Coiled wire conductor insulation for biomedical lead
    4.
    发明授权
    Coiled wire conductor insulation for biomedical lead 失效
    生物医学铅线圈导线绝缘

    公开(公告)号:US5796044A

    公开(公告)日:1998-08-18

    申请号:US797435

    申请日:1997-02-10

    IPC分类号: A61N1/05

    CPC分类号: A61N1/056

    摘要: A biomedical lead conductor body formed of a coiled wire conductor that is sheathed loosely within a coiled insulative sheath of biocompatible and biostable material allowing a gap or space to be present between the exterior surface of the coiled wire conductor and the adjacent interior surface of the insulative sheath. The coiled insulative sheath is loosely fitted around the coiled wire conductor in order to compensate for defects in the coiled insulative sheath by spreading any corrosion of the wire that may take place because of the defect away from the site of a defect and along the surface of the coiled wire conductor. The lead body is incorporated into unipolar, bipolar or multi-polar biomedical leads having single filar coil windings, or multi-filar coil windings that may be redundantly electrically connected. The coiled wire conductors and coiled insulative sheaths may be parallel-wound and/or coaxially wound within the outer lead body insulative sheath. The individual coiled wire conductors may be formed of single filar wire or multi-filar wire cable and formed of single composition or composite conductive metals. The proximal and distal wire ends of the coiled wire conductors that are electrically connected in common are connected to lead connector elements and operative elements, respectively.

    摘要翻译: 由螺旋导线导体形成的生物医学引线导体,其松动地套在生物相容性和生物稳定材料的线圈绝缘护套内,允许在线圈导线的外表面与绝缘的相邻内表面之间存在间隙或空间 鞘。 线圈绝缘护套松动地安装在线圈导线周围,以便通过扩展线路的任何腐蚀来补偿线圈绝缘护套中的缺陷,这是由于缺陷远离缺陷位置而发生的,并且沿着 线圈导线。 引线体被并入具有单个线圈绕组的单极,双极或多极生物医学引线,或者可以冗余地电连接的多线圈绕组。 螺旋导线导体和线圈绝缘护套可以在外引线体绝缘护套内并行缠绕和/或同轴缠绕。 单个线圈导线可以由单根丝线或多丝绳电缆形成,并且由单一组成或复合导电金属形成。 共同电连接的线圈导线的近端和远端线端分别连接到引线连接器元件和操作元件。

    Pacing lead insulator
    5.
    发明授权
    Pacing lead insulator 失效
    起搏绝缘子

    公开(公告)号:US5419921A

    公开(公告)日:1995-05-30

    申请号:US312256

    申请日:1994-09-26

    IPC分类号: A61N1/02 A61N1/04 B05D5/12

    CPC分类号: A61N1/02 A61N1/05

    摘要: The present invention provides resistance to degradation from environmental stress cracking (ESC) and metal ion induced oxidation (MIO) for implantable, flexible pacing lead insulators having a body of polyether polyurethane elastomer material. A thin layer of a second polyurethane elastomer is applied as an overcoat to the lead insulator body. The second polyurethane is more resistant to ESC and MIO than the elastomer comprising the body of the insulator. Because ESC and MIO are surface phenomina, only a thin layer of the second material is required and the mechanical properties of the base material will determine the overall mechanical properties of the lead insulator.

    摘要翻译: 本发明提供对具有聚醚聚氨酯弹性体材料体的可植入,柔性起搏引线绝缘子的环境应力开裂(ESC)和金属离子诱导氧化(MIO)的降解性。 将第二聚氨酯弹性体的薄层作为外涂层施加到引线绝缘体主体。 第二聚氨酯比包含绝缘体主体的弹性体更耐ESC和MIO。 因为ESC和MIO是表面的,所以仅需要第二材料的薄层,并且基材的机械性能将决定铅绝缘体的整体机械性能。

    Pacing lead insulator
    6.
    发明授权
    Pacing lead insulator 失效
    起搏绝缘子

    公开(公告)号:US5375609A

    公开(公告)日:1994-12-27

    申请号:US33529

    申请日:1993-03-22

    IPC分类号: A61N1/02 A61N1/04

    CPC分类号: A61N1/02 A61N1/05

    摘要: The present invention provides resistance to degradation from environmental stress cracking (ESC) and metal ion induced oxidation (MIO) for implantable, flexible pacing lead insulators having a body of polyether polyurethane elastomer material. A thin layer of a second polyurethane elastomer is applied as an overcoat to the lead insulator body. The second polyurethane is more resistant to ESC and MIO than the elastomer comprising the body of the insulator. Because ESC and MIO are surface phenomina, only a thin layer of the second material is required and the mechanical properties of the base material will determine the overall mechanical properties of the lead insulator.

    摘要翻译: 本发明提供对具有聚醚聚氨酯弹性体材料体的可植入,柔性起搏引线绝缘子的环境应力开裂(ESC)和金属离子诱导氧化(MIO)的降解性。 将第二聚氨酯弹性体的薄层作为外涂层施加到引线绝缘体主体。 第二聚氨酯比包含绝缘体主体的弹性体更耐ESC和MIO。 因为ESC和MIO是表面的,所以仅需要第二材料的薄层,并且基材的机械性能将决定铅绝缘体的整体机械性能。

    Multi-component lead body for medical electrical leads
    10.
    发明授权
    Multi-component lead body for medical electrical leads 失效
    医用电线多部件引线体

    公开(公告)号:US5968087A

    公开(公告)日:1999-10-19

    申请号:US990219

    申请日:1997-12-15

    IPC分类号: A61N1/05 A61N1/39

    摘要: A medical electrical lead having an elongated lead body carrying a conductor therein, the lead body being formed of an inner sleeve of a first, relatively more rigid plastic and an outer sheath of a second, relatively less rigid plastic, the inner sleeve having a tubular portion and having outwardly extending helical ridges extending along its length, the ridges having lateral wall surfaces extending radially from the tubular portion and an outer sheath over the inner sleeve and in contact with the lateral wall surfaces of the inner sleeve. A fixation helix may be mounted at the distal end of the lead body and a conductor, which is also rotatable relative to the lead body may be located within the inner, tubular sleeve. Conductors may also be located between the ridges of the inner sleeve, embedded in the outer sheath.

    摘要翻译: 一种具有在其中承载导体的细长引线体的医用电引线,所述引线主体由第一相对较刚性的塑料的内套和第二相对较不刚性的塑料的外护套形成,所述内套具有管状 并且具有沿着其长度延伸的向外延伸的螺旋脊,脊具有从管状部分径向延伸的侧壁表面,并且外护套在内套筒上方并与内套筒的侧壁表面接触。 固定螺旋可以安装在引线主体的远端处,并且也可以相对于引线主体旋转的导体可以位于内部管状套筒内。 导体也可以位于内套筒的脊之间,嵌入外护套中。