A luer receiver catheter system (5) for fluid connection between a patient's vasculature and an external fluid system, the fluid system having a luer lock connector that includes a luer tip, the catheter system comprising: a catheter (10) sized to be inserted into a blood vessel, the catheter having a tip (15)； a luer receiver valve distributor (25) mounted with the catheter (10), the distributor (25) defining a housing (30) with an open end (38)； a luer housing an elastomeric partition (44) mounted adjacent to said end (38) to seal said end； said partition (44) having an outer face and being sized to receive said luer tip, said partition including a sealed groove (52) sized to receive the luer tip of the luer lock connector； the housing (30) and said partition (44) being sized to be received in a luer locking connector when the luer tip is advanced within said partition (44)； a hollow needle (60) having a tip (65) at one end and a needle dispenser (75) at its other end； the needle (60) extends through said partition (44) and the catheter (10) so that the tip (65) of the needle projects beyond the tip (15) of the catheter； wherein the needle (60) can be removed from the catheter (10) and said septum (44) after the catheter has been inserted into the blood vessel.Un sistema (5) de catéter receptor luer para conexión de fluido entre la vasculatura de un paciente y un sistema de fluido externo, teniendo el sistema de fluido un conector de bloqueo luer que incluye una punta luer, comprendiendo el sistema de catéter: un catéter (10) dimensionado para insertarse en un vaso sanguíneo, teniendo el catéter una punta (15)； un repartidor (25) de válvula receptora luer montado con el catéter (10), definiendo el repartidor (25) una carcasa (30) con un extremo (38) abierto； un luer que aloja un tabique (44) elastomérico montado adyacente a dicho extremo (38) para sellar dicho extremo； teniendo dicho tabique (44) una cara exterior y estando dimensionado para recibir dicha punta lu
