| 摘要 |
The present invention provides a tubular stent including a longitudinal cylindrical base structure having a first end portion, a second end portion, a mid-portion interposed between the first and second end portions. A plurality of linear strut members connect the mid-portion to the first and second end portions, where the first and second end portions has a first pattern and the mid portion has a second pattern different from the first pattern. The second pattern includes a plurality of articulations. Reservoirs are disposed on at least one of the first end portion, the second end portions, or the mid-portion, where the reservoirs include a pharmaceutical agent therein.
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