COOLED CONDUCTIVE BALLOON RF CATHETER FOR RENAL NERVE ABLATION
    23.
    发明申请
    COOLED CONDUCTIVE BALLOON RF CATHETER FOR RENAL NERVE ABLATION 审中-公开
    冷冻导电气球射频导管,用于肾神经退行

    公开(公告)号:US20160367316A1

    公开(公告)日:2016-12-22

    申请号:US15255573

    申请日:2016-09-02

    Abstract: A catheter includes a flexible shaft having a lumen arrangement and a length sufficient to access a target vessel of a patient. A balloon at the distal end of the shaft is fluidly coupled to the lumen arrangement. The balloon body comprises a first material and a second material different from the first material. The second material comprises a hydrophilic polymer that becomes electrically conductive in response to absorption of the conductive fluid. The fluid conductive regions facilitate perfusion of the conductive fluid through the balloon body to an inner wall of the target vessel during ablation of perivascular tissues. A cooling arrangement is configured for one of receiving a thermal transfer fluid from the lumen arrangement or facilitating perfusion of blood passing through the target vessel to cool the balloon body during ablation of the perivascular tissues.

    Abstract translation: 导管包括柔性轴,其具有管腔布置和足以进入患者的目标血管的长度。 在轴的远端处的气囊流体地联接到管腔装置。 球囊体包括第一材料和与第一材料不同的第二材料。 第二种材料包括响应于导电流体的吸收变得导电的亲水性聚合物。 流体导电区域便于在血管周围组织消融期间将导电流体通过球囊体灌注到目标血管的内壁。 冷却装置构造成用于接收来自管腔装置的热转移流体,或者促进血液通过靶血管的灌注,以在血管周围组织消融期间冷却球囊体。

    CARDIAC VALVE, SYSTEM AND METHOD
    26.
    发明申请
    CARDIAC VALVE, SYSTEM AND METHOD 审中-公开
    心脏瓣膜,系统和方法

    公开(公告)号:US20150088252A1

    公开(公告)日:2015-03-26

    申请号:US14556960

    申请日:2014-12-01

    CPC classification number: A61F2/2418 A61F2/2412 A61F2230/008

    Abstract: A cardiac valve with a support frame having a first end member and a second end member opposing the first end member in a substantially fixed distance relationship, and a cover extending over the support frame to allow for unidirectional flow of a liquid through the valve.

    Abstract translation: 具有支撑框架的心脏瓣膜具有第一端构件和与所述第一端构件基本上固定的距离关系相对的第二端构件,以及在所述支撑框架上延伸以允许液体通过所述瓣膜的单向流动的盖。

    VASCULAR SEALING DEVICE AND METHOD USING CLOT ENHANCING BALLOON AND ELECTRIC FIELD GENERATION
    27.
    发明申请
    VASCULAR SEALING DEVICE AND METHOD USING CLOT ENHANCING BALLOON AND ELECTRIC FIELD GENERATION 有权
    油封密封装置和使用加强气球和电场产生的方法

    公开(公告)号:US20130172886A1

    公开(公告)日:2013-07-04

    申请号:US13775136

    申请日:2013-02-23

    Abstract: An apparatus and method for closing an opening in a blood vessel wall is disclosed. The apparatus includes at least one member which is extended through a tissue tract formed through the epidermis and subcutaneous layer of skin and through the opening in the blood vessel. The member includes a proximal end and a distal end with the distal end being positionable proximate to the opening in the blood vessel wall. A positive electrode is positioned next to the distal end with a negative electrode being positioned next to the proximal end When the electrodes are energized an electric field is created therebetween, blood cells are attracted to the positive electrode, and a thrombus is formed at the opening in the blood vessel wall. The member may include a balloon at the distal end to temporarily occlude blood flow from the blood vessel to the tissue tract to facilitate formation of the thrombus. In addition, the shape of the balloon may be tailored to facilitate the formation of the thrombus including, but not limited to, the creation of pockets and self-supporting balloons

    Abstract translation: 公开了一种用于封闭血管壁中的开口的装置和方法。 该装置包括至少一个构件,其延伸穿过通过表皮和皮下皮肤层形成的组织通道并且穿过血管中的开口。 该构件包括近端和远端,远端可靠近血管壁中的开口定位。 正电极位于远端附近,负极位于近端的旁边。当电极通电时,电极之间产生电场,血细胞被吸引到正电极,并且在开口处形成血栓 在血管壁。 该构件可以包括在远端处的气囊,以暂时阻断从血管到组织道的血流,以促进血栓的形成。 此外,气囊的形状可以被调整以促进血栓的形成,包括但不限于创建口袋和自支撑气球

    Precision electrode movement control for renal nerve ablation

    公开(公告)号:US10743933B2

    公开(公告)日:2020-08-18

    申请号:US15130805

    申请日:2016-04-15

    Abstract: A catheter is configured to access a renal artery. A lumen of the catheter's shaft is dimensioned to receive a flexible actuation member which extends between the shaft's proximal and distal ends. The actuation member is moveable within the lumen and subject to elastic deformation, friction, and/or whip along its length. A flexible support member is coupled to a distal end of the actuation member and extendible beyond a distal tip of the shaft. An RF ablation electrode at a distal end of the support member is configured to ablated perivascular renal nerve tissue. A position converter at the distal end of the shaft is configured to convert movement of the actuation member into one or both of controlled rotational and axial movement of the support member and electrode to one of a multiplicity of stable circumferential positions substantially free of elastic deformation, friction, and/or whip impacting actuation member movement.

    REPLACEMENT HEART VALVE
    29.
    发明申请

    公开(公告)号:US20200146816A1

    公开(公告)日:2020-05-14

    申请号:US16730425

    申请日:2019-12-30

    Abstract: A replacement heart valve assembly has a stent frame and a replacement valve. The replacement valve has a plurality of leaflets and a valve frame. The leaflets are attached to the valve frame. Further, the assembly has a plurality of suspension struts attached to the stent frame and the valve frame. The valve frame is suspended within the stent frame via the suspension struts. In some embodiments, the assembly further has a sealing member attached to the stent frame to prevent leakage around the replacement heart valve assembly.

    System for nerve modulation and innocuous thermal gradient nerve block

    公开(公告)号:US10398464B2

    公开(公告)日:2019-09-03

    申请号:US14032553

    申请日:2013-09-20

    Abstract: Systems for nerve and tissue modulation are disclosed. An example system may include a first elongate element having a distal end and a proximal end and having at least one nerve modulation element disposed adjacent the distal end. The nerve modulation element may be positioned or moveable to target a particular target region. The nerve modulation element may be an ultrasound transducer. The nerve modulation element may be configured to be operated at a low intensity to provide a thermal nerve block or a high intensity to effect tissue modulation.

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