JP4567055B2 - 腹部大動脈瘤(aaa)の小外形支持構造体 - Google Patents
腹部大動脈瘤(aaa)の小外形支持構造体 Download PDFInfo
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- JP4567055B2 JP4567055B2 JP2007523670A JP2007523670A JP4567055B2 JP 4567055 B2 JP4567055 B2 JP 4567055B2 JP 2007523670 A JP2007523670 A JP 2007523670A JP 2007523670 A JP2007523670 A JP 2007523670A JP 4567055 B2 JP4567055 B2 JP 4567055B2
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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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- A61F2/856—Single tubular stent with a side portal passage
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- Public Health (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Prostheses (AREA)
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Description
本出願は、2004年7月28日出願の優先権の基礎となる米国暫定特許出願シリアル番号60/591,954号の利益を享受するものである。
本発明は腹部大動脈瘤デバイスに関するものであり、より具体的には、分岐脚部中にデバイスに対し構造的に支持する縦の支柱を有することにより、分岐脚部がデバイスの外形を小さくすることに貢献する、腹部大動脈瘤デバイスに関する。
動脈瘤は、通常、全身性コラーゲンの合成上のまたは構造的な欠陥に起因する動脈壁の一または複数の層の異常な拡張である。腹部大動脈瘤は、大動脈の腹部における動脈瘤であり、通常、二つの腸骨動脈の一方または両方中またはその近くに位置し、あるいは腎動脈の近くに位置する。動脈瘤は、罹患大動脈の腎臓より下の部分、たとえば腎臓の下手にしばしば生じる。胸部大動脈瘤は、大動脈の胸部における動脈瘤である。動脈瘤は、未処置のままに放置されると破裂する可能性があり、通常、急速で致命的な出血を引き起こす。
本発明は、上記に簡単に説明した、より大きな内部プロテーゼに関連する不利な点を克服することを目的とするものである。
本明細書に記載された本発明の種々の実施形態は、動脈瘤の治療または修復に使用されるシステムにおける構成部品として利用できる血管内グラフトに関するものである。腹部大動脈瘤や胸部大動脈瘤のような動脈瘤を治療し、修復するためのシステムには、多くの形態がある。典型的なシステムには、動脈瘤の上手にある健全な組織に配置する固定および/またはシール用部品、および、この固定および/またはシール用部品と流体連通し、動脈瘤を通って延在し、動脈瘤の下手の健全な組織に固定される一以上のグラフトが含まれる。グラフトは、基本的に、動脈の一つの部分から同一または異なる動脈のもう一つの部分への流体の流動経路を確立し、これによって、動脈の罹患部分をバイパスするために利用されるシステム構成部品である。本システムは、一般的には、カテーテルによって送り込まれ、配置される。
本発明の具体的な実施態様は以下の通りである。
(1) 内部プロテーゼにおいて、
血管内に前記内部プロテーゼを固定しシールするように構成された、実質的に筒状構造を有する頭部と、
前記頭部と流体連通する少なくとも二つの脚部を有する尾部であって、前記少なくとも二つの脚部が、それぞれ、互い違いに配列された複数のステント要素、および、前記複数のステント要素のそれぞれの間にある縦の支柱を含んでいる、尾部と、
前記頭部の少なくとも一部、および前記少なくとも二つの脚部、に取り付けられており、これにより、少なくとも二つのエンドレッグ流体流導管を形成する、グラフト材料と、
を含む、内部プロテーゼ。
(2) 実施態様(1)に記載の内部プロテーゼにおいて、
前記複数のステント要素のそれぞれは、ジグザグパターンで構成されている、内部プロテーゼ。
(3) 実施態様(1)に記載の内部プロテーゼにおいて、
前記複数のステント要素のそれぞれは、Z−ステントである、内部プロテーゼ。
(4) 実施態様(1)に記載の内部プロテーゼにおいて、
各前記縦の支柱は、一対の前記複数のステント要素の間にある、内部プロテーゼ。
(5) 実施態様(4)に記載の内部プロテーゼにおいて、
各前記縦の支柱は、前記複数のステント要素の少なくとも一つと連結されている、内部プロテーゼ。
各前記縦の支柱は、前記複数のステント要素と連結されていない、内部プロテーゼ。
(7) 実施態様(4)に記載の内部プロテーゼにおいて、
各前記縦の支柱は、一対の前記複数のステント要素の間で、垂直に配置されている、内部プロテーゼ。
(8) 実施態様(4)に記載の内部プロテーゼにおいて、
各前記縦の支柱は、一対の前記複数のステント要素の間で、垂直以外の方向に配置されている、内部プロテーゼ。
(9) 実施態様(4)に記載の内部プロテーゼにおいて、
各前記縦の支柱は、前記グラフト材料を前記内部プロテーゼに固定するために、取り付けデバイスを受け止めるための***をさらに有する、内部プロテーゼ。
(10) 実施態様(9)に記載の内部プロテーゼにおいて、
各前記縦の支柱は、前記二つのエンドレッグ流体流導管を含んでいる前記グラフト材料の一部を受け止めて固定するためのリセプタクルをさらに有する、内部プロテーゼ。
前記グラフト材料は、各前記縦の支柱の前記リセプタクルによって受け止められる外部縫合糸ノットをさらに有する、内部プロテーゼ。
(12) 実施態様(10)に記載の内部プロテーゼにおいて、
前記複数のステント要素、および各前記縦の支柱は、前記グラフト材料の外側にある、内部プロテーゼ。
(13) 実施態様(10)に記載の内部プロテーゼにおいて、
