JP2008526453A5 - - Google Patents

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JP2008526453A5
JP2008526453A5 JP2007551478A JP2007551478A JP2008526453A5 JP 2008526453 A5 JP2008526453 A5 JP 2008526453A5 JP 2007551478 A JP2007551478 A JP 2007551478A JP 2007551478 A JP2007551478 A JP 2007551478A JP 2008526453 A5 JP2008526453 A5 JP 2008526453A5
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heart sound
posture
patient
heart
controller
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JP5330692B2 (ja
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Claims (29)

  1. 患者の心臓の機械的活動に関連する心音の少なくとも1つを表す電気信号を作成するように動作可能である埋込型心音センサと、
    心音信号を作成するために、前記心音センサに結合された心音センサ・インタフェース回路と、
    患者の姿勢を表す電気信号を作成するように動作可能な埋込型姿勢センサと、
    前記心音センサ・インタフェース回路と前記姿勢回路に結合されたコントローラ回路を備える装置を有し、
    前記コントローラ回路は、
    少なくとも1つの感知された患者の姿勢に対応する前記少なくとも1つの心音を測定し、
    患者の姿勢変化に連動または従って、心音情報を格納し、
    姿勢変化による前記心音情報における変動を低減または除去するように、
    動作することを特徴とするシステム。
  2. 前記コントローラは、直立姿勢において前記心音を測定するように動作可能であることを特徴とする請求項1に記載のシステム。
  3. 前記コントローラ回路は、
    前記患者が複数の姿勢のどれであるかを決定し、
    前記決定された姿勢に対応する前記心音を測定し、
    心音測定と姿勢を関連づけることによって、姿勢変化による前記心音情報における変動を低減または除去するように、
    動作することを特徴とする請求項1に記載のシステム。
  4. 前記装置は、前記コントローラに結合された記憶回路をさらに有し、前記コントローラは、患者の姿勢に対応する少なくとも1つの心音の測定を記憶するように動作することを特徴とする請求項3に記載のシステム。
  5. 前記コントローラは、スケーリング・ファクタを少なくとも1つの心音の測定に適用することによって、姿勢変化による前記心音情報における変動を低減または除去するように動作可能であり、前記スケーリング・ファクタは患者の姿勢の関数であることを特徴とする請求項3に記載のシステム。
  6. 前記装置は時計回路をさらに有し、前記コントローラ回路は、患者が横臥姿勢にあるとき、1日のある時間において心音を測定するように動作することを特徴とする請求項1に記載のシステム。
  7. 前記コントローラ回路は、心音の測定が実施される前に、干渉が閾値レベルより低いことを判定するために前記埋込型心音センサによって提供された前記電気信号を使用するように動作することを特徴とする請求項1に記載のシステム。
  8. 前記装置は、少なくとも1つの固有心臓信号を検出するように動作可能な少なくとも1つの埋込型心臓信号感知回路をさらに有し、前記コントローラは、患者の心拍数が規定の心拍数閾値より低いとき、少なくとも1つの感知された患者の姿勢に対応する前記少なくとも1つの心音を測定するように動作することを特徴とする請求項1に記載のシステム。
  9. 前記装置は、埋込型活動センサをさらに有し、前記コントローラは、患者の活動レベルが規定の活動閾値より低いとき、少なくとも1つの感知された患者の姿勢に対応する前記少なくとも1つの心音を測定するように動作することを特徴とする請求項1に記載のシステム。
  10. 前記装置は、被験者の経胸腔的インピーダンス信号を提供するために、埋込型経胸腔的インピーダンス測定回路をさらに有し、前記コントローラは少なくとも1つの感知された患者の姿勢と前記測定された心音に対応する前記経胸腔的インピーダンス測定を実施するように動作可能であることを特徴とする請求項1に記載のシステム。
  11. 前記経胸腔的インピーダンス測定回路は、近DCの経胸腔的インピーダンスの測定を実施し、前記コントローラは、少なくとも1つの感知された患者の姿勢と前記測定された心音に対応する前記近DCの経胸腔的インピーダンス測定を実施するように動作することを特徴とする請求項10に記載のシステム。
  12. 前記装置は、外部装置と通信するために通信回路を含む埋込型装置であり、前記システムは前記外部装置をさらに有し、前記外部装置は、感知された患者の姿勢に関する心音情報を表示するためにディスプレイを有することを特徴とする請求項1に記載のシステム。
