JP2008534149A - 内部人工器官 - Google Patents
内部人工器官 Download PDFInfo
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- JP2008534149A JP2008534149A JP2008504310A JP2008504310A JP2008534149A JP 2008534149 A JP2008534149 A JP 2008534149A JP 2008504310 A JP2008504310 A JP 2008504310A JP 2008504310 A JP2008504310 A JP 2008504310A JP 2008534149 A JP2008534149 A JP 2008534149A
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- endoprosthesis
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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
- A61F2002/91533—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
- A61F2002/91558—Adjacent bands being connected to each other connected peak to peak
-
- 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
-
- 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
- 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
- A61F2250/0036—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 thickness
Abstract
Description
内部人工器官は、第1の幅に対する第2の幅の比率を1より大きく3未満(例えば、1.05より大きい、1.1より大きい、1.5より大きい、又は1.75より大きい等)とすることができる。
幅の比率は、1.1より大きくすることができる。
湾曲部分及び第1の部分は、482.65MPa(70重量キロポンド毎平方インチ)より大きな降伏強度を有する材料を含むことができる。
本発明の別の態様によれば、内部人工器官は、内部人工器官の長手方向軸線に対してほぼ横断するように延び、かつ第1の平均幅を有する2つの第1の部分と、第1の部分同士を連結し、かつ第2の平均幅を有する第2の部分とを備え、第1の平均幅は第2の平均幅より大きい。第2の部分は、長手方向軸線に対してほぼ平行とすることができる。第1の部分及び第2の部分は、それらの交点にて約80°〜110°の角度を形成することができる。
いくつかの実施形態では、バンド22とコネクタ24とは異なる微細構造を有することができる。例えば、バンド22とコネクタ24とが異なる結晶粒サイズを有し、バンドの結晶粒をコネクタの結晶粒よりも大きくすることができる。この結果、結晶粒サイズは通常は降伏強度に反比例するため、コネクタ24はバンド22よりも高い降伏強度を有する。コネクタ24の降伏強度が高いことによって、コネクタ24は小さな断面寸法を有することが可能になる。これにより、コネクタ24は容易に変形することができ、ステント20が非直線状の体内管の形状に十分に合致することができる。降伏強度及び断面寸法は、コネクタ24が、破断に対する抵抗を維持しながらも容易に変形することができるようにバランスがとられる。相対的に、バンド22の降伏強度が低いと、ステント20が送達システムに巻縮されるとき、及び生体内での拡張中において生じる弾性リコイルが低減される。バンド22の降伏強度及び断面寸法は、径方向の圧縮力に対する良好な抵抗を提供し、かつ弾性リコイルを制御するようにバランスがとられる。異なる粒子サイズを有するステント、及びこのようなステントの製造方法は、本願と同一の譲受人による2004年10月8日に出願された米国特許出願第10/961,289号明細書に記載されている。
特許請求の範囲は、その他の実施形態をも包含するものである。
Claims (30)
- 2つの湾曲部分と、これら2つの湾曲部分を連結する第1の部分とを有する、周方向に配向されたバンドを備え、前記第1の部分が第1の幅を有し、少なくとも1つの湾曲部分が前記第1の幅より大きな第2の幅を有する、内部人工器官。
- 第1の幅に対する第2の幅の比率が1より大きく、かつ3未満である、請求項1に記載の内部人工器官。
- 第1の幅に対する第2の幅の比率が1.05より大きい、請求項1に記載の内部人工器官。
- 第1の幅に対する第2の幅の比率が1.1より大きい、請求項1に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、482.65MPa(70重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項4に記載の内部人工器官。
- 前記第1の幅に対する第2の幅の比率が1.5より大きい、請求項1に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、482.65MPa(70重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項6に記載の内部人工器官。
- 前記第1の幅に対する第2の幅の比率が1.75より大きい、請求項1に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、482.65MPa(70重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項8に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、379.225MPa(55重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項1に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、448.175MPa(65重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項10に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、482.65MPa(70重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項11に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、344.75MPa(50重量キロポンド毎平方インチ)より大きく、かつ1034.25MPa(150重量キロポンド毎平方インチ)より小さな降伏強度を有する材料からなる、請求項1に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、ステンレス鋼、放射線不透過性の元素と合金化されたステンレス鋼、ニッケル合金、ニオブ合金、及びチタン合金から選択された材料からなる、請求項1に記載の内部人工器官。