前記複数のステント要素、および各前記縦の支柱は、前記グラフト材料に対して内側にある、内部プロテーゼ。
(14) 実施態様(1)に記載の内部プロテーゼにおいて、
前記二つの脚部は、互いに取り付けられている、内部プロテーゼ。
(15) 実施態様(14)に記載の内部プロテーゼにおいて、
前記二つの脚部を互いに取り付けるための縫合糸、
をさらに有する、内部プロテーゼ。
前記二つの脚部の寸法は、相異なる、内部プロテーゼ。
(17) 実施態様(1)に記載の内部プロテーゼにおいて、
前記二つの脚部の寸法は、互いに類似している、内部プロテーゼ。
(18) 実施態様(1)に記載の内部プロテーゼにおいて、
前記頭部、および前記尾部は、形状記憶材料、および一般的なチューブのレーザーカット品、から構成されている、内部プロテーゼ。
(19) 実施態様(1)に記載の内部プロテーゼにおいて、
前記グラフト材料は、生体適合性を有する材料からさらに構成されている、内部プロテーゼ。
(20) 実施態様(8)に記載の内部プロテーゼにおいて、
前記縦の支柱の少なくとも一つは、部分的なステント要素である、内部プロテーゼ。
Claims (14)
- 内部プロテーゼにおいて、
血管内に前記内部プロテーゼを固定しシールするように構成された、実質的に筒状構造を有する頭部と、
前記頭部と流体連通する少なくとも二つの脚部を有する尾部であって、前記少なくとも二つの脚部が、それぞれ、互い違いに配列された複数のステント要素、および、前記複数のステント要素のそれぞれの間にある空間に配置された縦の支柱を含んでいる、尾部と、
前記頭部の少なくとも一部、および前記脚部の全部、に取り付けられており、これにより、少なくとも二つのエンドレッグ流体流導管を形成する、第1のグラフト材料と、
第2のグラフト材料と、を含み、
前記ステント要素の各々が、他の前記脚部の前記ステント要素に対して互い違いに配列され、前記脚部の各々の前記ステント要素の間に空間が残され、
前記ステント要素が、互い違いに配列されることにより、2つの前記ステント要素が並ばないように構成され、送りこみ中に前記ステント要素のネスティングが可能であり、
前記縦の支柱の各々は、前記第1のグラフト材料を前記内部プロテーゼに固定するために、取り付けデバイスを受け止めるための***、および前記二つのエンドレッグ流体流導管を含んでいる前記第2のグラフト材料の一部を固定するための外部縫合糸ノットを受け止める複数のリセプタクルをさらに有する、
内部プロテーゼ。 - 請求項1に記載の内部プロテーゼにおいて、
前記複数のステント要素のそれぞれは、ジグザグパターンで構成されている、内部プロテーゼ。 - 請求項1に記載の内部プロテーゼにおいて、
前記複数のステント要素のそれぞれは、Z−ステントである、内部プロテーゼ。 - 請求項1乃至3のいずれか1項に記載の内部プロテーゼにおいて、
各前記縦の支柱は、前記複数のステント要素の少なくとも一つと連結されている、内部プロテーゼ。 - 請求項1乃至3のいずれか1項に記載の内部プロテーゼにおいて、
各前記縦の支柱は、前記複数のステント要素と連結されていない、内部プロテーゼ。 - 請求項1乃至5のいずれか1項に記載の内部プロテーゼにおいて、
各前記縦の支柱は、一対の前記複数のステント要素の間で、垂直に配置されている、内部プロテーゼ。 - 請求項1乃至5のいずれか1項に記載の内部プロテーゼにおいて、
各前記縦の支柱は、一対の前記複数のステント要素の間で、垂直以外の方向に配置されている、内部プロテーゼ。 - 請求項1乃至7のいずれか1項に記載の内部プロテーゼにおいて、
前記複数のステント要素、および各前記縦の支柱は、前記第1のグラフト材料に対して内側にある、内部プロテーゼ。 - 請求項1乃至8のいずれか1項に記載の内部プロテーゼにおいて、
前記少なくとも二つの脚部は、互いに取り付けられている、内部プロテーゼ。 - 請求項9に記載の内部プロテーゼにおいて、
前記少なくとも二つの脚部を互いに取り付けるための縫合糸、
をさらに有する、内部プロテーゼ。 - 請求項1乃至10のいずれか1項に記載の内部プロテーゼにおいて、
前記少なくとも二つの脚部の寸法は、相異なる、内部プロテーゼ。 - 請求項1乃至10のいずれか1項に記載の内部プロテーゼにおいて、
前記少なくとも二つの脚部の寸法は、互いに類似している、内部プロテーゼ。 - 請求項1乃至12のいずれか1項に記載の内部プロテーゼにおいて、
前記頭部、および前記尾部は、形状記憶材料、および一般的なチューブのレーザーカット品、から構成されている、内部プロテーゼ。 - 請求項1乃至13のいずれか1項に記載の内部プロテーゼにおいて、
前記第1および第2のグラフト材料は、生体適合性を有する材料からさらに構成されている、内部プロテーゼ。
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US59195404P | 2004-07-28 | 2004-07-28 | |
US11/188,498 US7344562B2 (en) | 2004-07-28 | 2005-07-25 | AAA low profile support structure |
PCT/US2005/026143 WO2006014826A1 (en) | 2004-07-28 | 2005-07-25 | Abdominal aortic aneurism (aaa) low profile support structure |
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US (1) | US7344562B2 (ja) |
EP (1) | EP1773249B1 (ja) |
JP (1) | JP4567055B2 (ja) |
AT (1) | ATE451076T1 (ja) |
CA (1) | CA2575117A1 (ja) |
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WO2006014826A1 (en) | 2006-02-09 |
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US7344562B2 (en) | 2008-03-18 |
US20060025846A1 (en) | 2006-02-02 |
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