The astral device was returned to resmed for an investigation.Review of the device data logs could not confirm the reported complaint but did reveal an error message (sf219) related to a pneumatic block watchdog alarm that did not occur during ventilation.Based on all available evidence and complaint investigations of a similar nature, the investigation determined that the reported complaint was due to a software issue.Resmed's risk analysis for this failure mode concludes that the risk is acceptable.Resmed reference#: (b)(4).
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