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    MATERIAL REMOVAL DEVICE AND METHOD OF USE
    2.
    发明公开
    MATERIAL REMOVAL DEVICE AND METHOD OF USE 有权
    VORRICHTUNG ZUR MATERIALFERNUNG

    公开(公告)号：EP2632352A1

    公开(公告)日：2013-09-04

    申请号：EP11782303.9

    申请日：2011-10-27

    申请人： Covidien LP

    发明人： ZERONI, Jenny ,  VANPELT, Robert Wayne, Jr. ,  SILLS, Cory David ,  PETERSEN, Scott Robert ,  VAN DER LUGT, Nick Jan

    IPC分类号： A61B17/3207 ,  A61B17/22

    CPC分类号： A61B17/320758 ,  A61B2017/00685 ,  A61B2017/22038 ,  A61B2017/22039 ,  A61B2017/22079 ,  A61B2017/22094 ,  A61B2017/320064 ,  A61B2017/320766 ,  A61B2017/320775

    摘要： An atherectomy catheter having an inner drive shaft which rotates a distal rotary tissue borer with a helical cutting surface which enables the catheter to cut through and cross a CTO. Additionally, the atherectomy catheter has a distal cutting element rotated by an outer drive shaft configured to cut material from the wall of a vessel at a treatment site as the catheter is pushed distally through the treatment site. The atherectomy catheter includes a collection chamber positioned proximally of the cutting element and rotary tissue borer. The atherectomy catheter may include means to direct material cut from the treatment site into the collection chamber, means to break down larger portions of material that may block or clog the collection chamber and means of transporting the material collected from the treatment site to a proximal opening in the atherectomy catheter.

    摘要翻译： 一种粥样斑块切除术导管，具有内部驱动轴，该内部驱动轴使具有螺旋切割表面的远端旋转组织钻孔器旋转，该螺旋切割表面使得导管能够穿过并穿过CTO。 另外，粥样斑块切除术导管具有通过外部驱动轴旋转的远端切割元件，外部驱动轴构造成在导管向远侧推动通过治疗部位被推向治疗部位时从容器的壁切割材料。 粥样斑块切除术导管包括位于切割元件和旋转组织钻孔器的近侧的收集室。 粥样斑块切除术导管可以包括将从治疗部位切割的材料引导到收集室中的装置，用于分解可能阻塞或堵塞收集室的较大部分材料的装置，以及将从治疗部位收集的材料输送到近端开口 在粥样斑块切除术导管。