As reported, during a ureteroscopy with stone extraction, the wire of an ncircle tipless stone extractor basket broke.The wire broke while the basket was in the patient's distal ureter, but the wire did not detach from the device.The procedure was completed with another device.No adverse effects have been reported as a result of this occurrence.
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Event description: as reported, during a ureteroscopy with stone extraction, the wire of an ncircle tipless stone extractor basket broke.The wire broke while the basket was in the patient's distal ureter, but the wire did not detach from the device.The procedure was completed with another device.No adverse effects have been reported as a result of this occurrence.Investigation ¿ evaluation: a document based investigation was performed including a review of complaint history, device history record (dhr), manufacturing instructions, the instructions for use (ifu), and quality control data.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 this device was manufactured out of specification.A review of the device history record found no non-conformances related to the reported failure mode.A review of complaint history records shows no other complaints associated with the complaint device lot.Because there were no related non-conformances, adequate inspection activities have been established, there is objective evidence that the dhr was fully executed, and no other lot related complaints that have been received from the field, it was concluded that there is no evidence that nonconforming product exists in house or in the field.A review of relevant manufacturing and quality control documents was conducted.All extractors are 100% verified to assure the basket opens and closes properly.Cook has concluded that sufficient inspection activities are in place to identify this failure mode prior to distribution.The instructions for use (ifu), provides the following information to the user.Precaution: enclose the device in the sheath before removing from the tray/holder.Precaution: do not use excessive force to manipulate this device.Damage to the device may occur.The complaint device was not returned.Without the device available for investigation, it was not possible to determine a cause of the reported issue.The risk analysis for this failure mode was reviewed, and it was determined that no actions are required.We will continue to monitor for similar complaints.This report is required by the fda under 21 cfr part 803.This report is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement made in it is intended to be an admission that any cook device is defective or malfunctioned; that a death or serious injury occurred; or that any cook device caused or contributed to; or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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