The manufacturer was contacted in reference to the voluntary field safety notice / recall notification related to the sound abatement foam in certain cpap/ bipap, and mechanical ventilator devices.The manufacturer received information alleging upper respiratory infection, sinus issues, vicious cough, and hoarse voice and humming noice coming from machine.There is no allegation of serious or permanent harm or injury.No medical intervention was required by the patient.The device was returned to the manufacturer's product investigation laboratory for investigation.An external and internal visual inspection of device were completed by the manufacturer and found no evidence of sound abatement foam degradation.Device was recertified per fc:16-700-623.Upgraded software/ cleared error log and unit passed final testing.At this time, no further investigation can be performed.If any additional information is received, a follow up report will be filed.
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