Blank fields on this form indicate the information is unchanged, unknown or unavailable.Description of event: additional information was provided by the customer on 20mar2019.It is unknown whether the small white piece of the device fell in the patient or onto the field.The procedure was completed successfully, and there were no additional procedures required or adverse effects to the patient due to this event.Investigation ¿ evaluation a review of the documentation and quality control of the device were conducted during the investigation.The complaint device was not returned so a physical examination of the device could not be made.Therefore, the device cannot be confirmed to be manufactured out of specification.Lot information is unknown.Therefore, the device history record (dhr) could not be reviewed.Additionally, a review of the sales records to the user facility up to three years prior to the date of event (16nov2017) could not sufficiently narrow down the lot number.As such, potential nonconformances and other complaints under the complaint device¿s lot could not be reviewed.Based on the information provided, no returned product and the results of the investigation, unintended use error is likely to have contributed to the failure mode.A manufacturing cause of failure is not suspected based on review of the device master record, and it is feasible to believe that the depth stop was inadvertently pulled off the needle during a withdrawing motion.The appropriate personnel have been notified.Per the quality engineering risk assessment no further action is required.Cook will continue to monitor for similar complaints.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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