MINNEAPOLIS--(BUSINESS WIRE)--Entellus Medical, a Minnesota-based medical technology company, today announced the launch of its FinESS Sinus Treatment, a less-invasive and effective treatment for chronic rhinosinusitis (CRS), during the American Academy of Otolaryngology Annual Meeting in Chicago September 21-24. Results of the BREATHE I clinical study validating the FinESS treatment were presented to members of the American Rhinologic Society (ARS) during its annual meeting in Chicago on September 20.