An introducer needle for catheter and introducer needle assembly

摘要

Abstract The present invention provides an introducer needle for the catheter and introducer needle assembly, comprising a notch for flashback and a 5 crimped bump. Compared with the introducer needle with the ferrule design, the introducer needle of the invention is inexpensive, and has optimal flash back flow. I) 4: 'I V I' ( I -- -- Q I