Stent delivery system and method of manufacturing same
    1.
    发明申请
    Stent delivery system and method of manufacturing same 审中-公开
    支架输送系统及其制造方法

    公开(公告)号:US20070043430A1

    公开(公告)日:2007-02-22

    申请号:US11589493

    申请日:2006-10-30

    申请人: Jonathan Stinson

    发明人: Jonathan Stinson

    IPC分类号: A61F2/06

    摘要: Stent delivery system and method of manufacturing same. In one embodiment, the stent delivery system comprises an inner catheter. A handle is disposed at the proximal end of the inner catheter, and an enlarged tip is disposed at the distal end thereof. A stent engaging sleeve coaxially surrounds and is secured to a portion of the inner catheter proximally contiguous to the tip. The stent engaging sleeve is used to frictionally engage a stent mounted thereover in such a way as to prevent the stent, during deployment, from sliding proximally relative to the inner catheter. The system additionally comprises a self-expandable stent of the type comprising a knitted mesh of nitinol wire flexible in both the radial and longitudinal axes. The stent is mounted over the stent engaging sleeve in a longitudinally stretched state and is maintained, until deployment, in the stretched state by a stent restraining sleeve. The stent restraining sleeve, which coaxially surrounds the stent and is appropriately sized to maintain the stent in its stretched state, is a braided tube formed directly over the stent. The system also includes an outer catheter that surrounds much of the distal end of the inner catheter up to its tip, the outer catheter being adapted for axial movement relative to the inner catheter. The distal end of the outer catheter, which is mechanically coupled to the distal end of the stent for axial movement, is provided with an increased inner diameter to accommodate those components positioned between the inner and outer catheters. To facilitate the advancement of the outer catheter over the stent restraining sleeve during the assembly of the system, the outer catheter is fabricated with a longitudinal split extending proximally from its distal end. After the outer catheter has been positioned over the stent restraining sleeve, the split is sealed.

    摘要翻译: 支架输送系统及其制造方法。 在一个实施例中,支架输送系统包括内导管。 手柄设置在内导管的近端处,并且在其远端设置有扩大的尖端。 支架接合套筒​​同轴地围绕并固定到内导管的与尖端邻近的部分。 支架接合套筒​​用于摩擦地接合其上安装的支架,以防止支架在展开期间相对于内导管向近侧滑动。 该系统还包括一种自膨胀支架,其包括在径向和纵向轴线上均柔性的镍钛诺导线的针织网。 支架以纵向拉伸的状态安装在支架接合套上,并且通过支架限制套筒保持直到展开为拉伸状态。 支架限制套筒同轴地围绕支架并被适当地定尺寸以将支架保持在其拉伸状态,是直接在支架上形成的编织管。 该系统还包括外导管,其围绕内导管的远端的大部分直到其尖端,外导管适于相对于内导管的轴向移动。 机械地联接到用于轴向运动的支架的远端的外导管的远端设置有增加的内径,以适应定位在内导管和外导管之间的部件。 为了在组装系统期间促进外导管在支架限制套上的推进,外导管制造有从其远端向近侧延伸的纵向剖面。 在将外导管定位在支架限制套上方之后,分开被密封。

    Medical devices and methods of making the same
    4.
    发明申请
    Medical devices and methods of making the same 审中-公开
    医疗器械和制造方法

    公开(公告)号:US20060122694A1

    公开(公告)日:2006-06-08

    申请号:US11004009

    申请日:2004-12-03

    IPC分类号: A61F2/06

    摘要: Medical devices, such as stents, and methods of making the devices, are described. In some embodiments, the invention features a medical device that includes a member having a first portion and a second portion that define an electrically conductive loop. The first portion is adapted to break or erode after expansion of the medical device, and the second portion is not adapted to break or erode after expansion of the medical device. The breaking or erosion of the first portion breaks the electrically conductive loop.

    摘要翻译: 描述诸如支架的医疗装置和制造装置的方法。 在一些实施例中,本发明的特征在于包括具有限定导电环路的第一部分和第二部分的构件的医疗装置。 第一部分适于在医疗装置膨胀之后破裂或侵蚀,并且第二部分不适于在医疗装置膨胀之后破裂或侵蚀。 第一部分的断裂或侵蚀破坏了导电环路。