As reported, while retrieving a stone from the patient's bladder, a wire from an ncircle tipless stone extractor broke in half.They had to rescope to check for broken pieces.There was no "serious" harm reported.Additional information has been requested regarding the patient and the event.At the time of this report, no further information has been provided.
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Blank fields on this form indicate the information is unknown, unchanged, or unavailable.Summary of event: as reported, while retrieving a stone from the patient's bladder, a wire from an ncircle tipless stone extractor broke in half.No laser or other electrified device was used at the same time as the extractor.Upon rescoping, no broken portions of the device were found.Another device was used remove the stone to complete the procedure.No serious harm to the patient was reported investigation evaluation: reviews of the complaint history, device history record, instructions for use (ifu), manufacturing instructions, and quality control procedures were conducted during the investigation.The complaint device was not returned to cook for investigation.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 related 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 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 related to the reported failure mode: precaution: the device is conductive.Avoid contact with any electrified instrument.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.Based upon the available information, cook has concluded that the cause of the failure could not be determined.The appropriate personnel have been notified and cook will continue to monitor for similar events.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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