The intravenous catheter device (100) includes a catheter hub (102), a valve member (158), an actuator member (176) and a valve closure member (192). The valve member (158) includes a convex portion (162) provided with slits (170) defining prongs (172). The slits (170) are configured to open when a needle (116) is pierced through the slit (170) to puncture a vein of a patient. The valve closure member (192) is disposed inside the catheter hub (102) such that the first surface (194) of the valve closure member (192) abuts the convex portion (162) of the valve member (158). When the luer lock member (206) abutting the actuator member (176) inside the catheter hub (102) is disengaged, the valve closure member (192) is adapted to push the prongs (172), closing the passage (204) for the fluid flow and preventing blood flow from the punctured vein of the patient.