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    MEDICAL DEVICE FOR REMOVING AN IMPLANTED OBJECT
    2.
    发明申请
    MEDICAL DEVICE FOR REMOVING AN IMPLANTED OBJECT 有权
    用于移除植入物体的医疗装置

    公开(公告)号：US20150258334A1

    公开(公告)日：2015-09-17

    申请号：US14627950

    申请日：2015-02-20

    Applicant: The Spectranetics Corporation

    Inventor： Robert CARVER ,  Weston H. Lee ,  Brian E. Kagarise ,  Bruce A. Hoo ,  Peter Wilbur Gleason ,  Phillip Charles Halbert

    IPC: A61N1/05 ,  A61B17/3205

    CPC classification number: A61B17/3468 ,  A61B17/32 ,  A61B17/32002 ,  A61B17/3205 ,  A61B17/32053 ,  A61B17/320758 ,  A61B17/50 ,  A61B2017/320032 ,  A61N1/0573 ,  A61N2001/0578

    Abstract: Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient's vasculature system. Specifically, the surgical device includes a handle, an elongate sheath and a circular cutting blade that extends from the distal end of the sheath upon actuating the handle. The circular cutting blade is configured to engage the tissue surrounding an implanted lead and cut such tissue in a coring fashion as the surgical device translates along the length of the lead, thereby allowing the lead, as well as any tissue remaining attached to the lead, to enter the device's elongate shaft. The surgical device has a barrel cam cylinder in the handle assembly that imparts rotation of the blade and a separate cam mechanism in the tip of outer sheath assembly that imparts and controls the extension and retraction of the blade. The barrel cam cylinder and cam mechanism cooperate to cause the blade to rotate in a first direction and extend from and retract in the outer sheath due to a first actuation of the handle and to rotate in a second direction and extend and retract in the outer sheath due to a second actuation of the handle.

    Abstract translation: 用于将植入物体（例如起搏器引线）从患者血管系统中围绕该物体的组织分离的方法和装置。 具体地说，手术装置包括手柄，细长护套和圆形切割刀片，它们在致动手柄时从护套的远端延伸。 圆形切割刀片被配置为接合植入的引线周围的组织并且以取芯方式切割这样的组织，因为外科手术装置沿着引线的长度平移，从而允许引线以及保留附着到引线的任何组织， 进入设备的细长轴。 手术装置在手柄组件中具有桶形凸轮圆柱体，其将叶片的旋转和在外护套组件的尖端中的单独的凸轮机构赋予并控制叶片的伸缩。 筒状凸轮圆筒和凸轮机构协作以使刀片在第一方向上旋转并且由于手柄的第一致动而在外护套中延伸并从外套中缩回并且在第二方向上旋转并且在外护套中延伸和缩回 由于手柄的第二次致动。

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