JP2009050716A - カニューレステント - Google Patents
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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
- A61F2/91—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
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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
- A61F2/91—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
-
- 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
- A61F2/91—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91516—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other the meander having a change in frequency along the band
-
- 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
- A61F2/91—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91525—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other within the whole structure different bands showing different meander characteristics, e.g. frequency or amplitude
-
- 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
- A61F2/91—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91533—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
-
- 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
- A61F2/91—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/9155—Adjacent bands being connected to each other
- A61F2002/91575—Adjacent bands being connected to each other connected peak to trough
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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
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/0054—V-shaped
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
【解決手段】ステントはカニューレから形成され、可撓性セグメント11と高フープ強度セグメント12を交互に有する。軸連結バーがセグメントを相互接続し、膨張による長さの減少を最小にする。膨張していない状態において、高フープ強度セグメント内のストラットは平行であり、一方可撓性セグメント内のストラットは、湾曲部から伸びて他端において収束する。一実施例において、フープセグメントのいくつかのストラット間のギャップは大きく、他のストラット間のギャップは小さい。他の実施例において、フープセグメント内のストラット間のギャップは中程度で均一であり、これによって、連続する脈動による膨張/収縮の繰り返しにおいて、歪の大きい部分の金属疲労の発現を最小にする。
【選択図】図4
Description
0.0119 0.0100
0.00816 図9
0.00665 0.00772
0.00772
Claims (4)
- カニューレステント(10)であって、
半円形の湾曲部(15)から対で延びる複数のストラット(14)を有する可撓性セグメント(11)と、
前記カニューレステント(10)が拡張していないときに、第1の湾曲部(17)及び該第1の湾曲部(17)より大きい、第2の湾曲部(19)から対になって平行で延びる複数のストラット(16)を有するフープセグメント(12)と、
を有し、
前記可撓性セグメント(11)と前記フープセグメント(12)は、該可撓性セグメント(11)の前記半円形の湾曲部(15)の特定の1つから、該フープセグメント(12)の前記第2の湾曲部(19)の特定の1つへと延びる軸線方向連結バー(21、22)によって、前記軸線方向連結バー(21、22)が前記フープセグメント(12)の前記第2の湾曲部(19)に接する対をなす隣接した平行ストラット(16)間に配置された状態で連結され、前記軸線方向連結バー(21、22)が前記可撓性セグメント(11)の特定の1つの半円形の湾曲部(15)に該湾曲部の外側表面のみで接続し、
前記第1の湾曲部(17)は半円形状であり、前記半円形状の湾曲部(15)の曲率半径は、前記第1の湾曲部(17)の曲率半径より大きくされ、
前記軸線方向連結バー(21、22)と接続していない前記半円形の湾曲部(15)は、前記ストラット(14)と実質的に同一の厚み及び材料からなり、それによって、前記カニューレステント(10)が拡張すると、前記可撓性セグメント(11)の実質的に全ストラットは一様に開くようにされ、
前記フープセグメント(12)の前記対をなす隣接した平行ストラット(16)は、該ストラット(16)が前記第1の湾曲部(17)から延びた状態で、互いにギャップ(23)を挟んで位置しているか、又は、隣接する軸線方向連結バー(21、22)を前記ギャップをあけてそれらの間に挟むようにして、直線的な第2の湾曲部(19)を有する丸みのある接続部から延びており、前記ギャップ(23)は実質的に均等な幅を有しており、それによって前記カニューレステント(10)が拡張されるときに、前記軸線方向連結バー(21、22)はステントの軸線方向に実質的に配向されたままであり、
