Kake Educational Institution Okayama University Of Science;JAPAN Medical Device Technology Co., Ltd.
发明人:
申请号：
EP18748044.7
公开号：
EP3578142A1
申请日:
2018.01.29
申请国别(地区):
EP
年份:
2019
代理人:
摘要：
To provide a bioabsorbable stent including: a first tubular unit containing a plurality of cells coupled to each other, each of the cells formed from substantially linear parts and a substantially circular arc part and having a substantially U shape which opens to one end in the axial direction of the stent； and a second tubular unit having the same shape as that of the first tubular unit, the second tubular unit containing a plurality of cells each of which has a substantially U shape which opens to a direction opposite to the opening direction of the opposing first cell. The first tubular unit and the second tubular unit are alternately arranged in sequence to surround a central axis of the stent. Coupling members couple substantially linear parts in some of the opposing cells in the respective neighboring tubular units. A ratio of a width (wT) of the cell line at the top of the circular arc part to a width (wS) of the cell line at the substantially linear part, a ratio of a cell height (h) to a cell width (w), and a maximum principal stress (σmax) at the time of expansion are selected appropriately.
