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    • 7. 发明申请
    • ROTATIONAL ATHERECTOMY DEVICE WITH PRE-CURVED DRIVE SHAFT
    • 具有预弯曲驱动轴的旋转自适应装置
    • US20090149877A1
    • 2009-06-11
    • US11951870
    • 2007-12-06
    • Scott M. HansonWalter DobrovolnyJeffrey R. Stone
    • Scott M. HansonWalter DobrovolnyJeffrey R. Stone
    • A61B17/22
    • A61B17/320758A61B2017/320766
    • The invention provides a rotational atherectomy system, device and method comprising a flexible, elongated, rotatable drive shaft with an abrasive section within a pre-curved section of the drive shaft. The device may further comprise a concentric or eccentric enlarged diameter section that is at least partially covered with abrasive material to comprise the abrasive section. The abrasive section may further comprise an abrasive crown or burr mounted to the drive shaft. The pre-curved drive shaft allows smaller diameter and/or massive abrasive regions to be used while sweeping larger diameters during high-speed rotation. The pre-curved region is substantially straightened for insertion into vasculature and placement adjacent stenosis by insertion of the guide wire. Removal of guide wire proximally from the pre-curved region allows the drive shaft to return to its pre-curved form for ablation. Reinsertion of the guide wire beyond the pre-curved region straightens the drive shaft for ease of removal.
    • 本发明提供一种旋转粥样斑块切除系统,装置和方法,其包括柔性的,细长的,可旋转的驱动轴,在驱动轴的预弯曲部分内具有研磨部分。 该装置可以进一步包括同心或偏心的扩大直径部分,其至少部分地被研磨材料覆盖以包括研磨部分。 研磨部分还可以包括安装到驱动轴上的研磨表冠或毛刺。 预弯曲的驱动轴允许在高速旋转期间使用更小的直径和/或大的磨料区域,同时扫掠更大的直径。 预弯曲区域基本上被拉直,用于插入脉管系统并通过插入导丝而邻近狭窄放置。 从预弯曲区域向近侧移除导丝线允许驱动轴返回其预弯曲形式以进行消融。 引导线超过预弯曲区域的再插入使驱动轴伸直以便于移除。
    • 10. 发明授权
    • Filter delivery and retrieval device
    • 过滤器送出和检索装置
    • US07229464B2
    • 2007-06-12
    • US10621599
    • 2003-07-17
    • Scott M. HansonAndrew J. DusbabekGary L. Hendrickson
    • Scott M. HansonAndrew J. DusbabekGary L. Hendrickson
    • A61M29/00
    • A61F2/013A61B2017/00243A61B2017/22001A61F2002/011A61F2002/018A61F2230/0006A61F2230/0067A61F2230/0093
    • Methods and devices for providing temporary placement of a filter in a blood vessel are disclosed. A filter delivery system in accordance with one exemplary embodiment of the present invention includes a catheter having an elongate shaft and a tubular member disposed within a shaft lumen defined by the elongate shaft. The elongate shaft also includes a proximal end, a distal end, and a wall defining the shaft lumen. The tubular member has a first end fixed to the wall of the elongate shaft, and a second end disposed within the shaft lumen. The tubular member defines a guidewire lumen that is in fluid communication with a distal guidewire port defined by the second end of the tubular member. The catheter also includes a proximal guidewire port extending through the wall of the elongate shaft. A filter may be disposed within a distal portion of the shaft lumen. A distal end of a guidewire is fixed to the filter. The guidewire preferably extends through the distal guidewire port, the guidewire lumen, and the proximal guidewire port.
    • 公开了用于在血管中临时放置过滤器的方法和装置。 根据本发明的一个示例性实施例的过滤器输送系统包括具有细长轴和设置在由细长轴限定的轴腔内的管状构件的导管。 细长轴还包括近端,远端和限定轴腔的壁。 管状构件具有固定到细长轴的壁的第一端和设置在轴内腔内的第二端。 管状构件限定了与由管状构件的第二端限定的远侧导丝端口流体连通的导丝管腔。 导管还包括延伸穿过细长轴的壁的近端导丝端口。 过滤器可以设置在轴腔的远端部分内。 导丝的远端固定在过滤器上。 引导线优选地延伸穿过远端导丝端口,导丝内腔和近端导丝端口。