Role of stenting in gastrointestinal benign and malignant diseases

Table 3 Characteristics of the most commonly used colo-rectal stents

Producer	Model	Material	Delivery system and diameter	Diameters (mm) (body/flares- flanges)	Length (cm)	Type and characteristics
Boston Scientific	WallFlex®	Nitinol	TTS, 10 Fr	25 (body)-30 (proximal flange) 22 (body)-27 (proximal flange)	6, 9, 12	Uncovered
Boston Scientific	Ultraflex precision®	Nitinol	OTW, 16 Fr	25 (body)-30 (proximal flange)	5.7, 8.7, 11.7	Uncovered
Boston Scientific	Wallstent®	Stainless steel	TTS, 10 Fr	20 (22/minimal to no flare)	6, 9, 12	Uncovered
Cook Endoscopy	Evolution®	Nitinol	TTS, 10 Fr	25 (body) 30 (both ends flanged)	6, 8, 10	Uncovered
EndoChoice	BONASTENT®	Nitinol	TTS, 10 Fr and 12 Fr	22, 24, 26 (minimal flare)	6, 8, 10	Uncovered and partially covered
Ella-CS	SX-ELLA® Enterella	Nitinol	TTS, 10 Fr	22, 25 (no flare)	7.5, 8, 9, 11, 13.5	Uncovered and fully covered
Ella-CS	SX-ELLA® Enterella	Nitinol	OTW, 15 Fr and 18Fr	22, 25, 30 (no flare)	8.2, 9, 11.3, 13.5	Uncovered and fully covered
Endochoice	Bonastent® C	Nitinol	TTS, 10 Fr	22, 24, 26	6-8-10	Uncovered and fully covered
Leufen Medizintechnik	Aixstent®	Nitinol	OTW, 24 Fr	30 (body)-36 (both ends flared)	8, 10	Uncovered and partially covered
Micro-Tech	MT® Colon and rectum stent	Nitinol	TTS, 10 Fr	25 (body)-30 (both ends flanged)	8, 10	Uncovered
Micro-Tech	MT® Colon and rectum stent	Nitinol	OTW, 24 Fr	30 (body)-36 (both ends flanged)	8, 10, 12	Uncovered and partially covered
Micro-Tech	MT® Rectum stent	Nitinol	OTW, 24 Fr	20, 26, 30 (body)-24, 21, 36 (both ends flanged)	6	Fully covered
M.I.Tech	Hanarostent®	Nitinol	TTS, 10.2 Fr and 10.5 Fr	20, 22, 24 (body)-26, 28, 30 (both ends flared) (flanged and symmetric and asymmetric)	6-16	Uncovered and fully covered
M.I.Tech	Hanarostent®	Nitinol	OTW, 24 Fr	20, 22, 24 (body)-26, 28, 30 (both ends flared) (flanged and symmetric and asymmetric)	6-16	Uncovered and fully covered
M.I.Tech	Choostent®	Nitinol	OTW, 24 Fr	22, 24 (body)-30, 32 (both ends flanged) (symmetric and asymmetric)	6-16	Fully covered
S&G Biotech	EGIS® colorectal	Nitinol	TTS, 10 Fr and 12 Fr	18, 20, 22, 24, 26, 28, 30 (no flare)	6, 8, 10, 12	Uncovered and partially covered
Taewoong Medical	Niti-S® D-Type	Nitinol	TTS, 10.5 Fr	18, 20, 22, 24 (no flare)	6, 8, 10, 12, 14, 15	Uncovered
Taewoong Medical	Niti-S® D-Type	Nitinol	OTW, 16 Fr and 18 Fr	18, 20, 22, 24, 26, 28, 30 (no flare)	6, 8, 10, 12	Uncovered
Taewoong Medical	Niti-S® S-Type	Nitinol	TTS, 10.5 Fr	18, 20 (body)-24, 28 (both ends flanged)	6, 8, 10, 12	Fully covered
Taewoong Medical	Niti-S® S -Type	Nitinol	OTW, 16 Fr, 20 Fr and 22 Fr	18, 20, 22, 24, 26, 28 (body) 24, 26, 28, 30, 32, 34 (both ends flanged)	6, 8, 10, 12, 14, 15	Fully covered
Taewoong Medical	ComVi Niti-S®	Nitinol	TTS, 10.5 Fr	18, 20, 22 (no flare)	6, 8, 10	Partially covered
Taewoong Medical	ComVi Niti-S®	Nitinol	OTW, 14 Fr, 16 Fr and 18 Fr	18, 20, 22, 24, 26, 28, 30 (no flare)	6, 8, 10	Partially covered

TTS: Through the scope; OTW: Over the wire.