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    • 6. 发明授权
    • Endoluminal coil delivery system having a mechanical release mechanism
    • 具有机械释放机构的腔内线圈输送系统
    • US5746769A
    • 1998-05-05
    • US735348
    • 1996-10-22
    • Dai T. TonJulian N. Nikolchev
    • Dai T. TonJulian N. Nikolchev
    • A61B17/00A61B17/12A61F2/82A61B17/28
    • A61B17/12145A61B17/12022A61B2017/12054
    • The invention provides endoluminal coil delivery systems and methods for positioning a coil within a body lumen. In particular, the device uses a mechanical latch in the form of jaws to positively engage the coil during positioning. The coil may be restrained in a straight configuration from within the coil, using an internal coilwire, or from outside using a catheter. Thus, the mechanism for releasing the coil to form its relaxed convoluted shape is separate from the mechanism for disengaging the coil from the delivery system. The use of an internal core wire allows a coil having a helical outer surface to be torqued against a fallopian tube or other body lumen wall, thereby firmly anchoring the coil in the target position prior to disengaging the delivery system.
    • 本发明提供了用于将线圈定位在体腔内的腔内线圈输送系统和方法。 特别地,该装置使用夹爪形式的机械闩锁以在定位期间使线圈牢固地接合。 线圈可以使用内部线圈线,或使用导管从外部被限制在线圈内的直线构造中。 因此,用于释放线圈以形成其松弛卷曲形状的机构与用于使线圈与输送系统脱离的机构分离。 使用内部芯线允许具有螺旋形外表面的线圈被扭转抵靠输卵管或其他体腔壁,从而在释放输送系统之前将线圈牢固地固定在目标位置。