An event of a leaflet having a fold and difficulty opening and closing was reported.The device was returned to abbott for investigation and the investigation found that all three leaflets were flexible and contained no tears, perforations or anomalies.The valve was sent for functional testing at the engineering test lab which revealed leaflet function was considered normal, having no asynchronous motion or leaflet malfunction.The device history record was reviewed to ensure that each manufacturing and inspection operation was performed, and the product met all specifications, including inspection for proper coaptation.The root cause of the reported event could not be conclusively determined.There is no indication of a product quality issue with regards to manufacture, design, or labeling.Undo.
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