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Manufacturer's ref# (b)(4).The clinical investigation concluded: it was reported that the user had a reaction to a closed dome.The symptoms of the reaction are redness and irritation in the ear canal.The reaction arose within a week of usage and is present on both ears.The issue has not happened before.There were no chemicals used.User sought medical attention with their md, who prescribed steroids for the reaction, and said that the domes were improperly fitted.There is no history of allergies.Clinical conclusion is that it cannot be ruled out that the hearing aids may have contributed to this reaction.Poor physical fit of hearing aids is identified in the risk analysis and mitigated to an acceptable level through modification of the hearing aid casing or a remake of the hearing aid.The user guide instructs the hearing aid to contact the hearing care professional if skin irritation occurs.There are no new clinical aspects (e.G.Unforeseen use or clinical conditions) discovered from this event.Therefore, it is concluded that the current clinical evaluation and risk/benefit conclusions herein are sufficient.Domes are made of soft silicone material.As domes are designed to have skin contact, the material used is biocompatible and a biological evaluated.Hearing aids are typically being worn many hours per day and it is not uncommon that the skin contact can cause minor skin irritation.However, many users get accustomed to the material and the itching or irritation.In rare cases, an allergic reaction to the domes can develop.In some cases, treatment with topical steroid and/or antibiotics will be necessary to stop the skin irritation.A temporary pause in the hearing aid use is also recommended to help the healing process.The user guide includes a caution to consult the hearing care professional if irritation should occur.There are no new clinical aspects (e.G.Unforeseen use or clinical conditions) discovered from this event.Therefore, it is concluded that the current clinical evaluation and risk/benefit conclusions herein are sufficient.Risk register conclusion: the residual risk after the risk control measure(s) is acceptable.No new hazardous situations revealed and no need to update the risk register.Manufacturer's investigation is final.This is a final report.
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