G4: pma/510(k): k130280.Visual inspection of the actual sample found that the blood inlet port had to have been fractured at the base.No cracks, deformations, or other anomalies were observed around the blood inlet port.Magnifying inspection of the actual sample found that the fracture surface was smooth overall, and a rippled pattern was observed on the bottom-of-oxygenator side with a striated pattern extending from there.Any foreign matter mixed in the material, which could lead to a decrease in strength, was not observed.From this, it was inferred that the blood inlet port of the actual sample was subjected to an instantaneous load from the bottom side of the oxygenator, and the fracture extended in the direction of the stripe pattern, starting from the center of the ripple pattern.The manufacturing record and the shipping inspection record of the actual sample found no anomaly.Past complaint file of the involved product code/lot number found no other similar report.Based on the results of the investigation, as cause of the reported event, it was likely that some kind of strong impact load was applied around the blood inlet port from the bottom side of the oxygenator, which resulted in the fracture.Regarding the timing at which such a strong impact load was applied, since no anomalies were observed in the manufacturing records, it was conceivable that an impact load was unexpectedly applied during distribution or storage; however, exact timing could not be determined from the condition of the actual sample.Relevant instructions for use (ifu) reference: "do not use if the package or device is damaged (e.G., cracked) or any of the port caps are off." "if the product is dropped during set-up, do not use it.Replace with another device." terumo medical products (tmp) (importer) registration no.2243441 is submitting this report on behalf of ashitaka factory of terumo corporation (manufacturer) registration no.9681834.
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