Pma/510(k)- k130520.The actual sample was a thermistor probe, which had been cut off the main body by the customer was received for evaluation.Visual and magnifying inspections revealed that the thermistor probe had been twisted and torn off at the glued section to venous blood inlet port.Some traces that seemed to have caused when the thermistor probe was pinched with forceps were observed on the outer surface.Any anomaly that could obstruct the normal connection, such as residue of glue or defective molding, was not found.An attempt to connect the actual sample to a factory-retained thermistor probe cable was made.It was demonstrated that the actual sample was inserted in the thermistor probe cable to the same position that a current product sample was inserted.A review of the device history record and product release decision control sheet of the involved product code/lot number combination was conducted with no findings.Based on the provided information and investigation results, there is no definitive evidence that this event was related to a device defect or malfunction.The investigation results demonstrated that it was possible to insert the factory-retained thermistor probe cable to the actual sample normally.Since the actual sample was cut off the venous blood inlet port by the customer, the actual condition of the actual sample during the event was unable to be confirmed.The exact cause of the reported event cannot be definitively determined based on the available information.(b)(4).
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