| 摘要 |
A bioabsorbable implantable endoprosthesis (50) having elongate elements (20,30,40) including hollow (22), cavity (32) or porous (42) portions adapte d toaccumulate by-product from the degradation of the bi oabsorbable material and shorten the diffusion distance (d1) for water absorption and thereby relatively incr ease the degradation of the structure. |
