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    • 2. 发明申请
    • CATHETER FLUSHING MANDREL
    • 导管冲洗机
    • WO2009131750A1
    • 2009-10-29
    • PCT/US2009/035967
    • 2009-03-04
    • MEDTRONIC VASCULAR INC.BERTHIAUME, WilliamTRAN, DonCOLLINS, Chris
    • BERTHIAUME, WilliamTRAN, DonCOLLINS, Chris
    • A61M39/16
    • A61M25/00A61F2/95A61M25/0017A61M25/01A61M25/0102A61M2025/0079A61M2025/0183
    • A mandrel includes a mandrel body with a proximal major diameter barrel section, a diameter reducing/tapered portion and a distal minor diameter barrel section. The tapered portion connects the proximal major diameter barrel section and distal minor diameter barrel section. The proximal major diameter barrel section has a major diameter, the distal minor diameter barrel section has a minor diameter, the minor diameter less than the major diameter. The minor diameter is less than a diameter of an inner lumen of a coaxial catheter, and the major diameter exceeds the inner diameter of the outer lumen guidewire exit port of the coaxial catheter, and the tapered portion is sized to form a fluid seal the inner diameter of the outer lumen guidewire exit port. The distal minor diameter barrel section of the mandrel occupies and substantially seals and prevent flow through it to the catheter distal end guidewire entry port.
    • 心轴包括具有近端大直径圆筒部分,直径减小/锥形部分和远端小直径圆筒部分的心轴本体。 锥形部分连接近端大直径筒部和远端小直径筒部。 近端大直径筒部分具有大直径,远端较小直径筒部分具有小直径,小直径小于大直径。 小直径小于同轴导管的内腔的直径,并且大直径超过同轴导管的外腔导丝出口的内径,并且锥形部分的尺寸设定成形成流体密封内 外腔导丝出口的直径。 心轴的远端较小直径的筒部分占据并基本上密封并防止流过其到导管远端导丝入口。