Trackwise # (b)(4).Updated section: b4, e3, g4, g7, h2, h3, h6, h10 the device was returned to the factory for evaluation on 12/14/2021.An investigation was initiated on 08/02/2022.Only the delivery device was returned for investigation.A visual inspection was conducted.The white plunger was observed to be depressed with the blue safety lock off.Signs of heavy clinical use and blood were visible on the entire device, including inside the delivery device handle and on the white seal and tension assembly, indicating an attempt was made to introduce the device into the aorta, hence no measurements of the delivery device were taken.The seal was observed to be in a fully open state and was fully intact, and the tension spring assembly remained inside the delivery tube.No other visual defects were observed.Based on the returned condition of the device, the reported failure "activation problem" was not confirmed.The lot history record review was completed.There were no ncmrs, rework, or deviations documented for the reported lot number.Based on the dhr/lhr review results, it was determined that there is no relation between the batch manufacturing process and the reported failure.
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