The device was returned to zoll medical corporation for evaluation.The customer's report was not replicated or confirmed.The device was put through extensive testing bench handling, impedance, and defibrillation cycling without duplicating the report.No accessories were returned for evaluation.An internal inspection of the device found no discrepancies.A review of the device log did not observe any device faults or malfunctions.There are multiple short detected messages noted throughout multiple logs which are all followed with 30j tests.This is an expected message when performing a 30j test.The device was recertified and returned to the customer.Analysis of reports of this type has not identified an increase in trend.
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