The intravenous catheter (100, 200) includes the flexible plastic catheter tube (102) having proximal end (104) and distal end (106), the catheter hub (112, 112-A, 112-B, 112-C, 198) having inner chamber (114, 202) in fluid connection the catheter tube (102). The intravenous catheter (100, 200) further includes the needle (110) adapted to extend along the catheter tube (102). The intravenous catheter further includes the needle cover (146, 146-A) connected to the catheter hub (112, 112-A, 112-B, 112-C, 198). The needle cover (146, 146-A) has the tubular sleeve (150, 150-A) with the slit (152, 152-A) and the bore (154, 154-A) for receiving the needle (110) such that when the needle (110) is retracted from the needle cover (146, 146-A), the needle cover (146, 146-A) which is in tight fit relationship with the catheter hub (112, 112-A, 112-B, 112-C, 198) disengages the catheter hub (112, 112-A, 112-B, 112-C, 198).
