Comparative Study of the Effect of Structural Parameters on the Flexibility of Endovascular Stent Grafts

Table 6

Bending and spring-back forces of commercial stent grafts.

Stent grafts	Diameter (mm)	Bending arm length (mm)	Stent spacing (mm)	Stent height (mm)	Ratio of stent spacing to stent height	Force at 50° (cN)		Force per bending arm length at 50° (cN·mm^−1)
						Bending	Spring-back	Bending	Spring-back
Valiant	32	34	2.5	15.5	0.16	140.04	59.98	4.12	1.76
Zenith TX2 2PT	40	53	11.0	16.0	0.69	59.98	10.34	1.13	0.19