SELF-EXPANDING STENT DELIVERY SYSTEM

To provide a self-expanding stent delivery system configured so that pull-wires can be moved to the distal end side and the proximal end side, thereby further improving the ease of operation of the self-expanding stent delivery system. An operating section 100 has: a holding section 200 for holding pull-wires 50a, 50b so that the pull-wires 50a, 50b can be moved to the distal end side and the proximal end side; and a switching section 300 capable of switching between a state in which the movement of the pull-wires 50a, 50b held by the holding section to the distal end side is limited and a state in which the limitation is released. 提供能够使牵引丝向前端侧及基端侧移动且能够进步提高操作性的自扩张型支架输送系统。操作部(100)具有：保持部(200)，其将牵引丝(50a、50b)保持为能够向前端侧及基端侧移动的状态；和切换部(300)，其能够对限制被保持部保持的牵引丝向前端侧的移动和所述限制的解除进行切换。