In-office Placement of the Propel Mini Sinus Implant in the Frontal Sinus Ostia

This is a prospective, randomized, single-blind, intra-patient controlled, multicenter trial with 50 subjects enrolled at up to 15 sites across the United States. Study subjects undergo implant placement on one side following in-office balloon dilation, while the contralateral side undergoes balloon dilation only and serves as a control.