Upon receipt at our quality assurance laboratory, the returned device underwent a thorough analysis.Noth cylinders were visually inspected, and functionally tested.Visual examination revealed that both cylinders had holes in the distal of their bodies with internal component exposed, consistent with explant damage.In addition, it was noted that there were yellow specks on the body of cylinder 1.Both cylinders passed the functional inspection.Based on the information available and analysis results, the reported clinical observation of device bending could not be confirmed; therefore, a conclusion code of cause not established was assigned to this investigation.
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