JP2011509124A - 放射線不透過性超弾性血管内ステント - Google Patents
放射線不透過性超弾性血管内ステント Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
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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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
- A61B17/12118—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm for positioning in conjunction with a stent
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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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
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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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0076—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof multilayered, e.g. laminated structures
-
- 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
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/0054—V-shaped
-
- 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
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
-
- 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
- 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
- A61F2250/0058—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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Transplantation (AREA)
- Neurosurgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Reproductive Health (AREA)
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- Media Introduction/Drainage Providing Device (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
- Surgical Instruments (AREA)
Abstract
【選択図】図3
Description
Claims (18)
- 対向する第1端部と第2端部とを有する全体的に管状の血管内ステントであって、
前記ステントの対向する第1端部と第2端部にある複数のエンドループ部と、
前記複数のエンドループ部の間の複数の中間円周ループで形成された中間管状本体部と、を備え、
前記中間管状本体部は、第1の直径と、拡大第1端部と、反対側の拡大第2端部とを有し、前記拡大第1端部および拡大第2端部は、前記中間管状本体部の前記第1の直径よりも大きい第2の直径を有することを特徴とする血管内ステント。 - 前記複数のエンドループ部は、前記ステントの前記中間管状本体部に対して半径方向外側に広がっていることを特徴とする請求項1に記載の血管内ステント。
- 前記複数のエンドループ部と、前記中間管状本体部の前記複数の中間円周ループとが、単一のらせん状に巻き付けられた複合材料ワイヤで形成されることを特徴とする請求項1に記載の血管内ステント。
- 前記複合材料ワイヤは、互いに近接して配置される第1自由端と第2自由端とを有し、前記第1自由端と前記第2自由端とを合わせて拘束して複合材料ワイヤの自由端が前記ステントの本体から延び出すことを防止する熱収縮管の短いセグメントをさらに備えることを特徴とする請求項3に記載の血管内ステント。
- 前記血管内ステントが、ステントの中心本体の直径よりも小さい直径に前記端部が収縮することなしに、伸張時に直線形状をとることを特徴とする請求項1に記載の血管内ステント。
- 前記複合材料ワイヤが、
選択された長さを有し放射線不透過性の金属で形成される細長い内核と、
前記内核に直接隣接して同軸に配置され前記内核を包囲する中間高分子層と、
前記高分子層に直接隣接して同軸に配置され前記高分子層を包囲する外側金属層と、
を備えることを特徴とする請求項3に記載の血管内ステント。 - 前記放射線不透過性の金属が、白金、タンタル、金およびこれらの組み合わせからなるグループから選択されることを特徴とする請求項6に記載の血管内ステント。
- 前記内核が円柱形であることを特徴とする請求項6に記載の血管内ステント。
- 前記内核が前記複合材料ワイヤの縦軸に沿って中心に配置されることを特徴とする請求項6に記載の血管内ステント。
- 前記高分子層が、ポリテトラフルオロエチレン、ポリパラキシリレン、フッ素置換されたポリパラキシリレン、およびこれらの組み合わせからなるグループから選択される高分子で形成されることを特徴とする請求項6に記載の血管内ステント。
- 前記外側金属層が超弾性合金で形成されることを特徴とする請求項6に記載の複合材料ワイヤ。
- 前記外側金属層がニチノールで形成されることを特徴とする請求項6に記載の血管内ステント。
