The following were reviewed as part of this investigation: patient severity, frequency analysis, applicable previous investigation(s), sample (if available), applicable fmea documents, labeling, and applicable manufacture records.Based on a review of this information, the following was concluded: the complaint of thrombus was inconclusive because no sample was returned to vad for evaluation.Based on the description of the reported event, possible contributing factors include catheter maintenance, patient physiology, and fibrin formation; however, the lack of a returned sample prevented both confirmation of the reported event and identification of a root cause(s).Consequently, this complaint is inconclusive at this time and the reported event could not be confirmed as a deficiency in product manufacture or deficiency while under correct product use.A lot history review (lhr) of recn1316 showed no other similar product complaint(s) from this lot number.Facility discarded.
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