The invention discloses a
stent conveying
system which comprises a proximal operating
handle, a locking screw, a tightening
tail sleeve, a conveying steel cable, a densely wound spring, a front-end enclosing ring, an instrument connecting bolt head, a
stent system and a
catheter. A center hole is formed in the proximal operating
handle, locking threaded holes are laterally formed in the proximal operating
handle, the conveying steel cable is inserted into the center hole and is fixed by the aid of the locking screw, two ends of the conveying steel cable are tightened by the tightening
tail sleeve and the front-end enclosing ring, the conveying steel cable penetrates the densely wound spring, is fixed to the densely wound spring, further extends into an inner hole in the
tail end of the instrument connecting bolt head and is integrally fixed to the inner hole, an inner nut and an end of a
stent are fixed to each other to form the stent
system, and the inner nut in the stent system and a bolt at the front end of the instrument connecting bolt head are screwed with each other; the proximal operating handle can be pushed in the front-back direction and can simultaneously drive the stent to relatively move in the
catheter. The stent conveying system has the advantages that the stent conveying system is simple in particular structure, convenient to operate, accurate in implantation and excellent in development characteristics, and tracking and positioning judging can be facilitated.