The manufacturer received information alleging the patient had a lung infection while using an everflo oxygen concentrator.The patient stated the durable medical equipment (dme) supplier, (b)(4), did not instruct the patient to change the nasal cannula and humidifier and has been using the same equipment for 3 years.The nasal canula was not manufactured or placed into distribution by respironics and the manufacturer of the cannula is unknown to the manufacturer.The patient reported to the manufacturer of the concentrator that he has been to the emergency room and has been kept overnight for observation several times because of the lung infection.He was prescribed antibiotics and steroids to treat the infection.The dme has been made aware of the complaint, so they may notify the cannula manufacturer of this event.The manufacturer concludes that the alleged event is caused by user error.There was no allegation of device malfunction.
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