JP4717423B2 - Z型のひだを持つプロテーゼ移植片 - Google Patents
Z型のひだを持つプロテーゼ移植片 Download PDFInfo
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- JP4717423B2 JP4717423B2 JP2004346918A JP2004346918A JP4717423B2 JP 4717423 B2 JP4717423 B2 JP 4717423B2 JP 2004346918 A JP2004346918 A JP 2004346918A JP 2004346918 A JP2004346918 A JP 2004346918A JP 4717423 B2 JP4717423 B2 JP 4717423B2
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- 239000000463 material Substances 0.000 claims abstract description 73
- 239000002184 metal Substances 0.000 claims description 8
- -1 polypropylene Polymers 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
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- 230000037303 wrinkles Effects 0.000 description 2
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- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
-
- 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
- A61F2/844—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
-
- 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
- A61F2/88—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 formed as helical or spiral coils
-
- 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
- A61F2/89—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
-
- 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
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0058—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements soldered or brazed or welded
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0066—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements stapled
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Description
本発明は、「Z」型または類似の模様に形成されて移植片材料に適用されるひだを利用して内腔の開存性を維持するために移植片に支持を与える手段および方法に関するものである。これは、被覆されたステント、ステント移植片、内部素材(endologs)、または被覆物に対して放射状の支持を与えるために基板(substrate)または足場(scaffold)を要する他の機器の製造において、現在使用される金属基板または足場構造の一部に取って代わるだろう。ひだは、現在利用される機器に類似する一定の機器を用いる移植片材料の指示された部位に形成されてもよい。
本発明の上述した特徴および他の特徴は、本発明の詳細な説明とそれに組み合わされる添付の図面を参照してよく理解されるであろう。以下の図面と説明を通して符号が同一のものは同一の構成要素を示すものとする。
本発明は、動脈等を通る液体流出経路を確立するために形成され、内腔の開存性を維持するために用いられてもよいプロテーゼに関するものである。本発明のプロテーゼは、移植片材料から形成された概して円柱状の本体部位を含む。本発明の好ましい特徴に基づいて、移植片材料の少なくとも一定部位は、断面が幾何学模様で定義される部位で特徴付けられる。
(1) 先端部および基端部を有する実質的に円柱状の中空の本体を備え、前記本体が自己支持型の非金属移植片材料から形成され、前記移植片材料の少なくとも一定部位がZ型模様に配列された複数のひだを含む、内腔の開存性を維持するためのプロテーゼ。
(2) 上記プロテーゼの先端部に接合される先端固定材をさらに含むことを特徴とする実施態様(1)記載のプロテーゼ。
(3) 上記先端固定材は、金属支持構造を含むことを特徴とする実施態様(2)記載のプロテーゼ。
(4) 上記プロテーゼの基端部に接合される基端固定材をさらに含むことを特徴とする実施態様(1)記載のプロテーゼ。
(5) 上記基端固定材は、金属支持構造を含むことを特徴とする実施態様(4)記載のプロテーゼ。
(7) 上記自己支持型の非金属移植片材料の少なくとも一定部位は不織材であることを特徴とする実施態様(1)記載のプロテーゼ。
(8) 上記自己支持型の非金属移植片材料の少なくとも一定部位は編材であることを特徴とする実施態様(1)記載のプロテーゼ。
(9) 上記自己支持型の非金属移植片材料は、ポリエステルを含むことを特徴とする実施態様(1)記載のプロテーゼ。
(10) 上記自己支持型の非金属移植片材料は、ポリプロピレンを含むことを特徴とする実施態様(1)記載のプロテーゼ。
(12) 先端部および基端部を有する中空の本体を備え、前記本体が自己支持型の非金属移植片材料から形成され、前記移植片材料の少なくとも一定部位が、上記本体の柔軟性を維持すると共に放射状の支持を与える模様で配列された複数のひだを含む内腔の開存性を維持するためのプロテーゼ。
(13) 上記ひだは、正弦曲線模様に配列されたことを特徴とする実施態様(12)記載のプロテーゼ。
(14) 上記ひだは、楕円模様に配列されたことを特徴とする実施態様(12)記載のプロテーゼ。
(15) 上記ひだは、斜め模様に配列されたことを特徴とする実施態様(12)記載のプロテーゼ。
(16) 上記ひだは、らせん模様に配列されたことを特徴とする実施態様(12)記載のプロテーゼ。
