JP6338894B2 - 分割リング電極とリードワイヤとの間に低オーム圧力接触の電気的接続を作製するための方法 - Google Patents
分割リング電極とリードワイヤとの間に低オーム圧力接触の電気的接続を作製するための方法 Download PDFInfo
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- JP6338894B2 JP6338894B2 JP2014048587A JP2014048587A JP6338894B2 JP 6338894 B2 JP6338894 B2 JP 6338894B2 JP 2014048587 A JP2014048587 A JP 2014048587A JP 2014048587 A JP2014048587 A JP 2014048587A JP 6338894 B2 JP6338894 B2 JP 6338894B2
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Description
1)高度に伝導性(電気的に)の銀メッキ外側コーティングのために、単位長当たりのワイヤ抵抗が減少するために、非常に小さい引張り強度のリードワイヤが使用され得ることである。このことは、ルーメン固定断面積当たりのより多くのリードワイヤの取り付けを可能にする。したがって、より高い密度の電極及び/又はより小さな先端フレンチサイズが、このデザインで利用され得る。
2)銀がリードワイヤ上で又はコーティング内で酸化した場合に関係なく、電導性接着剤中及びステンレススチール、銅又はニッケル合金リードワイヤ上の銀フラッシュコーティング中の微小銀粒子が、可撓性の低オーミック電気的接続を生み出すことである。接着剤はエラストマーであるので、これは先端部管材と同様に可撓性のままである。カテーテル先端部が偏向される場合、エラストマー系接着剤境界面と先端材料と分割リング電極との間で応力が蓄積されない。
3)熱結合接着剤の独自の特性は、容易に再加工されるその性能である。接着剤をその相転移温度(約121℃(250°F))を過ぎて単に加熱することが、装着された分割リング電極が取り外され又は交換されることを可能にする。接着剤は、必要に応じて、複数回の再加工/修復を可能にして、何回もその相転移温度を過ぎて加熱されることができる。分割リング電極接続に失敗したカテーテルは、廃棄されることなく、修復され得る。
4)複数のホットメルト接着剤は、コーティングされた分割リング電極が、1つの工程の50秒の熱接着プロセスにおいて装着され得る。フルリング電極を引っかけて、管材上の定位置に滑動させる必要性が排除される。
5)本発明の方法が、高密度リング電極カテーテルの製造を容易にすることであり、カテーテルのフレンチサイズを低減するために、電導性銀でメッキすることによって、リードワイヤ直径が最小化される。銀は、酸化された場合でも、最も電導性の元素の1つである。したがって、低電導性ワイヤの外側への銀メッキの付加は、単位長当たりのワイヤの抵抗を大きく低減する。
6)接着剤結合を最適化するために、電導性熱結合接着剤のリフロー温度が、管材の配合組成及び材料溶解温度に応じて調整されることができ、リング電極が管材の外側表面とぴったり重なるように、管材内に部分的に埋め込まれたリング電極を提供することができる。
7)分割リング電極が、材料の大きなシートからダイカットされ得、したがって、これらは、フルリング電極を製造するよりも経済的である。
8)熱結合接着剤及び管材材料が、双方ともに類似の機械的特性を有するエラストマーである。加熱及び冷却サイクルの間に、両者は類似の膨張率を有するので、同程度に伸張及び収縮し、したがって、一定の低オームの電気的接続を維持する。
9)熱結合接着剤のリフロープロセスが、各分割リング電極をリードワイヤ脱出孔において自己密着させる。
(1) 分割リング電極をカテーテルの管材に取り付けるための方法であって、
管材を提供することであって、前記管材が、少なくとも1つのルーメンと、側壁と、前記少なくとも1つのルーメンと前記管材の外側との間の連通をもたらす前記側壁内の少なくとも1つの開口部と、を有する、ことと、
電極リードワイヤを前記少なくとも1つのルーメンを通して前記少なくとも1つの開口部から出るように通過させて、前記電極リードワイヤの遠位部分を露出させることと、
前記電極リードワイヤの前記遠位部分を前記管材の外側表面上に配置させることと、
分割リング電極を前記管材の前記外側表面上に装着させ、前記開口部及び前記電極リードワイヤの遠位部分を覆うことと、
電導性接着剤を前記リング電極と前記管材の前記外側表面との間に提供することと、
を含む方法。
(2) 電導性接着剤を提供することが、前記管材の前記外側表面上への装着前に、前記電導性接着剤のフィルムを前記分割リング電極の内側表面に適用することを含む、実施態様1に記載の方法。
(3) 前記リング電極が、プラチナ合金を含む、実施態様2に記載の方法。
(4) 前記プラチナ合金が、プラチナと、イリジウム、パラジウム及び銅からなる群から選択される少なくとも1つと、を含む、実施態様3に記載の方法。
(5) 前記プラチナ合金が、約90%のプラチナを含む、実施態様3に記載の方法。
(7) 前記少なくとも1つのリードワイヤが、銀のコーティングを含む、実施態様1に記載の方法。
(8) 前記銀のコーティングが、約20マイクロメートル〜30マイクロメートルの範囲の厚さを有する、実施態様3に記載の方法。
(9) 前記リードワイヤが、約0.051mm(約0.002インチ)〜0.127mm(0.005インチ)の範囲の直径を有する、実施態様1に記載の方法。
(10) 電導性接着剤を提供することが、前記分割リング電極を装着する前に、前記電導性接着剤を前記電極の前記遠位部分及び前記外側表面の少なくとも一部に適用することを含む、実施態様1に記載の方法。
(12) 前記電導性接着剤が、前記管材の周りの周囲方向に個々のビーズとして適用される、実施態様10に記載の方法。
(13) 前記電極リードワイヤの前記遠位部分を、前記管材の外側表面上に配置させることが、前記遠位部分を前記管材の前記外側表面の周囲に巻き付けることを含む、実施態様1に記載の方法。
(14) 前記電導性接着剤が、電導性相転移熱結合接着剤を含む、実施態様1に記載の方法。
