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    • 118. 发明专利
    • Embolic coil detachment mechanism with flexible distal member and electrically-resistive heating element
    • 具有柔性半导体元件和电动加热元件的嵌入式线圈分离机构
    • JP2013212371A
    • 2013-10-17
    • JP2013068455
    • 2013-03-28
    • Depuy Synthes Products Llcデピュイ・シンセス・プロダクツ・エルエルシーDePuy Synthes Products, LLC
    • LORENZO JUAN A
    • A61B17/12
    • A61B17/1214A61B2017/12077A61B2090/037
    • PROBLEM TO BE SOLVED: To provide an embolic coil detachment system in regard to a system and a method for delivering an embolic coil to a treatment region in a patient's vasculature.SOLUTION: An embolic coil detachment system includes a slender flexible polymer tube having a tubular wall with an inner wall surface defining a lumen. A distal portion of the tubular wall has a cut line, and a resistive heating element is located near the cut line and brought into direct contact with a surface of the distal portion of the tubular wall, to directly heat a distal portion of the flexible polymer tube adjacent to the cut line. A therapeutic embolic coil includes a headpiece which is releasably attached inside the distal portion of the flexible polymer tube, and the headpiece can be released by heating the distal portion of the tubular shaft to separate the distal portion of the tubular wall along the cut line.
    • 要解决的问题:提供关于系统的栓塞线圈分离系统和用于将栓塞线圈输送到患者脉管系统中的治疗区域的方法。解决方案:栓塞线圈分离系统包括细长的柔性聚合物管,其具有管状 具有限定内腔的内壁表面的壁。 管状壁的远侧部分具有切割线,并且电阻加热元件位于切割线附近并与管状壁的远端部分的表面直接接触,以直接加热柔性聚合物的远端部分 管道与切割线相邻。 治疗性栓塞线圈包括可释放地附接在柔性聚合物管的远端部分内的头盔,并且通过加热管状轴的远端部分可以释放头盔,以沿着切割线分离管状壁的远端部分。