  13. 前記心音情報は、患者の姿勢に関する心音情報の少なくとも1つの傾向を有することを特徴とする請求項12に記載のシステム。
  14. 前記装置は、外部装置と通信するために通信回路を含む埋込型装置であり、前記システムは前記外部装置をさらに有し、前記外部装置はコンピュータ・ネットワークと通信することを特徴とする請求項1に記載のシステム。
  15. 前記外部装置は、前記心音信号と前記患者の姿勢を含む情報に基づいて警告を伝達するように動作可能であることを特徴とする請求項14に記載のシステム。
  16. 前記コントローラ回路は、姿勢に従って前記心音を分類するために分類モジュールを含むことを特徴とする請求項1に記載のシステム。
  17. 前記コントローラ回路は、特定の患者の姿勢を条件として心音の測定を開始することを特徴とする請求項1に記載のシステム。
  18. 前記特定の患者の姿勢は、直立の患者の姿勢を含むことを特徴とする請求項17に記載のシステム。
  19. 埋込型医療装置を使用して少なくとも1つの心音を感知するステップと、
    前記埋込型医療装置を使用して患者の姿勢情報を決定するステップと、
    前記姿勢情報に対応する前記心音を測定するステップと、
    患者の姿勢変化に連動、または応じて心音情報を格納するステップと、
    姿勢変化による前記心音情報における変動を低減または除去するステップと、
    を備えることを特徴とする方法。
  20. 前記姿勢変化による前記心音情報における変動を低減または除去するステップは、それぞれの姿勢に対応する心音を測定するステップと、心音の測定を姿勢に応じて関係付けるステップとを有することを特徴とする請求項19に記載の方法。
  21. 姿勢変化による前記心音情報における変動を低減または除去するステップは、少なくとも1つのスケーリング・ファクタを少なくとも1つの心音の測定に適用するステップを有し、前記スケーリング・ファクタは姿勢の関数であることを特徴とする請求項20に記載の方法。
  22. 対応する心拍数が規定の心拍数閾値より高いとき、少なくとも1つの心音の測定を排除するステップを有することを特徴とする請求項19に記載の方法。
  23. 前記姿勢情報に対応する前記心音を測定するステップは、前記患者が特定の姿勢にあることを条件として前記心音を測定するステップを有することを特徴とする請求項19に記載の方法。
  24. 前記特定の姿勢は直立姿勢であることを特徴とする請求項23に記載の方法。
  25. 患者の活動レベルが特定の活動閾値より高いとき、少なくとも1つの心音の測定を排除するステップを有することを特徴とする請求項19に記載の方法。
  26. 機械的干渉レベルが閾値を超えるとき、少なくとも1つの心音の測定を排除するステップを有することを特徴とする請求項19に記載の方法。
  27. 前記患者の姿勢に対応する少なくとも1つの心音を前記測定するステップは、姿勢に関する心音の傾向を測定するステップを有することを特徴とする請求項19に記載の方法。
  28. 前記患者の姿勢に対応する前記少なくとも1つの心音の測定の傾向情報を格納するステップをさらに有することを特徴とする請求項19に記載の方法。
  29. 前記傾向情報を表示用外部装置に伝達するステップをさらに有することを特徴とする請求項28に記載の方法。



JP2007551478A 2005-01-18 2006-01-18 心音と姿勢を測定するシステムおよび方法 Expired - Fee Related JP5330692B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/037,275 2005-01-18
US11/037,275 US7662104B2 (en) 2005-01-18 2005-01-18 Method for correction of posture dependence on heart sounds
PCT/US2006/001801 WO2006078757A1 (en) 2005-01-18 2006-01-18 Device measuring heart sounds and posture

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JP2008526453A JP2008526453A (ja) 2008-07-24
JP2008526453A5 true JP2008526453A5 (ja) 2009-03-26
JP5330692B2 JP5330692B2 (ja) 2013-10-30

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EP (1) EP1838218B1 (ja)
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WO (1) WO2006078757A1 (ja)

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