前記カニューレステント(10)が拡張せず、隣接するストラット対の半円形の湾曲部(15)がそれぞれ連続的に該ステントの円周表面上で接しているときに、前記対をなすストラット(14)は、該ストラットの遠位端でそれぞれ収束するようになされ、それによって、前記カニューレステント(10)が拡張又は収縮されるときに、前記可撓性セグメント(11)の拡張性が向上すると同時に、前記ストラット(14)及び前記半円形の湾曲部(15)における引っ張り歪は最小となり、
前記第1の湾曲部(17)は前記第2の湾曲部(19)のうちから選択された1つの湾曲部と隣接し、前記第1の湾曲部(17)は前記フープセグメント(12)のストラット(16)とだけ接続するようになされ、それによって前記カニューレステント(10)が拡張又は収縮されるときに、前記フープセグメント(12)の拡張性が向上すると同時に、前記ストラット(16)、前記第1の湾曲部(17)及び前記第2の湾曲部(19)における引っ張り歪が最小となる、
カニューレステント。 - 前記可撓性セグメント(11)が、第1の端部に第1の組をなす湾曲部を、第2の端部に第2の組をなす湾曲部を有し、前記第1の組又は第2の組をなす湾曲部のうち少なくとも1つは前記軸線方向連結バー(21、22)によって前記フープセグメント(12)へ接続され、前記第1の組をなす湾曲部において3箇所の前記半円形の湾曲部(15)のうち1箇所のみが前記軸線方向連結バー(21、22)に接続され、前記第2の組をなす湾曲部において3箇所の前記半円形の湾曲部(15)のうち1箇所のみが前記軸線方向連結バー(21、22)に接続されている、請求項1に記載のカニューレステント。
- 前記カニューレステント(10)が拡張していないときに、前記ギャップ(23)は、前記フープセグメント(12)の前記ストラット(16)の幅のおよそ5分の1幅から前記フープセグメント(12)の前記ストラット(16)の幅のおよそ3分の1幅の大きさである、請求項1乃至2に記載のカニューレステント。
- 前記フープセグメント(12)は、第1の組をなす湾曲部(17、19)によって画定される第1の端部と、第2の組をなす湾曲部(17、19)によって画定される第2の端部とを有し、前記第1の又は第2の組をなす湾曲部(17、19)のいずれか一方から延びるいずれか2本の隣接する軸線方向連結バー(21、22)の間に、少なくとも3箇所の、前記一方の第1の又は第2の組をなす湾曲部(17、19)とは異なる他方の前記第1の又は第2の組をなす湾曲部(17、19)が位置する、請求項1乃至3に記載のカニューレステント。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11293998P | 1998-12-18 | 1998-12-18 | |
US60/112,939 | 1998-12-18 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000587700A Division JP4321739B2 (ja) | 1998-12-18 | 1999-12-16 | カニューレステント |
Publications (2)
Publication Number | Publication Date |
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JP2009050716A true JP2009050716A (ja) | 2009-03-12 |
JP4898990B2 JP4898990B2 (ja) | 2012-03-21 |
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Application Number | Title | Priority Date | Filing Date |
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JP2000587700A Expired - Lifetime JP4321739B2 (ja) | 1998-12-18 | 1999-12-16 | カニューレステント |
JP2008272437A Expired - Lifetime JP4898990B2 (ja) | 1998-12-18 | 2008-10-22 | カニューレステント |
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Application Number | Title | Priority Date | Filing Date |
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JP2000587700A Expired - Lifetime JP4321739B2 (ja) | 1998-12-18 | 1999-12-16 | カニューレステント |
Country Status (8)
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EP (1) | EP1139918B1 (ja) |
JP (2) | JP4321739B2 (ja) |
KR (1) | KR20010089543A (ja) |
AU (1) | AU743675B2 (ja) |
CA (1) | CA2349256C (ja) |
DE (1) | DE69938058T2 (ja) |
HK (1) | HK1042223B (ja) |
WO (1) | WO2000035378A1 (ja) |
Families Citing this family (12)
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AU745664B2 (en) * | 1994-07-28 | 2002-03-28 | Medinol Ltd | A stent |
GB0020491D0 (en) * | 2000-08-18 | 2000-10-11 | Angiomed Ag | Stent with attached element and method of making such a stent |
CA2397373C (en) † | 2000-09-22 | 2010-02-09 | Boston Scientific Limited | Flexible and expandable stent |
US7037330B1 (en) * | 2000-10-16 | 2006-05-02 | Scimed Life Systems, Inc. | Neurovascular stent and method |
