Field device evaluation - the field service engineer (fse) went on-site to evaluate the suspect device.The fse cycled the device on and used the user settings, which were used at the time of this reported event.After cycling the device for a period of time the reported device behavior "the piston drifted and the device stopped cycling" was not reproduced.The fse then performed manufacture testing, which the device passed.Additionally a two thousand hour preventative maintenance calibration was performed on this device.At this time, no assembly failure was found therefore, no component root cause can be determined.Vyaire medical does not believe this device contributed to the patient outcome.Furthermore, no allegation by the customer that this device contributed to the patient death.
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The customer reported, while in patient use the piston drifted to its maximum limit and stopped cycling on this oscillator ventilator device.The patient was removed from this device however, during the transition from this device to an alternate device the patient expired.The hospital biomed reported evaluating this suspect device however, he was unable to duplicate the reported device behavior and requested an onsite vyaire manufacture evaluation of this device.
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