a state illustrated in fig2 a a state in which the portion of the stent 6 is exposed to the outside of the catheter 7 the stent 6 is moved towards the proximal end of the catheter 7 due to the frictional force between the stent 6 and the second external coil body 14 and is retrieved into the catheter 7 see fig2 b in the above guide wire 1 since the stent 6 not only can be pushed out with the first external coil body 12 but also can be drawn back with the second external coil body 14 fine adjustment of the placing position of the stent 6 can be performed furthermore in the guide wire 1 the first external coil body 12 that pushes the stent 6 and the second external coil body 14 that draws the stent 6 back are each configured by a coil accordingly the flexibility of the guide wire 1 can be maintained despite including these members for pushing out and drawing in the stent 6 this facilitates delivery of the stent 6 to an end of a tortuous blood vessel fig3 is an explanatory drawing illustrating a configuration of a guide wire 2 of the disclosed embodiments the guide wire 2 is different from the guide wire.