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    Atherectomy devices and methods
    1.
    发明授权
    Atherectomy devices and methods 有权
    动脉粥样硬化切除装置和方法

    公开(公告)号：US08920448B2

    公开(公告)日：2014-12-30

    申请号：US11551191

    申请日：2006-10-19

    申请人： John To ,  Christopher James Danek

    发明人： John To ,  Christopher James Danek

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

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

    摘要： The devices and methods generally relate to treatment of occluded body lumens. In particular, the present devices and method relate to removal of the occluding material from the blood vessels as well as other body lumens. In some variations, the devices include a catheter body, a cutter assembly, a drive mechanism, a torque shaft, a conveyor mechanism, a deflecting mechanism and a torque control device. The deflecting mechanism may be slidable within the catheter body to point the cutter assembly toward a side of a body lumen. The torque control device may sweep the cutter assembly in an arc when the cutter assembly is deflected.

    摘要翻译： 装置和方法通常涉及封闭体腔的治疗。 特别地，本发明的装置和方法涉及从血管以及其它体腔去除闭塞材料。 在一些变型中，装置包括导管主体，切割器组件，驱动机构，扭矩轴，输送机构，偏转机构和扭矩控制装置。 偏转机构可以在导管主体内滑动以将切割器组件指向体腔的一侧。 当切割器组件偏转时，扭矩控制装置可以以弧形扫掠刀具组件。

    Devices, systems, and methods for cutting and removing occlusive material from a body lumen
    4.
    发明申请
    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：US20110040315A1

    公开(公告)日：2011-02-17

    申请号：US12925466

    申请日：2010-10-22

    申请人： John To ,  Christopher James Danek

    发明人： John To ,  Christopher James Danek

    IPC分类号： A61B17/22

    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。