On (b)(6) 2023, due to descending colon obstruction, the patient was implanted in the gastroscopy room of (b)(6) with niti-s enteral colonic uncovered stent, cdt2212.After the stent was released, feces gushed out and blocked the endoscopic field of vision.After rinsing, the stent was found to have shifted inward without support at the focal site, and then the second niti-s enteral colonic uncovered stent was implanted.
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It was reported that after stent was released, feces gushed out and the stent was found to have shifted from the focal site.It was confirmed from the device history record that device had been manufactured with no significant issue and passed all the inspections successfully.Migration can occur in any company's device as well as ours.It is affected by patient's lesion status, peristalsis of organs, and drug use in general.It is difficult to identify the exact root cause because the device was not returned, and it is difficult to reconstruct the situation at the time of procedure.However, based on the description "after the stent was released, feces gushed out and blocked the endoscopic field of vision.After rinsing, the stent was found to have shifted inward without support at the focal site", it is assumed the stent was migrated due to progression of the patient's disease and patient's condition, feces during the procedure and other factors complexly.Through the user manual by taewoong, it is stated that "potential complications associated with the use of niti-s & comvi stent may include, but are not limited to: stent migration".This suspected device is not registered in the us but we will continuously monitor the same or similar customer complaints through accurate analyses.
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