(15) 前記電導性接着剤を加熱してリフローさせることを更に含む、実施態様1に記載の方法。
(17) 前記分割リング電極が、金又はパラジウムのコーティングを有する、実施態様1に記載の方法。
(18) 前記分割リング電極上の前記コーティングが、約10マイクロメートル〜40マイクロメートルの範囲の厚さを有する、実施態様17に記載の方法。
(19) 分割リング電極を前記管材の前記外側表面上に装着させることが、前記分割リング電極を前記管材の前記外側表面上に半径方向に圧縮させることを含む、実施態様1に記載の方法。
(20) 分割リング電極を前記管材の前記外側表面上に装着させることが、前記分割リング電極を前記管材の前記外側表面上に半径方向に圧縮させることと、前記電導性接着剤を加熱することとを含む、実施態様1に記載の方法。
Claims (16)
- 分割リング電極をカテーテルの管材に取り付けるための方法であって、
管材を提供することであって、前記管材が、少なくとも1つのルーメンと、側壁と、前記少なくとも1つのルーメンと前記管材の外側との間の連通をもたらす前記側壁内の少なくとも1つの開口部と、を有する、ことと、
電極リードワイヤを前記少なくとも1つのルーメンを通して前記少なくとも1つの開口部から出るように通過させて、前記電極リードワイヤの遠位部分を露出させることと、
前記電極リードワイヤの前記遠位部分を前記管材の外側表面上に配置させることと、
分割リング電極を前記管材の前記外側表面上に装着させ、前記開口部及び前記電極リードワイヤの遠位部分を覆うことと、
電導性接着剤をフィルムの状態で前記リング電極と前記管材の前記外側表面との間に提供することと、
前記電導性接着剤のフィルムを加熱してリフローさせることと、
を含む方法。 - 電導性接着剤をフィルムの状態で提供することが、前記管材の前記外側表面上への装着前に、前記電導性接着剤のフィルムを前記分割リング電極の内側表面に適用することを含む、請求項1に記載の方法。
- 前記リング電極が、プラチナ合金を含む、請求項2に記載の方法。
- 前記プラチナ合金が、プラチナと、イリジウム、パラジウム及び銅からなる群から選択される少なくとも1つと、を含む、請求項3に記載の方法。
- 前記プラチナ合金が、約90%のプラチナを含む、請求項3に記載の方法。
- 前記少なくとも1つのリードワイヤが、ステンレススチール、銅及び/又はニッケル合金を含む、請求項1に記載の方法。
- 前記少なくとも1つのリードワイヤが、銀のコーティングを含む、請求項1に記載の方法。
- 前記銀のコーティングが、約20マイクロメートル〜30マイクロメートルの範囲の厚さを有する、請求項7に記載の方法。
- 前記リードワイヤが、約0.051mm(約0.002インチ)〜0.127mm(0.005インチ)の範囲の直径を有する、請求項1に記載の方法。
- 前記電極リードワイヤの前記遠位部分を、前記管材の外側表面上に配置させることが、前記遠位部分を前記管材の前記外側表面の周囲に巻き付けることを含む、請求項1に記載の方法。
- 前記電導性接着剤が、電導性相転移熱結合接着剤を含む、請求項1に記載の方法。
- 前記分割リング電極が、約1.0mm〜3.0mmの範囲の厚さを有する、請求項1に記載の方法。
- 前記分割リング電極が、金又はパラジウムのコーティングを有する、請求項1に記載の方法。
- 前記分割リング電極上の前記コーティングが、約10マイクロメートル〜40マイクロメートルの範囲の厚さを有する、請求項13に記載の方法。
- 分割リング電極を前記管材の前記外側表面上に装着させることが、前記分割リング電極を前記管材の前記外側表面上に半径方向に圧縮させることを含む、請求項1に記載の方法。
- 分割リング電極を前記管材の前記外側表面上に装着させることが、前記分割リング電極を前記管材の前記外側表面上に半径方向に圧縮させることと、前記電導性接着剤を加熱することとを含む、請求項1に記載の方法。
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US13/802,259 US9278187B2 (en) | 2013-03-13 | 2013-03-13 | Method for making a low OHMIC pressure-contact electrical connection between split ring electrode and lead wire |
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RU2014109436A (ru) | 2015-09-20 |
AU2018214130A1 (en) | 2018-08-30 |
AU2018214130B2 (en) | 2019-11-07 |
AU2014201196A1 (en) | 2014-10-02 |
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RU2680200C2 (ru) | 2019-02-18 |
ES2771023T3 (es) | 2020-07-06 |
EP3388010B1 (en) | 2019-11-27 |
JP2014176653A (ja) | 2014-09-25 |
CN104042336A (zh) | 2014-09-17 |
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EP2783652A3 (en) | 2014-10-08 |
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ES2679399T3 (es) | 2018-08-27 |
EP3388010A1 (en) | 2018-10-17 |
EP2783652A2 (en) | 2014-10-01 |
US20140261985A1 (en) | 2014-09-18 |
US10004417B2 (en) | 2018-06-26 |
CN104042336B (zh) | 2018-10-19 |
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