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A device history record (dhr) review revealed no discrepancies that may have contributed to a complaint of this failure mode.All quality assurance testing performed during manufacturing was acceptable.The quality assurance review of the visual, physical and dimensional evaluation results indicated that the product met specification requirements.In addition, all dhrs are reviewed for accuracy prior to product release.One photo was provided by the customer.Visual evaluation of this photo was performed.The picture shows part of the palindrome catheter.It was observed that the catheter was cut near the antimicrobial sleeve and the section has bubbles or blistering.The catheter showed signs of use.The sample was received for analysis and investigation.The sample consisted of one part of the palindrome catheter.The sample showed signs of use and wear on the cuff.It was observed on the sample that a section of the antimicrobial sleeve has blistering or bubbles.Maximized photos were taken to capture the issue.The bubbles were cut, and it was seen that there was air between the upper and lower layer.In the longitudinal cut it was observed that the catheter area and lower layer were clean, and no visible issues were observed.Based on a fishbone diagram, the possible root causes were identified.According to the instructions for use (ifu) the customer should perform a visual inspection before using the device.The ifu stat es to not use the catheter or components if they appear damaged or defective, and not use acetone on any part of the catheter.It is unknown if there was use another agent additional to the alcohol to clean the catheter and which percent of alcohol was used.According to the investigation performed, the possible cause is considered as wrong cleaning agent used or patient conditions.No trends or triggers have been found, therefore, a corrective and preventive action (capa) is not deemed necessary at this time.It must be noted that in-process are in place to prevent nonconforming product from leaving the manufacturing operations.This complaint will be used for tracking and trending purposes.If information is provided in the future, a supplemental report will be issued.
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