| abstract |
A stent (1) has a plurality of wavy annular members (2a, 2b) eachnformed of a narrow wavy element and arranged in the axial direction thereof;nand a plurality of connection portions (4) each connecting the adjacent wavynannular members (2a, 2b) to each other axially. The connection portion (4)nlocated in the vicinity of the axial center of the stent (1) is weaker than othernconstituent parts of the stent (1) and can be broken. That is, an inflatingnballoon catheter can be inserted into the stent (1) such that the inflating balloonncatheter penetrates through a side wall of the stent (1) from its interior after thenstent (1) dilates radially. The connection portion (4) can be broken by inflationnof the balloon of the inflating balloon catheter. |