JP2017202305A - フレキシブル回路電極アセンブリを有する灌注式バルーンカテーテルを構成する方法 - Google Patents
フレキシブル回路電極アセンブリを有する灌注式バルーンカテーテルを構成する方法 Download PDFInfo
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- JP2017202305A JP2017202305A JP2017088018A JP2017088018A JP2017202305A JP 2017202305 A JP2017202305 A JP 2017202305A JP 2017088018 A JP2017088018 A JP 2017088018A JP 2017088018 A JP2017088018 A JP 2017088018A JP 2017202305 A JP2017202305 A JP 2017202305A
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Abstract
Description
本出願は、全体の内容が参照により本明細書に援用されている、発明の名称が「METHOD OF CONSTRUCTING IRRIGATED BALLOON CATHETER」である2016年4月28日に出願された米国特許出願第15/141,751号の一部継続出願であり、この優先権及び利益を主張するものである。本出願はまた、全体の内容が参照により本明細書に援用されている、発明の名称が「BALLOON CATHETER AND RELATED IMPEDANCE−BASED METHODS FOR DETECTING OCCLUSION」である2016年6月2日に出願された米国特許出願第15/172,118号の一部継続出願であり、この優先権及び利益を主張するものである。
本発明は、医療用デバイスに関する。より具体的には、本発明は、電気生理学的(EP)カテーテル、具体的には、心臓における小口領域及び管状領域をマッピング及び/又はアブレーションするためのEPカテーテルを含む心臓カテーテル法の改善に関する。
機能不全の心臓を治療するための心組織のアブレーションは、かかる治療を実施するための周知の処置である。典型的には、アブレーションを成功させるために、心筋の多様な場所で心臓の電極電位を測定する必要がある。更に、アブレーション中の温度測定により、アブレーションの有効性を測定することができるデータがもたらされる。典型的には、アブレーション処置に対して、実際のアブレーション前、アブレーション中、及びアブレーション後に、電極電位及び温度が測定される。
以下の説明において、図面中の同様の要素は、同様の数字により識別され、同様の要素は、必要に応じて識別用の数字に文字を添えることにより区別される。
本発明は、フレックス回路電極アセンブリと、フレックス回路電極アセンブリを有するバルーンと、を構成する方法を含む。いくつかの実施形態では、方法は、以下のアクション1〜9を含む。アクションは、所望に応じて又は適宜、以下に示される順番で行われる必要が無いことを理解されたい。
(1) 小口における使用のために適合された電気生理学的バルーンカテーテルの組み立てにおいて使用するフレキシブル回路電極アセンブリを構成する方法であって、該方法は、
基板と、第1の導電層と、第2の導電層と、を有する、フレックス回路を提供することと、
該第1の導電層を除去して、該基板の第1の表面を露出させることと、
該第2の導電層において、1つの排除ゾーンを有する配線電極を形成することと、
該基板において1つの導電性ビアを提供するための第1の貫通孔を形成し、かつ該排除ゾーンと整列する灌注口を提供するための第2の貫通孔を形成することと、
コンタクト電極を該基板の第1の表面上に形成することと、を含み、
該配線電極を形成することと該コンタクト電極を形成することとのうち少なくとも一方は、導電材料を該第1の貫通孔内に導入して、該導電性ビアを形成することを含み、該導電性ビアは、該基板を通って延在し、該配線電極と該コンタクト電極とを電気的に連結している、方法。
(2) 前記基板において前記第1及び第2の貫通孔を形成することの後に、露出した導電性表面上に追加導電層を適用することを更に含む、実施態様1に記載の方法。
(3) 前記コンタクト電極を形成することの後に、前記基板、前記配線電極、及び前記コンタクト電極の露出した導電性表面上に追加導電層を適用することを更に含む、実施態様1に記載の方法。
(4) 前記配線電極に異なる金属の第1及び第2の導電線を導電連結することを更に含む、実施態様1に記載の方法。
(5) 前記コンタクト電極を形成することは、前記基板の前記第1の表面上にシード層を適用し、かつ第2の追加導電層を適用することを含む、実施態様1に記載の製造する方法。
