Stent for benign, annular stenosis

The hourglass-shaped ST stents were developed in collaboration with Prof. Vergnon (University Hospital Saint Etienne, France).
They are particularly suited to complex benign tracheal stenoses, such as post-intubation or post-tracheostomy stenoses. The diameters of the proximal and distal ends correspond to the diameter of the healthy trachea. The middle part is narrower to reduce the risk of injuring the stenotic section of the trachea, but wide enough to ensure a sufficient air flow.

• Wall thickness: 1.5 mm
• Rows of studs: 4

_{Vergnon JM, Costes F, Polio JC; Efficacy and Tolerance of a New Silicone Stent for the Treatment of Benign Tracheal Stenosis: preliminary results; Chest. 2000; 118(2): 422-426}