The device, data card, ecg cable, and one step cable were returned to zoll medical corporation for evaluation.The customer's report was not replicated or confirmed.The device was put through extensive testing including bench handling, stress testing, and environmental chamber testing without duplicating the report.An internal inspection of the device found no discrepancies.The clinical log file was not available to review for the reported event date.Review of the device activity log found entries indicating there may have been poor pad contact with the patent.However, this may be the operator troubleshooting.There were no errors or indication of a failure while pacing was being adjusted.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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