| 摘要 |
A stent can comprise a first elongate member and a second elongate member. The first elongate member can be configured to extend within a body lumen of a subject. The second elongate member can have (i) a first end portion connected to the first elongate member and (ii) a second end portion. An injection lumen can extend within the second elongate member for injecting a substance into at least a part of the body lumen. |
