A device history record (dhr) review could not be completed as the lot number was not provided.At the time of this investigation no samples were available, therefore, we could not determine a failure mode or definitive root cause.The plant¿s quality system mandates suitable in-process controls to measure seal integrity of representative samples.Forty-eight samples were pulled during production of each of these lots and tested at predetermined locations to best gauge the seal integrity by pull test and functional leak testing.All samples pulled from these lots met the predetermined criteria before they were released.This product is to be used in the upright position.A corrective action will not be initiated at this time since no samples were provided and the information is not sufficient to identify a root cause.The manufacturing site will continue to monitor the incoming complaints for burst against this product.
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