Therapeutic devices · 21 CFR 872 Subpart F

Neuromuscular Tongue Muscle Stimulator for the Reduction of Snoring and Obstructive Sleep Apnea

A neuromuscular tongue muscle stimulator for the reduction of snoring and obstructive sleep apnea consists of a removable intraoral mouthpiece that uses electrodes to deliver neuromuscular stimulation to the tongue to strengthen tongue musculature to reduce snoring and obstructive sleep apnea.

FDA codeQNOClass221 CFR872.5575Pathway510(k)
Companies listing it
44 makers
Brands and models
9
510(k) clearances
32 in five years
FDA name
Neuromuscular Tongue Muscle Stimulator For The Reduction Of Snoring And Obstructive Sleep Apnea
2021: 12023: 12024: 119801990200020102020

510(k) clearances per year, 1976–2026

Companies that list QNO

4 companies currently list this device type with FDA.

CompanyCountryRoleBrands and models listedClearancesLatest
Signifier Medical Technologies LimitedUnited KingdomMakereXciteOSA · eXciteOSA control unit only pack (warranty replacement) (17000) · eXciteOSA full system - with remote control (18010) · eXciteOSA mouthpiece replacement (16000) · +332024
Freudenberg Medical Europe GmbHGermanyMakereXciteOSA——
Milli-Henry Electronics Co., Ltd.ChinaMakereXciteOSA, Neuromuscular tongue muscle stimulator for the reduction of snoring and obstructive sleep apnea——
Seacomp DisplaysMexicoMaker———

510(k) clearances

Decided510(k)DeviceApplicant
16 May 2024K240328eXciteOSA without remote control (3000); eXciteOSA with remote control (6000)Signifier Medical Technologies Limited
18 Jan 2023K223446eXciteOSA without remote control (3000); eXciteOSA with remote control (6000)Signifier Medical Technologies Limited
5 Feb 2021DEN200018eXciteOSA with remote and eXciteOSA without remoteSignifier Medical Technologies Limited

Official records: FDA product classification for QNO · 21 CFR 872.5575.

Source: FDA establishment registration & device listing, 510(k) and product classification files · FDA data as of 2 Nov 2026 · snapshot 12 Nov 2026