(b)(4).The actual device involved in the reported incident was not returned for evaluation.Incidents of cracked/leaking valves can be caused by many factors, including but not limited to an excess torque force in combination with over-tightening the connection; if the product is subjected to aggressive solvents, excessive mechanical stresses, or other various unforeseen circumstances during the clinical application.However without the actual sample, a thorough sample analysis could not be performed and no specific conclusions can be drawn.Review of the discrepancy management system database performed for the reported lot number did not reveal any abnormalities or nonconformances of this nature.If additional pertinent information becomes available a follow-up report will be filed.
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