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1. 发明申请

WO2006119422A2 IMPROVED CATHETERS 审中-公开
标题翻译：改进的导管
公开(公告)号：WO2006119422A2
公开(公告)日：2006-11-09
申请号：PCT/US2006/017141
申请日：2006-05-02
申请人： PULSAR VASCULAR, INCORPORATED , ESKRIDGE, Joseph , CLARKE, Gilbert
发明人： ESKRIDGE, Joseph , CLARKE, Gilbert
IPC分类号： A61M25/00
CPC分类号： A61M25/0068 , A61M25/0021 , A61M25/0023 , A61M25/0043 , A61M25/0069 , A61M25/008 , A61M2025/0062
摘要： Improved catheters are provided. In one aspect, the catheters have a tapered, atraumatic distal tip. In one embodiment, the outer surface of the distal portion of the catheter has a generally non-cylindrical and substantially triangular cross-sectional configuration. The inner surface cross-sectional configuration of the distal portion of the catheter may match the outer surface, or it may have a cylindrical or oval configuration. The terminal orthogonal surface of the distal catheter tip is chamfered or rounded or contoured. In another aspect, catheters having selectively insertable, or selectively activatable and releasable, stiffening mechanisms are provided. Such catheters may be inserted, navigated and withdrawn from a subject in a relaxed, flexible condition, and stiffening mechanisms are deployed to prevent the catheter from shifting during placement or operation of an accessory device or tool through the catheter.
摘要翻译：提供了改进的导管。在一个方面，导管具有锥形的无创伤的远端。在一个实施例中，导管的远侧部分的外表面具有大致非圆柱形且基本上三角形的横截面构造。导管的远端部分的内表面横截面构型可以与外表面匹配，或者其可以具有圆柱形或椭圆形构型。远侧导管尖端的终端正交表面是倒角或圆形或轮廓。在另一方面，提供了具有可选择地插入或选择性可激活和可释放的加强机构的导管。这样的导管可以在松弛的柔性状态下被插入，导航和从受试者中取出，并且展开加强机构以防止在附件装置或工具穿过导管的放置或操作过程中导管移动。

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