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    • 2. 发明申请
    • A PUNCTURABLE CATHETER
    • 可调式导管
    • WO2004064891A2
    • 2004-08-05
    • PCT/US2004/001241
    • 2004-01-15
    • GORE ENTERPRISE HOLDINGS, INC.ARMSTRONG, Joseph, R.CULLY, Edward, H.FLURY, Keith, M.VONESH, Michael, J.
    • ARMSTRONG, Joseph, R.CULLY, Edward, H.FLURY, Keith, M.VONESH, Michael, J.
    • A61M
    • A61M25/0043A61F2/958A61M25/005A61M25/0052A61M25/10A61M2025/0183A61M2025/0188A61M2025/1056A61M2025/1081
    • A catheter provided with a guidewire catheter lumen having a thin covering that is easily punctured by a guidewire at virtually any desired point along the catheter length. The thin covering may be integral with the catheter shaft, or may be a separate component that covers only the portion of the catheter shaft immediately adjacent the outer portion of the guidewire lumen, or may be a thin tubular construct that surrounds the entire catheter shaft. The covering is preferably relatively translucent, allowing for good visualization of the location of the end of the guidewire to enable puncturing of the covering at the desired location along the length of the catheter shaft. The covering is also preferably tear resistant at puncture sites. The catheter shaft is preferably made of a material having a color that provides good visibility against an operating field, and more preferably is phosphorescent either entirely or in part. Materials suitable for the catheter shaft are polymeric materials well known in the art; the catheter shaft may optionally be provided with metallic stiffening components such as wires or hypotubes along all or part of the catheter length.
    • 导管,其具有导线导管管腔,该导管管腔具有薄的覆盖层,其在导管长度的几乎任何所需点处被导丝容易地刺穿。 薄的覆盖物可以与导管轴成一体,或者可以是仅覆盖导管轴的紧邻导丝管腔的外部的部分的单独的部件,或者可以是围绕整个导管轴的薄的管状结构。 覆盖物优选地是相对半透明的,允许良好地可视化导丝端部的位置,以使得能够沿着导管轴的长度在期望的位置刺穿覆盖物。 覆盖物也优选在穿刺部位具有抗撕裂性。 导管轴优选由具有对操作场提供良好可见性的颜色的材料制成,更优选地,全部或部分地是磷光。 适用于导管轴的材料是本领域公知的聚合材料; 导管轴可以可选地沿着导管长度的全部或部分设置有金属加强部件,例如电线或海波管。