Date of event: (b)(6) 2018.Date of report: 07/01/2019.The manufacturer's field service engineer (fse) replaced the user interface board and system battery.Fse also reloaded the system software, ran a real time clark and system calibration, and performance verification.The determination could not be made that the device failed to meet specifications.The device was not being used for treatment when the reported event occurred, and there is a relationship of the device to the reported problem.No parts were returned to failure investigation; therefore, the root cause of the reported issue could not be determined.This mdr has been reassessed as reportable after a request from the fda on march 1, 2019 to review complaints from 29 nov 2017 to 29 nov 2018.As this has been reassessed, it will appear to be a late mdr.
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