A system (100, 1000) to provide a self-expanding implant into a body lumen, such that the system comprises: a tubular catheter having proximal and distal ends and comprising an outer member interlock (500, 500 ', 500', 1005) disposed slidably around an inner member interlock (400) such that a side wall of the outer member interlock defines a port rapid exchange (RX) (110 ); so that the self-expanding implant (300, 300 ') is arranged in intermediate position members interlock inner and outer (400, 500, 500', 500 ', 1005); an internal cavity (200) for guidewire, which extends at least partially through each of the inner member interlock (400) and outer member interlock (500, 500 ', 500', 1005) , such that the internal cavity (200) for guidewire is configured to align with the port RX (110); a cable pusher (118); and an alignment mechanism, such that the inner member interlock has a portion interlock (402) and a proximal end of implant (300, 300 ') has a tab portion interlock (302), configured to engage the portion interlock (402) in order to maintain rotational alignment between the implant (300, 300 ') and the inner member interlock (400), such that the alignment mechanism comprises a contact surface disposed about an inner circumference of the outer member interlock (500, 500 ', 500', 1005), the inner circumference being in frictional contact with at least a portion of the implant (300, 300 ') to maintain rotational alignment of the outer member interlock (500, 500 '. 500' ', 1005) relative to the inner member interlock (400), whereby alignment between internal cavity (200) is maintained for guide wire and RX port (110) And such that the alignment mechanism further comprises an extension (202) lumen for guide wire coupled to the inner member interlock (400) and communicating with the portion of the internal cavity (200 ) for guidewire that extends at least partially through the inner member interlock (400).Un sistema (100, 1000) para aportar un implante autoexpansiv