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    • 3. 发明公开
    • Embolic coil detachment mechanism with flexible distal member and coupling union
    • 栓塞弹性机构,远端元件和Kupplung
    • EP2644129A2
    • 2013-10-02
    • EP13162030.4
    • 2013-04-02
    • DePuy Synthes Products, LLC
    • Lorenzo, Juan A.
    • A61B17/12
    • A61B17/12031A61B17/12113A61B17/12154A61B2017/00004A61B2017/00871A61B2017/12068A61B2017/12072A61B2017/12077
    • Provided herein are a system and method for detaching a therapeutic device, e.g. an embolic coil (144), from a delivery tube (102) at a target site in a patient's body. The system includes a bead (126) disposed against a distal end of the therapeutic device (140) that retains the therapeutic device to the delivery tube in a first compressed configuration through a coupling union (130) comprising a series of connectors. The series of connectors may include a stretch resistant member (124) through which the bead is attached to an anchor (122) inside the therapeutic device. The anchor, in turn, may be disposed against a thermally responsive element (116) comprised of a polymeric material configured to melt or otherwise change configuration to release the anchor, and with it, to also release the therapeutic device. Energy may be supplied to the thermally responsive element through electrical conductors (104,106) and a resistive heating element (112) disposed within the delivery tube.
    • 本文提供了用于分离治疗装置的系统和方法,例如, 栓塞线圈(144),其位于患者体内的靶部位处的输送管(102)。 该系统包括抵靠治疗装置(140)的远端设置的胎圈(126),其通过包括一系列连接器的联接接头(130)将处理器件以第一压缩构型保持在输送管上。 所述连接器系列可以包括抗拉构件(124),所述胎圈通过所述抗拉构件附接到所述治疗装置内部的锚固件(122)。 锚固件又可以抵靠由构造成熔化或以其它方式改变构型以释放锚固件的聚合物材料构成的热响应元件(116),并且与其一起释放治疗装置。 可以通过布置在输送管内的电导体(104,106)和电阻加热元件(112)将能量提供给热响应元件。