JP2022525317A - 血管障害の治療のための可撓性継合部を有するフィラメント状デバイス - Google Patents
血管障害の治療のための可撓性継合部を有するフィラメント状デバイス Download PDFInfo
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Abstract
Description
該当せず。
本明細書のデバイスおよび方法の実施形態は、哺乳類の体内で、管状血管を通る、または嚢空洞または血管障害の小型内部チャンバの中への流体の流れの遮断を対象とする。より具体的には、本明細書の実施形態は、具体的には患者の脳動脈瘤の治療を対象とする、いくつかの実施形態を含む、患者の血管障害の治療のためのデバイスおよび方法を対象とする。
より大きい動脈瘤では、嚢内デバイスが、動脈瘤の中に遊走し、頸部領域から離れ得る、圧密化のリスクもまた存在する。
ビームの偏向=5FL4/384EI
式中、F=力、
L=ビームの長さ、
E=ヤング率、および
I=慣性モーメントである。
I=πd4/64
式中、dは、ワイヤまたはフィラメントの直径である。
Claims (40)
- 患者の脳動脈瘤の治療のためのデバイスであって、
第1の浸透性シェルであって、前記第1の浸透性シェルは、近位端と、遠位端と、カテーテル管腔内での送達のために構成される半径方向に拘束された伸長状態と、前記半径方向に拘束された状態に対して縦方向に短縮された構成を伴う拡張状態と、ともに織り合わされ、メッシュを形成する複数の伸長フィラメントとを有し、前記拡張状態は、陥凹された区分を伴う近位端を有する、第1の浸透性シェルと、
第2の浸透性シェルであって、前記第2の浸透性シェルは、近位端と、遠位端と、カテーテル管腔内での送達のために構成される半径方向に拘束された伸長状態と、前記半径方向に拘束された状態に対して縦方向に短縮された構成を伴う拡張状態と、ともに織り合わされ、メッシュを形成する複数の伸長フィラメントとを有し、前記第2の浸透性シェルの拡張状態は、前記第1の浸透性シェルの陥凹された区分内に着座するように構成される、第2の浸透性シェルと
を備え、
前記第1の浸透性シェルの近位端は、前記第2の浸透性シェルの遠位端と結合される、デバイス。 - 前記陥凹された区分は、形状が凹面である、請求項1に記載のデバイス。
- 前記第2の浸透性シェルの拡張状態はさらに、遠位凸面区分を前記第2の浸透性シェルの遠位端に含有し、前記遠位凸面区分は、前記第1の浸透性シェルの伸長近位延在部を受容するように構成される、請求項2に記載のデバイス。
- 前記第1および第2の浸透性シェルは、同一の複数のフィラメントから形成される、請求項1に記載のデバイス。
- 前記第1の浸透性シェルを形成する前記複数のフィラメントは、前記第2の浸透性シェルを形成する前記複数のフィラメントと異なる、請求項1に記載のデバイス。
- 前記第2の浸透性シェルの近位端に取り付けられる近位ハブをさらに備える、請求項1に記載のデバイス。
- 前記第1の浸透性シェルの遠位端に取り付けられる遠位ハブをさらに備える、請求項1に記載のデバイス。
- 前記第2の浸透性シェルの近位端は、プッシャに結合される、請求項1に記載のデバイス。
- 脳側壁動脈瘤治療デバイスであって、
第1の浸透性シェルであって、前記第1の浸透性シェルは、近位端と、遠位端と、カテーテル管腔内での送達のために構成される半径方向に拘束された伸長状態と、前記半径方向に拘束された状態に対して縦方向に短縮された構成を伴う拡張状態と、ともに織り合わされ、メッシュを形成する複数の伸長フィラメントとを有し、前記拡張状態は、陥凹された区分を伴う近位端を有する、第1の浸透性シェルと、
第2の浸透性シェルであって、前記第2の浸透性シェルは、近位端と、遠位端と、カテーテル管腔内での送達のために構成される半径方向に拘束された伸長状態と、前記半径方向に拘束された状態に対して縦方向に短縮された構成を伴う拡張状態と、ともに織り合わされ、メッシュを形成する複数の伸長フィラメントとを有し、前記第2の浸透性シェルの遠位端は、前記第1の浸透性シェルの近位端に結合され、前記第2の浸透性シェルの近位端は、送達プッシャと結合される、第2の浸透性シェルと
を備え、
