Abstract: A stent graft includes a tubular member, a plurality of stent rings, and an uncovered section. The tubular member extends between a proximal end and a distal end. The plurality of stent rings extend in a ring shape while alternatingly bending toward the proximal end side and toward the distal end side. The plurality of stent rings include a plurality of fluctuating rings and a small fixed ring. The plurality of fluctuating rings have a first region in which the amplitude is a first value and a second region in which the amplitude is a second value smaller than the first value. The small fixed ring exhibits a maximum amplitude which is a third value which is smaller than the first value. The uncovered section extends while alternatingly bending toward a base end side and toward a tip end side.

Abstract: A stent graft includes a tubular member and a plurality of stent rings. The plurality of stent rings are alternately bent toward a central end side and toward a peripheral end side. The plurality of stent rings include a plurality of fluctuating rings and a small fixed ring. The plurality of fluctuating rings are arranged in order of a first fluctuating ring, a second fluctuating ring . . . , from the proximal end side toward the distal end side. A first distance that is a maximum value of a distance between a center position of the first fluctuating ring and a center position of the second fluctuating ring is greater than any nth distance that is a maximum value of a distance between a center position of an nth fluctuating ring and a center position of an n+1th fluctuating ring.