International Journal of Gastrointestinal Intervention

Table. 1. Table 1

Stents Tested and Expansion Force Averaged over Three Compression Cycles

Test-No.	Make	Model	Weave	Cover	Cover type	Diameter (mm)	Length (mm)	Force (N)
6	Boston	Wallstent	Braided	Bare	-	22	90	5.6
5	Boston	Wallflex	Braided	Bare	-	25	60	5.8
9	Cook	Evolution	Braided	Bare	-	25	100	7.9
14	MI Tech	CNZ	Knitted	Bare	-	24	60	8.7
23	Ella	Enterella	Braided	Bare	-	25	112	13.8
12	MI Tech	TLC	Double knitted	Part	Membrane	24	80	14.9
13	MI Tech	NCS	Knitted	Bare	-	24	80	15.4
17	BCM	Hilzo bone	Knitted	Part	Membrane	20	120	16.9
19	Micro-Tech	Colon	Braided	Bare	-	30	80	17.2
8	S&G Biotech	Egis covered	Double knitted	Part	Membrane	24	110	17.5
7	S&G Biotech	Egis bare	Double knitted	Bare	-	24	110	20.5
16	BCM	Hilzo straight	Double knitted	Bare	-	24	120	20.9
18	BCM	Hilzo bone	Knitted	Fully	Membrane	20	120	24.4
21	Micro-Tech	Rectum	Braided	Bare	-	30	80	31.8
15	MI Tech	HRC (flare)	Knitted	Part	Dipped	20	100	32.9
4	TaeWoong	ComVi Flare	Double knitted	Part	Membrane	26	95	33.3
2	TaeWoong	D-stent	Knitted	Bare	-	28	90	33.4
11	MI Tech	CCBA	Braided	Fully	Dipped	20	100	35.1
3	TaeWoong	ComVi	Double knitted	Part	Membrane	26	100	45.9
25	Ella	BD	Braided	Bare	-	26	60	53.3
10	MI Tech	CCI	Braided*	Fully	Dipped	24	100	61.7
24	Ella	Enterella	Braided	Fully	Dipped	30	135	84.4
1	TaeWoong	S-stent	Braided	Bare	-	28	80	85.1
22	Micro-Tech	Rectum	Braided	Part	Dipped	30	80	104.9
20	Micro-Tech	Colon	Braided	Fully	Dipped	30	80	130.8
Reference esophageal stents
29O	S&G Biotech	Egis	Knitted	Fully	Membrane	20	110	39.3
28O	Ella	HV+	Braided	Fully	Dipped	18	110	133.8

Numbering is in order of test performed, stents are listed in ascending order of radial force.

^*CCI stent classified as ‘braided’ due to mechanical behavior as a consequence of the silicone covering, despite a knitted underlying wire construction.

Int J Gastrointest Interv 2020;9:99~105 https://doi.org/10.18528/ijgii200005