| 摘要 |
The invention relates to a stent 30 formed of a plurality of stent rings 24, each of which rings 24 is formed of a series of sprung sections (10 figure 1) coupled to one another by flexible couplings (22 figure 1). The flexible couplings (22 figure 1) may be made of a biodegradable material. The flexible couplings (22 figure 1) enable the stent 30 to expand to a smaller uncompressed diameter and then to expand further to a larger uncompressed diameter, by virtue of the flexible couplings (22 figure 1) which allow the sprung sections to move from a partially overlapping configuration to a radially spaced configuration. The stent 30 can expand with expansion of a vessel, for example in a growing patient. |