前記第2の浸透性シェルは、前記第1の浸透性シェルを前記脳側壁動脈瘤の頸部領域にわたって位置付けるために、前記第1の浸透性シェルの陥凹された区分に対して力を付与するように構成される、デバイス。 - 前記第1の浸透性シェルはさらに、近位端を有する伸長近位延在部を備え、前記伸長近位延在部の近位端は、前記陥凹された区分内に着座する、請求項9に記載のデバイス。
- 前記第1の浸透性シェルはさらに、伸長遠位延在部と、遠位凹面区分とを備え、前記伸長遠位延在部の少なくとも一部は、前記第1の浸透性シェルの遠位凹面区分内に着座する、請求項10に記載のデバイス。
- 前記伸長遠位延在部は、前記第1の浸透性シェルの伸長近位延在部より長い、請求項11に記載のデバイス。
- 前記第1の浸透性シェルおよび第2の浸透性シェルは、前記伸長近位延在部を通して結合される、請求項10に記載のデバイス。
- 前記伸長近位延在部は、ワイヤ編組である、請求項10に記載のデバイス。
- 前記伸長近位延在部は、前記第1の浸透性シェルが前記第2の浸透性シェルの縦軸に対してある角度で偏向することを可能にする、請求項10に記載のデバイス。
- 前記伸長近位延在部の長さは、前記陥凹された区分の高さより小さい、請求項10に記載のデバイス。
- 前記第1の浸透性シェルは、前記プッシャおよび前記第2の浸透性シェルによって形成される縦軸に対して偏向することが可能である、請求項9に記載のデバイス。
- 前記第1の浸透性シェルは、前記プッシャおよび前記第2の浸透性シェルによって形成される縦軸に対して最大約180°の角度で偏向することが可能である、請求項15に記載のデバイス。
- 患者の脳動脈瘤の治療のためのデバイスであって、
第1の浸透性シェルであって、前記第1の浸透性シェルは、近位端と、遠位端と、カテーテル管腔内での送達のために構成される半径方向に拘束された伸長状態と、前記半径方向に拘束された状態に対して縦方向に短縮された構成を伴う拡張状態と、ともに織り合わされ、メッシュを形成する複数の伸長フィラメントとを有し、前記拡張状態は、動脈瘤の頸部にわたって着座するように適合される陥凹された区分を伴う近位端を有する、第1の浸透性シェルと、
第2の浸透性シェルであって、前記第2の浸透性シェルは、近位端と、遠位端と、カテーテル管腔内での送達のために構成される半径方向に拘束された伸長状態と、前記半径方向に拘束された状態に対して縦方向に短縮された構成を伴う拡張状態と、ともに織り合わされ、メッシュを形成する複数の伸長フィラメントとを有し、前記第2の浸透性シェルの遠位端は、前記第1の浸透性シェルの近位端と結合される、第2の浸透性シェルと
を備え、
前記第2の浸透性シェルは、前記第1の浸透性シェルの陥凹された区分を占有し、前記動脈瘤の頸部にわたる表面被覆を増強させるように構成される、デバイス。 - 前記第2の浸透性シェルは、前記第1の浸透性シェルが、前記拡張状態にあり、前記第2の浸透性シェルが、その拡張状態にあるとき、前記第1の浸透性シェルの最も近位の縁によって画定された平面を越えて近位に延在せず、それによって、前記第1の浸透性シェルの陥凹された区分を占有するように構成される、請求項19に記載のデバイス。
- 内部空洞と、頸部とを有する脳動脈瘤を治療するための方法であって、
マイクロカテーテル内のインプラントを脳動脈内の着目領域まで前進させるステップであって、前記インプラントは、
第1の浸透性シェルであって、前記第1の浸透性シェルは、近位端と、遠位端と、前記マイクロカテーテルの管腔内での送達のために構成される半径方向に拘束された伸長状態と、前記半径方向に拘束された状態に対して縦方向に短縮された構成を伴う拡張状態と、ともに織り合わされ、メッシュを形成する複数の伸長フィラメントとを有し、前記拡張状態は、凹面区分を伴う近位端を有する、第1の浸透性シェルと、
第2の浸透性シェルであって、前記第2の浸透性シェルは、近位端と、遠位端と、前記マイクロカテーテルの管腔内での送達のために構成される半径方向に拘束された伸長状態と、前記半径方向に拘束された状態に対して縦方向に短縮された構成を伴う拡張状態と、ともに織り合わされ、メッシュを形成する複数の伸長フィラメントとを有し、前記第2の浸透性シェルの拡張状態は、前記第1の浸透性シェルの凹面区分内に着座するように構成され、前記第2の浸透性シェルの遠位端は、前記第1の浸透性シェルの近位端と結合される、第2の浸透性シェルと
を備える、ステップと、
