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    • 1. 发明授权
    • Fluoroscopically viewable guidewire
    • 荧光透视导丝
    • US5460187A
    • 1995-10-24
    • US270034
    • 1994-07-01
    • James B. DaigleRichard M. DeMelloBruce W. Flight
    • James B. DaigleRichard M. DeMelloBruce W. Flight
    • A61M25/00A61B5/00A61M25/01A61M25/09
    • A61M25/09A61M2025/09166A61M2025/09175
    • A guidewire adapted to be inserted into a vascular vessel or into a catheter that is to be inserted into a vascular vessel or the like. The guidewire comprises a coil of flexible radiotransparent wire having a proximal section and a distal section. The proximal section is formed of a coil of wire having abutting turns and distal section is formed by the same coil of wire with the turns of wire being spaced from each other. A layer of radiopaque material of predetermined length is disposed in a predetermined location on the distal section, the interior of the layer being interstitially disposed within the outer surface of the coil. A hemispherical tip is disposed at the distal end of the distal section. A small braze is made at the juncture between the proximal section and the distal section to prevent spreading of the coils from the abutting relationship in the proximal end of said guidewire.
    • 一种适于插入血管容器或插入血管容器等的导管中的导丝。 导线包括具有近端部分和远端部分的柔性无线电透射线圈。 近侧部分由具有邻接匝的线圈形成,并且远端部分由相同的线圈线形成,线的匝彼此间隔开。 具有预定长度的不透射线材料层设置在远端部分上的预定位置,该层的内部间隙地设置在线圈的外表面内。 半球形尖端设置在远端部分的远端。 在近端部分和远端部分之间的接合部处形成小的铜焊,以防止线圈从所述导丝的近端处的邻接关系扩散。