JP2018069092A - ステントおよびステント送達装置 - Google Patents
ステントおよびステント送達装置 Download PDFInfo
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- JP2018069092A JP2018069092A JP2017239236A JP2017239236A JP2018069092A JP 2018069092 A JP2018069092 A JP 2018069092A JP 2017239236 A JP2017239236 A JP 2017239236A JP 2017239236 A JP2017239236 A JP 2017239236A JP 2018069092 A JP2018069092 A JP 2018069092A
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- Prior art keywords
- stent
- layer
- wire
- woven
- distal
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- A—HUMAN NECESSITIES
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- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
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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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
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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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0018—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in elasticity, stiffness or compressibility
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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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0023—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in porosity
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0039—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in diameter
-
- A—HUMAN NECESSITIES
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- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
- A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
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- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
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Abstract
Description
本出願は、ステントと題され2012年7月3日に出願された米国仮出願第61/667,895号、ステント展開装置と題され2012年3月30日に出願された米国仮出願第61/618,375号、およびステント展開システムと題され2012年3月16日に出願された米国仮出願第61/612,158号に対する優先権を主張し、これら全ては、参照することによりその全体が本明細書に援用される。
以下の出願全ては、参照することによりその全体が本明細書に援用される:ステントと題され2010年12月13日に出願された米国仮特許出願第61/422、604)、ポリマーステントおよび製造方法と題され2010年12月20日に出願された米国仮特許出願第61/425,175号、ステントと題され2010年12月21日に出願された国際特許出願第PCT/US2010/061627号、ポリマーステントおよび製造方法2と題され2010年12月28日に出願された米国仮特許出願第61/427,773号、およびステントと題され2011年1月7日に出願された米国非仮特許出願第13/003,277号。
あるいは、コイル部材106は、ループ104上に配置されループ104に接着されたX線不透過性スリーブであり得る。
一例において、ワイヤ102は、直径約.001インチ〜.010インチのニチノールなどの形状記憶弾性材料によって構成される。
別の変更例において、事前に織り込まれたワイヤ102を単一の方向に沿ってテーパー状にし、共に織り込んでステント100を形成することができる。
本発明による別の好適な実施形態において、流れ方向転換層202は、固定ステント100中に織り込まれてもよい。
Claims (31)
- 第1の気孔率を有し、空間を備えた概して管状の形状をそれを通して形成する、第1の層と、
前記第1の気孔率よりも低い第2の気孔率を有する第2の層であって、前記管状の形状内の前記空間内に配置される、前記第2の層と、
を含み、
前記第2の層は、1つ以上の位置において前記第1の層に接続される、
装置。 - 前記第1の気孔率は、45%〜70%である、請求項1の装置。
- 前記装置の長さに沿った前記複数の位置において前記第1の層を前記第2の層に接続させるように織り込まれる支持ワイヤをさらに含む、請求項1の装置。
- 前記支持ワイヤは、らせんパターンに織り込まれている、請求項3の装置。
- 前記支持ワイヤの近位端部および前記支持ワイヤの遠位端部はそれぞれ、前記第1の層の一部の周囲に巻かれている、請求項3の装置。
