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    • 7. 发明申请
    • SYSTEM AND METHOD FOR INTRACRANIAL ACCESS
    • 用于入门访问的系统和方法
    • US20090030400A1
    • 2009-01-29
    • US12178521
    • 2008-07-23
    • Arani BoseDavid BarryDelilah HuiBen Tompkins
    • Arani BoseDavid BarryDelilah HuiBen Tompkins
    • A61M25/088
    • A61M25/0054A61M25/0023A61M25/005A61M25/0053A61M25/0068A61M25/008A61M25/0108A61M27/006A61M2025/0046
    • A delivery catheter for accessing the intra-cranial vascular includes a rigid proximal section and a distal section having an outer diameter and flexibility suitable for advancement into the intra-cranial vasculature, such as the Petrous segment or the Cavernous segment of the internal carotid artery. The wall thickness and rigidity of the catheter decrease from the proximal section to the distal section, preferably in discrete segments each having reduced wall thickness and/or durometer relative to proximally adjacent sections. An intra-cranial access system includes the delivery catheter and a selection catheter insertable through the lumen of the delivery catheter. The selection catheter is shaped to facilitate selection of the target branch of the neurovasculature off the aortic arch and allows the delivery catheter to be advanced over the selection catheter into the selected branch.
    • 用于进入颅内血管的输送导管包括刚性近端部分和远端部分,其具有适合于进入颅内脉管系统的外径和弹性的远端部分,例如内侧颈动脉的石质部分或海绵状部分。 导管的壁厚度和刚度从近端部分到远侧部分减小,优选地相对于近侧相邻部分具有减小的壁厚度和/或硬度的离散部分。 颅内存取系统包括输送导管和可插入通过输送导管内腔的选择导管。 选择导管被成形为便于从主动脉弓上选择神经血管的目标分支,并允许输送导管在选择导管上前进到所选择的分支中。