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JP2018501837A5
JP2018501837A5 JP2017527658A JP2017527658A JP2018501837A5 JP 2018501837 A5 JP2018501837 A5 JP 2018501837A5 JP 2017527658 A JP2017527658 A JP 2017527658A JP 2017527658 A JP2017527658 A JP 2017527658A JP 2018501837 A5 JP2018501837 A5 JP 2018501837A5
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いくつかの実施形態では、遠位側電極または電極部分30Aは、0.5mm長である。他の実施形態では、遠位側電極または電極部分30Aは、0.1〜1mm長(たとえば、0.1〜0.2mm、0.2〜0.3mm、0.3〜0.4mm、0.4〜0.5mm、0.5〜0.6mm、0.6〜0.7mm、0.7〜0.8mm、0.8〜0.9mm、0.9〜1mm、上記範囲の間の値等)である。他の実施形態では、要求または必要に応じて、遠位側電極または電極部分30Aは、長さが1mmより大きい。いくつかの実施形態では、近位側電極または電極部分30Bは、2〜4mm長(たとえば、2〜2.5mm、2.5〜3mm、3〜3.5mm、3.5〜4mm、上記範囲間の長さ等)である。しかしながら、他の実施形態では、要求または必要に応じて、近位側電極部分30Bは、4mmより大きい(たとえば、4〜5mm、5〜6mm、6〜7mm、7〜8mm、8〜9mm、9〜10mm、10mmより大きい等)であるか、またはmmより小さい(たとえば、0.1〜0.5mm、0.5〜1mm、1〜1.5mm、1.5〜2mm、上記範囲の間の長さ等)である。高分解能電極がカテーテルシャフトに配置される実施形態では、電極の長さは1〜5mm(たとえば、1〜2mm、2〜3mm、3〜4mm、4〜5mm、上記範囲の間の長さ等)であり得る。しかしながら、他の実施形態では、要求または必要に応じて、電極は、5mmより長い(たとえば、5〜6mm、6〜7mm、7〜8mm、8〜9mm、9〜10mm、10〜15mm、15〜20mm、上記範囲の間の長さ、20mmを超える長さ等)場合がある。
図3および図4に示すように、カテーテル(明確にするために図示せず)の内部に灌注チューブ120、220を通すことができる。いくつかの実施形態では、灌注チューブ120、220は、カテーテルの近位部分(たとえば、流体ポンプと流体連通して配置することができる場所)からシステムの遠位端まで延在することができる。たとえば、いくつかの構成では、図3および図4の側面図に示すように、灌注チューブ120、220は延在し、遠位側電極110、210を通って半径方向外向きに延在する1つまたは複数の流体ポート211と流体連通している。したがって、いくつかの実施形態では、治療システムは開放灌注設計を備え、そこでは、生理食塩水および/または他の流体は、カテーテルを通って(たとえば、流体チューブ120、220内で)、電極110、210の1つまたは複数の出口ポート111、211を通って半径方向外向きに選択的に送達される。こうした生理食塩水または他の流体の送達は、電極および/または治療されている組織から
熱を除去するのに役立つことができる。いくつかの実施形態では、こうした開放灌注システムは、特に、電極が接触する組織に沿って、標的組織の過熱の可能性を防止するかまたは低減させるのに役立つことができる。開放灌注設計はまた、図2に概略的に示すシステムにも組み込まれる。たとえば、図2に示すように、遠位側電極または電極部分30Aは複数の出口ポート36を含むことができ、生理食塩水または他の灌注流体はそこを通って出ることができる。

Claims (25)

  1. 対象者の標的組織を高分解能マッピングしかつ焼灼する装置であって、
    近位端および遠位端を備える細長い本体、
    前記細長い本体に配置された第1電極部分と、
