The device was not returned to zoll medical corporation for evaluation.Instead, the device log was provided.A review of the provided device log did confirm what appears to be patient use.However, the activity shows the first shock delivery at 22:59:08 and not 20:15 as reported.Defib mode is exited and entered again approximately a minute later.There are several minutes of what appears to be poor ecg signal messages, and the exiting/entering of defib mode, but there is no charge event seen during this time.There is also evidence of a second charge and shock event wherein the report is that no second shock was delivered.The log file is inconsistent with the reported series of events.It is unknown if during the timeframe of seeing possible signal issues and the toggling in and out of defib modes, a charge attempt was made and the device was not in defib mode.There does not appear to be any errors in the log file.However, without receipt of the device we are unable to determine root cause from the device log files.Analysis of reports of this type has not identified an increase in trend.
|