This report is being submitted as follow-up no.1 for mfg.Report no.9681834-2015-00195 to provide the return sample evaluation results as well as to update sections report type, type of reportable event.Follow up communication with the user facility confirmed that there was no patient involvement.With no patient involvement the report type is no longer classified as adverse and has been updated to reflect a product problem.Considered a malfunction, (b)(4).The actual device was returned to the manufacturing facility for evaluation.Visual inspection upon receipt did not find any obvious anomalies in the appearance.The actual sample was rinsed and dried and subjected to another visual inspection.No anomaly in the appearance was revealed.The actual sample was built into a circuit with tubes and bovine blood was circulated in it at each flow rate, while the pressure drop was determined and confirmed to meet manufacturing specifications.The actual sample was confirmed not to have any occlusion that may lead a pressure rise in the circuit.A review of the manufacturing record of the involved product /lot# combination confirmed that there were no indications of production-related problems.There were no nonconforming indications in the shipping inspection record of the involved product /lot# combination.A search of the complaint file did not find any other report with the involved product/lot# combination.The exact cause of the complaint cannot be determined based on the available information, however a potential cause of the reported blocking in the oxygenator could have been thrombus formation.The device labeling does address the potential for such an occurrence in the instruction for use (ifu) with the statement such as the following: "adequate heparinization of the blood is required to prevent it from clotting in the system.Do not reduce heparin during circulation, otherwise, blood clotting might occur." all available information has been placed on file in quality management for appropriate tracking, trending and follow up.(b)(4).
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This report is being submitted as follow-up no.1 for mfg.Report no.9681834-2015-00195 to provide the return sample evaluation results as well as to update report type, type of reportable event.Follow up communication with the user facility confirmed that there was no patient involvement.With no patient involvement the report type is no longer classified as adverse and has been updated to reflect a product problem in.Section now considered a malfunction, (b)(4).
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