Disintegrating stent and method of making same
    1.
    发明申请
    Disintegrating stent and method of making same 审中-公开
    崩解支架及其制作方法

    公开(公告)号:US20130184809A1

    公开(公告)日:2013-07-18

    申请号:US13784154

    申请日:2013-03-04

    Abstract: A temporary stent endoprosthesis that does not require an interventional procedure for removal. The disintegrating stent is preferably made from a bioabsorbable polymer, such as by braiding polymer monofilaments into a tubular mesh shape, and the polymer has fracture initiation sites within it that promotes the disintegration of the stent into small pieces that are harmlessly transported out of the body by the vessel contents. Fracture initiation sites may be created by controlling the heterogenous structure of amorphous and crystalline regions, by introducing internal or surface fracture initiation sites, or use of multiple strands with small section size.

    Abstract translation: 临时支架内假体,不需要介入手术去除。 崩解支架优选由生物可吸收聚合物制成,例如通过将聚合物单丝编织成管状网状,并且聚合物在其内具有促进支架分解成小块的破裂起始位点,其被无害地运输出体外 按船只内容。 可以通过引入内部或表面断裂起始位点或使用具有小截面尺寸的多股线来控制非晶和结晶区域的异质结构来产生断裂起始位点。

    MEDICAL STENT WITH A VALVE AND RELATED METHODS OF MANUFACTURING
    2.
    发明申请
    MEDICAL STENT WITH A VALVE AND RELATED METHODS OF MANUFACTURING 审中-公开
    具有阀门的医疗器械及相关制造方法

    公开(公告)号:US20170056150A1

    公开(公告)日:2017-03-02

    申请号:US15257510

    申请日:2016-09-06

    CPC classification number: A61F2/04 A61F2/2412 A61F2/2418 A61F2/86 A61F2002/044

    Abstract: Medical stents having valves and their methods of manufacture are disclosed. The valve may be basket-shaped and formed integral to a medical stent to prevent undesirable backflow across the valve. The valve can be formed by converting the braided wires of the stent, by providing elastomeric material onto a mold or fixture to form an elastomeric valve, or by attaching a gasket valve. The valve is normally closed but configured to allow easy opening in response to a predetermined condition.

    Abstract translation: 公开了具有阀门及其制造方法的医疗支架。 阀可以是篮状的并且与医用支架一体形成,以防止不期望的跨越阀的回流。 阀可以通过将支架的编织线转化,通过将弹性体材料提供到模具或夹具上以形成弹性阀,或者通过附接垫圈阀来形成。 阀常闭,但构造成能够响应于预定条件容易地打开。

    Bioerodible Magnesium Alloy Microstructures for Endoprostheses
    3.
    发明申请
    Bioerodible Magnesium Alloy Microstructures for Endoprostheses 审中-公开
    用于内假体的生物蚀刻镁合金微结构

    公开(公告)号:US20160263288A1

    公开(公告)日:2016-09-15

    申请号:US15068132

    申请日:2016-03-11

    Abstract: A bioerodible endoprosthesis includes a bioerodible body including an alloy comprising at least 85 weight percent magnesium and at least one high-melting-temperature element having a melting temperature of greater than 700° C. The alloy has a microstructure including equiaxed magnesium-rich phase grains and optionally high-melting-temperature intermetallic phases. The equiaxed magnesium-rich phase grains have an average grain diameter of less than or equal to 10 microns. High-melting-temperature intermetallic phases, if present, can have an average longest dimension of 3 microns or less.

    Abstract translation: 生物腐蚀性内用假体包括含有包含至少85重量%的镁和至少一个熔点高于700℃的至少一个高熔点元素的合金的生物腐蚀体。该合金具有包括等轴富镁相晶粒 和任选的高熔点金属间相。 等轴富镁相晶粒的平均粒径小于或等于10微米。 高熔点金属间相(如果存在)可以具有3微米或更小的平均最长尺寸。

    STENT DELIVERY SYSTEM AND METHOD OF MANUFACTURING SAME
    4.
    发明申请
    STENT DELIVERY SYSTEM AND METHOD OF MANUFACTURING SAME 审中-公开
    STENT交付系统及其制造方法

    公开(公告)号:US20160113797A1

    公开(公告)日:2016-04-28

    申请号:US14982851

    申请日:2015-12-29

    Abstract: Stent delivery system and method of manufacturing same. The stent delivery system comprises an inner catheter with an enlarged tip 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. The system also includes an outer catheter surrounding the stent and stent engaging sleeve, the outer catheter being adapted for axial movement relative to the inner catheter.

    Abstract translation: 支架输送系统及其制造方法。 支架输送系统包括设置在其远端处的具有放大尖端的内导管。 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。 该系统还包括围绕支架和支架接合套筒​​的外导管,外导管适于相对于内导管的轴向移动。

    Apparatus For Reducing Deployment Forces In A Self-Expanding Stent Delivery System
    6.
    发明申请
    Apparatus For Reducing Deployment Forces In A Self-Expanding Stent Delivery System 审中-公开
    用于减少自扩展支架输送系统中部署力的装置

    公开(公告)号:US20150297382A1

    公开(公告)日:2015-10-22

    申请号:US14691107

    申请日:2015-04-20

    CPC classification number: A61F2/966

    Abstract: A stent delivery catheter comprising at least one catheter shaft, the catheter shaft having an inner surface and an outer surface and a distal end and a proximal end, the catheter shaft defining a guidewire lumen, the guidewire lumen comprising a diameter defined by the inner surface of the catheter shaft, a stent disposed within the distal end of the catheter shaft and in contact with the inner surface of the catheter shaft, and a stylet disposed within the distal end of the catheter shaft, the stylet comprising a wave geometry.

    Abstract translation: 一种支架输送导管,其包括至少一个导管轴,所述导管轴具有内表面和外表面以及远端和近端,所述导管轴限定导丝管腔,所述导丝管腔包括由内表面限定的直径 所述导管轴设置在所述导管轴的远端内且与所述导管轴的内表面接触的支架以及设置在所述导管轴的远端内的探针,所述探针包括波形几何形状。

    Neuroaneurysm occlusion and delivery device and method of using same
    10.
    发明申请
    Neuroaneurysm occlusion and delivery device and method of using same 审中-公开
    神经内膜闭塞和输送装置及其使用方法

    公开(公告)号:US20140330304A1

    公开(公告)日:2014-11-06

    申请号:US14321405

    申请日:2014-07-01

    Abstract: A delivery device for delivering an implantable endoprosthesis with an occlusion region for occluding fluid flow to a desired location in a body lumen. The delivery device includes an outer sleeve and an inner tube terminating at a distal tip. The distal tip is made of one of a dissolvable, bioabsorbable, or deformable material. Upon deployment of the endoprosthesis at the desired location, the shape of the distal tip is altered to a different shape and withdrawn through the constricted region of the endoprosthesis.

    Abstract translation: 用于递送具有闭塞区域的可植入内用假体的输送装置,用于阻塞流体流到体腔内的期望位置。 输送装置包括外套筒和终管于远端的内管。 远侧末端由可溶解的,生物可吸收的或可变形的材料之一制成。 在将假体放置在所需位置时,将远端尖端的形状改变为不同的形状并且通过内假体的收缩区域撤回。

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