JP2016144642A - 遠距離場電極を備えるバスケットカテーテル - Google Patents
遠距離場電極を備えるバスケットカテーテル Download PDFInfo
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Abstract
【解決手段】 複数のスプライン電極は、アセンブリのスプライン上に配置される。アセンブリは、スプラインが径方向外側に弓状に曲がっている膨張状態の配置と、及びスプラインがカテーテル本体の長手方向軸線に概ね沿って配列されている潰れた状態の配置とで構成可能である。遠距離場電極は、アセンブリの内部に配置される。心内電位図及び遠距離場電位図は、スプライン電極の少なくとも1つ及び遠距離場電極によってそれぞれ得られる。遠距離場の成分は、遠距離場電位図を使用して心内電位図から除去される。
【選択図】 図1
Description
(1) 装置であって、
細長いカテーテル本体を有するカテーテルであって、前記カテーテル本体が内部の近位端と、遠位端と、前記カテーテル本体を通る少なくとも1つのルーメンとを有する、カテーテルと、
前記カテーテル本体の前記遠位端におけるバスケット形状のアセンブリであって、前記バスケット形状のアセンブリが長手方向軸線と、近位先端部と、遠位先端部とを有し、前記近位先端部及び前記遠位先端部において接続された複数のスプラインを備え、前記スプラインが複数のスプライン電極を備え、前記バスケット形状のアセンブリは、前記スプラインが径方向外側に弓状に曲がっている膨張状態の配置で、及び前記スプラインが前記カテーテル本体の前記長手方向軸線に概ね沿って配列されている潰れた状態の配置で構成可能である、バスケット形状のアセンブリと、
前記膨張したバスケット形状のアセンブリの前記内部に配置された遠距離場電極と、を備える装置。
(2) 前記遠距離場電極が前記バスケット形状のアセンブリの長手方向の対称軸上に配置されることを更に含む、実施態様1に記載の装置。
(3) 前記遠距離場電極が、前記スプライン電極から少なくとも0.5cmだけ離間している、実施態様1に記載の装置。
(4) 前記バスケット形状のアセンブリを引き込み、膨張させるための収縮ワイヤを更に含み、前記収縮ワイヤが前記バスケット形状のアセンブリの前記遠位先端部に装着され、その長手方向の対称軸を形成し、前記遠距離場電極が前記収縮ワイヤ上に配置されている、実施態様1に記載の装置。
(5) それぞれのスプラインの前記スプライン電極の組は、前記バスケット形状のアセンブリの前記近位先端部から等距離であり、前記遠距離場電極は、前記スプライン電極の前記組の対応する部材から等距離である、実施態様1に記載の装置。
(7) 前記スプラインのそれぞれが、前記スプライン電極の1つ又は2つ以上が装着される非導電性外側表面を有し、前記スプライン電極がリング電極を備える、実施態様1に記載の装置。
(8) 前記スプラインのそれぞれが、内部可撓性ワイヤと、前記スプライン電極の1つ又は2つ以上が装着される、前記可撓性ワイヤ上の非導電性被覆と、を備え、前記スプライン電極がリング電極を備える、実施態様1に記載の装置。
(9) 前記内部可撓性ワイヤがニチノールを含む、実施態様8に記載の装置。
(10) 前記バスケット形状のアセンブリが、3〜5個のスプラインを有する、実施態様1に記載の装置。
(12) 方法であって、
被験者の心臓内にカテーテルを挿入する工程であって、前記カテーテルが細長いカテーテル本体を有し、前記カテーテル本体が内部の近位端と、遠位端と、前記カテーテル本体を通る少なくとも1つのルーメンとを有し、前記カテーテル本体の前記遠位端におけるバスケット形状のアセンブリを有し、前記バスケット形状のアセンブリが長手方向軸線と、近位先端部と、遠位先端部とを有し、前記近位先端部及び前記遠位先端部において接続された複数のスプラインを備え、前記スプラインが複数のスプライン電極を備え、前記バスケット形状のアセンブリが、前記スプラインが径方向外側に弓状に曲がっている膨張状態の配置で、及び前記スプラインが前記カテーテル本体の前記長手方向軸線に概ね沿って配列されている潰れた状態の配置で構成可能であり、前記カテーテルが前記膨張したバスケット形状のアセンブリの前記内部に配置された遠距離場電極を有する、工程と、
前記バスケット形状のアセンブリを膨張させて前記スプライン電極の少なくとも1つを前記心臓の表面に接触させる工程と、
その後、前記スプライン電極の前記少なくとも1つを用いて心内電位図を受信し、前記遠距離場電極を用いて遠距離場電位図を受信する工程であって、前記心内電位図は近距離場の成分及び遠距離場の成分を有する、工程と
前記心内電位図に前記遠距離場電位図を適用することによって前記近距離場の成分を保持しながら前記心内電位図から前記遠距離場の成分を除去して、修正された心内電位図を生成する工程と、
前記修正された心内電位図を報告する工程と、を含む方法。
(13) 前記遠距離場の成分を除去する工程が、前記心内電位図から前記遠距離場電位図を減ずる工程を含む、実施態様12に記載の方法。
(14) 前記遠距離場電極が前記バスケット形状のアセンブリの長手方向の対称軸上に配置されることを更に含む、実施態様12に記載の方法。
(15) 前記遠距離場電極が、前記スプライン電極から少なくとも0.5cmだけ離間している、実施態様12に記載の方法。
(17) それぞれのスプラインの前記スプライン電極の組は、前記バスケット形状のアセンブリの前記近位先端部から等距離であり、前記遠距離場電極は、前記スプライン電極の前記組の対応する部材から等距離である、実施態様12に記載の方法。
(18) 前記バスケット形状のアセンブリが、前記バスケット形状のアセンブリの前記遠位先端部又はそれより遠位に装着された遠位電極位置センサと、前記バスケット形状のアセンブリの前記近位先端部又はそれより近位に装着された近位電極位置センサとを更に含み、前記方法が、
