Section b5, describe event or problem, of the initial medwatch report stated: it was reported that the device needed service.During the device evaluation ventec observed that the ventilator measured lower peep (positive end expiratory pressure) than set and that its exhaled tidal volume (vte) levels were low.There were no reports of patient involvement associated with the reported event.Please see section b5, describe event or problem, for what the initial medwatch report should have stated.Section h10, additional manufacturer narrative, of the initial medwatch report stated: h6: the device was evaluated by ventec where the reported issues of lower peep (positive end expiratory pressure) than set and low exhaled tidal volume (vte) levels was confirmed.Ventec replaced the internal flow transducer (ift) and external flow module (efm) to resolve the reported issues.Proper device operation was observed through functional and performance testing.The investigation determined that the cause of the reported issues was the ift and efm.Section h10, additional manufacturer narrative, of the initial medwatch report should have stated: h6: the device was evaluated by ventec where the reported issues of it measuring lower peep (positive end expiratory pressure) than set and low exhaled tidal volume (vte) levels was confirmed.Ventec replaced the internal flow transducer (ift) and external flow module (efm) to resolve the reported issues.Ventec confirmed that the device had previously logged patient circuit disconnect and high peep alarms, however, these issues could not be duplicated during testing.If these issues were intermittent, they would be resolved through the replacement of the ift and efm.Proper device operation was observed through functional and performance testing.The investigation determined that the cause of the reported issues was the ift and efm.
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