Trackwise: (b)(4).A lot history record review was completed for the reported product lot number.There were no ncmr¿s for the reported lot number.The device was returned to the factory on 21sept2020.An investigation was conducted on 23sept2020.A visual inspection was conducted.Signs of clinical use and evidence of blood was observed on the btt.The btt was observed to be intact, no visual defects were observed.A mechanical investigation was conducted.The btt was able to inflate.No visual defects were observed on the silicone btt.A 5cc syringe, filled with saline was attached to the co2 line on the btt and squeezed the syringe to spray the saline.There was no backflow observed in the co2 line.No leaks or holes were observed during this entire process.Based on the condition of the device, the reported failure "no flow" is not confirmed.
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