It was reported that the volumes were not delivered correctly, i.E.Volumes delivered were not what were set in volume control ventilation.Based on the preliminary review of provided information, it was found that the peep dropped to ambient pressure during the case in question.There was no patient injury reported.
|
The investigation was carried out based on the available information and the submitted logfile.Based on the logfile analysis, no entries related to the reported symptom could be found.However, it is known from other complaints and plausible that the reported symptom was caused by a sticking peep-valve placed inside the cosy.It was further reported, that the biomed has replaced this valve and put the device back into use.Issues with contamination or assembling of the peep-diaphragm could have caused increased friction inside the valve assembly causing the sticking.Since the service report and additional information has not been received, even though requested three times, the exact root cause could not be determined.In general, the device features an integrated pressure and volume monitoring.Depending on the limits adjusted by the user, the device will generate appropriate visible and audible alarms.The replacement of the affected peep-valve in follow-up to the event has reportedly solved the problem, no patient consequences have reportedly occurred.The number of similar cases, related to the same root cause, is within the expected range of the respective risk assessment and thus accepted.
|