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    • 7. 发明授权
    • Proximally tapered guidewire tip coil
    • 近端锥形导丝尖端线圈
    • US6132389A
    • 2000-10-17
    • US65646
    • 1998-04-23
    • Wayne E. CornishLawrence E. BrennanDavid M. AndersonMarc M. Jalisi
    • Wayne E. CornishLawrence E. BrennanDavid M. AndersonMarc M. Jalisi
    • A61B20060101A61B5/00A61M25/01A61M25/09
    • A61M25/09A61M2025/09083A61M2025/09175
    • The disclosure is directed to a guidewire having an elongate core member with at least one distally tapered portion at the distal section, with a flexible body member disposed around said distal section. The flexible body member is preferably comprised of a metallic helical coil that has proximally tapered portion at the proximal end, with a diameter similar to the outer diameter of the elongate core member at the point of attachment thereto. The distal end of the flexible body member is attached to the distal end of the elongate core member. The proximal taper of the flexible body member provides a smooth transition from the elongate core member to the flexible body member while minimizing the amount of bonding material needed and the resulting localized stiff portion at the point of connection between the proximal end of the flexible body member and the elongate body member.
    • 本发明涉及一种具有细长芯部件的导丝,该细长芯部件在远端部分具有至少一个远端锥形部分,其中柔性主体部件设置在所述远端部分周围。 柔性本体构件优选地包括金属螺旋线圈,该螺旋线圈在近端具有近端锥形部分,其直径与附接到其上的细长芯构件的外径相似。 柔性本体构件的远端附接到细长芯构件的远端。 柔性主体构件的近端锥形提供从细长芯构件到柔性主体构件的平滑过渡,同时最小化所需的接合材料的量以及在柔性本体构件的近端之间的连接点处的所得到的局部刚性部分 和细长主体构件。