- 前記装置の前記長さに沿った前記複数の位置は、前記装置の遠位端部と、前記移植装置の近位端部とを含む、請求項1の装置。
- 前記装置の前記長さに沿った前記複数の位置において前記第1の層を前記第2の層に接続するようにらせん状に織り込まれた第2の支持ワイヤと第3の支持ワイヤとをさらに含む、請求項3の装置。
- 前記移植装置の第1の端部および中間の近くにおいて前記第1の層を前記第2の層に接続させるように織り込まれた第1の支持ワイヤと、前記装置の第1の端部および中間の近くにおいて前記第1の層を前記第2の層に接続させるように織り込まれた前記第2の支持ワイヤとをさらに含む、請求項1の装置。
- 前記第1の層および前記第2の層は、実質的に同一の編み込みピッチを有する、請求項1の装置。
- 前記第1の層および前記第2の層は、それらの間に実質的に隙間を有していない、請求項1の装置。
- 第1の気孔率を有し、空間を備えた概して管状の形状をそれを通して形成する、第1の織り込み層と、
前記第1の気孔率よりも低い第2の気孔率を有する第2の織り込み層であって、前記管状の形状内の前記空間内に配置される、前記第2の層と、
両方の層を通して織り込まれた接続部材と、
を含み、
前記第1および第2の層は、実質的に同一のピッチを有し、前記層の間に実質的に隙間を有していない、
装置。 - 前記第2の織り込み層は、前記第1の織り込み層の内径と等しい直径を有するように編み込まれかつヒートセットされる、請求項11の装置。
- 前記第1の織り込み層および前記第2の織り込み層は、実質的に同一の編み込みピッチを有する、請求項11の装置。
- 前記第1の織り込み層および前記第2の織り込み層は、実質的に同一の速度で拡張し、実質的に同一の量だけ縮小する、請求項11の装置。
- 前記第1の織り込み層および前記第2の織り込み層は、前記装置の近位端部の近くでかつ前記装置の遠位端部において相互に取り付けられる、請求項11の装置。
- 前記第1の織り込み層および前記第2の織り込み層は、前記第1の織り込み層と前記第2の織り込み層との間でらせんパターンに織り込まれた支持ワイヤによって取り付けられる、請求項11の装置。
- ステントであって、
第1の半径方向の力を有する第1の層であって、内部を空備えた概して管状の形状をそれを通して形成する、前記第1の層と、
第2の半径方向の力を有する第2の層であって、前記管状の形状内の前記空間内に配置される、前記第2の層と、
を含み、
前記ステントの前記半径方向の力は、前記第1の層の前記第1の半径方向の力および前記第2の層の前記第2の半径方向の力の算術加算よりも大きい、
ステント。 - 前記ステントの前記半径方向の力は、前記第1の層の前記第1の半径方向の力および前記第2の層の前記第2の半径方向の力の加算よりも少なくとも約30%高い、請求項17のステント。
- 身体内における展開時において展開力を有するステントであって、
第1の気孔率を有し、内部を備えた概して管状の形状をそれを通して形成する、第1の層と、
前記第1の層から独立した身体内での展開時における展開力と、前記第1の気孔率よりも低い第2の気孔率を有する第2の層であって、前記管状の形状内の前記空間内に配置される、前記第2の層と、
を含み、
前記第1の層および第2の層を含む前記ステントの前記展開力は、前記第2の層単独の前記展開力よりも低い、
ステント。 - 前記展開力は、約0.2lbs〜0.6lbsである、請求項19のステント。
- 前記ステントの遠位端部の近くに摩擦生成領域を提供するステップであって、前記摩擦生成領域は、前記ステントの少なくとも一部と係合する、ステップと、
拘束シースを提供するステップと、前記摩擦生成領域に接続された送達ワイヤまたは管を提供するステップと、
前記送達ワイヤまたは管を押圧して、前記摩擦生成領域を遠位に移動させ、前記ステントの前記遠位端部を前記拘束シースから引き出すステップと、
を含む、自己拡張型ステントを展開する方法。 - 前記拘束シースを牽引するステップをさらに含む、請求項21の方法。
- 細長いコア部材と、
前記コア部材の遠位端部の近くに配置された第1のマーカバンドと、
前記第1のマーカバンドと前記コア部材の前記遠位端部との間に配置された第2のマーカバンドと、
前記第2のマーカバンドと前記コア部材の前記遠位端部との間の摩擦生成領域と、
を含む、ステント送達装置。 - 前記摩擦生成領域はポリマー管である、請求項23のステント送達装置。
- 前記摩擦生成領域は、複数の間隙を介したポリマー管である、求項23のステント送達装置。
- 前記摩擦生成領域は、前記コア部材から形成された複数の波形状の曲線を含む、請求項23のステント送達装置。
- 前記摩擦生成領域は、前記コア部材から形成された複数のコイルを含む、請求項23のステント送達装置。
- 前記摩擦生成領域は、前記コア部材から形成された閉ループである、請求項23のステント送達装置。
- ステント送達装置であって、
第1のガイドワイヤ通路および第1のガイドワイヤポートを有するカテーテルと、
その遠位端部に配置された第2のガイドワイヤ通路を有するプッシャーであって、前記第2のガイドワイヤ通路は、前記プッシャーが前記カテーテルに対して移動した際、前記第1のガイドワイヤ通路と前記第2のガイドワイヤ通路との間の連続性を維持するように前記第1のガイドワイヤ通路と入れ子状に係合されている、プッシャーと、
を含む、ステント送達装置。 - プッシャーを外側のカテーテルに対して前進させることと、
第1のマーカの遠位表面をステントのコイルの近位端部に対して接触させることと、
前記ステントの遠位端部を前記カテーテルの遠位開口部から外へ前進させることと、
を含む、ステント展開方法。 - 第2のマーカの第2の遠位表面を前記ステントの第2のコイルの第2の近位端部に対して接触させることと、前記ステントの近位端部を前記カテーテルの前記遠位開口部から外へ前進させることとをさらに含む、請求項30のステント展開方法。
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US61/618,375 | 2012-03-30 | ||
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EP (3) | EP4059475A1 (ja) |
JP (3) | JP6262712B2 (ja) |
KR (2) | KR101968885B1 (ja) |
CN (1) | CN104487024B (ja) |
AU (1) | AU2013231845B2 (ja) |
BR (1) | BR112014022741B1 (ja) |
CA (1) | CA2867181C (ja) |
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