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    • 4. 发明授权
    • Intravascular catheter
    • 血管内导管
    • US5662622A
    • 1997-09-02
    • US409973
    • 1995-04-04
    • Susana M. GoreMark MuellerNicholas GreenJeffrey G. GoldPeter P. Soltesz
    • Susana M. GoreMark MuellerNicholas GreenJeffrey G. GoldPeter P. Soltesz
    • A61M25/00A61M25/16
    • A61M25/0012A61M25/0053A61M25/0054Y10S264/52
    • An intravascular catheter carries a helical reinforcement member embedded within at least a portion of the tubular wall of the catheter. The helical reinforcement member comprises a helical first portion having coils of greater pitch than the pitch of helical coils of a second portion. Preferably, the catheter is for insertion into brain arteries, and comprises a flexible tube having an outer diameter of no more that about 0.05 inch, for example 3 French or smaller. The flexible tube defines outer and inner tubular layers. The inner tubular layer surrounds a catheter lumen and comprises a chemically inert fluorinated polymer such as PTFE. The outer tubular layer comprises at least three longitudinally spaced, connected tubular sections. The sections are of successively increasing flexibility from the proximal toward the distal catheter end. Also, manufacturing methods are disclosed pertaining to increasing the flexibility of a section of the catheter and joining together in abutting relation a pair of dissimilar catheter reinforcement members.
    • 血管内导管承载嵌入在导管的管状壁的至少一部分内的螺旋加强构件。 螺旋加强构件包括螺旋形第一部分,其具有比第二部分的螺旋线圈的螺距更大的螺距的线圈。 优选地,导管用于插入脑动脉,并且包括具有不超过约0.05英寸(例如3 French French)或更小的外径的柔性管。 柔性管限定外部和内部管状层。 内部管状层围绕导管内腔并且包含化学惰性的氟化聚合物如PTFE。 外部管状层包括至少三个纵向间隔开的连接的管状部分。 这些部分从近端到远端导管末端依次增加的灵活性。 此外,公开了关于增加导管的一部分的柔性并且以对接关系将一对不同的导管加强构件接合在一起的制造方法。
    • 6. 发明授权
    • Intravascular catheter and method of manufacturing
    • 血管内导管及其制造方法
    • US5711909A
    • 1998-01-27
    • US647205
    • 1996-05-09
    • Susana M. GoreMark MuellerNicholas GreenJeffrey G. GoldPeter P. Soltesz
    • Susana M. GoreMark MuellerNicholas GreenJeffrey G. GoldPeter P. Soltesz
    • A61M25/00A61M25/16B29C53/08
    • A61M25/0012A61M25/0053A61M25/0054Y10S264/52
    • An intravascular catheter carries a helical reinforcement member embedded within at least a portion of the tubular wall of the catheter. The helical reinforcement member comprises a helical first portion having coils of greater pitch than the pitch of helical coils of a second portion. Preferably, the catheter is for insertion into brain arteries, and comprises a flexible tube having an outer diameter of no more that about 0.05 inch, for example 3 French or smaller. The flexible tube defines outer and inner tubular layers. The inner tubular layer surrounds a catheter lumen and comprises chemically inert fluorinated polymer such as PTFE. The outer tubular layer comprises at least three longitudinally spaced, connected tubular sections. The sections are of successively increasing flexibility from the proximal toward the distal catheter end. Also, manufacturing methods are disclosed pertaining to increasing the flexibility of a section of the catheter and joining together in abutting relation a pair of dissimilar catheter reinforcement members.
    • 血管内导管承载嵌入在导管的管状壁的至少一部分内的螺旋加强构件。 螺旋加强构件包括螺旋形第一部分,其具有比第二部分的螺旋线圈的螺距更大的螺距的线圈。 优选地,导管用于插入脑动脉,并且包括具有不超过约0.05英寸(例如3 French French)或更小的外径的柔性管。 柔性管限定外部和内部管状层。 内部管状层围绕导管内腔并且包括化学惰性的氟化聚合物如PTFE。 外部管状层包括至少三个纵向间隔连接的管状部分。 这些部分从近端到远端导管末端依次增加的灵活性。 此外,公开了关于增加导管的一部分的柔性并且以邻接关系将一对不同的导管加强构件接合在一起的制造方法。