A review of the device history record traceable to the reported lot number indicates that the product was processed and released according to the product¿s acceptance criteria.Upon visual inspection of the returned probe, both pneumatic drivelines were detached from the probe.Under magnification we confirmed the presence of adhesive residue around the tubing and a residue line on the tubing indicate both drivelines were fully inserted into the probe ports at one time.With the amount of residue remaining on the tubing for both lines, we could not conclude if this issue was the result of a adhesive application issue.The signs observed on the distal end of each tubing indicate the presence of adhesive.In order to mitigate the occurrence of this type of event, during the manufacturing process, in-process checks during assembly and after final assembly are utilized to help screen out this type of defect from occurring.The root cause of the customer's complaint could not be conclusively determined based on the result of the investigation.A potential root cause could be related to the bonding process, however, this cannot be confirmed with the available information.No root cause could be conclusively determined, therefore no corrective action is required at this time.Based on our current tracking, there are no adverse trends for this reported complaint and lot.Quality assurance has reviewed this complaint and will continue to monitor data for evidence of adverse trending and take further action, as appropriate.The manufacturer internal reference number is: (b)(4).
|