There are two kinds of biliary stents on the market: plastic and metal. Plastic stents are made of polyethylene, polyurethane or tephlon, with sizes that vary between 7 Fr and 11 Fr. Self-expandable metallic stents, covered or uncovered, are made of nitinol with sizes from 24 Fr to 30 Fr.
Los stent biliares disponibles en el medio actualmente son de acuerdo a su composición: plásticos polietileno, poliuretano o teflón con tamaños que oscilan de 7 a 11 FR o metálicos nitinol autoexpandibles cubiertos o descubiertos con 24-30 FR.