CATHETER SYSTEM WITH BALLOON-OPERATED FILTER SHEATH AND FLUID FLOW MAINTENANCE
    12.
    发明申请
    CATHETER SYSTEM WITH BALLOON-OPERATED FILTER SHEATH AND FLUID FLOW MAINTENANCE 审中-公开
    带气动操作过滤器的导管系统和流体流动维护

    公开(公告)号:US20140277075A1

    公开(公告)日:2014-09-18

    申请号:US13795248

    申请日:2013-03-12

    Applicant: MEDRAD, INC.

    Abstract: A catheter system includes an inflatable structural balloon and collapsible filter. The collapsible filter is deployable into an expanded configuration using the inflatable distal balloon. In the expanded configuration, one or more flow cells are formed between inflated portions of the balloon to provide continuous fluid flow between proximal and distal ends of the structural balloon. In the expanded configuration, the filter is configured to prevent particulates (e.g., dislodged thrombus, or other particulate material) from migrating beyond the filter. In the expanded configuration, the inflated structural balloon biases a perimeter of the filter toward or against a subject vessel wall.

    Abstract translation: 导管系统包括可充气结构气囊和可折叠过滤器。 可折叠过滤器可使用充气远端气囊展开成扩展配置。 在膨胀构造中,在气囊的膨胀部分之间形成一个或多个流动池,以在结构气囊的近端和远端之间提供连续的流体流动。 在扩展配置中,过滤器被配置为防止颗粒(例如,移出的血栓或其它颗粒材料)迁移到过滤器之外。 在膨胀构型中,膨胀的结构气囊朝向或抵靠主体血管壁偏压过滤器的周边。

    INFUSION FLOW GUIDEWIRE SYSTEM
    13.
    发明申请
    INFUSION FLOW GUIDEWIRE SYSTEM 有权
    输液流导管系统

    公开(公告)号:US20140094835A1

    公开(公告)日:2014-04-03

    申请号:US14100155

    申请日:2013-12-09

    Applicant: MEDRAD, Inc.

    Abstract: An infusion flow guidewire and a system including an infusion flow guidewire. The minimal cross section flexible infusion flow guidewire includes a nitinol hypotube, a flexible tip having a closed distal end, a coil, a core wire and at least one distally located rearwardly directed jet orifice for infusion of fibrinolytics and for introduction of high pressure fluids for maceration and rearwardly directed flow of thrombus debris located in tortuous small sized vessels. Apparatus, some of which is removably attachable, is provided in the system for grasping members of the invention for rotational torqueing and for longitudinal actuation along and within the vasculature.

    Abstract translation: 输液流动导丝和包括输注流导丝的系统。 最小横截面柔性灌注流导丝包括镍钛诺海波管,具有封闭远端的柔性末端,线圈,芯线和至少一个向远侧位于的向后指向的喷射孔,用于输注纤维蛋白溶解剂并引入高压流体 位于曲折的小型血管中的浸润和向后的血栓碎屑流。 在系统中设置有一些可移除地附接的装置,用于将本发明的构件用于旋转扭矩并沿着和在脉管系统内沿纵向致动。

    ENHANCED CROSS STREAM MECHANICAL THROMBECTOMY CATHETER
    14.
    发明申请
    ENHANCED CROSS STREAM MECHANICAL THROMBECTOMY CATHETER 有权
    增强交叉机械液压导管

    公开(公告)号:US20140088610A1

    公开(公告)日:2014-03-27

    申请号:US14090179

    申请日:2013-11-26

    Applicant: MEDRAD, Inc.

    Abstract: A thrombectomy catheter includes a catheter body having a catheter lumen. An outflow orifice is positioned along a catheter perimeter. A fluid jet emanator communicates with a high pressure tube. The fluid jet emanator includes at least one jet orifice for directing a fluid jet from the fluid jet emanator through the catheter lumen toward the outflow orifice. The fluid jet emanator provides a jet stream from the catheter body through the outflow orifice. The jet stream includes first and second stream portions. An entrainment fluid flow circuit includes at least the first stream portion, and the entrainment fluid flow circuit entrains particulate and macerates the particulate therein. An exhaust fluid flow path includes the second stream portion, and the exhaust fluid flow path draws entrained particulate from the entrainment fluid flow circuit at a location exterior to the catheter body and directs it toward the catheter proximal portion.

    Abstract translation: 血栓切除导管包括具有导管内腔的导管体。 沿着导管周边设置流出口。 流体喷射发生器与高压管连通。 流体喷射发生器包括至少一个喷射孔,用于将流体射流从流体射流发射器引导通过导管腔朝向流出孔。 流体喷射发射器从导管主体提供通过流出孔的喷射流。 喷射流包括第一和第二流部分。 夹带流体流动回路包括至少第一流部分,并且夹带流体流动回路夹带颗粒并将颗粒浸入其中。 废气流动路径包括第二流部分,并且排出流体流动通道在夹带流体流动回路的导管主体外部的位置处将夹带的颗粒引导到导管近端部分。

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