This alleged failure mode poses a low risk to a pt because the issue was observed when the companion external batteries were not in pt use.In addition, this alleged failure mode would not prevent a companion 2 driver from performing its life-sustaining functions, because the companion 2 driver has multiple power sources: external wall power, external batteries and an internal, emergency battery.The companion external batteries will be returned to syncardia for eval.The results of the investigation will be provided in a supplemental mdr.Ref report # 3003761017-2014-00083.
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