Samples and a photo were received by our quality team for evaluation.Upon inspection of the sample, it was observed that the foam on the applicator was welded upside down; therefore, the incident could be verified.A review of the internal manufacturing device records and raw material history files for the reported lot numbers was performed and no recorded quality problems or rejections to this incident were found.Based on the investigation, the most probable root cause of the foam coming off the applicator during use was the incorrect orientation of the foam tip at the time of manufacturing.The foam welding onto the applicators consists of two parts.One part is foam and the other part is a thin novonette that is glued to the foam.The function of the novonette is to facilitate the welding of the foam to the plastic applicator.When assembled the 1ml applicators must have the foam positioned in such a way that the novonette of the foam is in contact with the plastic applicator.The sample shows that the unit was assembled with the foam upside down.Without the presence of the novonette between the foam and the plastic applicator the welding process was unsuccessful resulting on an open weld.To prevent this incident from happening, all 1ml assembly machines have two vision systems that ensure the proper orientation of the foam.If the foam is placed incorrectly the part is not welded and is removed from the assembly process.All sensors were checked on all three 1ml assembly machines and they were performing appropriately.Sensors are checked at the beginning of every shift as part of the setup process.An additional check during the creation of each lot has now been added to the manufacturing process.This incident has been added to our database of reported incidents.Our business team regularly reviews the collected data for identification of emerging trends.H3 other text : see narrative below.
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