JP5508525B2 - 心臓再同期療法を促進する心房頻脈性不整脈中の迷走神経刺激 - Google Patents
心臓再同期療法を促進する心房頻脈性不整脈中の迷走神経刺激 Download PDFInfo
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- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
- A61N1/3606—Implantable neurostimulators for stimulating central or peripheral nerve system adapted for a particular treatment
- A61N1/36114—Cardiac control, e.g. by vagal stimulation
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- A61N1/36507—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by gradient or slope of the heart potential
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- A61N1/368—Heart stimulators controlled by a physiological parameter, e.g. heart potential comprising more than one electrode co-operating with different heart regions
- A61N1/3684—Heart stimulators controlled by a physiological parameter, e.g. heart potential comprising more than one electrode co-operating with different heart regions for stimulating the heart at multiple sites of the ventricle or the atrium
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- A61N1/3684—Heart stimulators controlled by a physiological parameter, e.g. heart potential comprising more than one electrode co-operating with different heart regions for stimulating the heart at multiple sites of the ventricle or the atrium
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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- Neurology (AREA)
- Electrotherapy Devices (AREA)
Description
12 心臓
14 患者
16 IMD
18、20、22 リード線
24 プログラマ
26 右心房
28 右心室
30 冠状静脈洞
32 左心室
34 コネクタブロック
36 左心房
40、44、48、 リング電極
42、46、50 螺旋状の先端電極
52、54、56 絶縁性電極ヘッド
58 筺体電極
60 筺体
62、64、66 コイル状の細長い電極
70 上大静脈
72 下大静脈
74 冠状静脈洞開口部
76 隔壁
80 IMDのプロセッサ
82 IMDのメモリ
84 IMDの信号生成器
86 IMDの電気的感知モジュール
87 IMDのセンサー
88 IMDの遠隔計測モジュール
98 IMDの電源
140 プログラマのプロセッサ
142 プログラマのメモリ
144 プログラマのユーザーインターフェース
146 プログラマの遠隔計測モジュール
148 プログラマの電源
200 アクセスポイント
202 ネットワーク
204 外部装置(サーバー)
206 入力/出力装置
208 プロセッサ
210A−210N 演算装置
Claims (11)
- 心臓再同期(resynchronization)療法を患者の心臓の少なくとも一方の心室に送達するための手段と、
前記心臓再同期療法の送達(delivery)中に前記心臓の心房頻脈性不整脈(tachyarrhythmia)を検知するための手段と、
所定の範囲(extent)を検知するための手段であって、当該範囲に対して、心室レートが、前記検知された心房頻脈性不整脈に対して応答したものと、
前記心臓再同期療法の送達中で前記検知された心房頻脈性不整脈中に前記範囲に基づいて迷走神経刺激(vagal stimulation)を送達するための手段であって、前記範囲に対して、心室レートが、前記検知された心房頻脈性不整脈に対して応答したものと、を備え、
前記心臓再同期療法を送達するための前記手段と、前記迷走神経刺激を送達するための前記手段は、前記心臓再同期療法及び前記迷走神経刺激を送達するように構成されている刺激生成器を備えており、
前記心臓再同期療法の送達中に前記心房頻脈性不整脈を検知するための前記手段と、前記所定の範囲を検知するための手段であって、前記範囲に対して、心室レートが、前記検知された心房頻脈性不整脈に対して応答したものが、
前記心臓再同期療法の送達中に、前記心臓の前記心房頻脈性不整脈を検知し、
所定の範囲を検知することであって、当該範囲に対して、心室レートが、前記検知された心房頻脈性不整脈に対して応答したものと、
