Zoll medical corporation evaluated the device and the customer's report was not replicated or confirmed.The device was put through extensive troubleshooting including full functional testing and charging the device multiple times without duplicating the report.Review of the device activity logs showed a single shock was delivered on the reported event date, from pressing the shock button.The device log showed no evidence that the device acted on its own in delivering a shock, or any critical error that would have affected the defib function.Therefore, our investigation for this reported malfunction was unsubstantiated.The device was recertified and returned to the customer.No trend is associated with reports of this type.
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