Patent ID: 7815669

Claim:
A stent delivery device comprising: a distal-side tube having a guide wire lumen; a proximal-side tube whose distal portion is fixed to a proximal portion of said distal-side tube; a cylindrical member which encloses a distal side of said distal-side tube and is slidable toward a proximal end of said distal-side tube; a stent housed in said cylindrical member; and a pulling wire which extends inside said proximal-side tube, with one end portion thereof fixed to said cylindrical member, wherein said distal-side tube has a proximal-side opening which is open at said proximal side of said distal-side tube and communicates with said guide wire lumen; and a stent-locking portion which is disposed at said distal side of said distal-side tube and contacts a proximal end of said stent, thus preventing said stent from moving to said proximal side of said stent delivery device; and said stent is formed approximately cylindrically, housed in said cylindrical member, with said stent being compressed in an axial direction thereof, and expands outward and returns to a configuration before said stent is compressed, when said stent is implanted in an organism; said stent delivery device further comprising an operation portion, disposed at a proximal portion of said proximal-side tube, which has a pulling wire winding mechanism for winding said pulling wire and moving said cylindrical member toward a proximal side of said stent delivery device.