Investigation results: the complaint of retraction issues was confirmed from the two samples that were provided for investigation.The needle on the 1st sample failed to retract due to misplaced adhesive, which bonded the needle hub to the grip.This sample was confirmed for 'needle retraction failure'.During manufacturing, adhesive is dispensed into the hub to secure the cannula.Station misalignment may cause the adhesive to pour on the outside of the hub which can then flow in between the needle hub and the grip or the button.This may cause partial/slow/ or no retraction.A vision system software is in place to mitigate the occurrence of this defect.The needle on the 2nd sample was partially retracted, but the needle hub was caught on a damaged edge inside the shield at the interface of the barrel and grip.Since the safety mechanism was activated and the needle was partially retracted, the 2nd sample was confirmed for 'needle shielding failure'.During manufacturing, the barrel is seated to proper position.Improper machine set-up or misalignment may cause a damaged shield (grip/barrel) which may result in partial or no retraction.Machine 100% inspection and a quality control plan audit is performed to mitigate the occurrence of this defect.Both issues were manufacturing related and the appropriate manufacturing personnel were notified of this complaint.A trend was identified for needle retraction failure complaints.A capa and sa were opened to address this issue.This complaint type and corrective action will continue to be monitored for effectiveness.A notification of awareness has been sent to the manufacturing department.Complaints received for this device and reported condition will continue to be tracked and trended.
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