JP2016209574A - インプラント送達システムのための電気分解による分離 - Google Patents
インプラント送達システムのための電気分解による分離 Download PDFInfo
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- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
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- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00
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Abstract
【解決手段】コア部材31の遠位端とインプラントの近位端とは、軸方向の遠位端と近位端との間に配置される1つまたは複数の溶接ジョイント68で一体に接続することができ、この1つまたは複数の溶接ジョイント68はさらに、遠位端の径方向の最も外側の外周部、及び、近位端の径方向の最も外側の外周部に配置される。分離可能なインプラントの送達には、患者内の目標位置に向けて、近位端を有し、コア部材31の遠位端に、1つまたは複数の溶接ジョイント68によって接続されるインプラントを前進させることと、1つまたは複数の溶接ジョイント68を腐食させることにより、インプラントをコア部材31から離間させることと、が含まれる。
【選択図】図7A
Description
例えば、本願発明は以下の項目を提供する。
(項目1)
遠位端を有するコア部材と、
近位端を有するインプラントと、
軸方向の上記遠位端と上記近位端との間に配置される1つまたは複数の溶接ジョイントであって、上記1つまたは複数の溶接ジョイントはさらに、上記遠位端の径方向の最も外側の外周部、及び、上記近位端の径方向の最も外側の外周部に配置される、1つまたは複数の溶接ジョイントと、を備える送達システム。
(項目2)
上記1つまたは複数の溶接ジョイントが、上記コア部材の上記遠位端と上記インプラントの上記近位端のそれぞれよりも電気分解による腐食の影響を受けやすい材料である、上記項目に記載の送達システム。
(項目3)
上記1つまたは複数の溶接ジョイントが、軸方向の上記遠位端と上記近位端との間に配置される複数の溶接ジョイントを備えてもよく、上記複数の溶接ジョイントは、上記遠位端の上記径方向の最も外側の外周部、及び、上記近位端の上記径方向の最も外側の外周部の周りに分布する、上記項目のいずれか一項に記載の送達システム。
(項目4)
上記複数の溶接ジョイントが、上記遠位端の上記径方向の最も外側の外周部、及び/または、上記近位端の上記径方向の最も外側の外周部の周りに均一に分布する、上記項目のいずれか一項に記載の送達システム。
(項目5)
上記遠位端の径方向の最も中心側の領域が、軸方向のギャップにより、上記近位端の径方向の最も中心側の領域から離間している、上記項目のいずれか一項に記載の送達システム。
(項目6)
上記遠位端が、上記1つまたは複数の溶接ジョイントのみを介して上記近位端と接続している、上記項目のいずれか一項に記載の送達システム。
(項目7)
上記1つまたは複数の溶接ジョイントが、(i)軸方向の上記近位端と上記遠位端との間、かつ(ii)上記遠位端の上記径方向の最も外側の外周部、及び/または、上記近位端の上記径方向の最も外側の外周部の、径方向の内部の部位の5%以下を占める、上記項目のいずれか一項に記載の送達システム。
(項目8)
(i)軸方向の上記近位端と上記遠位端との間、かつ(ii)上記遠位端の上記径方向の最も外側の外周部、及び/または、上記近位端の上記径方向の最も外側の外周部の、径方向の内部の部位の少なくとも95%がギャップである、上記項目のいずれか一項に記載の送達システム。
(項目9)
患者内の目標位置に向けて、近位端を有し、コア部材の遠位端に、軸方向の上記遠位端と上記近位端との間に配置される1つまたは複数の溶接ジョイントによって接続され、上記1つまたは複数の溶接ジョイントはさらに、上記遠位端の径方向の最も外側の外周部、及び、上記近位端の径方向の最も外側の外周部に配置されるインプラントを前進させることと、
上記1つまたは複数の溶接ジョイントを腐食させることにより、上記インプラントを上記コア部材から離間させることと、を含む、分離可能なインプラントの送達方法。
(項目10)
上記インプラントを上記コア部材から離間させることには、上記1つまたは複数の溶接ジョイントを電気分解により腐食させることが含まれる、上記項目に記載の方法。
(項目11)
上記インプラントを上記コア部材から離間させることには、上記1つまたは複数の溶接ジョイントが電解液内にある状態で、上記コア部材を通して上記1つまたは複数の溶接ジョイントに電流を印加することが含まれる、上記項目のいずれか一項に記載の方法。
(項目12)
上記離間の際に、上記遠位端の径方向の最も中心の領域は、軸方向のギャップにより、上記近位端の径方向の最も中心の領域と離間している、上記項目のいずれか一項に記載の方法。
(項目13)
上記前進させることには、
上記インプラントを含むカテーテルの遠位端を上記目標位置の近くに前進させることと、
上記カテーテルの上記遠位端から上記目標位置に、上記インプラントを前進させることと、と含む、上記項目のいずれか一項に記載の方法。
(項目14)
上記コア部材を回収することをさらに含む、上記項目のいずれか一項に記載の方法。
(項目15)
中心軸に沿って、コア部材の遠位端を、インプラントの近位端に軸方向に隣接するように並べることと、
上記近位端及び上記遠位端から少なくとも部分的に、1つまたは複数の溶接ジョイントを、上記遠位端の径方向の最も外側の外周部、及び、上記近位端の径方向の最も外側の外周部に形成することと、を含む、分離可能なインプラントの形成方法。
