FCI S A S FCI 20 22 S1.1903u Lacrimal tube

A sterile, implantable, single-lumen tube intended to provide tear drainage from the front surface of the eye, typically into the nasal cavity or a paranasal sinus, as a drainage treatment for lacrimal canalicular pathologies in functional or obstructive epiphora; it may also be intended to facilitate saline solution irrigation to a paranasal sinus (e.g., ethmoid sinus) to manage chronic rhinosinusitis. Also referred to as a lacrimal stent, the device may be implanted after surgery to dilate or create a surgical passage [e.g., dacryocystostomy/dacryocystorhinostomy (DCR)], and is made of glass or synthetic polymer material(s) [e.g., silicone].