| 摘要 |
<p>A prosthesis has a cylindrical stent (102), and a cover (104) provided about the outer periphery of the stent. The cover (104) has at least two layers (108, 110) of materials, with at least one layer of material being permeable to drugs. The layers of material can define at least one chamber (106) therebetween, with a drug loaded into the at least one chamber (106). Alternatively, the drug can be loaded into the material of one or more layers.</p> |
