Additional information received from the customer on reprocessing.This report is being supplemented to provide additional information based on the legal manufacturer's final investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.Based on the results of the investigation, the foreign object could not be identified.The root cause of the foreign object residue remaining in the device could not be identified.However, a definitive root cause could not be determined.In addition, it is likely that handling of the device at the facility caused the event to occur.However, a definitive root cause could not be determined.The reprocessing procedures are described in the following chapters.These possibly prevent phenomenon (1).Chapter 6 "compatible reprocessing methods and chemical agents" chapter 7 "cleaning, disinfection, and sterilization procedures" according to the instruction manual as to handling of the actual product, there is the following description.Based on this, it is possible to be able to prevent phenomenon (2)."do not apply shock to the distal end of the insertion tube, particularly the ultrasonic transducer and the objective lens surface at the distal end.This could cause abnormalities in the visual and/or ultrasonic images"."do not hold the ultrasonic transducer when holding the insertion tube.The ultrasonic transducer damage can result and/or the ultrasonic image will be abnormal".Information on reprocessing: in general, our customer was trained by olympus for processing practice in accordance with ifu.¿ when this device came into the repair center for inspection, the customer did not provide any information regarding failure and/or issues on the reprocessing practice.¿ as this repair order is nothing to do with hmi nor patient infection, the customer is not willing to provide any information for the reprocessing practice to olympus.Olympus will continue to monitor field performance for this device.
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