JP2007530213A - 医療用デバイス - Google Patents
医療用デバイス Download PDFInfo
- Publication number
- JP2007530213A JP2007530213A JP2007506113A JP2007506113A JP2007530213A JP 2007530213 A JP2007530213 A JP 2007530213A JP 2007506113 A JP2007506113 A JP 2007506113A JP 2007506113 A JP2007506113 A JP 2007506113A JP 2007530213 A JP2007530213 A JP 2007530213A
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- JP
- Japan
- Prior art keywords
- membrane
- stent
- mechanically expandable
- aneurysm
- expandable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
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- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
- A61B17/12118—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm for positioning in conjunction with a stent
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- A61F2230/0067—Three-dimensional shapes conical
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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- A61F2250/0037—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in height or in length
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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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
- A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
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Abstract
Description
本発明は、動脈瘤を処置するために身体の血管中に挿入されるための医療用デバイスに関する。
血管の疾患は、出血、血管の閉塞を引き起こすアテローム性動脈硬化症、血管奇形および腫瘍を含む。脳内の血管閉塞または動脈瘤の破裂は、脳卒中を引き起こす。頭蓋内動脈によって供給される動脈瘤は、脳内で、それらの塊およびサイズが、脳卒中または脳卒中の症状を引き起こし、動脈瘤の除去またはその他の治療的介入のために手術を必要とする点まで成長し得る。
第1の好ましい局面では、動脈瘤を処置するために身体の脈管中に挿入される医療用デバイスが提供され、このデバイスは、第1の位置から第2の位置に拡大可能な機械的に拡大可能なデバイスであって、上記第2の位置に、上記機械的に拡大可能なデバイスの外面が、上記脈管を通る流体経路を維持するようにこの脈管の内面と係合するように半径方向の外方に拡大される機械的に拡大可能なデバイス;およびこの機械的に拡大可能なデバイスの拡大に応答して第1の位置から第2の位置に拡大可能な膜であって、この第2の位置に拡大されるとき、上記動脈瘤の血液循環を妨害し、そしてこの膜の少なくとも一部分が上記機械的に拡大可能なデバイスに固定され、この第2の位置に拡大されるとき、上記機械的に拡大可能なデバイスに対するこの膜の位置を維持する膜を備える。
移植可能な医療用デバイスは、ヒト身体の血管内系内の所望の部位に薬物または試薬を送達するための物理的構造を含む。移植可能な医療用デバイスは、特定の適用に依存して多様化した形状および形態をとり得る。一般的な移植可能な医療用デバイスは、ステント、大静脈フィルター、移植片および動脈瘤コイルを含む。ステントが説明されるけれども、開示される構造および方法は、すべてのその他の移植可能な医療用デバイス適用可能であることを注記する。
− 頭蓋内ステント202は、圧縮された送達モードで0.020インチのプロフィールを有する。
