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    • 7. 发明申请
    • INTRACORPOREAL GRASPING DEVICE
    • WO2008063156A2
    • 2008-05-29
    • PCT/US2006/041695
    • 2006-10-26
    • CHESTNUT MEDICAL TECHNOLOGIES, INC.GARCIA, AdrianYE, Ting, TinaTRAN, Quang, Q.PIPLANI, AlecBEREZ, Aaron, L.BOJANOWSKI, Bart
    • GARCIA, AdrianYE, Ting, TinaTRAN, Quang, Q.PIPLANI, AlecBEREZ, Aaron, L.BOJANOWSKI, Bart
    • A61B17/22
    • A61B17/221A61B2017/2215
    • An intracorporeal grasping device includes a tubular member for entering a lumen of a human body and the tube member having a distal end portion. An elongated core member is disposed with the interior cavity of the tubular member for rotational or slidably movement within the tubular member and the elongated core member having a proximal end portion and a distal end portion. The elongated core member comprises a uniform diameter tube having some flexibility at the proximal end portion and greater flexibility while along a longitudinal axis in a direction towards the distal end portion; and a grasping configuration is provided for capturing an object (e.g., clot or debris) therein and the assembly may have a proximal end secured to the distal end of the elongated core member. The configuration has an expanded and contracted configuration, and distal sections configured to grasp an object. The grasping configuration may be formed by at least one movable jaw attached to the distal end portion of the elongated core member and a length portion of the distal end portion of the tube member. The grasping configuration may include unitarily formed plurality of movable jaws attached to the distal end portion of the elongated core member. Further, the grasping configuration may be formed by a plurality of loop members attached to the distal end portion of the elongated core member. Further, the grasping configuration may be formed by at least one spiral member having a distal tip for penetrating an object to be removed from a human body lumen. The device has the spiral member provided at the distal end portion of the elongated core member. The grasping configuration can be formed by at least one web member for retaining an object to be removed from a human body lumen, the web member being provided at the distal end portion of the elongated core member.
    • 体内抓握装置包括用于进入人体内腔的管状构件和具有远端部分的管构件。 细长的芯构件设置有管状构件的内部空腔,用于在管状构件内旋转或可滑动地移动,并且细长的芯构件具有近端部分和远端部分。 细长的芯构件包括均匀直径的管,其在近端部分具有一些柔性,并且在朝向远端部分的方向上沿着纵向轴线具有更大的柔性; 并且提供抓握构造用于捕获其中的物体(例如,凝块或碎屑),并且组件可以具有固定到细长芯构件的远端的近端。 该配置具有扩展和收缩配置,并且远端部分配置为抓住对象。 夹持构造可以由附接到细长芯构件的远端部分的至少一个可动夹爪和管构件的远端部分的长度部分形成。 抓持构造可以包括连接到细长芯构件的远端部分的一体形成的多个可动爪。 此外,抓持构造可以由附接到细长芯构件的远端部的多个环构件形成。 此外,抓持构造可以由至少一个螺旋构件形成,该至少一个螺旋构件具有用于穿透要从人体腔去除的物体的远端。 该装置具有设置在细长芯部件的远端部分的螺旋部件。 抓持构造可以由至少一个腹板构件形成,用于将要从人体腔移除的物体保持在该细长的芯构件的远端部。