Event summary: as reported, the user opened the packaging and found that the basket wire of an ncircle tipless stone extractor was broken.The issue with this device was discovered prior to making contact with the patient and it was not used.The procedure was completed with a new device.There was no impact to the patient.Investigation - evaluation: reviews of the complaint history, device history record, instructions for use, manufacturing instructions, and quality control procedures and a visual inspection of the device were conducted during the investigation.The device was returned in open packaging inside the clam shell.All fittings were tight, and the handle was able to actuate the basket.The basket sheath appeared to have kinks and bends throughout the length.The support sheath was bowed.The basket appeared to have a segment of wire missing.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.Sufficient inspection activities are in place to identify this failure mode prior to distribution.The device instructions for use cautions, ¿enclose the device in the sheath before removing from the tray/holder,¿ and, ¿do not use excessive force to manipulate this device.Damage to the device may occur.¿ the pictures provided by the user show the device was still partially inside the plastic shipping tray, with the majority of the basket sheath still coiled within the tray.It is possible that the device was not removed from the tray properly: by unlocking the tray cover to easily allow the device to be removed.If it was attempted to remove the device by pulling on the handle without unlocking the tray cover, the friction between the basket sheath and tray could have caused the observed sheath damage, and the basket could also have been stuck, with the removal force applied enough to cause one of the basket wires to break and separate from the device.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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