前記第1の浸透性シェルを前記脳動脈瘤内で展開するステップであって、前記第1の浸透性シェルは、前記拡張状態に、前記動脈瘤の内部空洞内で拡張する、ステップと、
前記第2の浸透性シェルを展開するステップであって、前記第2の浸透性シェルは、前記拡張状態に拡張し、前記第1の浸透性シェルの凹面区分内に着座する、ステップと、
前記第2の浸透性シェルを展開後、前記マイクロカテーテルを前記着目領域から抜去するステップと
を含む、方法。 - 前記第1の浸透性シェルはさらに、近位端を有する伸長近位延在部を備え、前記伸長近位延在部の近位端は、前記凹面区分内に着座する、請求項21に記載の方法。
- 前記伸長近位延在部の長さは、前記凹面区分の高さより小さい、請求項21に記載の方法。
- 前記第1の浸透性シェルおよび第2の浸透性シェルは、前記伸長近位延在部を通して結合される、請求項22に記載の方法。
- 前記第2の浸透性シェルは、前記第1および第2の浸透性シェルの両方が、その拡張状態にあるとき、前記第1の浸透性シェルの最も近位の縁によって画定された平面を越えて近位に延在しない、請求項21に記載の方法。
- 前記第2の浸透性シェルの拡張状態はさらに、遠位凹面区分を前記第2の浸透性シェルの遠位端に含有し、前記遠位凹面区分は、前記第1の浸透性シェルの伸長近位延在部を受容するように構成される、請求項22に記載の方法。
- 前記第1および第2の浸透性シェルは、同一の複数のフィラメントから形成される、請求項21に記載の方法。
- 前記第1の浸透性シェルを形成する前記複数のフィラメントは、前記第2の浸透性シェルを形成する前記複数のフィラメントと異なる、請求項21に記載の方法。
- 前記第2の浸透性シェルの近位端に取り付けられる近位ハブをさらに備える、請求項21に記載の方法。
- 前記第1の浸透性シェルの遠位端に取り付けられる遠位ハブをさらに備える、請求項21に記載の方法。
- 前記第2の浸透性シェルの近位端は、プッシャに結合される、請求項21に記載の方法。
- 前記第1の浸透性シェルはさらに、伸長遠位延在部と、遠位凹面区分とを備え、前記伸長遠位延在部の少なくとも一部は、前記第1の浸透性シェルの遠位凹面区分内に着座する、請求項22に記載の方法。
- 前記伸長遠位延在部は、前記第1の浸透性シェルの伸長近位延在部より長い、請求項32に記載の方法。
- 前記伸長近位延在部は、ワイヤ編組である、請求項22に記載の方法。
- 前記第1の浸透性シェルは、前記プッシャおよび前記第2の浸透性シェルによって形成される縦軸に対して偏向することが可能である、請求項21に記載の方法。
- 前記第1の浸透性シェルは、前記プッシャおよび前記第2の浸透性シェルによって形成される縦軸に対して最大約180°の角度で偏向することが可能である、請求項35に記載の方法。
- 前記伸長近位延在部は、前記第1の浸透性シェルが、前記プッシャおよび前記第2の浸透性シェルによって形成される縦軸に対してある角度で偏向することを可能にする、請求項22に記載の方法。
- 前記第1の浸透性シェルは、前記第2の浸透性シェルより可撓性である、請求項21に記載の方法。
- 前記第2の浸透性シェルは、前記第1の浸透性シェルより堅い、請求項21に記載の方法。
- 前記第2の浸透性シェルを前記プッシャから取り外すステップをさらに含む、請求項31に記載の方法。
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EP3908208A1 (en) | 2021-11-17 |
US20220378435A1 (en) | 2022-12-01 |
US11291453B2 (en) | 2022-04-05 |
WO2020190630A1 (en) | 2020-09-24 |
CN118593044A (zh) | 2024-09-06 |
CN113573650A (zh) | 2021-10-29 |
JP7483743B2 (ja) | 2024-05-15 |
US20200289125A1 (en) | 2020-09-17 |
EP3908208A4 (en) | 2022-10-19 |
CN113573650B (zh) | 2024-05-28 |
JP2024102213A (ja) | 2024-07-30 |
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