Voice prosthesis device

A voice prosthesis device includes a barrel defining a passageway, a tracheal flange adjacent a tracheal end of the barrel and an esophageal flange adjacent an esophageal end of the barrel. The passageway includes a first stop extending inwardly from a sidewall of the passageway between the tracheal and esophageal ends and a plurality of second stops extending inwardly from the sidewall of the passageway between the first stop and the esophageal end of the passageway. A valve mechanism is located between the first and second stops and permits flow through the passageway from the tracheal end and impedes flow through the passageway from the esophageal end.