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    Devices, systems, and methods for cutting and removing occlusive material from a body lumen
    9.
    发明授权
    Devices, systems, and methods for cutting and removing occlusive material from a body lumen 有权
    用于从体腔切割和去除闭塞性材料的装置，系统和方法

    公开(公告)号：US09492193B2

    公开(公告)日：2016-11-15

    申请号：US12925466

    申请日：2010-10-22

    申请人： John T. To ,  Christopher James Danek

    发明人： John T. To ,  Christopher James Danek

    IPC分类号： A61B17/22 ,  A61B17/3207 ,  A61B17/00

    CPC分类号： A61B17/320758 ,  A61B17/22 ,  A61B17/320783 ,  A61B2017/003 ,  A61B2017/00318 ,  A61B2017/00331 ,  A61B2017/00685 ,  A61B2017/22038 ,  A61B2017/22039 ,  A61B2017/22041 ,  A61B2017/22044 ,  A61B2017/22068 ,  A61B2017/22094 ,  A61B2017/320716 ,  A61B2017/320741 ,  A61B2017/320775 ,  A61B2090/3735 ,  A61B2090/3784 ,  A61M25/0152 ,  A61M25/0155

    摘要： A vascular device is provided having a catheter body and a rotatable cutter assembly located at the distal end of the catheter body. The cutter assembly has at least one helical cutting surface within a housing that is coupled by a torque shaft to a drive mechanism. A conveyor mechanism helically wound about the torque shaft conveys occlusive material conveyed into the housing by the helical cutting blade further proximally along the catheter body for discharge without supplement of a vacuum pump. The catheter body is manipulated to insert the distal end of the catheter body within a body lumen and advance the distal end of the catheter body toward the occlusive material. The drive mechanism is operated to rotate the helical cutting surface to cut and convey the occlusive material from the body lumen proximally into the housing and to convey the occlusive material conveyed into the housing by the helical cutting surface further proximally along the catheter body by the conveyor mechanism for discharge without supplement of a vacuum pump. The distal end of the catheter body is deflected and rotated to sweep the cutter assembly in an arc about the center axis of the catheter body to cut occlusive material in a region larger than the outside diameter of the cutter assembly.

    摘要翻译： 提供了一种血管装置，其具有位于导管主体的远端处的导管主体和可旋转切割器组件。 切割器组件具有在壳体内的至少一个螺旋切割表面，该螺旋切割表面由扭矩轴联接到驱动机构。 螺旋缠绕在扭矩轴上的传送机构通过螺旋切割刀片沿着导管主体向近侧传送输送到壳体中的封闭材料，用于在不补充真空泵的情况下进行排放。 操纵导管主体以将导管主体的远端插入体腔内并将导管主体的远端推向封闭材料。 驱动机构被操作以旋转螺旋切割表面，以将封闭材料从体腔近端切割并输送到壳体中，并且通过螺旋切割表面沿着导管主体通过输送器传送进入壳体的闭塞材料 没有补充真空泵的排放机构。 导管主体的远端被偏转并旋转以围绕导管主体的中心轴线围绕弧线扫掠切割器组件，以在大于切割器组件的外径的区域中切割闭塞性材料。

    Devices and methods for arched roof cutters
    10.
    发明授权
    Devices and methods for arched roof cutters 有权

    公开(公告)号：US08801739B2

    公开(公告)日：2014-08-12

    申请号：US12761311

    申请日：2010-04-15

    申请人： David Batten ,  John T. To ,  Hiep Nguyen

    发明人： David Batten ,  John T. To ,  Hiep Nguyen

    IPC分类号： A61B17/32

    CPC分类号： A61B17/32002 ,  A61B17/1615 ,  A61B17/1617 ,  A61B17/1671 ,  A61B2017/320064

    摘要： Disclosed herein are tissue-removal devices and methods for treating spinal diseases using such devices. The tissue-removal devices may comprise a cable and/or extendable elements with a retracted and a deployed configuration. The cable and/or extendable elements may be distally supported and restrained by a support element such that the support element may be pushed transversely away when the extendable element is distally extended into its deployed configuration. An annular cutting element may be provided about the distal end of the extendable element or the support element. Various configurations of the extendable and support elements are described herein, as well as methods of using tissue-removal devices with extendable and support elements coupled by an annular cutting element for treating spinal diseases.