(7) 前記コンタクト電極の外周トレースの外側の領域において、前記基板の前記第1の表面上にフォトレジストを適用することと、
前記コンタクト電極の少なくとも該外周トレースの内側の領域において、前記基板の前記第1の表面上に前記シード層を適用することと、
前記コンタクト電極の少なくとも該外周トレースの内側の該領域において、前記基板の前記第1の表面上に第2の追加導電層を適用することと、
該フォトレジストを前記基板の前記第1の表面から除去することと、を更に含む、実施態様5に記載の方法。
(8) 前記コンタクト電極は、細長部分及び複数の横断方向フィンガー部を有する魚の骨形(fishbone)として構成されている、実施態様1に記載の方法。
(9) 前記コンタクト電極及び前記配線電極は、金を含む、実施態様1に記載の方法。
(10) 小口における使用のために適合された電気生理学的カテーテルを構成する方法であって、該カテーテルは、膜及びフレックス回路電極アセンブリを有するバルーンを有し、該方法は、
基板と、第1の導電層と、第2の導電層と、を有する、フレックス回路を提供することと、
該第1の導電層を除去して、該基板の第1の表面を露出させることと、
該第2の導電層において、1つの排除ゾーンを有する配線電極を形成することと、
該基板において1つの導電性ビアを提供するための第1の貫通孔を形成し、かつ該排除ゾーンと整列する灌注口を提供するための第2の貫通孔を形成することと、
コンタクト電極を該基板の第1の表面上に形成することと、
導電材料を該第1の貫通孔内に配置して、該導電性ビアを形成することであって、該導電性ビアは、該基板を通って延在し、該配線電極と該コンタクト電極とを電気的に連結している、ことと、
第1の導体及び第2の導体を該配線電極に連結して、熱電対を形成することと、
該膜に該フレックス回路を、該配線電極が該基板と該膜との間に位置する状態で固着させることと、を含む、方法。
(12) 前記コンタクト電極を形成することの後に、前記基板、前記配線電極、及び前記コンタクト電極の露出した導電性表面上に第2の追加導電層を適用することを更に含む、実施態様11に記載の方法。
(13) 前記膜に形成された貫通孔を通って、前記バルーンの内部へと前記熱電対の前記第1及び第2の導体を通すことを更に含む、実施態様10に記載の方法。
(14) 前記フレックス回路のテール部と前記膜との間に前記熱電対の前記第1及び第2の導体を配置することを更に含む、実施態様10に記載の方法。
(15) 前記配線電極を形成することは、活性はんだパッドを形成することを含む、実施態様10に記載の方法。
(17) 前記コンタクト電極を形成することは、前記基板の前記第1の表面上にシード層を適用し、かつ第2の追加導電層を適用することを含む、実施態様10に記載の方法。
(18) 前記シード層を適用し、かつ第2の追加導電層を適用することは、前記シード層及び前記第2の追加導電層を前記コンタクト電極の少なくとも外周トレース内の領域において適用することを含む、実施態様17に記載の方法。
(19) 前記コンタクト電極の外周トレースの外側の領域において、前記基板の前記第1の表面上にフォトレジストを適用することと、
前記コンタクト電極の少なくとも該外周トレースの内側の領域において、前記基板の前記第1の表面上に前記シード層を適用することと、
前記コンタクト電極の少なくとも該外周トレースの内側の該領域において、前記基板の前記第1の表面上に第2の追加導電層を適用することと、
該フォトレジストを前記基板の前記第1の表面から除去することと、を更に含む、実施態様10に記載の方法。
(20) 前記コンタクト電極は、細長部分及び複数の横断方向フィンガー部を有する魚の骨形として構成されている、実施態様10に記載の方法。
Claims (20)
- 小口における使用のために適合された電気生理学的バルーンカテーテルの組み立てにおいて使用するフレキシブル回路電極アセンブリを構成する方法であって、該方法は、
基板と、第1の導電層と、第2の導電層と、を有する、フレックス回路を提供することと、
該第1の導電層を除去して、該基板の第1の表面を露出させることと、
該第2の導電層において、1つの排除ゾーンを有する配線電極を形成することと、
該基板において1つの導電性ビアを提供するための第1の貫通孔を形成し、かつ該排除ゾーンと整列する灌注口を提供するための第2の貫通孔を形成することと、
コンタクト電極を該基板の第1の表面上に形成することと、を含み、
該配線電極を形成することと該コンタクト電極を形成することとのうち少なくとも一方は、導電材料を該第1の貫通孔内に導入して、該導電性ビアを形成することを含み、該導電性ビアは、該基板を通って延在し、該配線電極と該コンタクト電極とを電気的に連結している、方法。 - 前記基板において前記第1及び第2の貫通孔を形成することの後に、露出した導電性表面上に追加導電層を適用することを更に含む、請求項1に記載の方法。
