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    • 4. 发明申请
    • CATHETER SHAFT
    • 导管轴
    • WO2002074380A1
    • 2002-09-26
    • PCT/US2002/008311
    • 2002-03-18
    • LUMEND, INC.SPARKS, Kurt, D.KUPIECKI, David, J.DELL, Kent, D.
    • SPARKS, Kurt, D.KUPIECKI, David, J.DELL, Kent, D.
    • A61M25/00
    • A61M25/0043A61M25/0009A61M25/0045A61M2025/006
    • A catheter instrument having a shaft for use in small openings where enhanced longitudinal dimensional stability and compressive loading characteristics are desirable. Various embodiments may be shafts of catheters used to treat peripheral vasculatures or coronary vasculatures. Embodiment of the catheter shaft provide enhanced longitudinal dimensional stability and compressive loading characteristics, while maintaining flexibility under loading conditions. In one embodiment, a catheter shaft (100) includes an outer catheter shaft (102) with a lumen therethrough, and an annular compression spring (106) inside the outer catheter shaft (102). Also included is an actuation member (110) inside the annular compression spring (106), wherein the actuation member (110) actuates a working element at a distal end of the catheter.
    • 具有用于小开口的轴的导管器械,其中需要增强的纵向尺寸稳定性和压缩载荷特性。 各种实施例可以是用于治疗外周脉管系统或冠状动脉脉管系统的导管的轴。 导管轴的实施例提供增强的纵向尺寸稳定性和压缩载荷特性,同时在加载条件下保持柔性。 在一个实施例中,导管轴(100)包括具有穿过其中的内腔的外导管轴(102)和在外导管轴(102)内部的环形压缩弹簧(106)。 还包括在环形压缩弹簧(106)内部的致动构件(110),其中致动构件(110)致动导管远端处的工作元件。