The device was returned to service center for an evaluation and the user¿s complaint has been confirmed.A visual inspection was performed and found the bending section skeleton protruding out from the cover.The bending section damage is approximately 70mm from the distal end side which is also causing a leak.The bending section cover was removed in order to reveal the extent of the damage.The bending section skeleton is fully separated producing sharp edges near the insertion tube side.The condition of the bending section support pins was also checked and found eight out of the twelve pins receding into the channel.The instruction manual states the following warnings; ¿do not twist or bend the bending section with your hands, equipment damage may result¿.The instructions for safe use manual also indicates that, damage to the bending section would happen if excessive force was applied while angulating in the opposite direction if there was no movement from the bending section and this would occur more so in a narrow environment.Based on the evaluation, the likely cause of the bending section skeleton breaking is due to excessive force and/or stress, attributed to mishandling.
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