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The device in question was returned for technical analysis.Upon arrival the clip was still on the cap and was slightly advanced on one side.During technical analysis, the clip could be applied without any problems.All components were inspected and no deviation from product specification could be detected.It was reported that due to the use of suction and blood the white application ring was not visible.Therefore the clip application was not verified by the user before tissue resection.It is stated in the instruction of use that a grasping device should be used to mobilize the tissue.Additionally, the white application ring must be remain visible and be observed.Only when the white application ring has moved fully forwards to the edge of the cap the clip has been applied.The risk of causing a perforation is indicated in the instruction of use.Moreover, it is addressed in the user trainings to verify successful clip application before resection of target tissue.Note: this report is a retrospective submission of complaints from the year 2023.
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