A third-party service agent contacted physio-control to report that their customer's device had failed its daily user test.
Upon initial evaluation, by the service agent, it was observed that the device had logged an event code in its memory that is indicative of a device failure which could result in a partial loss of defibrillator output energy due to a loss of the negative portion of the biphasic output waveform.
The defibrillator output energy could be reduced by up to approximately 20% from the selected energy level.
There was no patient use associated with the reported event.
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