    前記第1電極部分に隣接して配置された第2電極部分であって、前記第1電極部分および前記第2電極部分は、前記対象者の組織と接触し、かつ前記組織を少なくとも部分的に焼灼するのに十分な高周波エネルギーを送達するように構成されている、少なくとも1つの第2電極部分、ならびに
    前記第1電極部分と前記第2電極部分との間に配置された少なくとも1つの絶縁ギャップであって、前記第1電極部分と前記第2電極部分とを分離するギャップ幅を有する、少なくとも1つの絶縁ギャップ
    を備え
    前記装置が、焼灼エネルギーが前記第1電極部分および前記第2電極部分に送達されていないときに前記組織に関する高分解能マッピングデータを取得するように、前記対象者の標的組織内に配置されるように構成されており
    前記装置が、別個のマッピング装置またはシステムとともに、前記別個のマッピングシステムによって適切に対象とされていない組織領域におけるマッピングデータを提供するためにロービング装置として使用され、前記別個のマッピング装置またはシステムが複数のマッピング電極を備える、装置。
  2. 前記第1電極部分が、フィルタリング素子を用いて前記第2電極部分に電気的に結合するように構成され、前記フィルタリング素子が、前記第1電極部分および前記第2電極部分を介して焼灼エネルギーを送達するために使用される周波数で低インピーダンスを示すように構成されており、
    前記第1電極部分と前記第2電極部分とを電気的に分離することにより、標的解剖学的領域に沿った高分解能マッピングが容易になり、
    前記装置が、前記取得されたマッピングデータの一部に基づき、焼灼エネルギーが前記第1電極部分および前記第2電極部分を介して送達されると、前記対象者の標的組織の1つまたは複数の領域を焼灼するように構成されている、
    請求項1に記載の装置。
  3. 前記第1電極部分と前記第2電極部分とを電気的に分離することにより、標的解剖学的
    領域に沿った高分解能マッピングが容易になる、請求項1または2に記載の装置。
  4. 前記第1電極部分が、フィルタリング素子を用いて前記第2電極部分に電気的に結合するように構成され、前記フィルタリング素子が、前記第1電極部分および前記第2電極部分を介して焼灼エネルギーを送達するために使用される周波数で低インピーダンスを示すように構成されている、請求項1または3に記載の装置。
  5. 前記フィルタリング素子が前記細長い本体上またはその中に含まれる、請求項に記載の装置。
  6. 前記装置が、前記取得されたマッピングデータの一部に基づき、焼灼エネルギーが前記第1電極部分および前記第2電極部分に送達されると、前記対象者の標的組織の1つまたは複数の領域を焼灼するように構成されている、請求項1〜5のいずれか一項に記載の装置。
  7. 組織が適切に焼灼されたか否かを判断するように構成されている、請求項1〜のいずれか一項に記載の装置。
  8. 組織が適切に焼灼されたか否かの判断が、前記第1電極部分および前記第2電極部分を用いて取得された電位図の振幅を基準電位図振幅と比較することによって決定される、請求項に記載の装置。
  9. データ取得装置とプロセッサとが作動的に結合するように構成される装置であって、
    前記データ取得装置は、前記第1電極部分および前記第2電極部分からマッピングデータを受け取るように構成され、
    前記データ取得装置は、前記別個のマッピング装置またはシステムに結合するように、かつ、前記別個のマッピング装置またはシステムからマッピングデータを受け取るように構成され、
    前記プロセッサは、カテーテルおよび前記別個のマッピング装置またはシステムから前記データ取得装置によって受け取られた前記マッピングデータから3次元マップを生成するように構成される、
    請求項1〜8のいずれか一項に記載の装置。
  10. 対象者の標的解剖学的組織に対するマッピングデータを取得するシステムであって、
    前記標的解剖学的組織に沿って組織をマッピングするように構成された少なくとも1つの高分解能電極を備えるカテーテルと、
    前記カテーテルからマッピングデータを受け取るように構成されたデータ取得装置であって、
    別個のマッピング装置に結合するように構成され、前記別個のマッピング装置からマッピングデータを受け取るように構成され、前記別個のマッピング装置が複数のマッピング電極を備える、データ取得装置と、
