JP2022023946A - 血管閉塞用デバイス - Google Patents
血管閉塞用デバイス Download PDFInfo
- Publication number
- JP2022023946A JP2022023946A JP2021177822A JP2021177822A JP2022023946A JP 2022023946 A JP2022023946 A JP 2022023946A JP 2021177822 A JP2021177822 A JP 2021177822A JP 2021177822 A JP2021177822 A JP 2021177822A JP 2022023946 A JP2022023946 A JP 2022023946A
- Authority
- JP
- Japan
- Prior art keywords
- braided
- catheter
- loops
- mandrel
- wires
- 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.)
- Granted
Links
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Abstract
Description
Claims (34)
- 内腔の医療処置のための閉塞装置であって、
近位端が閉鎖された円筒状に編組された複数のワイヤから形成された保持部と、閉鎖された近位端は第1の開口を有する。
前記保持部に着脱可能に接続された先端を有するカテーテルと、カテーテルは、カテーテルの遠位端まで延在する通路を有し、保持部分の第1の開口と整列している。
カテーテルの通路内の塞栓材料は、通路を通って、第1の開口を通って、および保持部分の円筒形状内に前進可能である。 - 前記保持部の前記円筒形状内に配置された複数のループを有し、前記第1の開口部と整列した第2の開口部をさらに有する保持部をさらに備える、請求項1に記載の閉塞デバイス。
- 前記中心要素の周辺の周りに配置され、前記複数のループを形成するワイヤが貫通する複数のループ開口を有する中心要素をさらに含み、前記閉塞装置は、前記第2のアパーチャおよび前記第1のアパーチャと整列した第3のアパーチャをさらに備える、請求項1に記載のシステム。
- 前記保持部の前記複数のループは、前記保持部の閉鎖された近位端に配置された第1の複数のループと、前記第1の複数のループの遠位に配置された第2の複数のループとをさらに含む、請求項2に記載の閉塞装置。
- 前記保持部の閉鎖された近位端は、それらの端部で互いに接続された複数の三角形のフラップから形成される、請求項1に記載の閉塞装置。
- 前記保持部分の閉じた近位端は、前記保持部分の前記閉鎖された近位端の前記第1の開口と位置合わせされた通路を有する円筒形マーカバンドで終端する、請求項1に記載の閉塞装置。
- 前記閉鎖近位端は、前記閉鎖された近位端が前記複数の閉鎖された近位端の任意の自由端および自由端を含まないように、前記閉塞装置の軸の周りに環状に配置された複数の相互接続ループを有する編組閉鎖端をさらに備えるワイヤ。
- 前記保持部分は、前記カテーテルの前記遠位端から取り外し可能である、請求項1に記載の閉塞装置。
- 前記カテーテルの前記遠位端は、前記保持部分にさらに接続された犠牲材料をさらに含み、前記カテーテルの前記遠位端は、前記犠牲材料の近傍に配置され、前記犠牲材料を溶融させるヒーターをさらに含み保持部分をカテーテルから取り外す、請求項1に記載の閉塞デバイス。
- 内腔の医療処置のための閉塞装置であって、
複数の編組線から形成され、送達装置から選択的に取り外し可能な三次元構造体と、
前記三次元構造体は、前記送達装置内で線形圧縮形状を有し、前記三次元構造体は、前記送達装置の遠位端部の軸から、長手方向に角度を付けて軸方向にオフセットして膨張する拡張状態を有する。 - 前記三次元構造の遠位端と近位端との間に、前記三次元構造の側部に沿って接続されたテザーをさらに備え、前記三次元構造をテザーの方向に湾曲させることを特徴とする請求項10に記載の閉塞デバイス。
- 前記3次元構造の遠位端と近位端との間で縦方向に直列に整列された複数のテザーをさらに備える、請求項10に記載の閉塞デバイス。
- 前記3次元構造の第1の側に沿って接続された第1のテザーと、前記3次元構造の第2の側に沿って接続された第2のテザーとをさらに備え、
3次元構造体を閉塞装置の軸線から離れるように湾曲させるように、3次元構造体の第2の側に配置される。 - テザーが、弾性ポリマー、延伸ニチノールまたはステンレス鋼ばねコイル、ニチノールまたはステンレス鋼ワイヤ、形状記憶ワイヤまたはリボン、またはプラチナまたはタンタルワイヤを含む、請求項11に記載の閉塞装置。
