A failure analysis was conducted by argon critical care systems singapore pte.Ltd.To identify the cause of the reported failure.Evaluation methods employed included visual and functional inspection of the returned device, documentation and internal manufacturing process review and complaint trend analysis.The returned complaint sample showed that the connection between the safedraw and the 4¿ tubing assembly was found detached upon receipt.From the failure investigation and available information on the reported incident, the cause of the complaint described above is due to insufficient uv adhesive applied on the pressure tubing assembly.A review of the batch documentation, which included device history records and inspection reports, showed that there were no defects found during the assembly process.The pressure tubing assembly is bonded manually by applying uv adhesive onto the tubing and inserting it to the safedraw fitting.Visual inspection was conducted to check for any void between the bonded area and any detached tubing from fitting during assembly process.Pull test inspection results showed that the detachment force between the fitting and the tubing met the specification.Production associates were made aware on the defect on the received complaint and to give emphasis on the fillet that must be smooth and continuous and 100% visual inspection on the connection between the safedraw fitting after the bonding process.
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