JP5061181B2 - 動脈瘤を閉塞するシステム及び方法 - Google Patents
動脈瘤を閉塞するシステム及び方法 Download PDFInfo
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- JP5061181B2 JP5061181B2 JP2009504331A JP2009504331A JP5061181B2 JP 5061181 B2 JP5061181 B2 JP 5061181B2 JP 2009504331 A JP2009504331 A JP 2009504331A JP 2009504331 A JP2009504331 A JP 2009504331A JP 5061181 B2 JP5061181 B2 JP 5061181B2
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- aneurysm
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- A—HUMAN NECESSITIES
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Surgery (AREA)
- Cardiology (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Reproductive Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Neurosurgery (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Description
Claims (23)
- 血管の動脈瘤のネックを覆うように脳血管内に配置可能な動脈瘤閉塞デバイス(10)であって、
このデバイス(10)は、管腔(18)を有する管状要素(14)を備え、この管状要素(14)は、前記管腔(18)を囲み、且つ複数の間隙を包含する閉塞側壁を含んでおり、前記間隙の大きさは、親血管(V)から前記側壁を通る前記動脈瘤内への血液の流れを、血管枝(B)への血液の流れを閉塞することなく、閉塞させるように設定されていると共に、
前記間隙の大きさは、前記側枝血管(B)と前記親血管(V)との間の血液の流れの液圧差に応じて、前記親血管(V)と血管枝(B)との間の前記側壁を通る流体の流れを可能とするように調整され、
前記管状要素(14)が、前記間隙を間に有する複数のバンドと、前記側壁の基端部から前記側壁の末端部まで伸びる少なくとも二つの細長い支柱(32)とを含み、各バンドが、前記細長い支柱(32)の一つに接続された少なくとも一端を含む閉塞デバイス。 - 前記血管(B)と前記親血管(V)との間の血液の流れの液圧差により、前記間隙を包囲する材料の撓みが生じることにより、前記間隙は、前記液圧差に応じて拡張可能であることにより、前記側壁を通る流体の流れを可能とする請求項1に記載の閉塞デバイス。
- 各バンド(42)が、前記デバイスの末端領域にて対応する前記細長い支柱(32)に接続された末端と、前記デバイスの基端部分(26)にてストラット(36)に接続された基端とを含む請求項1に記載の閉塞デバイス。
- 前記バンドが、前記液圧差に応じて可撓であることにより前記間隙が拡張する請求項2に記載の閉塞デバイス。
- 前記バンドが互いに平行である請求項1に記載の閉塞デバイス。
- 前記細長部材が、前記側壁の基端部から前記側壁の末端部まで縦方向に延伸する請求項1に記載の閉塞デバイス。
- 前記細長い支柱(32a,32b)がそれらの基端部と末端部との間に湾曲を含み、コラム強度を著しく損なわずに柔軟性を加える請求項1に記載の閉塞デバイス。
- 前記管状要素が、2個と8個との間の細長部材を含む請求項1に記載の閉塞デバイス。
- 前記細長い支柱(32a,32b)が、前記基端部から前記末端部まで螺旋状に延伸する請求項1に記載の閉塞デバイス。
- 各々の前記バンドが、一端と他端とを含み、その一端の幅は他端の幅より大きい請求項1に記載の閉塞デバイス。
- 前記バンドが頂端を有するv形のバンドであって、その頂端が縦方向に延伸する請求項1に記載の閉塞デバイス。
- 前記バンドが、前記頂端で結合された広い脚(74b)及び狭い脚(74a)を有し、その広い脚(74b)は狭い脚(74a)よりも幅が広い請求項10に記載の閉塞デバイス。
- 前記管状要素が、入れ子式管状要素であり、一方の管状要素は他方の管状要素内に同軸に配置されて、カバー率の高い中央領域が互いに直接に重なり合う請求項1に記載の閉塞デバイス。
- 前記外部管状要素の前記細長部材が、第一方向に螺旋状に延伸し、且つ前記内部管状要素の前記第二細長部材が、前記第一方向とは反対の第二方向に螺旋状に延伸する請求項13に記載の閉塞デバイス。
- 第一方向が時計方向であり、且つ第二方向が反時計方向である請求項14に記載の閉塞デバイス。
- 第一方向が反時計方向であり、前記第一方向が時計方向である請求項16に記載の閉塞デバイス。
- 前記閉塞デバイスは、前記閉塞側壁における間隙の配置が、前記閉塞側壁の前記外周周辺で機能的に均一であるように構成されている請求項1に記載の閉塞デバイス。
- 前記管状部材が、シース内の圧縮された姿勢から、血管内で拡張された姿勢へ半径方向に拡張可能であり、前記管状部材が、前記圧縮された姿勢において、前記拡張された姿勢における長さよりも或る分量だけ長い長さを有し、その分量は15%よりも小さくなるように制限されている請求項1に記載の閉塞デバイス。
- 前記管状部材は、内径の範囲が1mm乃至2mmのマイクロカテーテルへの挿入に適した直径に圧縮可能であるように大きさが調整される請求項1に記載の閉塞デバイス。
- 前記管状要素が、前記閉塞側壁部の基端に配置された基端区画と、前記閉塞側壁部の末端に配置された末端区画とを含み、前記基端及び末端区画が、血流に対して前記閉塞側壁部よりも閉塞性でない側壁を含む、請求項1に記載の閉塞デバイス。
- 前記側壁は、非網状であって、且つ不織である請求項1に記載の閉塞デバイス。
- 前記バンドと前記細長要素が、管を長さに沿って切断することにより形成される請求項12に記載の閉塞デバイス。
- 前記管状部材が、第一血管内に配置可能な第一端と、第二及び第三血管内に配置可能な分岐区画を有する分岐した第二端とを含む請求項1に記載の閉塞デバイス。
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2007
- 2007-04-06 JP JP2009504331A patent/JP5061181B2/ja active Active
- 2007-04-06 WO PCT/US2007/008655 patent/WO2007117645A2/en active Application Filing
- 2007-04-06 US US11/784,236 patent/US20070239261A1/en not_active Abandoned
- 2007-04-06 CN CN2007800124835A patent/CN101415380B/zh active Active
- 2007-04-06 EP EP07755059A patent/EP2004101A2/en not_active Withdrawn
-
2009
- 2009-08-26 HK HK09107855.0A patent/HK1129558A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
WO2007117645A3 (en) | 2008-01-31 |
EP2004101A2 (en) | 2008-12-24 |
CN101415380B (zh) | 2012-06-20 |
WO2007117645A2 (en) | 2007-10-18 |
JP2009533083A (ja) | 2009-09-17 |
CN101415380A (zh) | 2009-04-22 |
US20070239261A1 (en) | 2007-10-11 |
HK1129558A1 (en) | 2009-12-04 |
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