JP4464972B2 - 腔内人工器官のための相互接続されたレッグ延長部 - Google Patents
腔内人工器官のための相互接続されたレッグ延長部 Download PDFInfo
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- JP4464972B2 JP4464972B2 JP2006545438A JP2006545438A JP4464972B2 JP 4464972 B2 JP4464972 B2 JP 4464972B2 JP 2006545438 A JP2006545438 A JP 2006545438A JP 2006545438 A JP2006545438 A JP 2006545438A JP 4464972 B2 JP4464972 B2 JP 4464972B2
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- Prior art keywords
- stent graft
- stent
- prosthesis
- opening
- flexible bridge
- Prior art date
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- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0067—Three-dimensional shapes conical
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Prostheses (AREA)
Description
本特許文書は、米国特許法第119条(e)に基づき、2003年12月17日に出願された米国仮特許出願連続番号第60/530,388号の出願日の利益を主張し、それが本願明細書に引用にて援用される。
本発明は、損傷を受けた血管などの内腔を再建するための、人間または動物の体内への移植用人工器官に関する。
人間および動物の身体の血管および管路などの機能的な脈管は、しばしば弱ったり、さらには破裂したりする。例えば大動脈では、血管壁が弱ったり破れたりした結果、動脈瘤および解離などの危険状態となることがある。このような状態の処置は、侵襲が最小の外科的手術手順を用いて、脈管系内に人工器官を移植することにより行なうことができる。腔内人工器官は典型的には、グラフト材料に取付けられた1つ以上のステントを含み、血管内挿入によって処置部位に送達される。一旦腔内人工器官が径方向に拡大すれば、それは血管壁への自己接着によって永久的に定位置に残るはずであって、血液または他の流体の流れのために脈管の代用の役割をする。
は両方のレッグとを正確に接続するのは複雑かつ時間のかかるプロセスであり得る。挿入し、位置合わせし、配置する個々の部分がさらに多いときは、処置手順の困難性と危険性はさらに増加しかねない。モジュールシステムを用いる場合に起り得る問題としては、本体とレッグ構成要素との封止が不完全なために生じるエンドリーク、および時が経つとレッグが主要人工器官本体から分離することが含まれる。
本発明の1つの局面において腔内人工器官アセンブリがあり、アセンブリは、第1のステントグラフトと、第2のステントグラフトと、第1のステントグラフトおよび第2ステントグラフトの間に延在してそれらに接続される可撓性ブリッジとを含む。
グラフトの間に延在してそれらに接続される可撓性ブリッジとを含み、さらに、第1のステントグラフトの少なくとも一部分を第2の遠位開口部を通って第2の腸骨動脈に挿入するステップと、第1のステントグラフトが第2の遠位開口部を封止的に係合し、第2のステントグラフトが第1の遠位開口部を封止的に係合するよう、相互接続された延長人工器官が拡張状態に拡張することを可能にするステップとを含む。
本発明は、相互接続されたレッグ延長部を有する腔内人工器官に関する。人工器官は、可撓性ブリッジ部分によって隔てられた2つのステントグラフト部分を含む。ステントグラフト部分は可撓性ブリッジによって相互に接続され、分岐した人工器官と連係して腔内人工器官アセンブリのレッグ部分を形成することができる。大動脈瘤の処置において人工器官は、一方の腸骨動脈を通って分岐した主要な人工器官へ、および他方の腸骨動脈へと送達することができる。
ト)などのポリエステル、ポリテトラフルオロエチレン(PTFE)および拡張PTFEなどのフッ素化ポリマを含む。生体適合性のあるポリエステルの例は、ダクロン(DACRON)(登録商標)(デュポン社(DUPONT)、デラウェア州ウィルミントン(Willminton,DE))およびツイルウィー・ヴミクレル(TWILLWEAVE
MICREL)(バスクテック社(VASCUTEK)、スコットランド、レンフリューシャー(Renfrewshire、Scotland)を含む。生体適合性のある材料の例はさらに、粘膜下組織組織由来の浄化されたコラーゲンベース基質などの細胞外基質(ECM)材料を含む。ECM材料の例は、心膜、胃粘膜下組織、肝臓基底膜、膀胱粘膜下組織、組織粘膜および硬膜を含む。ECM材料の特定の例は、米国特許第6,206,931号に記載されるような小腸粘膜下組織(SIS)であって、この特許は本願明細書に引用にて援用される。
