The manufacturer was initially 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 previously reported an allegation of an issue related to a bipap device's sound abatement foam.The patient alleged having residue resolving in the machine and particles in airway from the device.Patient also alleges having trouble breathing in from the residue.There is no allegation of serious or permanent harm or injury.The device was returned to the manufacturer's product investigation laboratory for investigation.Observed an unknown contaminant on the sd module flip doors and top enclosure.An unknown dust contaminant was observed on the rear panel, bottom enclosure, blower, blower seal, and blower box.Evidence of liquid ingress was observed to the blower and blower box.A keratin-like substance was observed on the blower box outlet.Evidence of sound abatement foam degradation/breakdown was not observed.The device's downloaded event log was reviewed by the manufacturer and found no erorrs.The manufacturer concludes unable to directly address the symptoms outlined in the complaint.Confirmed no presence of degraded sound abatement foam.In this report, section d9, g3, h3, h6 has been updated or corrected.
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