2.1
The XprESS multi‑sinus dilation system (XprESS, Entellus Medical) is a sterile, single‑use device for treating chronic sinusitis. The system comprises a balloon‑tipped device with a reshapeable end that is inserted through the nose into the maxillary, frontal or sphenoidal sinuses. XprESS also includes an inflation syringe, bending tool and 2 extension lines to provide irrigation. The balloon is manipulated into the bony sinus outflow tracts (ostia) and inflated with saline. This reshapes and opens the ostia by displacing adjacent bone and paranasal sinus structures allowing the sinuses to drain more effectively