| 摘要 |
A stent 1 comprises a sheet 2 of biocompatible material having a tubular shape and folded with a pattern of folds allowing the sheet 2 to be collapsed for deployment. The pattern of folds comprises a unit cell repeated over the sheet 2 . A variety of different unit cells 3 are described. The pattern of folds may progress helically around the tubular shape of the sheet 2 which assists in implantation by synchronising deployment. The stent 1 further comprises a frame extending around the tubular shape of the sheet 2 and reinforcing the sheet 2 . The frame comprises a plurality of elongate members arranged to fold relative to each other in conformity with the sheet 2 to allow the frame to be collapsed with the sheet 2 for deployment of the stent 1 . The stent 1 prevents tissue in-growth because it is formed of a continuous sheet 2. |
