Table 4.

Stent materials and commercial names^a

Material	Class	Chemical composition	Manufacturer and commercial name
Silicone	Silicone	Condensation polymer comprising chains of alternating silicon and oxygen atoms [12]	Cook Black silicone Coloplast ImaJin Hydro Coloplast (Porges S.A.) silicone
Silitek	Silicone + polyester	Proprietary modified silicone based polyester block copolymer [10], [11], [12], [31]	Surgitek Silitek
C-Flex	Silicone + polyolefin	Silicone-modified styrene/ethylene/butylene thermoplastic block copolymer [12], [31]	Cook C-Flex Van-Tec “Soft”
Percuflex	Polyolefin	Proprietary thermoplastic olefinic block copolymer [10], [11], [31]	Boston (Microvasive) – Percuflex – Percuflex Plus (“firm” Percuflex + Hydroplusb) – Contour (“soft” Percuflex + Hydroplusb)
Polyurethane (standard)	Polyurethane	Linear polymer of urethane units with a backbone that contains carbamate groups (—NHCO2). The links are produced via chemical reaction between a di-isocyanate and a polyol [11]	Cook polyurethane Rüsch (Teleflex) polyurethane
Sof-Flex	Polyurethane	Proprietary modified polyurethane-based polymer with hydrogel [11]	Cook Sof-Flex
Tecoflex	Polyurethane	Modified polyurethane-based aliphatic thermoplastic; product of the reaction between methylene-bis(cyclohexyl)-di-isocyanate, poly(tetramethylene ether glycol), and 1,4-butanediol [10], [11], [31]	Surgitek Classic
Carbothane	Polyurethane	Proprietary modified polyurethane-based polymer	Amecath Carbothane
Pellethane	Polyurethane + fluoropolymer	Proprietary modified polyurethane-based mixture of PTFE and proprietary materials [10]	Bard Inlay (Pellethane with pHreeCoatc) [10]
Endo-Sof	Proprietary	Proprietary compound	Cook Endo-Sof
Vertex	Proprietary	Proprietary compound	Applied Medical Vertex
Resonance	Metal	Nickel‐cobalt‐chromium‐molybdenum alloy [10]	Cook Resonance
Triclosan	Antimicrobial	Triclosan	Triumph triclosan-eluting stent
Silver sulfadiazine	Antimicrobial	Silver sulfadiazine	Amecath Carbothane with silver sulfadiazine

PTFE = polytetrafluoroethylene.

^aLimited to the materials and commercial names for stents used in the studies included in the review.

^bProprietary hydrogel by Boston Scientific.

^cProprietary hydrogel with pH-stabilizing capabilities.