The actual device was received at the manufacturing facility for evaluation.Visual inspection revealed no anomalies or defects.Saline solution was let to flow through the actual sample by gravity and the actual sample was subjected to another visual inspection.No visible formation of thrombus was found inside the oxygenator.The actual sample, after having been rinsed and dried was tested for its gas transfer performance.Bovine blood was circulated in the oxygenator module under the following conditions: @ v/q=1, fio2=100% and the blood flow rates of 5l/min.And 3l/min.The obtained values met manufacturing specification.A review of the perfusion record from the involved procedure obtained the following information: the circulation was started at fio2=70% and it was, thereafter, gradually increased.Po2 always stayed around 200mmhg.A review of the manufacturing record of the product code/lot number combination was conducted with no relevant findings.A search of the complaint file did not find any other report with the involved product code/lot# combination.There is no evidence that this event was related to a device defect or malfunction.The investigation results verified that the actual sample was the normal product.An exact cause of the reported event cannot be definitively determined based on the available information.(b)(4).All available information has been placed on file in quality assurance at the manufacturing facility for appropriate tracking, trending and follow-up.
|