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    • 9. 发明申请
    • EPTFE FILL OF COIL FILAR GAPS
    • EPTFE填充线圈盖
    • US20100125321A1
    • 2010-05-20
    • US12576706
    • 2009-10-09
    • Mark C. LYNNShrojalkumar Desai
    • Mark C. LYNNShrojalkumar Desai
    • A61N1/05H01B13/00
    • A61N1/0563A61N1/056Y10T29/49117
    • A medical electrical lead includes a coiled electrode. In one example, the coiled electrode includes two conductive filars wound in parallel to define a plurality of turns and a gap between each turn. A polymeric filling is disposed in at least some of the gaps existing between each of the turns. The polymeric filling can include multiple layers of a thin polymeric film or a non-conductive, polymeric filar. The coiled electrode also includes a polymeric covering disposed over the outer surface of the electrode. The polymeric covering is bonded to the polymeric filling disposed in the gaps. The polymeric film includes a non-expanded polymer and the polymeric cover includes an expanded polymer. In some examples the non-expanded polymer is polytetrafluoroethylene (PTFE) and the non-expanded polymer is expanded polytetrafluoroethylene (ePTFE).
    • 医用电线包括线圈电极。 在一个示例中,线圈电极包括平行缠绕的两个导电丝,以限定多个匝数和每匝之间的间隙。 聚合物填充物设置在每个匝之间存在的至少一些间隙中。 聚合物填充物可以包括多层薄聚合物膜或非导电聚合物丝。 线圈电极还包括设置在电极的外表面上的聚合物覆盖物。 聚合物覆盖物结合到设置在间隙中的聚合物填充物。 聚合物膜包括非发泡聚合物,聚合物覆盖物包括发泡聚合物。 在一些实例中,非发泡聚合物是聚四氟乙烯(PTFE),非发泡聚合物是膨胀聚四氟乙烯(ePTFE)。