This report is being submitted as follow-up #1 for mfg.Report #9681834-2014-00326 to provide the return sample evaluation.The involved device was returned to the manufacturing facility for evaluation.Visual inspection confirmed the edge of the blood inlet port on the oxygenator module had been fallen inward.The tube attached to the blood outlet port was removed and the blood outlet port was macroscopically inspected.No visible anomaly, including a break or deformity was found.Simulation testing was conducted on current product samples.The blood inlet port with the cap applied to it was exposed to a pushing force by pushing it against a flat floor.The blood inlet port got deformed.A review of device history record and product release decision control sheet of the involved product/lot# combination confirmed that there was no indication of production related problems.A search of the complaint file did not find any report with the involved product/lot# combination.There is no evidence that this event was related to a device defect or malfunction.Although the exact cause cannot be determined based on the available information, the appearance of the involved sample is most consistent with the device bing subjected to a pushing force on the blood inlet port due to some factor(s).When the device is packed in the unit box, the blood inlet port on the oxygenator module does not come into contact with the cushion material.From this it is most likely that the blood inlet port was exposed to a pushing force in the state of the actual sample not being packed in the unit-box.From the available information, however, it cannot be determined when and how the actual sample was subjected to the pushing force.There is no evidence that this event was related to a device defect or malfunction.Device labeling does address the potential for such an event in the instructions-for-use by statements such as: "inspect the device and package carefully.Do not use if the package and/or device is damaged, or if caps are not in place." all currently available information has been placed on file by quality assurance at the manufacturing facility for appropriate tacking, trending and follow-up.
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