− 頭蓋内ステント202は、ステントプロフィール0.020インチ〜0.022イントを有する低0.014インチ〜0.016インチのようなプロフィールをもつ送達カテーテル上に圧縮されるように設計される。頭蓋内ステント202は、一様な材料分布および壁適用範囲を有し、必要な脈管支持を生成する。材料比は、展開直径に依存して10〜17%の範囲である。
− 頭蓋内ステント202は、0.0028インチよりは大きくないストラット厚みおよび幅を有する。ストラット寸法は、最も少ない侵入性ステント材料容量を生成し、そして脈管損傷スコアを減少するように選択される。
Claims (38)
- 動脈瘤を処置するために身体の脈管中に挿入される医療用デバイスであって:
第1の位置から第2の位置に拡大可能な機械的に拡大可能なデバイスであって、該第2の位置に、該機械的に拡大可能なデバイスの外面が、該脈管を通る流体経路を維持するように該脈管の内面と係合するように半径方向の外方に拡大される機械的に拡大可能なデバイス;および
該機械的に拡大可能なデバイスの拡大に応答して第1の位置から第2の位置に拡大可能な膜であって、該第2の位置に拡大されるとき、該動脈瘤の血液循環を妨害し、そして該膜の少なくとも一部分が該機械的に拡大可能なデバイスに固定され、該第2の位置に拡大されるとき、該機械的に拡大可能なデバイスに対する該膜の位置を維持する膜、を備える、デバイス。 - 前記機械的に拡大可能なデバイスが、複数の相互連結するストラットであってそれらの間に介在空間を有するストラットによって規定される、ほぼ管状の構造を備える、請求項1に記載のデバイス。
- 前記膜が、生体適合性かつエラストマー性ポリマーから作製される、請求項1に記載のデバイス。
- 前記膜が、約20〜100ミクロンのポアまたは穴サイズを備えた約0.001〜0.005インチの厚みを有する、請求項1に記載のデバイス。
- 前記膜が、ポリマー性材料または生分解性材料から作製される、請求項1に記載のデバイス。
- 前記生分解性材料が、薬物または試薬と混合された複数の下層を形成する、請求項5に記載のデバイス。
- 前記膜が、等方性拡大をし得る、請求項1に記載のデバイス。
- 前記膜が、前記デバイスの外面上に配置される、請求項1に記載のデバイス。
- 前記膜が、前記デバイスを完全に取り囲む、請求項1に記載のデバイス。
- 前記膜が、前記デバイスの一部分を周縁方向に取り囲む、請求項1に記載のデバイス。
- 前記膜が、前記デバイスの一部分を覆う、請求項1に記載のデバイス。
- 前記膜が、非多孔性および非透過性であり、前記動脈瘤への血液循環を防ぐ、請求項1に記載のデバイス。
- 前記膜が、固形ポリマーから作製される、請求項12に記載のデバイス。
- 前記膜が、透過性および多孔性である、請求項1に記載のデバイス。
- 前記膜が、主要脳動脈の穿孔および顕微鏡的分枝への血液供給が許容されるが、前記動脈瘤への血液供給が防がれるように穴またはポアを有する、請求項14に記載のデバイス。
- 前記膜が、サイズが20〜100ミクロンの間のポアを有する、請求項15に記載のデバイス。
- 前記膜が、サイズが20〜100ミクロンの間の製作された穴を有する、請求項15に記載のデバイス。
- 前記穴が、レーザー穿孔によって製作される、請求項17に記載のデバイス。
- 前記ポアまたは穴の間の距離が、100μmより小さい、請求項16または17に記載のデバイス。
- 前記膜が、前記機械的に拡大可能なデバイスに固定される複数のポリマー性ストリップを備える、請求項14に記載のデバイス。
- 前記ストリップが0.075mmより短く、そして隣接するストリップ間の距離が100μmより小さい、請求項20に記載のデバイス。
- 前記膜が、前記機械的に拡大可能なデバイスに固定されるメッシュを備える、請求項14に記載のデバイス。
- 前記メッシュの空間が100μmより短く、そして該メッシュの幅が0.025〜0.050mmの間である、請求項22に記載のデバイス。
- 前記動脈瘤が、通常サイズ、巨大または広い頸部の動脈瘤である、請求項1に記載のデバイス。
- 前記機械的に拡大可能なデバイスが、自己拡大可能、またはバルーンで拡大可能である、請求項1に記載のデバイス。
- 前記機械的に拡大可能なデバイスが、ステントである、請求項1に記載のデバイス。
- 前記膜が前記ほぼ管状の構造によって支持され、そして少なくとも1つのストラットに取り付けられる、請求項2に記載のデバイス。
- 前記膜が、前記ステントの公証初期直径に類似の直径を有する管状であり、そしてここで、該膜が、該ステントの外面に配置されるか、該ステント間のストラット間に浸漬被覆または噴霧によって導入される、請求項26に記載のデバイス。
- 前記膜が、前記ステントの外面の一部分上に配置された管状構造のセグメントである、請求項26に記載のデバイス。
- 前記少なくとも1つの試薬が、固形錠剤、液体または粉末からなる群から選択される任意の1つの形態である、請求項6に記載のデバイス。
