It was reported the ureteral stent product is too soft and slips off too easily.The reporter stated, ¿the life of this device is six months but in reality it must be replaced in the patient within three months, the patient also finds it difficult to leave in place." as stated in the complaint form from the reporter "product is too soft, you can not change it after 6 months (as stated in the data sheet) for these reasons it is necessary to repeat the stent replacement procedure.¿ according to the initial reporter, the patient did not experience any adverse effects due to this occurrence.
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Investigation - evaluation: a review of complaint history, device history review, quality control documentation and specification was conducted during the investigation.The complaint device was not returned therefore, device failure analysis and physical examination of the device used in this case could not be performed.There is no indication that a design or process related failure mode contributed to this event.Review of production and quality documentation did not observe any specific issues with current manufacturing or quality controls that may have contributed to this incident.In addition, review of device history record did not observe any non-conformances that may have contributed to this incident.Based on the information provided, the actual root cause is unknown and no conclusion can be drawn.We will continue to monitor for similar complaints.Per the quality engineering risk assessment no further action is required.Per the risk assessment no further action is required.
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