JP2011508628A5 - - Google Patents
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- JP2011508628A5 JP2011508628A5 JP2010540699A JP2010540699A JP2011508628A5 JP 2011508628 A5 JP2011508628 A5 JP 2011508628A5 JP 2010540699 A JP2010540699 A JP 2010540699A JP 2010540699 A JP2010540699 A JP 2010540699A JP 2011508628 A5 JP2011508628 A5 JP 2011508628A5
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- catheter
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- 239000004020 conductor Substances 0.000 claims 9
- 230000005284 excitation Effects 0.000 claims 5
- 230000001264 neutralization Effects 0.000 claims 4
- 238000002679 ablation Methods 0.000 claims 2
- 238000007674 radiofrequency ablation Methods 0.000 claims 2
- 238000002847 impedance measurement Methods 0.000 claims 1
- 230000001225 therapeutic Effects 0.000 claims 1
Claims (18)
- 近位端及び遠位端を有する細長いシャフトと、
前記遠位端に配置された電極と、
前記電極に電気的に接続され、そして前記シャフトを通って前記基部端まで延びるソースリードと、
前記ソースリードとは異なって、前記電極に電気的に接続され、そして前記シャフトを通って前記基部端まで延びるセンスリードと、
を含む、カテーテル。 - 前記ソースリード及び前記センスリードが、前記基部端で別々に終端しており、ケーブル、アブレーションジェネレータ、及び複素インピーダンスを測定するよう構成された複素インピーダンスセンサの少なくとも一つと接続されるように構成される、請求項1に記載のカテーテル。
- 前記電極が、アブレーション電極であり、前記ソースリードが、RFパワーを前記電極に供給し複素インピーダンスを測定するための励起信号を供給するために、RFアブレーションジェネレータと接続されるように構成される、請求項1に記載のカテーテル。
- 前記センスリードが、複素インピーダンスセンサと接続するように構成される、請求項2に記載のカテーテル。
- 前記シャフトが、第一のルーメン及び該第一のルーメンから絶縁された第二のルーメンを含み、前記ソースリードが、前記第一のルーメン中に配置され、前記センスリードが前記第二のルーメン中に配置される、請求項1に記載のカテーテル。
- 前記シャフトが、前記ソースリード及び前記センスリードが配置される第一のルーメンを含む、請求項1に記載のカテーテル。
- 励起信号が生成される正のソースコネクタ及び負のソースコネクタ、及び正のセンスコネクタ及び負のセンスコネクタを含む4線式インターフェースを有する装置で使用するためのカテーテルシステムであって、
近位端及び遠位端を有する細長いシャフト、前記遠位端に配置されるチップ電極、及び前記チップ電極に電気的に接続され前記シャフトを通って前記近位端まで延びて前記励起信号を受信するための前記正のソースコネクタと接続されるように構成されるソースリードを有するカテーテルであって、前記電極が前記正のセンスコネクタと電気的に接続されるように構成され、前記ソースリードとは異なるセンスリードであって、前記電極に電気的に接続されるセンスリードをさらに有し、前記ソースリードと前記センスリードとは、前記近位端で別々に終端されている、カテーテルと、
前記負のソースコネクタと接続されるように構成されるソースリターンと、
前記負のセンスコネクタと接続されるように構成されるセンスリターンと、
を備え、
前記装置が、前記センスコネクタ間のインピーダンスを測定するように構成される、システム。 - 前記カテーテルが、
前記センスリードが前記シャフトを通って前記近位端まで延びており、
前記システムは、前記装置との接続のために構成される第一の端部、及び前記カテーテルとの接続のために構成される第二の端部を有するケーブルをさらに含み、前記ケーブルが、ソース伝導体及びセンス伝導体を有し、前記ソース伝導体及び前記センス伝導体が、前記正のソースコネクタおよびセンスコネクタのそれぞれに対して接続されるように、前記第一の端部において別々に終端しており、前記ソース伝導体及び前記センス伝導体が、前記カテーテルの前記ソースリード及び前記センスリードに対してそれぞれ接続されるように、前記第二の端部で別々に終端している、請求項7に記載のシステム。 - 患者に対して固定されるように構成され、前記ソースリターン及び前記センスリターンを含むパッチをさらに含む、請求項8に記載のシステム。
- 患者に対して固定されるように構成され、前記ソースリターンを含む第一のパッチ、及び前記第一のパッチから離された、患者に対して固定されるように構成され、前記センスリターンを含む第二のパッチをさらに含む、請求項8に記載のシステム。
- 前記第一及び前記第二のパッチが、所定の距離で離される、請求項10に記載のシステム。
