JP4887159B2 - 腔内人工器官装置およびその形成方法 - Google Patents
腔内人工器官装置およびその形成方法 Download PDFInfo
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- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
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- A—HUMAN NECESSITIES
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- 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
- A61F2/89—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
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- 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
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- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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- A61F2220/0075—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
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- Health & Medical Sciences (AREA)
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Description
Indiana)のクック社(Cook Incorporated)製の、Cook−Z(登録商標)の商標名で販売されているジグザグステント、および腹部大動脈瘤(AAA)再建のためのステントグラフトは、商業的実施形態の例である。湾曲した支柱を有する曲がりくねったステントが用いられてもよい。
15および1つの連結部つまり頂部16の各々について、2つの縫い目および3つの貫通部によって固定される。このように縫い目は、可能な場合には、貫通部19aで示されるように、開口部または貫通部を共有する。開口部または貫通部は、図面のすべてにおいて、明瞭性のために極めて誇張されて示されることに注意されたい。
River, MA.)のジェンザイム・バイオサージェリー(Genzyme Biosurgery)を含む多くの会社から市販されている。縫合材料は、グラフトを通って縫合部に糸を通すために用いられる中空針に取付けることができ、それによりステントをグラフトに取付ける。上述の頂部で縫合部を作ると、任意の都合のよいポイントから縫合を始めることができる。
端部を絡み合わせて結び目を結ぶ。したがって縫合部は1つの結び目を有し、2つ以上の結び目があってもよい。場合によって、または多くの場合には、ステントの頂部は、グラフトを通ってさらにステントの頂部を通るかまたはそのまわりを囲む、縫合部または糸の2つのループによってグラフトに固定され、ついで、本質的に縫合部の両端を結ぶ1つの結び目または複数の結び目によって固定される。結び目は、頂部のために好ましいロック結び目(locking knots)であってもよく、または、支柱の長さに沿う用途もしくは他の用途のために好ましい糸を重ねた結び目(overthreaded knots)であってもよい。ステントグラフトの結び目は、他のいかなる有用な、または所望の結び目をも含むことができ、これらの型に限定されない。縫い目は1つの縫合部であって少なくとも1つの結び目を含む。
辺縁に完全で崩壊しない縫合リンクを有することは不可能かもしれないが、鎖状または連続縫合部は可能な限り完全で連続的であるべきである。
20は、自己拡張型ステント119を取り付けたポリエステルなどの管状グラフト材料を含む。人工器官120は導入器100から解除されるのに続いて、自己拡張型ステント119によって拡張する。人工器官120は、その近位端から延在する自己拡張型ジグザグステント121をさらに含む。自己拡張型ジグザグステント121は、遠位に延在するかえし151を有する。導入器100から解除されると、自己拡張型ジグザグステント121はかえし151を係止し、したがって人工器官120の近位端を患者の内腔に係止する。
スリーブ110は自己拡張型ジグザグステント121を保持する。
人工器官モジュールは好ましくは逐次に配備される。管状人工器官150と分岐した人工器官120との間の相互モジュール接続部は原位置で形成される。まず分岐した人工器
官120が配備され、次に管状人工器官150が配備される。例えばWO98/53761号に記載されるように、分岐した大動脈人工器官120は腹部大動脈に配備されることができる。分岐した人工器官120は、本体部分123、短い方の脚部160および長い方の脚部132を有する、全体に逆Y字型の構成を有する。人工器官の本体は管状に織られたポリエステルから構築される。人工器官120の近位端には、人工器官の端部を越えて延在し、遠位へ延びるかえし151を有する、自己拡張型ステント121がある。短い方の脚部160および長い方の脚部132は、その遠位末端から延在する内部突出部を有する。
0の遠心端142はなお動くことができる。人工器官120をこのように位置決めすることにより、短い方の脚部160が確実に対側性動脈の方向に延在するようにできる。
Claims (16)
- 腔内人工器官装置であって、
縦糸および横糸を含むグラフトと、
複数の支柱および支柱間に頂部を含み、少なくとも1つの前記頂部が、少なくとも2つの縫い目によって前記グラフトに固定されるステントとを含み、
