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    • 35. 发明授权
    • Angled hole ventricular catheter and method of making same
    • 角孔心室导管及其制作方法
    • US4784638A
    • 1988-11-15
    • US98097
    • 1987-09-17
    • Jamshid B. G. GhajarRobert J. HaririFathali G. Ghadjar
    • Jamshid B. G. GhajarRobert J. HaririFathali G. Ghadjar
    • A61M25/00A61M31/00
    • A61M25/0015A61M25/007
    • A catheter for placement into the ventricular system of the brain of a subject comprising a flexible elongated body having a wall thickness sufficient to contain and transport fluid therein and having a forward end and tip for insertion into the ventricular system of the brain of a subject; and a plurality of spaced apertures located in the forward end of the body spaced from the tip, each of the apertures extending through the wall thickness at an angle such that a portion of the wall thickness is visible when viewing the aperture perpendicular to the longitudinal axis of the body, thereby to minimize abrasion of brain tissue upon insertion of the catheter and to prevent choroid plexus and ependymal tissue from growing into the catheter apertures, thereby providing improved flow of fluid into or from said ventricular system. Also, methods of using and apparatus for making such catheters are disclosed herein.
    • 一种用于放置到受试者的脑的心室系统中的导管,包括具有足以容纳和输送流体的壁厚的柔性细长主体,并且具有用于插入受试者脑部的心室系统的前端和尖端; 以及多个间隔开的孔,位于主体的与尖端间隔开的前端中,每个孔以一定角度延伸穿过壁厚,使得当观察垂直于纵向轴线的孔时壁厚的一部分是可见的 从而在插入导管时最小化脑组织的磨损并且防止脉络丛和室管膜组织生长到导管孔中,由此提供流体进入或离开所述心室系统的改善的流动。 此外,本文公开了使用方法和制造这种导管的装置。