(b)(4).The lot # 25154132 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.The device was returned to the factory for evaluation on (b)(6) 2020 and investigated on (b)(6) 2020.Signs of clinical use and evidence of blood were observed.There was blood on the loading device.Delivery device was returned outside loading device.The tension spring and seal remained inside the loading device.The white plunger on the delivery device remained unpressed and the blue lock remained in the locked position.The seal was seen in the loading device, the seal was then pulled out from the loading device for inspection.Microscopic inspection showed the tether remained uncut and attached to the seal and tension spring.No crack/delamination of seal was observed.Dimensions of the delivery tube were taken.The inner diameter was measured at 0.199 inches, the outer diameter was measured at 0.219 inches.The length of the delivery tube was measured at 2.50 inches.The measurement values recorded for the delivery tube were within the tolerance specifications.Based on the returned condition of the device and evaluation results, the reported failure "fitting problem" was confirmed.
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