A device for repair of a heart valve leaflet comprising: an elongated catheter assembly having a proximal end and a distal end; a tip at the distal end of the catheter assembly; a capture mechanism having a first free end and a second free end and being rotatably coupled to a distal end of the tip; a plication mechanism having an open configuration and a closed configuration, the plication mechanism extending between the first free end and the second free end of the capture mechanism when the capture mechanism is in a closed configuration and the plication mechanism is in the open configuration; and a clip housing at a proximal end of the tip configured to hold a clip therein, characterized by an actuator having a first through-hole and a second through-hole, wherein the first free end of the capture mechanism is at least partially housed in the first through-hole and the second free end of the capture mechanism is at least partially housed in the second through-hole, the through-holes (332,333) providing a ramped surface, where movement of the actuator with respect to the first and second free ends (221,222) of the capture mechanism causes rotation of the capture mechanism between an open configuration and the closed configuration to capture the leaflet, the plication mechanism being configured to fold the captured leaflet, and the clip housing configured to deploy the clip onto the folded captured leaflet. an elongated catheter assembly having a proximal end and a distal end; a tip at the distal end of the catheter assembly; a capture mechanism having a first free end and a second free end and being rotatably coupled to a distal end of the tip; a plication mechanism having an open configuration and a closed configuration, the plication mechanism extending between the first free end and the second free end of the capture mechanism when the capture mechanism is in a closed configuration and the plication mechanism is in the open configuration; and a clip housing at a proximal end of the tip configured to hold a clip therein, a proximal end and a distal end; a tip at the distal end of the catheter assembly; a capture mechanism having a first free end and a second free end and being rotatably coupled to a distal end of the tip; a plication mechanism having an open configuration and a closed configuration, the plication mechanism extending between the first free end and the second free end of the capture mechanism when the capture mechanism is in a closed configuration and the plication mechanism is in the open configuration; and a clip housing at a proximal end of the tip configured to hold a clip therein, characterized by an actuator having a first through-hole and a second through-hole, wherein the first free end of the capture mechanism is at least partially housed in the first through-hole and the second free end of the capture mechanism is at least partially housed in the second through-hole, the through-holes (332,333) providing a ramped surface, where movement of the actuator with respect to the first and second free ends (221,222) of the capture mechanism causes rotation of the capture mechanism between an open configuration and the closed configuration to capture the leaflet, the plication mechanism being configured to fold the captured leaflet, and the clip housing configured to deploy the clip onto the folded captured leaflet.