Use of fully covered self-expanding metal stents in benign biliary diseases

Table 1 Commercially available biliary self-expanding metal stents

Manufacterer	Model	Material	Deployed diameters (mm) and lengths (cm)
Boston scientific	Fully covered Wallflex	Platinol covered with permalume	8 or 10 mm
			4, 6, 8 cm
Taewoong Medical	S-Type fully covered	Nitinol covered with silicone	6, 8 or 10 mm
			4-15 cm
M.I. Tech	Hanarostent covered, with lasso or with anchoring flaps	Nitinol covered with silicone	10 mm
			4-10 cm
Standard SciTech	Biliary covered Bonastent with flared ends	Nitinol covered with silicone	10 mm
			4-10 cm
Ella-CS	Nitinella plus	Nitinol covered with silicone	8 or 10 mm
			4-6-8-10 cm
ConMed	Gore viabil with or without holes and with fins	Nitinol covered with ePTFE/FEP (gore tex)	8 or 10 mm
			4-6-8-10 cm