On april 2nd, 2019, olympus medical systems corp.(omsc) received a literature titled ¿percutaneous nephrolithotomy in transplant patients¿.The literature reported that 2,753 procedures of percutaneous nephrolithotomies were conducted between january 1980 and january 2017.However, the scope used for those procedures were not described on the literatures.Therefore, olympus followed up with the author of this literature, and on may 20th, 2019, olympus was informed that the author possessed the olympus ureterorenoscope (urf-p5 and urf-v) and the non-olympus ureterorenoscope in that period.The literatures reported that one case of renal bleeding which required embolization occurred.There was no information on which model of the endoscope was used in each procedure.Further detailed information such as the relationship between the olympus ureteroscope (urf-5 and urf-v) and the reported complication could not been obtained at present.Therefore, according to the number of the complication known, omsc is submitting one medical device report.
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