(項目16)
上記並べることには、上記近位端と上記遠位端との間に軸方向のギャップを維持することが含まれる、上記項目に記載の方法。
(項目17)
上記形成することには、上記1つまたは複数の溶接ジョイントの一部を形成する充填材料を適用することが含まれる、上記項目のいずれか一項に記載の方法。
(項目18)
上記1つまたは複数の溶接ジョイントが少なくとも部分的に、上記コア部材の上記遠位端と上記インプラントの上記近位端のそれぞれよりも電気分解による腐食の影響を受けやすい材料である、上記項目のいずれか一項に記載の方法。
(項目19)
上記形成することには、上記遠位端を上記近位端に、上記1つまたは複数の溶接ジョイントのみを介して接続することが含まれる、上記項目のいずれか一項に記載の方法。
(摘要)
インプラントを送達アセンブリから分離することを、電気分解によるものとすることができる。コア部材の遠位端とインプラントの近位端とは、軸方向の遠位端と近位端との間に配置される1つまたは複数の溶接ジョイントで一体に接続することができ、この1つまたは複数の溶接ジョイントはさらに、遠位端の径方向の最も外側の外周部、及び、近位端の径方向の最も外側の外周部に配置される。本要約書に記載の分離可能なインプラントの送達には、患者内の目標位置に向けて、上述したように、近位端を有し、コア部材の遠位端に、1つまたは複数の溶接ジョイントによって接続されるインプラントを前進させることと、1つまたは複数の溶接ジョイントを腐食させることにより、インプラントをコア部材から離間させることと、が含まれ得る。
Claims (13)
- 遠位端を有するコア部材と、
近位端を有するインプラントと、
軸方向の前記遠位端と前記近位端との間に配置される1つまたは複数の溶接ジョイントであって、前記1つまたは複数の溶接ジョイントはさらに、前記遠位端の径方向の最も外側の外周部、及び、前記近位端の径方向の最も外側の外周部に配置される、1つまたは複数の溶接ジョイントと、を備える送達システム。 - 前記1つまたは複数の溶接ジョイントが、前記コア部材の前記遠位端と前記インプラントの前記近位端のそれぞれよりも電気分解による腐食の影響を受けやすい材料である、請求項1に記載の送達システム。
- 前記1つまたは複数の溶接ジョイントが、軸方向の前記遠位端と前記近位端との間に配置される複数の溶接ジョイントを備えてもよく、前記複数の溶接ジョイントは、前記遠位端の前記径方向の最も外側の外周部、及び、前記近位端の前記径方向の最も外側の外周部の周りに分布する、請求項1に記載の送達システム。
- 前記複数の溶接ジョイントが、前記遠位端の前記径方向の最も外側の外周部、及び/または、前記近位端の前記径方向の最も外側の外周部の周りに均一に分布する、請求項3に記載の送達システム。
- 前記遠位端の径方向の最も中心側の領域が、軸方向のギャップにより、前記近位端の径方向の最も中心側の領域から離間している、請求項1に記載の送達システム。
- 前記遠位端が、前記1つまたは複数の溶接ジョイントのみを介して前記近位端と接続している、請求項1に記載の送達システム。
- 前記1つまたは複数の溶接ジョイントが、(i)軸方向の前記近位端と前記遠位端との間、かつ(ii)前記遠位端の前記径方向の最も外側の外周部、及び/または、前記近位端の前記径方向の最も外側の外周部の、径方向の内部の部位の5%以下を占める、請求項1に記載の送達システム。
- (i)軸方向の前記近位端と前記遠位端との間、かつ(ii)前記遠位端の前記径方向の最も外側の外周部、及び/または、前記近位端の前記径方向の最も外側の外周部の、径方向の内部の部位の少なくとも95%がギャップである、請求項1に記載の送達システム。
- 中心軸に沿って、コア部材の遠位端を、インプラントの近位端に軸方向に隣接するように並べることと、
前記近位端及び前記遠位端から少なくとも部分的に、1つまたは複数の溶接ジョイントを、前記遠位端の径方向の最も外側の外周部、及び、前記近位端の径方向の最も外側の外周部に形成することと、を含む、分離可能なインプラントの形成方法。 - 前記並べることには、前記近位端と前記遠位端との間に軸方向のギャップを維持することが含まれる、請求項9に記載の方法。
- 前記形成することには、前記1つまたは複数の溶接ジョイントの一部を形成する充填材料を適用することが含まれる、請求項9に記載の方法。
- 前記1つまたは複数の溶接ジョイントが少なくとも部分的に、前記コア部材の前記遠位端と前記インプラントの前記近位端のそれぞれよりも電気分解による腐食の影響を受けやすい材料である、請求項9に記載の方法。
- 前記形成することには、前記遠位端を前記近位端に、前記1つまたは複数の溶接ジョイントのみを介して接続することが含まれる、請求項9に記載の方法。
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6203327B2 (ja) | 2017-09-27 |
| CN106137294A (zh) | 2016-11-23 |
| KR20160132768A (ko) | 2016-11-21 |
| KR101788972B1 (ko) | 2017-10-20 |
| US20160331381A1 (en) | 2016-11-17 |
| EP3092956B1 (en) | 2018-09-26 |
| US9717503B2 (en) | 2017-08-01 |
| CA2927874C (en) | 2018-05-22 |
| CN106137294B (zh) | 2018-08-07 |
| EP3092956A1 (en) | 2016-11-16 |
| CA2927874A1 (en) | 2016-11-11 |
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