JP4751575B2 - 自己拡張型ステントを搬送するための内部防止装置 - Google Patents
自己拡張型ステントを搬送するための内部防止装置 Download PDFInfo
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- JP4751575B2 JP4751575B2 JP2003526313A JP2003526313A JP4751575B2 JP 4751575 B2 JP4751575 B2 JP 4751575B2 JP 2003526313 A JP2003526313 A JP 2003526313A JP 2003526313 A JP2003526313 A JP 2003526313A JP 4751575 B2 JP4751575 B2 JP 4751575B2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- 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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- 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
- A61F2002/9505—Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
- A61F2002/9511—Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument the retaining means being filaments or wires
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Description
また、最小の外形を有する後退可能な保持部材を備えたカテーテル上に保持できる、拡張可能な医療器具が求められている。
本発明の様々な実施例を、以下に要約する。本発明のさらなる詳細及び/又は本発明のさらなる実施例については、以下の「発明の詳細な説明」に記載されている。本発明の実施例の1つについての要約もまた、以下に記載されている。
更に別の実施例において、本発明は、体内の部位に拡張可能なステントを搬送するための搬送システムに関し、カテーテルと、同カテーテルは基端領域及び先端領域を有するカテーテルシャフトを有し、同カテーテルシャフトはプルワイヤルーメンを構成し、前記先端領域の少なくとも一部はステント保持領域を構成することと、前記ステント保持領域の周囲に配置されたステントと、同ステントは収縮した形状及び拡張した形状を有し、同ステントは基端部及び先端部を更に有することと、形状記憶材料から構成される単一の後退可能な保持ワイヤと、前記後退可能な保持ワイヤと一体に形成され、同後退可能な保持ワイヤを後退させるために引き込み操作されるプルワイヤと、前記後退可能な保持ワイヤの少なくとも一部は、前記ステントの少なくとも一部の外周面に巻回されて、同ステントを収縮した形状においてステント保持領域の外周面上に保持し、前記プルワイヤは、前記プルワイヤルーメン内に延びて前記カテーテルシャフトの基端領域に達することとからなる。
本発明の方法による他の実施例において、1つ以上の可撓部材を有するステントが構成され、各可撓部材は、ステントに固定された第1端部及び第2端部を有する。可撓部材はループを形成する。カテーテル部材はループ内に挿入されることにより、ステントを収縮した形状において保持する。
上述したように、本発明は、新規性を有する拡張可能な医療器具及びそれらに関連する搬送システムに関する。
本発明の方法の他の実施例において、1つ以上の可撓部材を有するステントを構成し、各可撓部材は、ステントに固定された第1端部及び第2端部を有する。可撓部材はループを形成する。カテーテル部材はループ内に挿入され、それによってステントを収縮した形状において保持する。
Claims (6)
- 体内の部位に拡張可能なステントを搬送するための搬送システムであって、
カテーテルと、同カテーテルは基端領域及び先端領域を有するカテーテルシャフトを有し、同カテーテルシャフトはプルワイヤルーメンを構成し、前記先端領域の少なくとも一部はステント保持領域を構成することと、
前記ステント保持領域の周囲に配置されたステントと、同ステントは収縮した形状及び拡張した形状を有し、同ステントは基端部及び先端部を更に有することと、
形状記憶材料から構成される単一の後退可能な保持ワイヤと、
前記後退可能な保持ワイヤと一体に形成され、同後退可能な保持ワイヤを後退させるために引き込み操作されるプルワイヤと、
前記後退可能な保持ワイヤの少なくとも一部は、前記ステントの少なくとも一部の外周面に巻回されて、同ステントを収縮した形状においてステント保持領域の外周面上に保持し、前記プルワイヤは、前記プルワイヤルーメン内に延びて前記カテーテルシャフトの基端領域に達することとからなる搬送システム。 - 前記後退可能な保持ワイヤは、ニチノール、アクリル酸塩系ポリマー、ポリウレタン系ポリマー、ポリノルボルネン系ポリマー、ポリラクチド系ポリマー及びこれらのいずれの組み合わせからなる一群の少なくとも1つの材料から構成される請求項1に記載の搬送システム。
- 前記ステントは相互連結された複数のストラットを有し、前記後退可能な保持ワイヤは、ステントの選択されたストラットの周囲にねじ状をなすように巻回される請求項1に記載の搬送システム。
- 前記ステント保持領域は医療用バルーンを有し、同医療用バルーンと連通する膨張ルーメンを更に有する請求項1に記載の搬送システム。
- 前記ステントはバルーンにより拡張可能である請求項4に記載の搬送システム。
- 前記カテーテルシャフトは側壁を有し、同側壁は少なくとも1つのルーメンポートを構成し、前記プルワイヤは、前記後退可能な保持ワイヤの基端部から基端方向に延び、前記ルーメンポートを介して前記プルワイヤルーメン内に延びる請求項1に記載の搬送システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US09/950,158 | 2001-09-10 | ||
US09/950,158 US20030050684A1 (en) | 2001-09-10 | 2001-09-10 | Internal restraint for delivery of self-expanding stents |
PCT/US2002/023814 WO2003022181A1 (en) | 2001-09-10 | 2002-07-24 | Internal restraint for delivery of self-expanding stents |
Publications (3)
Publication Number | Publication Date |
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JP2005501655A JP2005501655A (ja) | 2005-01-20 |
JP2005501655A5 JP2005501655A5 (ja) | 2006-01-05 |
JP4751575B2 true JP4751575B2 (ja) | 2011-08-17 |
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Application Number | Title | Priority Date | Filing Date |
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JP2003526313A Expired - Fee Related JP4751575B2 (ja) | 2001-09-10 | 2002-07-24 | 自己拡張型ステントを搬送するための内部防止装置 |
Country Status (5)
Country | Link |
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US (3) | US20030050684A1 (ja) |
EP (1) | EP1424961A1 (ja) |
JP (1) | JP4751575B2 (ja) |
CA (1) | CA2457246A1 (ja) |
WO (1) | WO2003022181A1 (ja) |
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CA2457246A1 (en) | 2003-03-20 |
JP2005501655A (ja) | 2005-01-20 |
US20030050684A1 (en) | 2003-03-13 |
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