(17) 非金属移植片材料を含む中空の本体と、前記本体部位に対して放射状の支持を与える手段とを備えた内腔の開存性を維持するためのプロテーゼ。
Claims (11)
- 内腔の開存性を維持するためのプロテーゼにおいて、
先端部、基端部、および長手方向の軸を有する実質的に円柱状の中空の本体を備え、前記本体が自己支持型の非金属移植片材料から形成され、前記移植片材料の少なくとも一部が、Z型模様または正弦曲線模様の、前記長手方向の軸にほぼ平行に配列された複数のひだを表面構造として含む、プロテーゼ。 - 上記プロテーゼの先端部に接合される先端固定材をさらに含む、請求項1記載のプロテーゼ。
- 上記先端固定材は、金属支持構造を含む、請求項2記載のプロテーゼ。
- 上記プロテーゼの基端部に接合される基端固定材をさらに含む、請求項1〜3のいずれかに記載のプロテーゼ。
- 上記基端固定材は、金属支持構造を含む、請求項4記載のプロテーゼ。
- 上記自己支持型の非金属移植片材料の少なくとも一部は織材である、請求項1記載のプロテーゼ。
- 上記自己支持型の非金属移植片材料の少なくとも一部は不織材である、請求項1記載のプロテーゼ。
- 上記自己支持型の非金属移植片材料の少なくとも一部は編材である、請求項1記載のプロテーゼ。
- 上記自己支持型の非金属移植片材料は、ポリエステルを含む、請求項1〜8のいずれかに記載のプロテーゼ。
- 上記自己支持型の非金属移植片材料は、ポリプロピレンを含む、請求項1〜8のいずれかに記載のプロテーゼ。
- 上記自己支持型の非金属移植片材料は、ポリエチレンを含む、請求項1〜8のいずれかに記載のプロテーゼ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/725,147 US7575591B2 (en) | 2003-12-01 | 2003-12-01 | Prosthesis graft with Z pleating |
US725147 | 2003-12-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005161057A JP2005161057A (ja) | 2005-06-23 |
JP4717423B2 true JP4717423B2 (ja) | 2011-07-06 |
Family
ID=34465736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004346918A Active JP4717423B2 (ja) | 2003-12-01 | 2004-11-30 | Z型のひだを持つプロテーゼ移植片 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7575591B2 (ja) |
EP (1) | EP1537836B1 (ja) |
JP (1) | JP4717423B2 (ja) |
AT (1) | ATE427078T1 (ja) |
CA (1) | CA2488954C (ja) |
DE (1) | DE602004020309D1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060155367A1 (en) * | 2005-01-07 | 2006-07-13 | Hines Richard A | Micro-pleated stent assembly |
DE102005019649A1 (de) * | 2005-04-26 | 2006-11-02 | Alveolus Inc. | Knickfester Stent |
DE102005058409B4 (de) * | 2005-12-07 | 2010-01-21 | Tricumed Medizintechnik Gmbh | Gefäßprothese zum Ersatz eines Abschnitts der Aorta oder einer Arterie |
US8550344B2 (en) * | 2006-06-16 | 2013-10-08 | The Invention Science Fund I, Llc | Specialty stents with flow control features or the like |
DE102007008185A1 (de) * | 2007-02-13 | 2008-08-14 | Aesculap Ag & Co. Kg | Non woven Gefäßprothese und Verfahren zu ihrer Herstellung |
US8142490B2 (en) * | 2007-10-24 | 2012-03-27 | Cordis Corporation | Stent segments axially connected by thin film |
US8100960B2 (en) * | 2008-03-20 | 2012-01-24 | Medtronic Vascular, Inc. | Bloused stent-graft and fenestration method |
US10117760B2 (en) | 2009-04-02 | 2018-11-06 | Q3 Medical Devices Limited | Stent |
US20100256731A1 (en) | 2009-04-02 | 2010-10-07 | Mangiardi Eric K | Stent |
US10022164B2 (en) | 2008-06-11 | 2018-07-17 | Eventions, Llc | Orthopedic fastener device |
US11207199B2 (en) | 2008-06-11 | 2021-12-28 | Q3 Medical Devices Limited | Stent with anti-migration devices |
US10245165B2 (en) | 2009-04-02 | 2019-04-02 | Q3 Medical Devices Limited | Stent |
US9375307B2 (en) * | 2008-09-17 | 2016-06-28 | Cook Medical Technologies Llc | Graft fabric crimping pattern |
US20100274276A1 (en) * | 2009-04-22 | 2010-10-28 | Ricky Chow | Aneurysm treatment system, device and method |
US8858613B2 (en) | 2010-09-20 | 2014-10-14 | Altura Medical, Inc. | Stent graft delivery systems and associated methods |
