Catheter assemblies and injection molding processes and equipment for making the same
    1.
    发明申请
    Catheter assemblies and injection molding processes and equipment for making the same 审中-公开
    导管组件和注射成型工艺以及制造相同的设备

    公开(公告)号:US20090143767A1

    公开(公告)日:2009-06-04

    申请号:US12290448

    申请日:2008-10-30

    IPC分类号: A61M25/00 B28B5/00

    摘要: Various single-part catheter assemblies, multi-part integrated catheter assemblies, and methods for making the same are disclosed. The single-part catheter assemblies include a catheter hub integrally formed with a catheter tube for insertion into the bloodstream of a patient. The multi-part integrated catheter assemblies include a catheter hub integrally formed to a catheter tube for insertion into the bloodstream of a patient. The catheter assemblies of the invention may be injection molded in a single step or in multiple steps by injecting flows of molten plastic into a cavity of molds provided herein such that the flows converge into an even distribution about the circumference of the sleeve. The mold may have a core pin designed to fit into the cavity. Through the use of the even distribution of flows, the core pin may be seated within the cavity in an untensioned manner. The catheter assemblies of the invention may be produced of a single material or of multiple materials.

    摘要翻译: 公开了各种单一部件导管组件,多部分集成导管组件及其制造方法。 单组件导管组件包括与用于插入患者血流中的导管管一体形成的导管座。 多部分集成导管组件包括与导管管一体形成的用于插入患者血流的导管套管。 本发明的导管组件可以在单个步骤或多个步骤中通过将熔融塑料流注入本文提供的模具的空腔中而注射模制,使得流体围绕套筒的圆周收敛成均匀分布。 模具可以具有设计成适合于空腔的芯销。 通过使用均匀的流动分布,芯销可以以未张紧的方式安置在空腔内。 本发明的导管组件可以由单一材料或多种材料制成。