前記近位電極位置センサの座標に対する前記遠位電極位置センサの座標を決定する工程と、
前記座標を前記バスケット形状のアセンブリの前記スプラインの曲率に関する既知の情報とともに用いて前記スプライン電極のそれぞれの位置を決定する工程と、を更に含む、実施態様12に記載の方法。
(19) 前記スプラインのそれぞれが、内部可撓性ワイヤと、前記スプライン電極の1つ又は2つ以上が装着される、前記可撓性ワイヤ上の非導電性被覆と、を備え、前記スプライン電極がリング電極を備える、実施態様12に記載の方法。
(20) 前記バスケット形状のアセンブリが、3〜5個のスプラインを有する、実施態様12に記載の方法。
Claims (11)
- 装置であって、
細長いカテーテル本体を有するカテーテルであって、前記カテーテル本体が内部の近位端と、遠位端と、前記カテーテル本体を通る少なくとも1つのルーメンとを有する、カテーテルと、
前記カテーテル本体の前記遠位端におけるバスケット形状のアセンブリであって、前記バスケット形状のアセンブリが長手方向軸線と、近位先端部と、遠位先端部とを有し、前記近位先端部及び前記遠位先端部において接続された複数のスプラインを備え、前記スプラインが複数のスプライン電極を備え、前記バスケット形状のアセンブリは、前記スプラインが径方向外側に弓状に曲がっている膨張状態の配置で、及び前記スプラインが前記カテーテル本体の前記長手方向軸線に概ね沿って配列されている潰れた状態の配置で構成可能である、バスケット形状のアセンブリと、
前記膨張したバスケット形状のアセンブリの前記内部に配置された遠距離場電極と、を備える装置。 - 前記遠距離場電極が前記バスケット形状のアセンブリの長手方向の対称軸上に配置されることを更に含む、請求項1に記載の装置。
- 前記遠距離場電極が、前記スプライン電極から少なくとも0.5cmだけ離間している、請求項1に記載の装置。
- 前記バスケット形状のアセンブリを引き込み、膨張させるための収縮ワイヤを更に含み、前記収縮ワイヤが前記バスケット形状のアセンブリの前記遠位先端部に装着され、その長手方向の対称軸を形成し、前記遠距離場電極が前記収縮ワイヤ上に配置されている、請求項1に記載の装置。
- それぞれのスプラインの前記スプライン電極の組は、前記バスケット形状のアセンブリの前記近位先端部から等距離であり、前記遠距離場電極は、前記スプライン電極の前記組の対応する部材から等距離である、請求項1に記載の装置。
- 前記バスケット形状のアセンブリの前記遠位先端部又はそれより遠位に装着された遠位電極位置センサと、前記バスケット形状のアセンブリの前記近位先端部又はそれより近位に装着された近位電極位置センサと、を更に含み、それによって、使用中に前記近位電極位置センサの座標に対する前記遠位電極位置センサの座標を決定し、これを、前記バスケット形状のアセンブリの前記スプラインの曲率に関する既知の情報とともに用いて前記スプライン電極のそれぞれの位置を決定することができる、請求項1に記載の装置。
- 前記スプラインのそれぞれが、前記スプライン電極の1つ又は2つ以上が装着される非導電性外側表面を有し、前記スプライン電極がリング電極を備える、請求項1に記載の装置。
- 前記スプラインのそれぞれが、内部可撓性ワイヤと、前記スプライン電極の1つ又は2つ以上が装着される、前記可撓性ワイヤ上の非導電性被覆と、を備え、前記スプライン電極がリング電極を備える、請求項1に記載の装置。
- 前記内部可撓性ワイヤがニチノールを含む、請求項8に記載の装置。
- 前記バスケット形状のアセンブリが、3〜5個のスプラインを有する、請求項1に記載の装置。
- 前記遠距離場電極がリング電極である、請求項1に記載の装置。
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US14/616,811 US9833161B2 (en) | 2015-02-09 | 2015-02-09 | Basket catheter with far-field electrode |
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Also Published As
Publication number | Publication date |
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US10045707B2 (en) | 2018-08-14 |
US20170172442A1 (en) | 2017-06-22 |
CA2919643A1 (en) | 2016-08-09 |
US20160228023A1 (en) | 2016-08-11 |
ES2763532T3 (es) | 2020-05-29 |
CN105852843B (zh) | 2021-04-16 |
EP3053517A1 (en) | 2016-08-10 |
IL243799A0 (en) | 2016-07-31 |
US20180344188A1 (en) | 2018-12-06 |
US9833161B2 (en) | 2017-12-05 |
EP3053517B1 (en) | 2019-10-16 |
CN105852843A (zh) | 2016-08-17 |
AU2016200548A1 (en) | 2016-08-25 |
IL243799B (en) | 2020-04-30 |
JP6903399B2 (ja) | 2021-07-14 |
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