前記刺激生成器を制御して、前記心臓再同期療法の送達中で前記検知された心房頻脈性不整脈中に前記範囲に基づいて前記迷走神経刺激を送達させることであって、前記範囲に対して、心室レートが、前記検知された心房頻脈性不整脈に対して応答したものである、
ように構成されているプロセッサを備えており、
前記プロセッサは、少なくとも、前記心房頻脈性不整脈中に心室ペーシング(ventricular pacing)の範囲を検知することによって、前記範囲を検知するように構成されており、前記範囲に対して、心室レートが、前記検知された心房頻脈性不整脈に対して応答したものであり、
前記検知された心房頻脈性不整脈中に、心室ペーシングの前記範囲を検知することが、
前記検知された心房頻脈性不整脈中のペーシングされた心室収縮の割合か、又は、前記検知された心房頻脈性不整脈中の固有の(intrinsic)心室収縮の割合、の少なくとも1つを検知することを含み、
前記プロセッサは、前記検知された心房頻脈性不整脈中のペーシングされた心室収縮の前記割合(percentage)、又は、前記検知された心房頻脈性不整脈中の固有の(intrinsic)心室収縮の前記割合のうちの少なくとも一方を閾値と比較し、前記刺激生成器を制御して、前記比較に基づいて前記迷走刺激を送達させる、
システム。 - 前記プロセッサは、少なくとも、前記心房頻脈性不整脈中に固有の心室収縮レートを検知することによって、前記範囲を検知するように構成されており、前記範囲に対して、心室レートが、前記検知された心房頻脈性不整脈に対して応答したものである、請求項1に記載のシステム。
- 前記迷走神経刺激は、複数のパルスの1つ又はそれ以上のパルス列を備えている、請求項1または2に記載のシステム。
- 前記迷走神経刺激は、房室結節迷走神経(atrioventricular nodal vagal)刺激を備えている、請求項1から3の何れかに記載のシステム。
- 前記システムは感知モジュールを更に備えており、前記刺激生成器と前記感知モジュールは、少なくとも1つの共通の電極を介して、前記刺激生成器は前記房室結節迷走神経刺激及び右心房ペーシングを送達するように、前記感知モジュールは心房脱分極を検知するように、構成されている、請求項4に記載のシステム。
- 前記プロセッサは、前記迷走神経刺激に続く心室レートを検知し、前記心室レートが閾値を上回っている場合は、前記迷走神経刺激の刺激パラメータを修正する、請求項1から5の何れかに記載のシステム。
- 前記閾値は、心室ペーシングレートに対応している、請求項6に記載のシステム。
- 前記プロセッサは、前記迷走神経刺激の送達に続く前記心室ペーシングの範囲を検知し、前記心室ペーシングの範囲に基づいて前記迷走神経刺激の刺激パラメータを修正する、請求項1から7の何れかに記載のシステム。
- 前記プロセッサは、前記心房不整脈が終結したかどうかを判定し、前記心房不整脈が終結していた場合は前記刺激生成器を制御して前記迷走神経刺激の送達を止めさせる、請求項1から8の何れかに記載のシステム。
- 前記プロセッサは、前記刺激生成器を制御して前記迷走神経刺激の送達を止めさせ、続けて前記迷走神経刺激のない状態での前記範囲を検知し、ここで、前記範囲に対して、心室レートが、前記検知された心房頻脈性不整脈に対して応答するものであり、そして、前記刺激生成器を制御して、前記続けて検知された前記迷走神経刺激のない状態での前記範囲に基づいて前記迷走神経刺激の送達を再開させ、ここで、前記範囲に対して、心室レートが、応答するものである、
請求項1から9の何れかに記載のシステム。 - 前記システムは植込型医療装置を更に備えており、前記植込型医療装置は前記刺激生成器と前記プロセッサを備えている、請求項1から10の何れかに記載のシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/496,528 US8386038B2 (en) | 2009-07-01 | 2009-07-01 | Vagal stimulation during atrial tachyarrhythmia to facilitate cardiac resynchronization therapy |
US12/496,528 | 2009-07-01 | ||
PCT/EP2010/003956 WO2011000558A1 (en) | 2009-07-01 | 2010-06-30 | Vagal stimulation during atrial tachyarrhythmia to facilitate cardiac resynchronization therapy |
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JP2012531283A JP2012531283A (ja) | 2012-12-10 |
JP5508525B2 true JP5508525B2 (ja) | 2014-06-04 |
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JP2012518049A Expired - Fee Related JP5508525B2 (ja) | 2009-07-01 | 2010-06-30 | 心臓再同期療法を促進する心房頻脈性不整脈中の迷走神経刺激 |
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US (2) | US8386038B2 (ja) |
EP (1) | EP2448633B1 (ja) |
JP (1) | JP5508525B2 (ja) |
HK (1) | HK1172280A1 (ja) |
WO (1) | WO2011000558A1 (ja) |
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