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Medical device expiration date: unknown.Device manufacture date: unknown one photo was provided to our quality team for investigation.The product was visually inspected and the stopper was verified to be incorrectly assembled, no other defects could be observed.Final products in this manufacturing line, for this reference are sampled and they are subjected to visual and functional inspections during the different manufacturing sub-processes according to procedures.As the lot involved in this incident is unknown, a device history review could not be performed.While we could not identify a direct issue, it was determined this incident occurred as a result of improper alignment of the plunger/stopper to the barrel during assembly.A camera system is used in the assembly machine to detect missing or improperly assembled stoppers.It is likely a failure in detection or rejection system prevented the product from being properly discarded.Complaints received for this defect and device will continue to be monitored by our quality team for signs of emerging trends one picture has been received to perform investigation.Complaint involves a 50 ml syringe with reference (b)(4) and lot number not known.Dhr from this product cannot be reviewed as no lot number was provided.Upon visual inspection of the picture received, it can be seen the stopper is not correctly assembled.No other defects can be noticed.This defect can appear when there is a misalignment of plunger-stopper-barrel in the assembly station during assembly process.In assembly stations of 50ll manufacturing lines there is a vision system to detect stoppers bad assembled or missing stopper.In case any is defective it is rejected automatically to scrap.In this case, vision system has not detected the failure, and no rejection was made to the bad part.According to information and picture received, the root cause of the nonconformance is likely related with a misalignment of plunger-stopper-barrel in the assembly station, and vision system that detects this failures, did not reject the defective device.Based on all the preventive measures and our stringent in ¿process inspection plan, we are certain that this should be an isolated issue and any recurrence is really unlikely based on no quality notification was opened during manufacturing process of this lot.Although manufacturing record cannot be reviewed, we can confirm that the root cause of the nonconformance is related with a misalignment of plunger-stopper-barrel in the assembly station and no rejection to the bad part was made per visual inspection of the sample.Complaints received for this device and reported condition will continue to be tracked and trended.Information will be captured on trend reports and monitored monthly.Our quality team regularly reviews the collected data for identification of emerging trends.
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