G4:30apr2021.B4:30apr2021.The device was reported as being in use at the time of the event on a patient.The customer substituted the ventilator with a standby ventilator.The customer reported that the patient experienced an event of oxygen desaturation.The device was evaluated by the customer with assistance from a philips remote service engineer (rse).The customer reported to the rse that the device had been recently updated to software v 3.0.The rse discussed with the customer the various filter which was a non-philips and chambers that had been used.The rse provided advice regarding the possible causes concerning the filter and chamber and discussed the air filter maintenance.The customer successfully ran a performance verification test (pvt).And the reported issue was not duplicated.No replacement parts were required.Submission of a report does not constitute an admission that medical personnel, user facility, importer, distributor, manufacturer, or product caused or contributed to the event.
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