(b)(4).Correction: the correct sample receive date was updated to (b)(6) 2014.Investigation summary: one sample was returned for evaluation.Upon close examination under magnifying lens, a ½ inch diameter hole in the septum of the limb-o hose near the machine connector end was observed.Therefore, reported condition was confirmed.The device history record (dhr) is from january 25, 2011 and is stored off site.The dhr has been requested and will be reviewed upon receipt.However, a previous investigation completed showed that the reported condition is not related to final circuit assembly.This condition is considered to be related to the extrusion process of the limb-o tubing.During the manufacturing process review, it was observed that operative personnel did not execute the documented process (die pin cleaning) correctly.Based on the investigation, the most probable cause for the issue reported is due to the inadequate cleaning of the die-pin of the co-extruder.Please note that the lot reported was manufactured prior to corrective actions.Corrective actions included retraining operative personnel on the cleaning of the die-pin and frequency.Carefusion will continue to monitor and trend this issue.
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