Investigion summary: based on sample evaluation and considering that device was received activated completely, we cannot confirm or associate the defects to manufacturing process.This reported defect could be related with an incorrect activation by user.A possible cause is that after of finishing the puncture, user performed the activation since adapter sti prn, removing all the safety mechanism and leaving exposed cannula.Dhr for lot number 6146726 was reviewed and no qns or other events were related to the complaint stated by the customer.Material 383329 with lot number 6146726 was manufactured on may 31, 2016.According to sampling plan applied for product performance, this lot was accepted and released.During this lot number (b)(4) samples were activated by qa tech to perform 3 test of pull force.Stylet/cannula removal force through inserter wings, stylet/cannula removal force through the prn component, outer safety sheath disconnection force from prn component.No values out of specification or problems during activation were found.All relevant information during the dhr review shown that meet all established manufacturing criteria.Investigation conclusion: based on investigation results to date, root cause for manufacturing process cannot be determined; however, a possible cause can be during device activation by user.
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