Event summary as reported, during a flexible cystoscopy and stent placement the tip of a standard fixed core wire guide detached and began to unravel.The physician then used the wire that was provided with the stent set to complete the procedure.No portion of the device was left within the patient.The patient did not require any additional procedures or prolonged hospitalization.The patient did not experience any adverse effects due to this occurrence.Investigation - evaluation: reviews of the complaint history, device history record, manufacturing instructions, and quality control procedures and a visual inspection of the device were conducted during the investigation.The wire guide was returned in open packaging.The coiled body of the device was uncoiled at the distal tip.A document-based investigation evaluation was performed.No related non-conformances were recorded, and there have been no other reported complaints for this lot number.The device history record review provides objective evidence that the device was manufactured to specification.There is no evidence of nonconforming devices from the complaint lot in house or in the field.A review of relevant manufacturing documents was conducted.It was concluded that the device aspect in question was functionally inspected by quality control and no notable gaps in production or processing controls were noted.There is no indication that a design or process related failure mode contributed to the reported event.Current controls for manufacturing are in place to assure functionality and device integrity prior to shipping.Based on the available information, cook has concluded that a cause of the complaint cannot be established, though it is possible procedural factors contributed to the complaint.Cook will continue monitoring of similar complaints and has notified the appropriate personnel of this event.Per the quality engineering risk assessment, no further action is required.This report is required by the fda under 21 cfr part 803 and is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement contained herein is intended to be an admission that any cook device is defective or malfunctioned, that a death or serious injury occurred, nor that any cook device caused, contributed to, or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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