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102 条记录 (耗时 0.034 秒)

    Puncturable catheter
    43.
    发明授权
    Puncturable catheter 有权
    可导管

    公开(公告)号：US09119937B2

    公开(公告)日：2015-09-01

    申请号：US13186198

    申请日：2011-07-19

    申请人： Joseph R. Armstrong ,  Edward H. Cully ,  Keith M. Flury ,  Michael J. Vonesh

    发明人： Joseph R. Armstrong ,  Edward H. Cully ,  Keith M. Flury ,  Michael J. Vonesh

    IPC分类号： A61M25/00 ,  A61M25/10 ,  A61F2/958 ,  A61M25/01

    CPC分类号： A61M25/0043 ,  A61F2/958 ,  A61M25/005 ,  A61M25/0052 ,  A61M25/10 ,  A61M2025/0183 ,  A61M2025/0188 ,  A61M2025/1056 ,  A61M2025/1081

    摘要： A catheter provided with a guidewire catheter lumen having a thin covering that is easily punctured by a guidewire at virtually any desired point along the catheter length. The thin covering may be integral with the catheter shaft, or may be a separate component that covers only the portion of the catheter shaft immediately adjacent the outer portion of the guidewire lumen, or may be a thin tubular construct that surrounds the entire catheter shaft. The covering is preferably relatively translucent, allowing for good visualization of the location of the end of the guidewire to enable puncturing of the covering at the desired location along the length of the catheter shaft. The covering is also preferably tear resistant at puncture sites. The catheter shaft is preferably made of a material having a color that provides good visibility against an operating field, and more preferably is phosphorescent either entirely or in part. Materials suitable for the catheter shaft are polymeric materials well known in the art; the catheter shaft may optionally be provided with metallic stiffening components such as wires or hypotubes along all or part of the catheter length.

    摘要翻译： 导管，其具有导线导管管腔，该导管管腔具有薄的覆盖层，其在导管长度的几乎任何所需点处被导丝容易地刺穿。 薄的覆盖物可以与导管轴成一体，或者可以是仅覆盖导管轴的紧邻导丝管腔的外部的部分的单独的部件，或者可以是围绕整个导管轴的薄的管状结构。 覆盖物优选地是相对半透明的，允许良好地可视化导丝端部的位置，以使得能够沿着导管轴的长度在期望的位置刺穿覆盖物。 覆盖物也优选在穿刺部位具有抗撕裂性。 导管轴优选由具有对操作场提供良好可见性的颜色的材料制成，更优选地，全部或部分地是磷光。 适用于导管轴的材料是本领域公知的聚合材料; 导管轴可以可选地沿着导管长度的全部或部分设置有金属加强部件，例如电线或海波管。

    Embolic filter frame having looped support strut elements
    50.
    发明授权
    Embolic filter frame having looped support strut elements 有权
    栓塞过滤器框架具有环形支撑支柱元件

    公开(公告)号：US08231650B2

    公开(公告)日：2012-07-31

    申请号：US11020809

    申请日：2004-12-22

    申请人： Edward H. Cully ,  Michael J. Vonesh

    发明人： Edward H. Cully ,  Michael J. Vonesh

    IPC分类号： A61M29/00

    CPC分类号： A61F2/013 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/0067 ,  B23P11/00 ,  Y10T29/49826

    摘要： An improved embolic filter frame having looped support struts. The frame configuration provides enhanced longitudinal compliance, improved sealing against a vessel wall, low profile delivery, and a short deployed length. The looped support struts have a high degree of “radial” stiffness with a low degree of “longitudinal” stiffness. In the deployed state, the frame exerts a relatively high stress onto a vessel wall to maintain an effective seal, yet remains compliant in the longitudinal direction. Minor displacements of the support wire or catheter are therefore not translated to the filter. The looped support struts elongate when tensioned and assume a compressed and essentially linear form. While constrained in this linear state by a delivery catheter, the support struts exert minimal stress onto the delivery system. The overall delivery profile and stiffness are therefore reduced. When the delivery catheter constraint is removed during deployment, the struts “snap open” and assume a looped configuration which exert a high degree of force onto the vessel wall, creating an enhanced filter to vessel wall seal. In addition, the looped struts and the central collar connecting the support struts to the support wire, are positioned essentially within the plane of the filter opening. The overall deployed length of the embolic filter is therefore reduced.

    摘要翻译： 一种改进的栓塞过滤器框架，具有环形支撑支柱。 框架结构提供增强的纵向顺应性，改进的针对血管壁的密封，薄型输送和短部署长度。 环形支撑支柱具有高度的“径向”刚度，具有低度的“纵向”刚度。 在展开状态下，框架在容器壁上施加相当高的应力以保持有效的密封，但在长度方向保持柔顺。 因此，支撑线或导管的较小位移不会转换为过滤器。 环形支撑件在张紧时伸长并呈现压缩且基本线性的形式。 虽然通过输送导管在这种线性状态下被约束，但是支撑支柱对输送系统施加最小的压力。 因此，总体输送轮廓和刚度降低。 当在展开期间移除输送导管约束时，支柱“卡扣开放”并且采取环形结构，其向血管壁施加高度的力，从而产生增强的血管壁密封过滤器。 此外，环形支柱和将支撑支柱连接到支撑线的中心轴环基本上位于过滤器开口的平面内。 因此，栓塞过滤器的整体部署长度减小。