J. Mater. Sci. Technol. ›› 2019, Vol. 35 ›› Issue (11): 2682-2692.DOI: 10.1016/j.jmst.2019.07.007
• Orginal Article • Previous Articles Next Articles
Zhou Xiaochena, Yang Fanb, Gong Xiaoyanc, Zhao Mingd, Zheng Yufengae*(), Sun Zhilie**()
Received:
2018-12-29
Revised:
2019-04-28
Accepted:
2019-05-26
Online:
2019-11-05
Published:
2019-10-21
Contact:
Zheng Yufeng,Sun Zhili
About author:
1The authors equally contributed to this work.
Zhou Xiaochen, Yang Fan, Gong Xiaoyan, Zhao Ming, Zheng Yufeng, Sun Zhili. Development of new endovascular stent-graft system for type B thoracic aortic dissection with finite element analysis and experimental verification[J]. J. Mater. Sci. Technol., 2019, 35(11): 2682-2692.
Nominal diameter (mm) | Inner diameter of sheath (mm) | Inner diameter of aorta (mm) | Stent graft oversize |
---|---|---|---|
20 | 4.8 | 16 | 25% |
22 | 4.8 | 18 | 22% |
24 | 5.4 | 20 | 20% |
26 | 5.4 | 22 | 18% |
28 | 5.4 | 24 | 17% |
30 | 6.1 | 26 | 15% |
32 | 6.1 | 28 | 14% |
34 | 6.1 | 30 | 13% |
36 | 6.1 | 32 | 13% |
38 | 6.7 | 34 | 12% |
40 | 6.7 | 36 | 11% |
42 | 7.4 | 38 | 11% |
44 | 7.4 | 40 | 10% |
46 | 7.4 | 42 | 10% |
Table 1 The correspondence among stent, sheath and aorta.
Nominal diameter (mm) | Inner diameter of sheath (mm) | Inner diameter of aorta (mm) | Stent graft oversize |
---|---|---|---|
20 | 4.8 | 16 | 25% |
22 | 4.8 | 18 | 22% |
24 | 5.4 | 20 | 20% |
26 | 5.4 | 22 | 18% |
28 | 5.4 | 24 | 17% |
30 | 6.1 | 26 | 15% |
32 | 6.1 | 28 | 14% |
34 | 6.1 | 30 | 13% |
36 | 6.1 | 32 | 13% |
38 | 6.7 | 34 | 12% |
40 | 6.7 | 36 | 11% |
42 | 7.4 | 38 | 11% |
44 | 7.4 | 40 | 10% |
46 | 7.4 | 42 | 10% |
Sample | Nominal diameter (mm) | |||||
---|---|---|---|---|---|---|
20, 22 | 24 | 26, 28 | 30, 32, 34, 36 | 38, 40 | 42, 44, 46 | |
X-50-0.33 | 10 | 10 | 10 | 12 | 12 | 16 |
X-75-0.33 | 10 | 10 | 10 | 12 | 12 | 16 |
X-75-0.38 | 10 | 10 | 10 | 12 | 12 | 16 |
X-150-0.33 | 5 | 5 | 5 | 6 | 6 | 8 |
X-150-0.43 | 5 | 5 | 5 | 6 | 6 | 8 |
X-7550-0.33 | 8 | 10 | 10 | 12 | - | - |
X-7550-0.38 | 10 | 10 | 10 | 12 | 12 | 16 |
Table 2 Peak numbers of all the stents.
Sample | Nominal diameter (mm) | |||||
---|---|---|---|---|---|---|
20, 22 | 24 | 26, 28 | 30, 32, 34, 36 | 38, 40 | 42, 44, 46 | |
X-50-0.33 | 10 | 10 | 10 | 12 | 12 | 16 |
X-75-0.33 | 10 | 10 | 10 | 12 | 12 | 16 |
X-75-0.38 | 10 | 10 | 10 | 12 | 12 | 16 |
X-150-0.33 | 5 | 5 | 5 | 6 | 6 | 8 |
X-150-0.43 | 5 | 5 | 5 | 6 | 6 | 8 |
X-7550-0.33 | 8 | 10 | 10 | 12 | - | - |
X-7550-0.38 | 10 | 10 | 10 | 12 | 12 | 16 |
Fig. 11. Surface topography of four sets of parallel samples under an optical measuring instrument of 38 times multiplication after 400 million cycles fatigue tests.
Fig. 13. Three-dimensional CT blood flow results of a patient’s thoracic aorta: (a) before surgery; (b) 30 days after; (c) 180 days after; (d) 365 days after.
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