| 摘要 |
A stent ( 1 ) formed into a generally or substantially tubular body and expandable radially outward from inside of the tubular body, wherein cells ( 6 ) are connected vertically and so arranged as to surround the central axis (C 1 ) of the stent ( 1 ) and thereby to form annular units ( 4 ), the annular units ( 4 ) are extended along the axis of the stent ( 1 ), adjacent annular units ( 4 ) are connected at least at one portion by a connecting part ( 5 ), each of the cells ( 6 ) has at least one bent portion, and the angle of the bent portion after expansion of the tubular body until the diameter becomes 2.5 mm is larger than 30°. The stent ensures a high flexibility and radial support force, enhances the blood vessel expandability, and suppresses the foreshortening phenomenon and the flare phenomenon.
|