- 少なくとも1つの放射線不透過性マーカーが前記機械的に拡大可能なデバイス上に提供され、挿入の間またはその後に該デバイスの可視性を改善する、請求項1に記載のデバイス。
- 前記少なくとも1つの放射線不透過性マーカーが、金または白金から作製される、請求項31に記載のデバイス。
- 中央放射線不透過性マーカーおよび端部放射線不透過性マーカーが、前記機械的に拡大可能なデバイス上に提供される、請求項31に記載のデバイス。
- 少なくとも2つの身体の脈管の間の2分枝または3分枝動脈瘤を処置するための医療用デバイスであって:
第1の脈管中に挿入するための第1の機械的に拡大可能なデバイス;
第2の脈管中に挿入するための第2の機械的に拡大可能なデバイス;
ここで、機械的に拡大可能なデバイスの各々は、第1の位置から第2の位置に拡大可能であり、該第2の位置に、該機械的に拡大可能なデバイスの外面が、該脈管を通る流体経路を維持するように該脈管の内面と係合するように半径方向の外方に拡大される機械的に拡大可能である;および
該機械的に拡大可能なデバイスの拡大に応答して第1の位置から第2の位置に拡大可能な膜であって、該第2の位置に拡大されるとき、該動脈瘤の血液循環を妨害し、そして該膜の少なくとも一部分が該機械的に拡大可能なデバイスに固定され、該第2の位置に拡大されるとき、該機械的に拡大可能なデバイスに対する該膜の位置を維持する膜、を備える、デバイス。 - 請求項1に記載の医療用デバイスを作製する方法であって:
ほぼ管状の構造をマンドレル上に配置する工程;および
前記膜を前記機械的に拡大可能なデバイスの外面上に配置する工程、を包含する、請求項1に記載の医療用デバイスを作製する方法。 - 前記方法が:
前記ほぼ管状の構造をマンドレル上に配置する工程;および
前記膜を前記ステントのストラット間に取り込む工程を包含する、請求項26に記載の医療用デバイスを作製する方法。 - 前記配置する工程が:噴霧すること、縫合糸、積層、接着、熱および浸漬被覆からなる群から選択される任意の1つである、請求項35または36に記載の方法。
- 前記ステントが、送達カテーテルによって前記動脈瘤に送達される、請求項26に記載の方法。
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JP2014501563A (ja) * | 2010-11-16 | 2014-01-23 | ダブリュ.エル.ゴア アンド アソシエイツ,インコーポレイティド | 延伸型医療デバイス用のスリーブ |
JP2016179199A (ja) * | 2010-11-16 | 2016-10-13 | ダブリュ.エル.ゴア アンド アソシエイツ,インコーポレイティドW.L. Gore & Associates, Incorporated | 延伸型医療デバイス用のスリーブ |
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Also Published As
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US20070191924A1 (en) | 2007-08-16 |
WO2005094725A1 (en) | 2005-10-13 |
JP2021000552A (ja) | 2021-01-07 |
JP2019048106A (ja) | 2019-03-28 |
JP7222462B2 (ja) | 2023-02-15 |
JP2014195733A (ja) | 2014-10-16 |
JP2023041948A (ja) | 2023-03-24 |
EP1734897A4 (en) | 2010-12-22 |
EP1734897A1 (en) | 2006-12-27 |
JP2015062831A (ja) | 2015-04-09 |
JP5046919B2 (ja) | 2012-10-10 |
EP1732467A1 (en) | 2006-12-20 |
US8915952B2 (en) | 2014-12-23 |
EP1732467A4 (en) | 2010-09-15 |
JP2011067663A (ja) | 2011-04-07 |
CN101394808A (zh) | 2009-03-25 |
JP2013066749A (ja) | 2013-04-18 |
US20070100430A1 (en) | 2007-05-03 |
JP2020114545A (ja) | 2020-07-30 |
WO2005094726A1 (en) | 2005-10-13 |
JP2017023876A (ja) | 2017-02-02 |
US9585668B2 (en) | 2017-03-07 |
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