ABRASIVE NOSE CONE WITH EXPANDABLE CUTTING AND SANDING REGION FOR ROTATIONAL ATHERECTOMY DEVICE
    1.
    发明申请
    ABRASIVE NOSE CONE WITH EXPANDABLE CUTTING AND SANDING REGION FOR ROTATIONAL ATHERECTOMY DEVICE 审中-公开
    用于旋转式手术装置的可扩展切割和切割区域的磨砂螺纹

    公开(公告)号:US20090306690A1

    公开(公告)日:2009-12-10

    申请号:US12466152

    申请日:2009-05-14

    IPC分类号: A61B17/22

    摘要: An rotational atherectomy apparatus for abrading tissue, comprising: a flexible, elongated, rotatable drive shaft having a proximal end and a distal end opposite the proximal end; a nose cone operatively attached proximate the distal end of the drive shaft comprising a distal tapered section and a plurality of elongate, flexible members adjacent to the distal tapered section of the drive shaft, each member in the plurality being fixed at both a proximal end and a distal end opposite the proximal end; a proximal mount rotatable with the drive shaft and fixedly connected to the proximal ends of all the flexible members in the plurality; and a distal mount axially separated from the proximal mount and fixedly connected to the distal ends of all the flexible members in the plurality. When the axial separation of the proximal and distal mounts is reduced by pulling the distal tapered section proximally, each member in the plurality bows outward from the drive shaft and expands radially in an at least partially elliptical profile.

    摘要翻译: 1.一种用于研磨组织的旋切式切除装置,包括:柔性的,细长的,可旋转的驱动轴,其具有近端和与近端相对的远端; 一个靠近驱动轴的远端可操作地附接的鼻锥体,包括远端锥形部分和与驱动轴的远端锥形部分相邻的多个细长的柔性部件,多个部件中的每个部件被固定在近端和 与近端相对的远端; 近端安装件,其可与驱动轴一起旋转并且固定地连接到多个中的所有柔性构件的近端; 以及远端安装件,其与近侧安装件轴向分离并且固定地连接到多个中的所有柔性构件的远端。 当通过将近端锥形部分向近侧拉动来减小近端和远端安装件的轴向分离时,多个弓形件中的每个构件从驱动轴向外弓向并以至少部分椭圆形轮廓径向扩张。