A catheter device having a shaft that extends from a proximal end to a distalend to carry on its distal end a self- expanding implant for intraluminaladvance on a guidewire and delivery of the implant to a stenting site byproximal withdrawal of a sheath that lies radially outside the implant in thecatheter, the catheter including a first shaft element to pull the sheathproximally and a second shaft element to push the implant distally to preventthe implant moving proximally with the sheath when the sheath is pulledproximally, wherein i) the shaft defines a flushing lumen ii) the shaftdefines a proximal guidewire exit port that is distal of the proximal end ofthe shaft, for rapid exchange of the catheter with respect to the guidewireiii) the first shaft element is a pull wire iv) the second shaft element is apusher tube.