- 前記三次元構造体の前記拡張状態は、前記送達装置の前記遠位端部の前記軸線から長手方向に角度を付けて軸方向にオフセットして拡張するようにヒートセットされる、請求項10に記載の閉塞装置。
- 前記3次元構造は、第1の円筒形部分と、前記第1の円筒形部分よりも小さく、前記第1の円筒形部分の端部に取り付けられた第2の円筒形部分とを有するマンドレルの上に編組メッシュ構造を配置することによって作成される、請求項10に記載の閉塞装置。前記編組メッシュ構造体と前記マンドレルとを加熱して、前記編組メッシュ構造体に前記マンドレルの形状を付与することを特徴とする請求項1に記載の方法。
- 前記カテーテルが、前記カテーテルから前記三次元構造の分離を引き起こすように構成された加熱コイルをさらに備える、請求項10に記載の閉塞装置。
- インプラント送達システムであって、
インプラント;
その中に連続管腔を有する送達管であって、前記送達管の遠位部分に作動可能に接続されている送達管と、
ヒータと、送達チューブの遠位セクションの円周の一部の周りに延びる犠牲層と、
ヒータが犠牲層を溶融させてインプラントを送達チューブから取り外す。 - 前記犠牲層が、前記ヒーターとカバー片との間に位置する、請求項18に記載のインプラント送達システム。
- 内腔の医療処置のための閉塞装置であって、
円筒状本体と、前記円筒状本体の編組された包囲された端部とを含む三次元構造に編組された複数のワイヤと、編組された包囲された端部は、複数の相互接続されたループを含み、複数のワイヤの任意の自由端から自由である。 - 前記複数のループは、環状構成で配置され、前記編組閉鎖端部の中心に開口部を形成する、請求項20に記載の閉塞装置。
- 前記複数のループの各々は、前記複数のループの2つの隣接するループと織り込まれている、請求項21に記載の閉塞装置。
- 前記複数のループは、環状構成で配置され、前記編組閉鎖端部の中心に開口部を実質的に有さない、請求項20に記載の閉塞装置。
- 前記複数のループの各々は、前記複数のループの対角線または対向するループと織り合わされている、請求項23に記載の閉塞装置。
- 前記閉鎖端部を通って配置され、送達カテーテルにさらに接続されるテザー部材をさらに備え、前記テザー部材は、テザーはカテーテル上の分離機構を介して切断可能である。
- 閉塞装置を編組する方法であって、
円筒状本体と凸状端部とを有するマンドレルを準備する工程と、円筒状本体及び凸状端部は、そこから延びる複数のピンを有する。
マンドレルの凸状端部の中心の周りの複数の絡み合ったループに複数のワイヤを編組するステップと、そして、
凸状の端部の周りおよび円筒形の本体の下に編組パターンを続ける。 - 前記複数のワイヤを複数の織り合わせループに編組するステップは、前記複数の織り合わせループの各々が、前記複数の織り合わせからの少なくとも2つの隣接ループと織り合わせられるように、前記複数のワイヤを編組するステップをさらに含む、請求項26に記載の編組方法。
- 前記複数の織り合わされたループは、円形のパターンで配置され、中央開口部を形成する、請求項27に記載の編組方法。
- 前記複数のワイヤを複数の織り合わせループに編組することは、前記複数の織り合わせループの各々が、前記複数の織り合わせたものからの対向するまたは斜めのループと織り合わせられるように、前記複数のワイヤを編組することをさらに含むループ。
- 前記複数の織り合わせられたループが、中心開口を実質的に有さない円形パターンに配置される、請求項29に記載の編組方法。
- テザー部材を閉塞装置の1つ以上の部分に通してカテーテルに接続することをさらに含む、請求項26に記載の編組方法。
- 閉塞デバイスを形成する方法であって、
第1の円筒形部分および第2の円筒形部分を有するマンドレルを準備するステップと、前記第2円筒部は前記第1円筒部よりも小径であり、前記第2の円筒部は、前記第1の円筒部の中心軸からオフセットした位置で前記第1の円筒部の端部に接続され、
第1円筒部と第2円筒部の上に円筒編組メッシュを配置する工程と、
編組メッシュの一部分を第2の円筒形部分に適合させるステップと、編組されたメッシュをマンドレル上にヒートセットするステップとを含む。 - 前記編組メッシュの前記部分を前記第2の円筒形部分に適合させることが、前記編組メッシュの前記部分の上で前記第2の円筒形部分の上に管を前進させることをさらに含む、請求項32に記載の方法。
- 前記第1の円筒形部分の前記端部は、前記第2の円筒形部分の周りに凹部をさらに含み、前記チューブは前記凹部にさらに前進される、請求項33に記載の方法。
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