阅读说明：本技术 带有可封闭的针的导管针组件 (Catheter needle assembly with closeable needle ) 是由 雅各布·亨策尔 詹姆斯·黑尔 于 2020-03-19 设计创作，主要内容包括：一种针导管插入装置,包括导管-扩张器组件,针穿过该导管-扩张器组件,其中扩张器和针可相对于彼此移动,使得针导管插入装置可以从针的尖端被暴露的就绪位置移动到扩张器围包住针的屏护位置。针导管插入装置被定位到屏护位置可以通过将扩张器手动致动到针的毂内的锁定构型来实现。(A needle catheterization device includes a catheter-dilator assembly through which a needle passes, wherein a dilator and the needle are movable relative to each other such that the needle catheterization device may be moved from a ready position in which a tip of the needle is exposed to a shielded position in which the dilator surrounds the needle. Positioning of the needle catheter insertion device to the shielding position can be achieved by manually actuating the dilator to a locked configuration within the hub of the needle.)