US7025777B2 (en) | 2002-07-31 | 2006-04-11 | Unison Therapeutics, Inc. | Flexible and conformable stent and method of forming same |
US8282678B2 (en) | 2002-11-13 | 2012-10-09 | Allium Medical Solutions Ltd. | Endoluminal lining |
US8048146B2 (en) | 2003-05-06 | 2011-11-01 | Abbott Laboratories | Endoprosthesis having foot extensions |
CN1988857B (zh) | 2004-05-05 | 2010-09-08 | 因瓦泰克有限公司 | 管腔内假体 |
EP1767240B1 (en) * | 2004-06-25 | 2014-05-21 | Zeon Corporation | Stent |
EP2107895A1 (en) | 2007-01-29 | 2009-10-14 | Cook Incorporated | Medical prosthesis and method of production |
WO2010118432A1 (en) * | 2009-04-10 | 2010-10-14 | Ev3 Inc. | Implants having high fatigue resistance, implant delivery systems, and methods of use |
CA2867181C (en) * | 2012-03-16 | 2020-08-11 | Microvention, Inc. | Stent and stent delivery device |
Citations (6)
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JPH08126704A (ja) * | 1994-04-25 | 1996-05-21 | Advanced Cardeovascular Syst Inc | ラジオパク・ステント・マーカ |
JPH08336597A (ja) * | 1994-11-15 | 1996-12-24 | Advanced Cardeovascular Syst Inc | 移植片取付け用管内ステント |
WO1997032543A1 (en) * | 1996-03-05 | 1997-09-12 | Divysio Solutions Ulc. | Expandable stent and method for delivery of same |
JPH09285548A (ja) * | 1996-04-10 | 1997-11-04 | Advanced Cardeovascular Syst Inc | 長さ方向に沿って変化する構造的強度をもつステント |
WO1998005270A1 (en) * | 1996-08-02 | 1998-02-12 | Localmed, Inc. | Tubular prosthesis having improved expansion and imaging characteristics |
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DE69838256T2 (de) * | 1997-09-24 | 2008-05-15 | Med Institute, Inc., West Lafayette | Radial aufweitbarer stent |
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- 1999-12-16 EP EP99968899A patent/EP1139918B1/en not_active Expired - Lifetime
- 1999-12-16 JP JP2000587700A patent/JP4321739B2/ja not_active Expired - Lifetime
- 1999-12-16 WO PCT/US1999/029904 patent/WO2000035378A1/en active IP Right Grant
- 1999-12-16 AU AU27100/00A patent/AU743675B2/en not_active Expired
- 1999-12-16 DE DE69938058T patent/DE69938058T2/de not_active Expired - Lifetime
- 1999-12-16 KR KR1020017006969A patent/KR20010089543A/ko not_active Application Discontinuation
- 1999-12-16 CA CA002349256A patent/CA2349256C/en not_active Expired - Lifetime
-
2002
- 2002-03-22 HK HK02102214.4A patent/HK1042223B/zh unknown
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2008
- 2008-10-22 JP JP2008272437A patent/JP4898990B2/ja not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
DE69938058T2 (de) | 2009-01-22 |
KR20010089543A (ko) | 2001-10-06 |
WO2000035378A1 (en) | 2000-06-22 |
HK1042223A1 (en) | 2002-08-09 |
CA2349256A1 (en) | 2000-06-22 |
EP1139918A1 (en) | 2001-10-10 |
HK1042223B (zh) | 2008-04-03 |
EP1139918B1 (en) | 2008-01-23 |
AU2710000A (en) | 2000-07-03 |
JP4321739B2 (ja) | 2009-08-26 |
AU743675B2 (en) | 2002-01-31 |
JP2002532136A (ja) | 2002-10-02 |
DE69938058D1 (de) | 2008-03-13 |
JP4898990B2 (ja) | 2012-03-21 |
CA2349256C (en) | 2009-04-14 |
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