前記少なくとも2つの縫い目は、グラフト糸5本分の範囲内において、前記グラフト糸の間を貫通することにより、前記グラフトの貫通部を共有する、腔内人工器官装置。 - 前記少なくとも2つの縫い目は連続縫合部を形成する、請求項1に記載の腔内人工器官装置。
- 前記ステントはジグザグステントである、請求項1に記載の腔内人工器官装置。
- 前記グラフトは、ポリエステル、ポリウレタン、ポリエチレン、ポリプロピレンおよびポリテトラフルオロエチレンからなる群から選択される材料でできている、請求項1に記載の腔内人工器官装置。
- 前記縫い目はさらに、ポリエステル、ナイロン、ポリアラミド、ポリプロピレンおよびポリエチレンからなる群から選択される、モノフィラメントまたは撚られたマルチフィラメント材料を含む、請求項1に記載の腔内人工器官装置。
- 前記ステントは、ステンレス鋼、チタンおよび形状記憶材料からなる群から選択される材料を含む、請求項1に記載の腔内人工器官装置。
- 前記グラフトにさらにカフを含み、貫通部はカフの両方の層を通る、請求項1に記載の腔内人工器官装置。
- 前記グラフトは、コラーゲン、細胞外マトリックス材料および小腸粘膜下組織(SIS)からなる群から選択される生体材料を組み込む、請求項1に記載の腔内人工器官装置。
- 第2のステントをさらに含み、この第2のステントの少なくとも1つの頂部は連続縫合部の縫い目によって前記グラフトに固定される、請求項2に記載の腔内人工器官装置。
- 前記ステントはアンカリングステントであり、前記腔内人工器官装置はさらに、縫い目によって腔内人工器官グラフトに固定される第2のステントを含む、請求項1に記載の腔内人工器官装置。
- 前記腔内人工器官装置は大動脈グラフトであり、前記アンカリングステントが副腎ステントである、請求項10に記載の腔内人工器官装置。
- 縦糸および横糸を含む腔内人工器官装置を形成する方法であって、
グラフトを与えるステップと、
少なくとも2つの縫い目によって、複数の支柱および支柱間に頂部を含む第1のステントの前記頂部を前記グラフトに連結するステップとを含み、
前記ステントを前記グラフトに連結する前記ステップは、前記頂部において少なくとも2つの縫い目によって前記グラフトを固定するステップを含み、前記少なくとも2つの縫い目は、グラフト糸5本分の範囲内において、前記グラフト糸の間を貫通することにより、前記グラフトの貫通部を共有する、腔内人工器官装置の形成方法。 - 前記少なくとも2つの縫い目を連続縫合部にリンクするステップをさらに含む、請求項12に記載の腔内人工器官装置の形成方法。
- 第2のステントを前記グラフトに連結するステップをさらに含み、前記第2のステントの少なくとも1つの頂部は、前記第1のステントへの連続縫合部の縫い目によってグラフトに固定される、請求項12に記載の腔内人工器官装置の形成方法。
- 前記第1のステントを前記グラフトに連結する前記ステップの前に、カフを形成するためにグラフトを折り重ねるステップをさらに含む、請求項12に記載の腔内人工器官装置の形成方法。
- 連結するステップの前に、グラフトに少なくとも1つの開口部を形成するステップをさらに含む、請求項15に記載の腔内人工器官装置の形成方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US53756504P | 2004-01-20 | 2004-01-20 | |
US60/537,565 | 2004-01-20 | ||
PCT/US2005/002108 WO2005070338A1 (en) | 2004-01-20 | 2005-01-18 | Multiple stitches for attaching stent to graft |
Related Child Applications (1)
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JP2011175891A Division JP5629943B2 (ja) | 2004-01-20 | 2011-08-11 | 腔内人工器官装置 |
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JP2011175891A Expired - Fee Related JP5629943B2 (ja) | 2004-01-20 | 2011-08-11 | 腔内人工器官装置 |
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EP (1) | EP1706070B1 (ja) |
JP (2) | JP4887159B2 (ja) |
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AU (1) | AU2005206200B2 (ja) |
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Also Published As
Publication number | Publication date |
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JP2007518538A (ja) | 2007-07-12 |
EP1706070A1 (en) | 2006-10-04 |
WO2005070338A1 (en) | 2005-08-04 |
JP2011218230A (ja) | 2011-11-04 |
US20050159804A1 (en) | 2005-07-21 |
EP1706070B1 (en) | 2011-02-23 |
AU2005206200B2 (en) | 2010-12-09 |
ATE499073T1 (de) | 2011-03-15 |
AU2005206200A1 (en) | 2005-08-04 |
DE602005026498D1 (en) | 2011-04-07 |
JP5629943B2 (ja) | 2014-11-26 |
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