- 前記カテーテルが、前記チップ電極に対して近位であるがオフセットされて配置されたリング電極を含み、前記ソースリターン及び前記センスリターンの少なくとも一方が前記リング電極を含む、請求項7に記載のシステム。
- 電気的に伝導性の材料を含み、患者に対して接触し固定するように構成される中立/分散リターン(インディフェレント/ディスパーシヴ((indifferent/dispersive))リターンをさらに含み、前記中立リターンが、診断機能及び治療機能の一方の実行において前記チップ電極及び前記装置と協働して使用されるようにさらに構成され、前記センスリターン及び前記ソースリターンの少なくとも一方が、前記中立/分散リターンである、請求項7に記載のシステム。
- 前記中立リターンが、前記センスリターンとソースリターンの両方を含む、請求項13に記載のシステム。
- 前記励起信号が、第一の周波数を有し、RFアブレーション信号が第二の周波数を有し、前記第一及び前記第二の周波数が区別可能である、請求項7に記載のシステム。
- 前記励起信号が約2kHz以上約200kHz以下である第一の周波数を有する、請求項7に記載のシステム。
- 前記第一の周波数が約20kHzである、請求項16に記載のシステム。
- 前記チップ電極が、第一の端子を規定し、前記ソースリターンが第二の端子を規定し、前記センスリターンが第三の端子を確定し、前記システムが、インピーダンスの測定のための4線式、3端式構成を有する、請求項7に記載のシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/966,232 | 2007-12-28 | ||
US11/966,232 US10660690B2 (en) | 2007-12-28 | 2007-12-28 | System and method for measurement of an impedance using a catheter such as an ablation catheter |
PCT/US2008/084200 WO2009085458A1 (en) | 2007-12-28 | 2008-11-20 | System and method for measurement of an impedance using a catheter such as an ablation catheter |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011508628A JP2011508628A (ja) | 2011-03-17 |
JP2011508628A5 true JP2011508628A5 (ja) | 2011-10-27 |
JP5453305B2 JP5453305B2 (ja) | 2014-03-26 |
Family
ID=40799409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010540699A Active JP5453305B2 (ja) | 2007-12-28 | 2008-11-20 | アブレーションカテーテル等のカテーテルを用いたインピーダンスの測定装置 |
Country Status (5)
Country | Link |
---|---|
US (3) | US10660690B2 (ja) |
EP (1) | EP2187829B1 (ja) |
JP (1) | JP5453305B2 (ja) |
CN (2) | CN101945618B (ja) |
WO (1) | WO2009085458A1 (ja) |
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2007
- 2007-12-28 US US11/966,232 patent/US10660690B2/en active Active
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2008
- 2008-11-20 WO PCT/US2008/084200 patent/WO2009085458A1/en active Application Filing
- 2008-11-20 JP JP2010540699A patent/JP5453305B2/ja active Active
- 2008-11-20 CN CN200880126859.XA patent/CN101945618B/zh not_active Expired - Fee Related
- 2008-11-20 EP EP08868542.5A patent/EP2187829B1/en active Active
- 2008-11-20 CN CN201410405104.0A patent/CN104146763B/zh active Active
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2020
- 2020-04-17 US US16/851,441 patent/US11896284B2/en active Active
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2023
- 2023-12-28 US US18/399,023 patent/US20240197383A1/en active Pending
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