| 摘要 |
A stent may comprise a helically wound ribbon of material. The stent may comprise a plurality of ribbon turns about a longitudinal axis of the stent. Upon expansion of the stent, the diameter of the stent may increase and the number of ribbon turns may decrease. Upon expansion of the stent, the width of the ribbon may increase. The length of the stent may be the same in unexpanded and expanded states.
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