Olympus medical systems corp.(omsc) was informed that before the reprocessing the user checked the concentration of the disinfectant solution, it was no problem.Furthermore during the reprocessing the user checked the concentration of the disinfectant solution, it was insufficient.The samples were taken from the disinfectant removal port of the subject device.The user exchanged the disinfectant to new one and the reprocessing was completed.The user surmised that the water drop in the reprocessing basin might have been mixed into the sample, and it might have affected to the result of the concentration of the disinfectant check.There was no report regarding patient injury and damage of the endoscopes related to the event.
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The subject device was not returned to olympus medical systems corp.(omsc) for evaluation, therefore omsc could not investigate the subject device.Omsc could not review the manufacture history (dhr) of the subject device because the serial number of the subject device was unknown.However omsc considered that the subject device had no irregularity, because omsc only shipped devices which passed the inspection.The exact cause of the reported event could not be conclusively determined.However, based on the information from the event report, there was the possibility that this phenomenon was attributed to the effect by the adhering a waterdrop and so on onto the lid, basin, etc.Regarding the concentration check of the disinfectant solution during the reprocessing.If additional information becomes available, this report will be supplemented.
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