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    • 1. 发明申请
    • BALLOON CATHETER WITH SELF-ACTUATING PURGING VALVE
    • 带自动执行阀的气缸导管
    • WO2006020523A1
    • 2006-02-23
    • PCT/US2005/027968
    • 2005-08-05
    • MEDTRONIC VASCULAR, INC.BAGAOISAN, Celso
    • BAGAOISAN, Celso
    • A61M25/00
    • A61M25/104A61F2/958A61M25/0075A61M2025/0076A61M2025/1077A61M2025/1093
    • A system for treating a vascular condition comprises a catheter having at least one lumen, a stem received within a distal portion of the lumen, a sealing member positioned on the stem, and a balloon operably attached to a distal portion of the catheter. The stem includes a proximal body portion, a sealing portion, and a shoulder portion. The sealing member is movable with hydrodynamic force from an initial air-release position on the proximal body portion of the stem to a sealed position on the sealing portion of the stem. A method for purging a balloon catheter prior to use comprises injecting a liquid into a proximal end of a balloon catheter lumen. The injected liquid forces air through a gap between the lumen wall and a sealing member. The liquid then contacts the sealing member and repositions it to a sealed position.
    • 用于治疗血管病症的系统包括具有至少一个腔的导管,容纳在所述腔的远端部分内的杆,位于所述杆上的密封构件和可操作地附接到所述导管的远端部分的球囊。 杆包括近端主体部分,密封部分和肩部。 密封构件可以通过液压力从杆的近端主体部分上的初始释放位置移动到杆的密封部分上的密封位置。 用于在使用之前吹扫气囊导管的方法包括将液体注射到气囊导管腔的近端中。 注入的液体迫使空气通过管腔壁和密封构件之间的间隙。 然后液体接触密封构件并将其重新定位到密封位置。