As reported, the basket sheath of an ncompass nitinol tipless stone extractor was separated.The device was tested prior to use and did not open, and the separation was then observed.Another unspecified product was used to complete the procedure.A section of the device did not remain inside the patient¿s body.The patient did not require any additional intervention due to this occurrence.The patient did not experience any adverse effects due to this occurrence.
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Blank fields on this form indicate the information is unknown, unchanged, or unavailable.Event summary: as reported, the basket sheath of an ncompass nitinol tipless stone extractor was separated.The device was tested prior to use and did not open, and the separation was then observed.Another unspecified product was used to complete the procedure.A section of the device did not remain inside the patient¿s body.The patient did not require any additional intervention due to this occurrence.The patient did not experience any adverse effects due to this occurrence.Investigation ¿ evaluation: a visual inspection of the returned device was conducted.A document-based investigation was also performed including a review of complaint history, device history record, the instructions for use, manufacturing instructions, and quality control data.A device failure analysis was conducted on the returned device.The device was returned in the shipping tray inside of the open outer package.It was returned with the handle in the open position.The coil assembly with basket assembly was returned removed from the basket sheath.The basket sheath and support sheath were detached.The coil assembly was bowed where it comes out of the support sheath.No other kinks or bends were noted in the coil assembly.The coil assembly measured 112cm in length.A tba 6 and inserter were also returned.The basket sheath measured 115.5cm in length.Several kinks were noted in the basket sheath located at 11.3cm, 45cm, 61cm, 71cm, 101cm, 105cm, and 106cm from the distal tip.A review of the device history record (dhr) found no non-conformances related to the reported failure mode.Because there are no related non-conformances, adequate inspection activities have been established, there is objective evidence that the dhr was fully executed, and no other related complaints from the lot have been received from the field, it was concluded that there is no evidence that nonconforming product exists in house or in field.A review of complaint history records shows no other complaints associated with the complaint device lot.The instructions for use (ifu), provides the following information to the user related to the reported failure mode: 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.A review of relevant manufacturing documents was conducted.It was concluded that the device aspect in question was visually/functionally inspected by quality control and no related gaps in production or processing controls were noted.The returned device was found to be non-functional.There was severe damage to the device: the basket sheath was kinked multiple locations, the basket sheath and support sheath had separated, the basket assembly had separated from the handle.The extent of the damage prevented a determination of the cause of the issue.Per the quality engineering risk assessment, no further action is warranted.Cook medical will continue to monitor this device via the complaints database 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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