Table 3 Classification of antireflux metal stent
From: Evaluation of valve function in antireflux biliary metal stents
Creating method | Valve shape | Valve material | References | Advantages | Disadvantages |
|---|---|---|---|---|---|
Skirt type | Windsock type | e-polytetrafluoroethylene | Lee YN, et al. [13] | Wide inner diameter Thinner introducer | More biofilm formation Difficult positioning Possible valve deformity |
Funnel type | polytetrafluoroethylene | Hamada T, et al. [11] | |||
Attachment type | Nipple type | Silicone | Hu B, et al. [9] | Easy positioning Better maintenance of valve shape | Narrow inner diameter Thick membrane Thicker introducer Bonding and detachment |
S-shaped type | Silicone | Lee KJ, et al. [12] | |||
Wine glass type | Silicone | Kim DU, et al. [14] |