JP2021517483A - ダブルステント - Google Patents
ダブルステント Download PDFInfo
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- JP2021517483A JP2021517483A JP2020548662A JP2020548662A JP2021517483A JP 2021517483 A JP2021517483 A JP 2021517483A JP 2020548662 A JP2020548662 A JP 2020548662A JP 2020548662 A JP2020548662 A JP 2020548662A JP 2021517483 A JP2021517483 A JP 2021517483A
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- Prior art keywords
- stent
- double
- membrane
- stents
- double stent
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- 239000012528 membrane Substances 0.000 claims abstract description 65
- 239000000463 material Substances 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 12
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 9
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical class [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 4
- 229920000704 biodegradable plastic Polymers 0.000 claims description 3
- 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 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000009958 sewing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 208000009443 Vascular Malformations Diseases 0.000 description 4
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 description 4
- 230000002792 vascular Effects 0.000 description 3
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 239000000788 chromium alloy Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 206010002329 Aneurysm Diseases 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001732 thrombotic effect Effects 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
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- A61F2250/0069—Sealing means
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
Claims (19)
- 2つの同軸上に配置されたステント(2、3)を有するダブルステントであって、
第1の膜(4)が、第1の内側ステント(2)と第2の外側ステント(3)との間に配置され、
第2の膜(5)が、前記第2のステント(3)上に配置され、
前記第1および第2の膜(4、5)の膜端部が、前記ステント(2、3)の端部で合わせられ、前記第1のステント(2)の内側の上に折り畳まれそこで固定/取付けられ、
前記第1の内側ステント(2)が第1の材料から作製され、前記第2の外側ステント(3)が第2の材料から作製される、
ことを特徴とする、ダブルステント。 - 前記ステント(2または3)の1つが、コバルト−クロム合金からなることを特徴とする、請求項1に記載のダブルステント。
- 前記ステント(2または3)の1つが、形状記憶合金、特にニチノールからなることを特徴とする、請求項1または2に記載のダブルステント。
- 前記ステント(2または3)の1つが、生分解性プラスチック材料からなることを特徴とする、請求項1または2に記載のダブルステント。
- 前記第2の外側ステント(3)がコバルト−クロム合金からなり、前記第1の内側ステント(2)が形状記憶合金、特にニッケル−チタン合金からなることを特徴とする、請求項1または2に記載のダブルステント。
- 前記第1の内側ステント(2)が、5〜10mm、好ましくは8mmであり、前記第2の外側ステント(3)より長く、その形状記憶特性によって定められる最終形態において、1〜6mm、好ましくは3mmの直径を有し、前記第2の外側ステント(3)の直径よりも大きいことを特徴とする、請求項5に記載のダブルステント。
- 前記第1の内側ステント(2)が、特にとげおよび/またはトランペット形状の拡張の形態で、追加の固定要素を用いてその近位端に提供されることを特徴とする、請求項6に記載のダブルステント。
- 前記第2の外側ステント(3)が形状記憶特性を有するニッケル−チタン合金からなり、前記第1の内側ステント(2)がコバルト−クロム合金からなることを特徴とする、請求項1または2に記載のダブルステント。
- 前記第2の外側ステント(3)が生分解性プラスチック材料からなり、前記第1の内側ステント(2)がコバルト−クロム合金からなることを特徴とする、請求項1または2に記載のダブルステント。
- 両方のステント(2、3)が異なる長さであることを特徴とする、請求項1または2に記載のダブルステント。
