During the procedure, the bending section of the flexible colonoscope detached and the bending rubber tore.Under previous repair, srn (b)(4), the device was repaired and passed outgoing quality control inspection without damages or functional issues before returning to the customer.Flexible scope large diameter video pediatric colonoscope olympus pcf-h190dl was returned to ims (b)(4) lab on october 11th, 2022 for evaluation.Upon investigation, it was found that the joint where the passive bending section attaches to the coil pipe housing had separated.The mating parts appeared to be in good condition and there was evidence that the appropriate installation steps were followed during the previous servicing.There was enough adhesive in the appropriate area and the screws were still in place.It appeared that a strong force may have been applied in a twisting motion as both side tabs were flared out.This type of damage is typically caused by twisting of the bending section which can cause the adhesive to break free causing the screws to ride under the tabs.The device usage counter indicated that it had been used over 200 times since the previous repair.The lab was unable to determine if the damage to the bending section occurred during use in the procedure or before as it is possible that the bending section may have broken free during cleaning and/or handling prior to the procedure.At that point, the bending rubber may have been holding the bending section together until it finally tore.Due to the nature of the damage and the amount of usage since the previous repair, it is unlikely that the detachment of the bending section was related to the previous device servicing and was likely attributed to improper care and handling at the user facility.To address the issues identified, repair services ang901 - angulation adjusted w/stoppers (190 series), bnr900 - bending rubber replaced (190 series), int062 - colonoscope insertion tube replaced, bns904 - bending section replaced (190 series), and fer903 - olympus 190 series - flexible endoscope refurbished - level two were performed on the device and passed outgoing quality control inspection on 10/18/2022.
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