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    • 2. 发明申请
    • IRRADIATION CATHETER AND METHOD OF USE
    • 辐射导管及其使用方法
    • WO1996006654A1
    • 1996-03-07
    • PCT/US1995010922
    • 1995-08-28
    • TEIRSTEIN, Paul, S.
    • A61M29/00
    • A61N5/1002A61M25/0023A61M25/0029A61M25/0032A61M25/1002A61M2025/0183A61M2025/1047A61N2005/1003
    • This invention is a catheter (10) for use with a radioactive source (16) within the catheter (10) to irradiate a selected area of a blood vessel in combination with angioplasty procedures, to prevent restenosis of that area of the blood vessel. The catheter (10) has a guidewire channel (18) formed near its distal end to facilitate use of the catheter (10) as a rapid exchange catheter, allowing insertion of the catheter over a guidewire (20) also used in performance of an angioplasty procedure. The catheter (10) can also have a guidewire channel (19) formed near its proximal end to provide O-ring sealing surface and to facilitate free guidewire movement. The catheter (10) also has a closed end (13) to retain the radioactive source (16) within the catheter (10). The catheter (10) can be also be provided with a centering balloon (22) or a set of centering wire loops (50) to center the radioactive source (16) radially within the blood vessel.
    • 本发明是一种与导管(10)内的放射源(16)一起使用以与血管成形术程序结合照射血管的选定区域以防止血管区域再狭窄的导管(10)。 导管(10)具有在其远端附近形成的导丝通道(18),以便于使用导管(10)作为快速交换导管,允许将导管插入也用于执行血管成形术的导丝(20) 程序。 导管(10)还可以具有在其近端附近形成的导丝通道(19),以提供O形环密封表面并促进自由导丝运动。 导管(10)还具有将放射源(16)保持在导管(10)内的封闭端(13)。 导管(10)还可以设置有定心球(22)或一组定心线环(50),以使放射源(16)在血管内径向居中。
    • 5. 发明公开
    • Irradiation catheter
    • 照射导管
    • EP1317945A1
    • 2003-06-11
    • EP03005672.5
    • 1995-08-28
    • Teirstein, Paul S.
    • Teirstein, Paul S.
    • A61N5/10A61M25/10
    • A61N5/1002A61M25/0023A61M25/0029A61M25/0032A61M25/1002A61M2025/0183A61M2025/1047A61N2005/1003
    • This invention is a catheter (10) for use with a radioactive source (16) within the catheter (10) to irradiate a selected area of a blood vessel in combination with angioplasty procedures, to prevent restenosis of that area of the blood vessel. The catheter (10) has a guidewire channel (18) formed near its distal end to facilitate use of the catheter (10) as a rapid exchange catheter, allowing insertion of the catheter over a guidewire (20) also used in performance of an angioplasty procedure. The catheter (10) can also have a guidewire channel (19) formed near its proximal end to provide O-ring sealing surface and to facilitate free guidewire movement. The catheter (10) also has a closed end (13) to retain the radioactive source (16) within the catheter (10). The catheter (10) can be also be provided with a centering balloon (22) or a set of centering wire loops (50) to center the radioactive source (16) radially within the blood vessel.
    • 本发明是一种与导管(10)内的放射源(16)一起使用的导管(10),用于结合血管成形术过程照射血管的选定区域,以防止该血管区域的再狭窄。 导管(10)具有形成在其远端附近的导丝通道(18),以便于将导管(10)用作快速交换导管,允许将导管插入也用于实施血管成形术的导丝(20) 程序。 导管(10)还可以具有在其近端附近形成的导丝通道(19),以提供O形环密封表面并且便于自由导丝移动。 导管(10)还具有封闭端(13)以将放射源(16)保持在导管(10)内。 导管(10)也可以设置有对中球囊(22)或一组对中线环(50)以使放射源(16)在径向内居中在血管内。