Investigation - evaluation: a review of the complaint history, drawings, device history record, instructions for use (ifu), manufacturing instructions, specifications, trends and quality control was conducted during the investigation.The complaint device was not returned therefore, no physical examinations could be performed; however, a document based investigation evaluation was performed.There is no evidence to suggest the product was not made to specifications.Review of device history record shows no nonconforming events which could contribute to this failure mode.There are no other reported complaints for this lot number.The device is shipped with an instruction for use (ifu) which lists the appropriate warnings, precautions and instructions for use.The instructions for use (ifu) provide directions for stent exchange and stent removal.¿advance wire guide through stent, ensuring excess wire guide is positioned within the bladder.Uncover suture by folding back the latex sleeve, and release the suture.Withdraw the stent over the wire guide.¿ for removal, withdraw the wire guide following removal of the stent.¿ based on the information provided, no product returned and the results of our investigation, a definitive root cause could not be determined.We will continue to monitor for similar complaints.Per the quality engineering risk assessment no further action is required.
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