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 an issue related to a dreamstation bipap st30 device's sound abatement foam.The manufacturer received information alleging throat is very dry and inflamed, nasal/throat irritation or soreness.There was no report of serious or permanent patient harm or injury.There was no medical intervention required by the patient.The device was returned to the manufacturer's product investigation laboratory for investigation.An internal visual inspection of the device was completed by the manufacturer and found evidence of unknown dust contaminant on the rear enclosure, bottom enclosure, blower, and blower seal, keratin contamination on the blower box.The manufacturer found no evidence of sound abatement foam degradation/breakdown.The device's downloaded event log was reviewed by the manufacturer and found no errors logged.The manufacturer concludes the contaminates found were consistent with unknown dust, keratin.The manufacturer confirmed there was no evidence of sound abatement foam degradation/breakdown.
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