を決定する;
処理装置(42)がさらに以下の通り構成されている:
-前記遠位立ち上がり点の前に遠位圧力ピークを決定し、前記遠位圧力ピークが前記近位圧力ピークよりも位相が進んでいることを決定し;
-近位圧力ピークに対する遠位圧力ピークの先行する位相(l'avance de phase)の関数として、後退脈波の伝播速度を決定する、
システム。 - 前記受信インターフェース(41)が、近位血圧信号及び遠位血圧信号の時間基準を受信するように構成されており、前記処理装置(42)が、遠位圧力ピークと近位圧力ピークとの間の時間差の関数として後退脈波の伝播速度を決定するように構成されている、
請求項1に記載のシステム。 - 前記受信インターフェース(41)が、前記動脈に接続された心臓の等容性心収縮及び大動脈弁開度から選択されるタイミングイベントの時間的指標を受信するように構成されている、
請求項1又は2に記載のシステム。 - 前記受信インターフェース(41)が、前記動脈に接続された心臓からの心電図信号、音声信号、又は画像信号を受信するように構成されていることを特徴とする、
請求項1~3のいずれかに記載のシステム。 - 前記受信インターフェース(41)は、圧力センサー(31,32)の位置を受信するようにさらに構成されており、処理装置(42)は、後退波が消滅する圧力センサーの基準位置を決定するように構成されていることを特徴とする、
請求項1~4のいずれかに記載のシステム。 - 前記処理装置(42)が、遠位圧力ピークの大きさを決定するようにさらに構成されている、
請求項1~5のいずれかに記載のシステム。 - 処理装置(42)は、遠位圧力スパイクの振幅が所定の閾値を超えたときに、遠位圧力スパイクの存在を判定することを特徴とする、
請求項6に記載のシステム。 - 前記処理装置が、遠位圧力ピークの振幅と遠位立ち上がり点との比を計算するようにさらに構成されている、請求項6又は7に記載のシステム。
- 前記処理装置(42)が以下のように構成されている:
-近位血圧信号と遠位血圧信号のそれぞれの拡張期圧力低下フェーズを特定し;
-識別された拡張期圧力低下フェーズと、遠位及び近位圧力立ち上がり点のそれぞれの接線との間の交点を決定することにより、遠位及び近位圧力立ち上がり点の開始を識別する、
請求項1~8のいずれかに記載のシステム。 - 前記処理装置(42)が以下のように構成されている:
-近位血圧信号と遠位血圧信号のそれぞれの拡張期圧力低下フェーズを特定すること。
-識別された拡張期圧力降下相と、遠位及び近位圧力ピークのそれぞれの接線との間の交点を決定することにより、遠位及び近位圧力ピークの開始を識別すること
請求項1~9のいずれかに記載のシステム。 - 前記受信インターフェース(41)が、近位血圧測定位置と遠位血圧測定位置との間の距離の値を取得するように構成されており、前記処理装置(42)が、取得された距離の値に基づいて前記後退脈波の伝播速度を決定するように構成されていることを特徴とする、
請求項1~10のいずれかに記載のシステム。 - 細長いFFRガイドワイヤ(3)をさらに備え、ガイドワイヤ(3)の長さに沿って所定の距離だけオフセットされた2つの圧力センサー(31,32)を有し、前記2つの圧力センサーは、前記受信インターフェース(41)に接続され、前記受信インターフェースは、前記圧力センサーのそれぞれの信号をサンプリングするための回路を備える、
請求項1~11のいずれかに記載のシステム。 - 前記受信インターフェース(41)は、動脈内の前記圧力センサーの位置情報を受信するように構成され、前記処理装置(42)は、前記決定された基準位置から遠い前記センサーの複数の位置に対する後退脈波伝播速度を記憶するように構成され、前記処理装置(42)は、前記決定された基準位置から最も遠い前記センサーの位置に対する後退脈波伝播速度を選択するように構成されている、
請求項5及び12の組み合わせに係るシステム。
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EP18205481.7 | 2018-11-09 | ||
EP18205481.7A EP3649927B1 (fr) | 2018-11-09 | 2018-11-09 | Système de détermination d'une vitesse d'onde de pouls artérielle |
PCT/EP2019/079914 WO2020094509A1 (fr) | 2018-11-09 | 2019-10-31 | Système de détermination d'une vitesse d'onde de pouls artérielle |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009183316A (ja) * | 2008-02-01 | 2009-08-20 | Omron Healthcare Co Ltd | 脈波解析装置 |
US20100210956A1 (en) * | 2008-05-23 | 2010-08-19 | Hanbyul Meditech Co., Ltd. | Apparatus and method for sensing radial arterial pulses for noninvasive and continuous measurement of blood pressure and arterial elasticity |
JP2016209020A (ja) * | 2015-04-28 | 2016-12-15 | フクダ電子株式会社 | 生体情報監視装置およびその制御方法 |
EP3251591A1 (fr) * | 2016-06-02 | 2017-12-06 | Hospices Civils De Lyon | Système de détermination d'une vitesse d onde de pouls coronaire |
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- 2019-10-31 WO PCT/EP2019/079914 patent/WO2020094509A1/fr active Application Filing
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2009183316A (ja) * | 2008-02-01 | 2009-08-20 | Omron Healthcare Co Ltd | 脈波解析装置 |
US20100210956A1 (en) * | 2008-05-23 | 2010-08-19 | Hanbyul Meditech Co., Ltd. | Apparatus and method for sensing radial arterial pulses for noninvasive and continuous measurement of blood pressure and arterial elasticity |
JP2016209020A (ja) * | 2015-04-28 | 2016-12-15 | フクダ電子株式会社 | 生体情報監視装置およびその制御方法 |
EP3251591A1 (fr) * | 2016-06-02 | 2017-12-06 | Hospices Civils De Lyon | Système de détermination d'une vitesse d onde de pouls coronaire |
JP2019517332A (ja) * | 2016-06-02 | 2019-06-24 | オスピス シヴィル ドゥ リヨン | 冠状動脈の脈波伝播速度を測定するためのシステム |
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US20210401309A1 (en) | 2021-12-30 |
EP3649927A1 (fr) | 2020-05-13 |
EP3649927B1 (fr) | 2021-10-06 |
CA3118653A1 (en) | 2020-05-14 |
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