The intravenous catheter insertion apparatus has a catheter integral with a pre-slit injection site, a blunt cannula adapted for piercing the septum of the pre-slit injection site, and a tube slidably housing a needle. In a preferred embodiment, the needle tube and blunt cannula are integral with each...http://www.google.fr/patents/US6213978?utm_source=gb-gplus-shareBrevet US6213978 - Intravenous catheter insertion apparatus