- 前記内核と外側さやとが異種の金属で作成されることを特徴とする請求項6に記載の血管内ステント。
- 前記複合材料ワイヤが円柱形のワイヤとして形成されることを特徴とする請求項6に記載の血管内ステント。
- 第1および第2の対向する端部と縦軸とを有する円柱形の本体と、
前記円柱形の本体の第1端部において前記円柱形の本体から延びる4つの直交配置されたペグの第1セットと、
前記円柱形の本体の第2端部において前記円柱形の本体から延びる4つの直交配置されたペグの第2セットと、
前記円柱形の本体の前記第1端部に取り付けられた第1円錐形エンドキャップと、
前記円柱形の本体の前記第2端部に取り付けられた第2円錐形エンドキャップと、
を備える円柱形マンドレル。 - 前記第1および第2の円錐形エンドキャップは、前記円柱形の本体の第1および第2端部にテーパー角を形成する円錐形のテーパー面を有することを特徴とする請求項15に記載のマンドレル。
- 前記テーパー角は、前記円柱形の本体の縦軸に対して約30°であることを特徴とする請求項16に記載のマンドレル。
- a)第1および第2の対向する端部と縦軸とを有する円柱形の本体と、前記円柱形の本体の第1端部において前記円柱形の本体から延びる4つの直交配置されたペグの第1セットと、前記円柱形の本体の第2端部において前記円柱形の本体から延びる4つの直交配置されたペグの第2セットと、前記円柱形の本体の前記第1端部に取り付けられた第1円錐形エンドキャップと、前記円柱形の本体の前記第2端部に取り付けられた第2円錐形エンドキャップと、を備える円柱形のマンドレルを準備し、
b)前記円柱形マンドレルの第1端部にあるペグの第1セットの第1ペグの周りに単一の複合材料ワイヤを巻き付けてステントの第1端部に第1のエンドループ部を形成し、その後中間円周ループの形成に移行し、
c)前記円柱形マンドレルの第2端部にあるペグの第2セットの第1ペグの周りに単一の複合材料ワイヤを巻き付けてステントの第2端部に第1のエンドループ部を形成し、その後中間円周ループの形成に移行し、
d)ステップb)とステップc)の一方から開始してステップb)とステップc)とを交互に繰り返し、前記円柱形マンドレルの対向する第1端部と第2端部にある複数のエンドループ部の間に複数の中間円周ループを連続的に形成し続けることを含む血管内ステントの形成方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/970,338 | 2008-01-07 | ||
US11/970,338 US8623071B2 (en) | 2008-01-07 | 2008-01-07 | Radiopaque super-elastic intravascular stent |
PCT/US2009/030220 WO2009089218A2 (en) | 2008-01-07 | 2009-01-06 | Radiopaque super-elastic intravascular stent |
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JP2011509124A true JP2011509124A (ja) | 2011-03-24 |
JP5419893B2 JP5419893B2 (ja) | 2014-02-19 |
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JP2010541588A Expired - Fee Related JP5419893B2 (ja) | 2008-01-07 | 2009-01-06 | 放射線不透過性超弾性血管内ステント |
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US (4) | US8623071B2 (ja) |
EP (1) | EP2247268B1 (ja) |
JP (1) | JP5419893B2 (ja) |
CN (1) | CN101969891B (ja) |
CA (2) | CA2711484C (ja) |
ES (1) | ES2585404T3 (ja) |
WO (2) | WO2009089216A2 (ja) |
Cited By (1)
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KR20200074974A (ko) * | 2017-10-25 | 2020-06-25 | 보스톤 싸이엔티픽 싸이메드 인코포레이티드 | 비외상성 스페이서를 구비한 스텐트 |
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WO2009089216A2 (en) | 2009-07-16 |
JP5419893B2 (ja) | 2014-02-19 |
US8597344B2 (en) | 2013-12-03 |
WO2009089218A2 (en) | 2009-07-16 |
EP2247268A2 (en) | 2010-11-10 |
CA2711484A1 (en) | 2009-07-16 |
EP2247268B1 (en) | 2016-05-18 |
CN101969891B (zh) | 2014-10-29 |
WO2009089218A3 (en) | 2009-10-29 |
CN101969891A (zh) | 2011-02-09 |
WO2009089216A3 (en) | 2009-10-29 |
CA2711484C (en) | 2017-01-24 |
US8623071B2 (en) | 2014-01-07 |
US20090177268A1 (en) | 2009-07-09 |
US20100152837A1 (en) | 2010-06-17 |
US20140082924A1 (en) | 2014-03-27 |
US20140058500A1 (en) | 2014-02-27 |
CA2951303A1 (en) | 2009-07-16 |
ES2585404T3 (es) | 2016-10-05 |
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