The device was returned to a zoll approved service provider for evaluation and there was no indication of a device malfunction.The device passed full functionality testing using the returned multifunction cable and paddles.The device was recertified and returned to the customer.Review of the device activity log shows that during each shock attempt there is either a "poor pad contact" message, the device is not charged (due to the selected energy value being changed or the selected mode being switched), or an energy other than 30 joules is selected while in a defib pad short state.In each instance, the device issues the appropriate prompt to the user.The likely cause of the report is due to poor coupling between the paddles and patient.Analysis of reports of this type has not identified an increase in trend.
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