    前記データ取得装置によって前記カテーテルおよび前記別個のマッピング装置から受け取られた前記マッピングデータから3次元マップを生成するように構成されたプロセッサと
    を備えるシステム。
  11. 前記カテーテルが高分解能チップ電極を備える、請求項10に記載のシステム。
  12. 前記別個のマッピングシステムが少なくとも1つの拡張可能部材を備え、前記複数のマッピング電極のうちの少なくともいくつかが前記少なくとも1つの拡張可能部材に沿って
    配置されている、請求項10または11に記載のシステム。
  13. 前記別個のマッピング装置から受け取られた前記マッピングデータが単極信号を含む、請求項1012のいずれか一項に記載のシステム。
  14. 前記別個のマッピング装置から受け取られた前記マッピングデータが双極信号を含む、請求項1012のいずれか一項に記載のシステム。
  15. 前記プロセッサが、前記カテーテルおよび前記別個のマッピング装置から取得されたマッピングデータを位置合せするかまたは同期させるように構成されている、請求項1014のいずれか一項に記載のシステム。
  16. 前記プロセッサが、前記3次元マップを表示する出力デバイスに結合するように構成されている、請求項1015のいずれか一項に記載のシステム。
  17. 前記出力デバイスを備える、請求項16に記載のシステム。
  18. 前記プロセッサが前記データ取得装置内に統合されている、請求項1017のいずれか一項に記載のシステム。
  19. 前記プロセッサが前記データ取得装置とは別個である、請求項1017のいずれか一項に記載のシステム。
  20. 標的解剖学的領域のマップを改善する方法であって、
    第1マッピング装置またはシステムからマッピングデータを受け取るステップであって、前記第1マッピング装置またはシステムが複数のマッピング電極を備える、ステップと、
    第2マッピング装置またはシステムから高分解能マッピングデータを受け取るステップであって、前記第2マッピング装置またはシステムが、前記第1マッピングシステムの前記複数のマッピング電極の間の位置まで移動されて前記高分解能マッピングデータを取得するように構成され、
    前記第2マッピング装置またはシステムが、対象者の標的解剖学的領域に沿って選択的に配置され得るロービングシステムを備える、ステップと、
    プロセッサを用いて、前記第1マッピング装置またはシステムおよび前記第2マッピング装置またはシステムによって取得された前記マッピングデータを処理するステップであって、
    前記第2マッピング装置またはシステムが前記標的解剖学的領域のマップを補足および精密化するように構成されている、ステップと、
    前記プロセッサを用いて、前記第1マッピング装置またはシステムおよび前記第2マッピング装置またはシステムによって取得された前記データにより、改善された3次元マップを作成するステップと
    を含む方法。
  21. 前記改善された3次元マップを表示するステップをさらに含む、請求項20に記載の方法。
  22. 前記第1マッピング装置またはシステムの前記複数のマッピング電極から、かつ前記第2マッピング装置またはシステムから取得された前記データを位置合せするかまたは同期させるステップをさらに含む、請求項20または21に記載の方法。
  23. 前記第1マッピング装置またはシステムが少なくとも1つの拡張可能部材を備え、前記マッピング電極のうちの少なくともいくつかが前記少なくとも1つの拡張可能部材に配置されている、請求項2022のいずれか一項に記載の方法。
  24. 前記標的解剖学的領域が心臓組織を含む、請求項2023のいずれか一項に記載の方法。
  25. 前記3次元マップが活性化マップ、伝播速度マップ、電圧マップおよび旋回マップのうちの少なくとも1つを含む、請求項2024のいずれか一項に記載の方法。
JP2017527658A 2014-11-19 2015-11-18 組織の高分解能マッピングのためのシステムおよび方法 Active JP6825789B2 (ja)

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