2950951号に記載されるように、ステントの各曲がりに2つの縫合を利用してさらに接続の安定性を高めることが望ましい。
グステントの一体的部分である。内部ステントはグラフト材料55および57で覆われている。ステントグラフト部分65および67は各々中央開口部から離れた追加的Zステント62を有してもよく、これらのステントは内部でも外部でもよい。図5Bを参照して、内部ステント75および76はグラフト材料55および57で覆われており、それぞれのステントグラフト部分78および79の中央開口部から終端開口部まで延在する。これらの内部ステントと可撓性ブリッジ77の部分的ステントとは、接続された単一のジグザグステントの一体的部分である。
Claims (8)
- 腔内人工器官アセンブリであって、
単一の近位開口部(104)ならびに第1および第2の遠位管状レッグ(106,108)を分岐部(110)に有する主要管状本体(102)を含む分岐した人工器官(150)を含み、第1の遠位管状レッグは第1の遠位開口部(107)を有し、第2の遠位管状レッグ(106)は第2の遠位開口部(109)を有し、腔内人工器官アセンブリはさらに、
第1のステントグラフト(81)、第2のステントグラフト(82)、ならびに、第1のステントグラフトおよび第2のステントグラフトの各々の端部の外周の一部に沿って第1のステントグラフトおよび第2のステントグラフト(81,82)の間に延在し、第1のステントグラフトおよび第2のステントグラフトに接続された、可撓性ブリッジ(95)を含む延長人工器官(160)を含み、
第1のステントグラフト(81)は、第2の遠位開口部(109)を係合するようサイズ決めされて構成され、第2のステントグラフトは、第1の遠位開口部(107)を係合するようサイズ決めされて構成され、可撓性ブリッジは、第1および第2のステントグラフトが分岐した人工器官のためのレッグ延長部として機能するように主要管状本体の分岐部にわたって曲げることができる、腔内人工器官アセンブリ。 - 可撓性ブリッジ(95)は第1のステントグラフトおよび第2のステントグラフトに撤回不能に取付けられた、請求項1に記載の腔内人工器官アセンブリ。
- 分岐した人工器官(100)は、主要管状本体と一方の遠位開口部との間に短い方のステントグラフトレッグ(108)を含み、主要管状本体と他方の遠位開口部との間に長い方のステントグラフトレッグ(106)を含む、請求項1または2のいずれかに記載の腔内人工器官アセンブリ。
- 第1のステントグラフト(81)は第2のステントグラフト(82)より長く、第1のステントグラフトは短い方のステントグラフトレッグの遠位開口部を係合するようサイズ決めされて構成され、第2のステントグラフトは長い方のステントグラフトレッグの遠位開口部を係合するようサイズ決めされて構成される、請求項3に記載の腔内人工器官アセ
ンブリ。 - 可撓性ブリッジ(95)はワイヤ、または、第1のステントグラフトおよび第2のステントグラフト(81,82)の外周のまわりに部分的に延在する部分的ステントを含む、請求項1から4のいずれかに記載の腔内人工器官アセンブリ。
- 第1のステントグラフトおよび第2のステントグラフト(81,82)は各々可撓性ブリッジ(95)に隣接するステントを含み、可撓性ブリッジ(95)はステントのうち少なくとも1つと一体化している、請求項1から5のいずれかに記載の腔内人工器官アセンブリ。
- 第1のステントグラフト(81)および第2のステントグラフト(82)は、各々中央開口部(85,88)と終端開口部(90,91)とを含み、中央開口部は可撓性ブリッジ(95)に隣接してその対向する両端部にあり、中央開口部および終端開口部は各々内部ステントを含む、請求項1から6のいずれかに記載の腔内人工器官アセンブリ。
- 第1のステントグラフト(81)または第1のステントグラフトおよび第2のステントグラフト(84,82)は、中央開口部と終端開口部との間に少なくとも1つの外部ステントを含む、請求項7に記載の腔内人工器官アセンブリ。
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-
2004
- 2004-12-16 AU AU2004299108A patent/AU2004299108B2/en active Active
- 2004-12-16 US US11/014,669 patent/US8257430B2/en active Active
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EP1696828B1 (en) | 2010-08-25 |
US20050177222A1 (en) | 2005-08-11 |
AU2004299108B2 (en) | 2010-04-22 |
ATE478629T1 (de) | 2010-09-15 |
DE602004028863D1 (de) | 2010-10-07 |
EP1696828A1 (en) | 2006-09-06 |
US8257430B2 (en) | 2012-09-04 |
JP2007514498A (ja) | 2007-06-07 |
WO2005058202A1 (en) | 2005-06-30 |
AU2004299108A1 (en) | 2005-06-30 |
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