- 前記周方向に配向されたバンドが、複数の湾曲部分と複数の第1の部分とを備え、複数の第1の部分は、ほぼ正弦波パターンを形成するように、隣接する湾曲部分同士を連結する、請求項1に記載の内部人工器官。
- 前記周方向に配向されたバンドを複数個備え、かつ隣接する該バンド間に延びる複数のコネクタを備える、請求項15に記載の内部人工器官。
- 第1の幅に対する第2の幅の比率が1.1より大きい、請求項15に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、448.175MPa(65重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項15に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、482.65MPa(70重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項14に記載の内部人工器官。
- 前記周方向に配向されたバンドが、複数の湾曲部分と、該湾曲部分同士を連結する複数の第1の部分とを備え、各第1の部分がある長さをさらに有し、
各バンドは、湾曲部分の幅の平均値を第1の部分の長さの合計値で除算することによって計算される、湾曲部分の幅に対する第1の部分の長さの総計比を有し、その比が0.01よりも大きい、請求項1に記載の内部人工器官。 - 前記湾曲部分の幅に対する第1の部分の長さの総計比が0.015よりも大きい、請求項20に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、448.175MPa(65重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項20に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、482.65MPa(70重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項22に記載の内部人工器官。
- 複数の湾曲部分と、ほぼ正弦波パターンを形成するように、隣接する湾曲部分同士を連結する複数の第1の部分とを含む、周方向に配向されたバンドを備え、前記第1の部分は第1の平均幅を有し、前記湾曲部分が第2の平均幅を有し、
第2の平均幅を第1の平均幅で除算することによって計算される幅の比率が、1.05よりも大きく、かつ前記湾曲部分及び第1の部分が、379.225MPa(55重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、内部人工器官。 - 前記幅の比率が1.1よりも大きい、請求項24に記載の内部人工器官。
- 前記湾曲部分及び第1の部分が、482.65MPa(70重量キロポンド毎平方インチ)より大きな降伏強度を有する材料からなる、請求項24に記載の内部人工器官。
- 前記周方向に配向されたバンドを複数個備え、かつ隣接する該バンド間に延びる複数のコネクタを備える、請求項24に記載の内部人工器官。
- 内部人工器官であって、
該内部人工器官の長手方向軸線をほぼ横断するように延び、かつ第1の平均幅を有する2つの第1の部分と、
前記第1の部分同士を連結し、かつ第2の平均幅を有する第2の部分と、
前記第1の平均幅が前記第2の平均幅より大きいことと
を備える内部人工器官。 - 前記第2の部分が前記長手方向軸線とほぼ平行である、請求項28に記載の内部人工器官。
- 前記第1の部分と前記第2の部分が、その交点において約80〜110°の角度を形成する、請求項28に記載の内部人工器官。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/095,004 US8435280B2 (en) | 2005-03-31 | 2005-03-31 | Flexible stent with variable width elements |
PCT/US2006/011457 WO2006105192A1 (en) | 2005-03-31 | 2006-03-29 | Endoprostheses |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2008534149A true JP2008534149A (ja) | 2008-08-28 |
Family
ID=36617237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008504310A Pending JP2008534149A (ja) | 2005-03-31 | 2006-03-29 | 内部人工器官 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8435280B2 (ja) |
EP (2) | EP1874221B1 (ja) |
JP (1) | JP2008534149A (ja) |
CA (1) | CA2601854A1 (ja) |
ES (1) | ES2447790T3 (ja) |
WO (1) | WO2006105192A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2013506517A (ja) * | 2009-10-06 | 2013-02-28 | アルテリアル・ルモンドラン・テクノロジー・エス・アー | 半径方向荷重下で均一に分布した応力を有する生体吸収性血管インプラント |
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US8157751B2 (en) * | 2007-12-13 | 2012-04-17 | Boston Scientific Scimed, Inc. | Coil member for a medical device |
US8114151B2 (en) * | 2008-05-08 | 2012-02-14 | Boston Scientific Scimed, Inc. | Stent with tabs and holes for drug delivery |
GB2488165B (en) * | 2011-02-18 | 2013-08-07 | Cook Medical Technologies Llc | Prosthesis and method of manufacturing the same |
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CA2601854A1 (en) | 2006-10-05 |
EP2353554A1 (en) | 2011-08-10 |
US20060224231A1 (en) | 2006-10-05 |
ES2447790T3 (es) | 2014-03-12 |
EP1874221A1 (en) | 2008-01-09 |
EP1874221B1 (en) | 2014-01-01 |
WO2006105192A1 (en) | 2006-10-05 |
US8435280B2 (en) | 2013-05-07 |
EP2353554B1 (en) | 2015-10-21 |
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