The manufacturer previously reported an allegation of a thermal event to an everflo international oxygen concentrator.The patient reported that fire had come out of the unit, and it smelled burnt.There was no report of serious patient harm.There was no report of medical intervention.The device was evaluated by the product investigation lab.During evaluation, no evidence of a thermal event could be confirmed.The unit was returned with significant physical damage, specifically to the power cord due to customer abuse.It was determined the unit had been repeatedly constrained against a flat surface, and the continuous bending has fatigued the wires to the point of failure, rendering the unit unable to be placed into service/use.Any perceived customer allegation of a thermal event is concluded as being indicative of the ac power cord conductors shorting to one another, and immediately creating an open condition.Additionally, letter was sent to the customer to make them aware of investigative findings.
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