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    • 6. 发明授权
    • Stiffening member in a rapid exchange dilation catheter
    • 加速成员在快速交换扩张导管
    • US6066114A
    • 2000-05-23
    • US150463
    • 1998-09-09
    • Rich L. GoodinSuranjan RoychowdhuryKatherine Prindle
    • Rich L. GoodinSuranjan RoychowdhuryKatherine Prindle
    • A61M29/02A61M29/00
    • A61M25/104A61M2025/0063A61M2025/0183A61M2025/1079
    • A dilation catheter having a first shaft section, a second shaft section attached to the first shaft section, and an inflatable balloon attached to the second shaft section. A fluid pathway is defined through the catheter for inflation of the balloon. A guide wire lumen is provided in the second shaft section that can extend between the distal end of the balloon and a point distal of the first shaft section. A stiffening member is provided within the second shaft section of the dilation catheter to provide additional stiffness to the second shaft section. In a preferred embodiment, the stiffening member is attached at the distal end of the first shaft section to occlude the hollow passage of the first shaft section. In this embodiment, the first shaft section further includes a fluid port that is proximal of the stiffening member and that extends between the hollow passage of the first shaft section and the exterior of the first shaft section. The second shaft section overlaps the first shaft section so that the hollow passage of the second shaft section is in fluid communication with the fluid port of the first shaft section to define the fluid flow pathway. The stiffening member is free from fixed interconnection at its distal end, and includes a linear tapered region along a portion of its length to provide a gradient of stiffness to the second shaft section along the length of the stiffening member.
    • 扩张导管,其具有第一轴部分,附接到第一轴部分的第二轴部分和附接到第二轴部分的可充气球囊。 通过导管限定流体通道以使气囊膨胀。 导丝管腔设置在第二轴部分中,其能够在球囊的远端与第一轴部分的远端之间延伸。 加强构件设置在扩张导管的第二轴部分内,以向第二轴部分提供额外的刚度。 在优选实施例中,加强构件附接在第一轴部分的远端处以封闭第一轴部分的中空通道。 在该实施例中,第一轴部还包括位于加强构件的近侧并且在第一轴部分的中空通道和第一轴部分的外部之间延伸的流体端口。 第二轴部分与第一轴部分重叠,使得第二轴部分的中空通道与第一轴部分的流体端口流体连通以限定流体流动路径。 加强构件在其远端处没有固定互连,并且包括沿其长度的一部分的线性锥形区域,以沿着加强构件的长度向第二轴部分提供刚度梯度。
    • 9. 发明授权
    • Stiffening member in a rapid exchange dilation catheter
    • 加速成员在快速交换扩张导管
    • US06361529B1
    • 2002-03-26
    • US09576782
    • 2000-05-23
    • Rich L. GoodinSuranjan RoychowdhuryKatherine Prindle
    • Rich L. GoodinSuranjan RoychowdhuryKatherine Prindle
    • A61M2500
    • A61M25/104A61M2025/0063A61M2025/0183A61M2025/1079
    • A dilation catheter having a first shaft section, a second shaft section attached to the first shaft section, and an inflatable balloon attached to the second shaft section. A fluid pathway is defined through the catheter for inflation of the balloon. A guide wire lumen is provided in the second shaft section that can extend between the distal end of the balloon and a point distal of the first shaft section. A stiffening member is provided within the second shaft section of the dilation catheter to provide additional stiffness to the second shaft section. In a preferred embodiment, the stiffening member is attached at the distal end of the first shaft section to occlude the hollow passage of the first shaft section. In this embodiment, the first shaft section farther includes a fluid port that is proximal of the stiffening member and that extends between the hollow passage of the first shaft section and the exterior of the first shaft section. The second shaft section overlaps the first shaft section so that the hollow passage of the second shaft section is in fluid communication with the fluid port of the first shaft section to define the fluid flow pathway. The stiffening member is free from fixed interconnection at its distal end, and includes a linear tapered region along a portion of its length to provide a gradient of stiffness to the second shaft section along the length of the stiffening member.
    • 扩张导管,其具有第一轴部分,附接到第一轴部分的第二轴部分和附接到第二轴部分的可充气球囊。 通过导管限定流体通道以使气囊膨胀。 导丝管腔设置在第二轴部分中,其能够在球囊的远端与第一轴部分的远端之间延伸。 加强构件设置在扩张导管的第二轴部分内,以向第二轴部分提供额外的刚度。 在优选实施例中,加强构件附接在第一轴部分的远端处以封闭第一轴部分的中空通道。 在该实施例中,第一轴部分还包括位于加强构件的近侧并且在第一轴部分的中空通道和第一轴部分的外部之间延伸的流体端口。 第二轴部分与第一轴部分重叠,使得第二轴部分的中空通道与第一轴部分的流体端口流体连通以限定流体流动路径。 加强构件在其远端处没有固定互连,并且包括沿其长度的一部分的线性锥形区域,以沿着加强构件的长度向第二轴部分提供刚度梯度。