- 前記コンタクト電極を形成することの後に、前記基板、前記配線電極、及び前記コンタクト電極の露出した導電性表面上に追加導電層を適用することを更に含む、請求項1に記載の方法。
- 前記配線電極に異なる金属の第1及び第2の導電線を導電連結することを更に含む、請求項1に記載の方法。
- 前記コンタクト電極を形成することは、前記基板の前記第1の表面上にシード層を適用し、かつ第2の追加導電層を適用することを含む、請求項1に記載の製造する方法。
- 前記シード層を適用し、かつ第2の追加導電層を適用することは、前記シード層及び前記第2の追加導電層を前記コンタクト電極の少なくとも外周トレース内の領域において適用することを含む、請求項5に記載の方法。
- 前記コンタクト電極の外周トレースの外側の領域において、前記基板の前記第1の表面上にフォトレジストを適用することと、
前記コンタクト電極の少なくとも該外周トレースの内側の領域において、前記基板の前記第1の表面上に前記シード層を適用することと、
前記コンタクト電極の少なくとも該外周トレースの内側の該領域において、前記基板の前記第1の表面上に第2の追加導電層を適用することと、
該フォトレジストを前記基板の前記第1の表面から除去することと、を更に含む、請求項5に記載の方法。 - 前記コンタクト電極は、細長部分及び複数の横断方向フィンガー部を有する魚の骨形として構成されている、請求項1に記載の方法。
- 前記コンタクト電極及び前記配線電極は、金を含む、請求項1に記載の方法。
- 小口における使用のために適合された電気生理学的カテーテルを構成する方法であって、該カテーテルは、膜及びフレックス回路電極アセンブリを有するバルーンを有し、該方法は、
基板と、第1の導電層と、第2の導電層と、を有する、フレックス回路を提供することと、
該第1の導電層を除去して、該基板の第1の表面を露出させることと、
該第2の導電層において、1つの排除ゾーンを有する配線電極を形成することと、
該基板において1つの導電性ビアを提供するための第1の貫通孔を形成し、かつ該排除ゾーンと整列する灌注口を提供するための第2の貫通孔を形成することと、
コンタクト電極を該基板の第1の表面上に形成することと、
導電材料を該第1の貫通孔内に配置して、該導電性ビアを形成することであって、該導電性ビアは、該基板を通って延在し、該配線電極と該コンタクト電極とを電気的に連結している、ことと、
第1の導体及び第2の導体を該配線電極に連結して、熱電対を形成することと、
該膜に該フレックス回路を、該配線電極が該基板と該膜との間に位置する状態で固着させることと、を含む、方法。 - 前記基板において前記第1及び第2の貫通孔を形成することの後に、露出した導電性表面上に第1の追加導電層を適用することを更に含む、請求項10に記載の方法。
- 前記コンタクト電極を形成することの後に、前記基板、前記配線電極、及び前記コンタクト電極の露出した導電性表面上に第2の追加導電層を適用することを更に含む、請求項11に記載の方法。
- 前記膜に形成された貫通孔を通って、前記バルーンの内部へと前記熱電対の前記第1及び第2の導体を通すことを更に含む、請求項10に記載の方法。
- 前記フレックス回路のテール部と前記膜との間に前記熱電対の前記第1及び第2の導体を配置することを更に含む、請求項10に記載の方法。
- 前記配線電極を形成することは、活性はんだパッドを形成することを含む、請求項10に記載の方法。
- 前記配線電極を形成することは、不活性はんだパッドを形成することを含む、請求項10に記載の方法。
- 前記コンタクト電極を形成することは、前記基板の前記第1の表面上にシード層を適用し、かつ第2の追加導電層を適用することを含む、請求項10に記載の方法。
- 前記シード層を適用し、かつ第2の追加導電層を適用することは、前記シード層及び前記第2の追加導電層を前記コンタクト電極の少なくとも外周トレース内の領域において適用することを含む、請求項17に記載の方法。
- 前記コンタクト電極の外周トレースの外側の領域において、前記基板の前記第1の表面上にフォトレジストを適用することと、
前記コンタクト電極の少なくとも該外周トレースの内側の領域において、前記基板の前記第1の表面上に前記シード層を適用することと、
前記コンタクト電極の少なくとも該外周トレースの内側の該領域において、前記基板の前記第1の表面上に第2の追加導電層を適用することと、
該フォトレジストを前記基板の前記第1の表面から除去することと、を更に含む、請求項10に記載の方法。 - 前記コンタクト電極は、細長部分及び複数の横断方向フィンガー部を有する魚の骨形として構成されている、請求項10に記載の方法。
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