- 少なくとも前記第1の内側ステント(2)が、並んで配置され曲がりくねった構造を有する複数のリングセグメント(7、7a、7b)を備え、該リングセグメントが、連接ウェブ(8、9)によって互いに接続されることを特徴とする、請求項1〜10のいずれか1項に記載のダブルステント。
- 前記膜(4、5)が、接着/結合、縫い付け、溶接またはクランプによって固定/取付けされることを特徴とする、請求項1〜11のいずれか1項に記載のダブルステント。
- 前記膜(4、5)が、前記第1のステント(2)の曲がりくねったアーチ中に切り込みを与えることによって形成される柔軟なトング(6)の中または間の所定の位置にクランプされることを特徴とする、請求項1〜12のいずれか1項に記載のダブルステント。
- 前記柔軟なトング(6)が、前記ステントの外側を向くことを特徴とする、請求項13に記載のダブルステント。
- 前記柔軟なトング(6)が、前記第1のステント(6)の外周領域に配置されることを特徴とする、請求項13または14に記載のダブルステント。
- 前記柔軟なトング(6)が、周囲リングセグメント(7a)に近接して配置されるリングセグメント(7b)上に形成されることを特徴とする、請求項15に記載のダブルステント。
- 前記第1の内側ステント(2)および前記第2の外側ステント(3)の連接ウェブ(8)が、それらの間に隙間があって配置されることを特徴とする、請求項11〜16のいずれか1項に記載のダブルステント。
- 前記第1の膜(4)および/または前記第2の膜(5)が、プラスチック材料からなることを特徴とする、請求項1〜17のいずれか1項に記載のダブルステント。
- 前記第1の膜(4)および/または前記第2の膜(5)が、PTFEからなることを特徴とする、請求項18に記載のダブルステント。
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PCT/EP2019/056453 WO2019175330A1 (de) | 2018-03-14 | 2019-03-14 | Doppelstent |
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JP2004522494A (ja) * | 2001-01-12 | 2004-07-29 | ボストン サイエンティフィック リミテッド | ステント内再狭窄のためのステント |
US20050203606A1 (en) * | 2004-03-09 | 2005-09-15 | Vancamp Daniel H. | Stent system for preventing restenosis |
WO2017125312A1 (de) * | 2016-01-19 | 2017-07-27 | Bentley Innomed Gmbh | Doppelstent |
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DE29623983U1 (de) | 1995-04-28 | 2000-12-21 | Impra Inc | Doppelt gestütztes intraluminales Implantat |
DE19720115C2 (de) | 1997-05-14 | 1999-05-20 | Jomed Implantate Gmbh | Stent-Graft |
EP1797843A1 (en) * | 2005-12-14 | 2007-06-20 | Thomas Ischinger | Lesion specific stents, also for ostial lesions, and methods of application |
WO2008100599A1 (en) * | 2007-02-15 | 2008-08-21 | Medtronic, Inc. | Multi-layered stents and methods of implanting |
US20090043330A1 (en) * | 2007-08-09 | 2009-02-12 | Specialized Vascular Technologies, Inc. | Embolic protection devices and methods |
CN102307548B (zh) | 2009-02-09 | 2016-03-30 | 埃芙锡欧医疗器械Ulc | 支架 |
DE102011115902B4 (de) | 2010-12-22 | 2021-07-01 | Bentley Innomed Gmbh | Stent-Graft und dessen Verwendung |
DE102015106052B4 (de) | 2015-04-21 | 2018-03-01 | Nikola Obradovic | Stent-Graft |
DE102016120445A1 (de) * | 2016-10-26 | 2018-04-26 | Manemed Ingenieurbüro für Medizintechnik | Doppelstent |
CN112451170B (zh) * | 2016-12-28 | 2022-09-02 | 先健科技(深圳)有限公司 | 覆膜支架 |
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US20050203606A1 (en) * | 2004-03-09 | 2005-09-15 | Vancamp Daniel H. | Stent system for preventing restenosis |
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EP3764946A1 (de) | 2021-01-20 |
IL277316B1 (en) | 2024-04-01 |
IL277316A (en) | 2020-10-29 |
WO2019175330A1 (de) | 2019-09-19 |
US11819429B2 (en) | 2023-11-21 |
BR112020018582A2 (pt) | 2020-12-29 |
JP7300573B2 (ja) | 2023-06-30 |
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