CN103260548B (zh) | 2009-12-01 | 2017-01-18 | 阿尔图拉医疗公司 | 模块化内移植物设备以及相关系统和方法 |
JP2013135794A (ja) * | 2011-12-28 | 2013-07-11 | Asahi Intecc Co Ltd | フローダイバーターステント |
WO2014026173A1 (en) | 2012-08-10 | 2014-02-13 | Cragg Andrew H | Stent delivery systems and associated methods |
US9737426B2 (en) | 2013-03-15 | 2017-08-22 | Altura Medical, Inc. | Endograft device delivery systems and associated methods |
CN107485473B (zh) * | 2017-09-18 | 2019-02-01 | 郭启仓 | 一种下肢动脉硬化用血管撑开装置 |
KR102213862B1 (ko) * | 2019-02-28 | 2021-02-05 | 가톨릭대학교 산학협력단 | 하이브리드 스텐트 유닛 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0833660A (ja) * | 1994-02-08 | 1996-02-06 | Ethicon Inc | 移植片 |
JPH0856968A (ja) * | 1994-08-02 | 1996-03-05 | Meadox Medicals Inc | 薄織布可撓性移植片 |
JPH10277068A (ja) * | 1997-04-08 | 1998-10-20 | Ube Ind Ltd | ステント付き人工血管 |
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NL7603516A (nl) | 1975-12-08 | 1977-06-10 | Meadox Medicals Inc | Werkwijze voor het golven van een buis van thermo- plastisch materiaal en het produkt van deze werk- wijze. |
US5693083A (en) | 1983-12-09 | 1997-12-02 | Endovascular Technologies, Inc. | Thoracic graft and delivery catheter |
US4780344A (en) * | 1986-09-02 | 1988-10-25 | Hoberman Charles S | Reversibly expandable three-dimensional structure |
US5234727A (en) * | 1991-07-19 | 1993-08-10 | Charles Hoberman | Curved pleated sheet structures |
DE4235453C2 (de) | 1992-10-21 | 1995-03-09 | Grundig Emv | Verfahren zur Bestimmung des Belegungszustandes von FDM-Funkübertragungskanälen |
US6352554B2 (en) | 1998-05-08 | 2002-03-05 | Sulzer Vascutek Limited | Prosthetic tubular aortic conduit and method for manufacturing the same |
GB0107910D0 (en) * | 2001-03-29 | 2001-05-23 | Isis Innovation | Deployable stent |
US20040019375A1 (en) | 2002-07-26 | 2004-01-29 | Scimed Life Systems, Inc. | Sectional crimped graft |
-
2003
- 2003-12-01 US US10/725,147 patent/US7575591B2/en active Active
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2004
- 2004-11-26 DE DE602004020309T patent/DE602004020309D1/de active Active
- 2004-11-26 AT AT04257350T patent/ATE427078T1/de not_active IP Right Cessation
- 2004-11-26 EP EP04257350A patent/EP1537836B1/en active Active
- 2004-11-29 CA CA2488954A patent/CA2488954C/en active Active
- 2004-11-30 JP JP2004346918A patent/JP4717423B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0833660A (ja) * | 1994-02-08 | 1996-02-06 | Ethicon Inc | 移植片 |
JPH0856968A (ja) * | 1994-08-02 | 1996-03-05 | Meadox Medicals Inc | 薄織布可撓性移植片 |
JPH10277068A (ja) * | 1997-04-08 | 1998-10-20 | Ube Ind Ltd | ステント付き人工血管 |
Also Published As
Publication number | Publication date |
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EP1537836B1 (en) | 2009-04-01 |
CA2488954A1 (en) | 2005-06-01 |
JP2005161057A (ja) | 2005-06-23 |
DE602004020309D1 (de) | 2009-05-14 |
CA2488954C (en) | 2011-01-04 |
EP1537836A2 (en) | 2005-06-08 |
ATE427078T1 (de) | 2009-04-15 |
US20050119730A1 (en) | 2005-06-02 |
EP1537836A3 (en) | 2007-10-03 |
US7575591B2 (en) | 2009-08-18 |
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