Ps287009.Method: the complaint mr850 respiratory humidifier was returned to our fisher & paykel healthcare service centre in (b)(4) where it was inspected and performance checked by a trained service engineer as per the product technical manual.Multiple attempts were made to contact the hospital for further information with regards to the reported event, however no further information was received.Our investigation is accordingly based on the service report from the service centre, our knowledge of the product and information reported by the hospital.Results: no fault was found with the subject mr850 respiratory humidifier during the performance check.Conclusion: the mr850 respiratory humidifier is used to warm and humidify gases delivered to patients requiring mechanical ventilation, positive pressure breathing assistance or medical gases.The subject mr850 was found to operate normally and within specification during the performance check.Based on the investigation conducted and the information reported by the hospital, we conclude that the mr850 respiratory humidifier did not cause or contribute to the reported event.
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