This report is being supplemented to provide additional information (h10) regarding the reported event.Device evaluation identified the pin was protruding from the distal sheath of the bending section.The bending section does not move even when the angle lever is moved.Chipping, peeling, falling off of the distal end/gluing part of bending rubber.The black shadow appears on the image and the image was obstructed during the procedure was caused by a broken fiber.There was noted a water/air leak from the distal end as well as from the insertion port/ bending section.Although the definitive cause of the reported event cannot be established, it is judged the bending tube being kinked/broken was caused by excessive pushing force was applied while the bending section was bent when inserting into urinary tract or lower kidney calyx.Per the instructions for use: never perform angulation control forcibly or abruptly.Never forcefully pull, twist, or rotate the angulated bending section.Patient injury, bleeding, and/or perforation may result.It may also become impossible to straighten the bending section during an examination.Device history record review indicates that the product was manufactured and tested in accordance with all applicable procedures and met all final product release criteria.
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