On november 21, 2019, olympus medical systems corp.(omsc) received a literature titled ¿bile duct stone treatment using short-sbe (single balloon endoscope) for patients who experienced intestinal reconstructive surgery¿.The literature reported the result of 151 cases of the bile duct stone treatment procedures using an olympus model sif-y0004 or sif-y0015 or sif-h290s between july 2013 and february 2019.On december 20, 2019, omsc obtained the information from the author of the literature that there is a possibility that the endoscopic perforation and the perforation during anastomotic expansion in the literature have a direct relationship with the olympus products.Therefore, omsc submits 3 mdrs for the perforation during anastomotic expansion in addition to 3 mdrs already submitted for the endoscopic perforation.This is 2 of 3 reports.
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