IMPROVEMENT IN INTRAVENOUS CATHETER SET AND INTRAVENOUS NEEDLE SET

摘要

A needle-inside, catheter placement assembly including a needle and a catheter unit comprising a catheter, winged catheter insertion means, flexible tubing and tube hub, wherein axial and rotational alignment of the needle and catheter unit are maintained by mechanically interlocked complementary means associated with the needle and lumen of the winged catheter insertion means. Means for removably connecting the proximal ends of the catheter unit and needle to stretch the flexible tubing tautly are also provided.