(b)(4).Investigation- evaluation: a review of the complaint history, device history record, quality control (qc), specifications, and a visual inspection of the complaint device has been conducted for the purpose of this investigation.The product was returned in an opened and used condition.A visual inspection noted that the distal tip of the catheter had separated.The break appeared to be a clean break and did not exhibit any elongation.The device history records indicated that the product met pull test requirements.Qc inspection for this device states: "assure tip is round and smooth." / "check for smoothness of bond." pull testing is completed.Specifications states that "material shall be uniform in quality and condition, clean, smooth, and free from foreign materials, lumps, tears, die marks, excessive waviness, or striations.Incoming qc shall verify that material conforms to specifications.Based on this evaluation, we are inconclusive as to why this failure mode occurred.The appropriate internal personnel have been notified and we will continue to monitor for similar complaints.
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