INTRAOPERATIVE AND POST-OPERATIVE ADJUSTMENT OF AN ANNULOPLASTY RING
    1.
    发明申请
    INTRAOPERATIVE AND POST-OPERATIVE ADJUSTMENT OF AN ANNULOPLASTY RING 审中-公开
    手术和手术后调整ANNOPOPLASTY环

    公开(公告)号:US20120136433A1

    公开(公告)日:2012-05-31

    申请号:US13172531

    申请日:2011-06-29

    Abstract: An intraoperative adjustment device is described. In some embodiments, the device includes an elongate body including a proximal end and a distal end, the distal end configured to penetrate an outer surface of an adjustable cardiac implant implanted in a patient's heart, and the proximal end and the distal end connected by at least one energy-transfer member. In some embodiments, the distal end includes at least one electrode coupled to the energy-transfer member and configured to deliver an activation energy to the adjustable cardiac implant. In some embodiments, the proximal end is configured to attach to an energy source that provides the activation energy. In some embodiments, the proximal end is configured to be located outside the patient's body while the distal end is coupled to the adjustable cardiac implant that is implanted in the patient's heart.

    Abstract translation: 描述了术中调整装置。 在一些实施例中,该装置包括细长主体,其包括近端和远端,远端构造为穿透植入患者心脏的可调心脏植入物的外表面,并且近端和远端通过 至少一个能量传递构件。 在一些实施例中,远端包括耦合到能量传递构件并且被配置为将活化能传递到可调心脏植入物的至少一个电极。 在一些实施例中,近端被配置为附接到提供激活能量的能量源。 在一些实施例中,近端构造成位于患者身体外部,而远端联接到植入患者心脏的可调心脏植入物。

    Secure stent for maintaining a lumenal opening
    9.
    发明申请
    Secure stent for maintaining a lumenal opening 审中-公开
    用于保持管腔开口的固定支架

    公开(公告)号:US20030135268A1

    公开(公告)日:2003-07-17

    申请号:US09547708

    申请日:2000-04-11

    Inventor: Ashvin Desai

    Abstract: A secure stent for maintaining a lumenal opening constructed preferably as a tubular structure of NiTi material or bioabsorbable polymers. The circumference of the tube is preferably in the shape of a polygon in contrast to the circular or oval shape of a body lumen into which the stent is to be placed. The polygon shape and ribs provides interference with the lumen wall and resists stent migration. The diameter of the stent tube is configured with each end enlarged providing flanges for interference with a lumen wall. The central portion of the stent is also bulged out to an increased diameter to provide an enhanced lumen wall resistance to avoid migration. In addition, the locking feature of a ribbed structure prevents the stent from collapsing, and thereby maintains the lumen opening. The stent is preferably constructed from polymers, including bioabsorbable polymers, and/or super elastic materials. The bioabsorbable polymer construction aids removal by causing the tube diameter to collapse. Removal of the stent can therefore be accomplished by simply grasping the proximal end of the stent. Alternatively, a stent constructed entirely of bioabsorbable material will eventually be entirely absorbed, avoiding the need for removal. Alternatively, the stent can be preferably constructed of NiTi or other shape memory material and set in the desired shape at a high temperature. Installation is accomplished by cooling the stent to the malleable Martensite state and winding it on a small diameter mandrel of an insertion/removal tool. The compacted stent is then placed in a probe and inserted in a body lumen, whereupon it is heated to an Austenite state where it regains its spring tension, forcing it back toward the set shape. Removal is accomplished by cooling the stent to the malleable Martensite state and pulling it out. If the selected material is bioabsorbable, the stent generally does not have to be removed.

    Abstract translation: 一种用于保持内窥镜开口的安全支架,优选地构造为NiTi材料或生物可吸收聚合物的管状结构。 与放置支架的体腔的圆形或椭圆形形状相比,管的周长优选为多边形。 多边形形状和肋骨提供与腔壁的干涉并抵抗支架迁移。 支架管的直径被构造成每个端部被扩大,提供用于与腔壁干涉的凸缘。 支架的中心部分也凸起到增加的直径以提供增强的内壁壁阻力以避免迁移。 此外,肋状结构的锁定特征防止支架塌陷,从而保持管腔开口。 支架优选由聚合物构成,包括生物可吸收聚合物和/或超弹性材料。 生物可吸收的聚合物构造有助于通过使管直径崩溃而去除。 因此,可以通过简单地抓住支架的近端来实现支架的移除。 或者,完全由生物可吸收材料构成的支架将最终被完全吸收,避免了移除的需要。 或者,支架可以优选地由NiTi或其它形状记忆材料构成,并且在高温下设置为所需形状。 通过将支架冷却到可延展的马氏体状态并将其卷绕在插入/移除工具的小直径心轴上来实现安装。 然后将压实的支架放置在探针中并插入体腔中,然后将其加热到奥氏体状态,其中恢复其弹簧张力,迫使其回到固定形状。 通过将支架冷却到可延展的马氏体状态并将其拉出来实现去除。 如果所选择的材料是生物可吸收的,则支架通常不必被去除。

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