This report is being supplemented to provide additional information based on the legal manufacturer's investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.Based on the the results of the investigation, the phenomenon likely occurred due to external stress (impact) of the scope.The damage confirmed on the distal end could lead to parts falling off of the distal end.The operational manual warns against external stress to the endoscope with the following contents.As traces of external stress added to the subject device was confirmed, the user handling may have deviated from the instructions for use (ifu).Per the instruction manual: "do not strike, hit, or drop the endoscope's distal end, insertion tube, bending section, control section, universal cord, or endoscope connector.Also, do not bend, pull, or twist the endoscope's distal end, insertion tube, bending section, control section, universal cord, or endoscope connector with excessive force.The endoscope may be damaged and could cause patient injury, burns, bleeding, and/or perforations.It could also cause parts of the endoscope to fall off inside the patient".
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