A prewire channel stent (1) has a structure that includes a balloon (2) and a metallic mesh material (3) outside the balloon, a central passage (5) inside the balloon, and a second passage (6) disposed between the metallic mesh material and the balloon. The second passage (6) allows a second guidewire (30) to be received therein, and the use of the second guidewire thereby avoids the problem of wire exchange and stent dislodgement in known devices.
