Patent ID: 8192483

Claim:
A stent for placement in a human body, characterized in that: the stent is a long tube-shaped body having both end regions; the long tube-shaped body is expandable in the radial direction from a compressed first diameter to a second expanded diameter; the stent has a first end section, a second end section, a third central section, a fourth section between the first end and the third central sections, and a fifth section between the second end and third central sections; each of the first through the fifth sections extends continuously around a circumferential direction of the stent and the first through the fifth sections connect to one another along an axial direction of the stent; a rigidity of the fourth section is smaller than that of the first end section and that of the third central section; a rigidity of the fifth section is smaller than that of the second end section and that of the third central section; each of the first through fifth sections are formed with almost wave-formed elements; a number of the almost wave-formed elements per circle in the fourth section is larger than that in the first end section and that in the third central section; and a number of the almost wave-formed elements per circle in the fifth section is larger than that in the second end section and that in the third central section.