The returned device was thoroughly inspected and analyzed upon receipt at our post market quality assurance laboratory.Visual inspection found damage to the rv seal plug consistent with reports, further inspection found port is missing set screw.There was also damage noted on outside of header around seal plug, likely caused by removal of device from pocket.Replacement set screw was inserted into the device and the device was then exposed to simulated heart load conditions, defibrillation, pacing, and sensing functions were tested.Impedance testing was completed and all measurements were within normal limits.The device operated appropriately with no interruptions in therapy output at the returned programmed settings.Laboratory analysis of the returned device found the device to be missing a set screw, it is however unclear at what point the set screw was lost and cause cannot be established.
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