| abstract |
[PROBLEMS] To safely place an inner wall of a tubular organ such as a blood vessel in a lumen without damaging the inner wall of the tubular organ, and even after being placed in a tubular organ such as a blood vessel for a certain period of time. Provided are a stent and a stent graft that can be safely stored in a catheter and recovered outside the body without damaging the inner wall, and that there is no risk of detachment of the engaging portion during the recovery operation. In a stent 10 in which one or a plurality of filaments are spirally twisted and formed into a braided structure, the stent 10 has a cylindrical body whose diameter is expanded in a normal state in which the diameter can be expanded and contracted. A portion 1, a tail portion 2 that is provided following the main body portion 1 and is tapered to expand and contract in a normal state and is tapered, and a filament bundle 3 provided following the tail portion 2, And an engaging portion 4 formed by bending or bending the filament bundle 3 provided subsequent to the rear end of the filament bundle 3. [Selection] Figure 1 |