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    • 1. 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
    • US20100036402A1
    • 2010-02-11
    • US12578222
    • 2009-10-13
    • 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。
    • 5. 发明授权
    • Catheter with removable balloon protector
    • US6132450A
    • 2000-10-17
    • US211376
    • 1998-12-14
    • Scott M. HansonRichard J. TraxlerLouis G. EllisLinda Lorentzen CorneliusThomas J. HolmanGregory K. Olson
    • Scott M. HansonRichard J. TraxlerLouis G. EllisLinda Lorentzen CorneliusThomas J. HolmanGregory K. Olson
    • A61F2/06A61F2/84A61M29/02A61M29/00
    • A61M25/104A61F2/0095A61F2/958A61M2025/1081
    • A balloon catheter is provided having an expandable distal portion and balloon protector means comprising a first removable sleeve having a variable inner diameter to ease sliding the first sleeve over the balloon, and an optional second removable (outer) sleeve positioned over the inner sleeve, the second (outer) sleeve having a constrictive relationship with the first (inner) sleeve, said first and second sleeves being removed prior to use of the catheter. A stent delivery system is provided to facilitate introduction and placement of a stent, and includes a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state, said distal portion further comprising a balloon and at least one dam over which the balloon extends, and a stent positioned around the distal portion of the catheter around the balloon or gripper linear control device, said stent having a contracted condition, being sized in the contracted condition to closely surround the balloon in the contracted state, and being expandable to an expanded condition; a first removable (inner) sleeve in the region of the distal portion of the catheter positioned around the stent (and between the dams where the device comprises two dams), said first sleeve comprising a first end, a second end and a variable inner diameter to ease sliding the sleeve over the balloon and stent; an optional second removable (outer) sleeve positioned over the stent, first sleeve and at least one dam, said second (outer) sleeve having a constrictive relationship with the first (inner) sleeve, whereby when compressed by the outer sleeve, the inner sleeve will have an inner diameter approximately equal to or less than the outer profile of the collapsed balloon over the at least one dam, said first and second sleeves being removed prior to use of the stent delivery system and release of the stent by expansion of the balloon.