| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a stent whose hardness is properly adjusted. SOLUTION: This stent is formed of a shape memory alloy and is provided with a wire wound in a coil shape provided with a plurality of coils having a memorized winding direction, at least one part wound in the memorized winding direction and at least one part wound in the opposite winding direction. The wire wound in the coil shape is provided with a recess extended so as to partially damage the circular shape of the stent in the cross section of the circular shape and the hardness of the outer side part of at least a part of a plurality of the coils is less than the hardness of the inner side part.</p> |
