Blank fields on this form indicate the information is unknown, unchanged, or unavailable.Investigation ¿ evaluation.The complaint device was not returned for an evaluation.Therefore, a device failure analysis could not be performed.A document based investigation was conducted including a review of complaint history, the device history record, instructions for use, quality control data, and specifications.A review of the device history record found there were no non-conformances.A review of complaint history records revealed one additional complaint received from the same user facility for the same issue for the same complaint device lot.A review of the instructions for use (ifu) identified the following information related to the reported failure mode.Note: prior to use, immerse aq catheter in sterile water or isotonic saline to allow the hydrophilic surface to absorb water and become lubricious.This will ease placement under standard conditions.1.Pass the appropriate size wire guide into the renal pelvis.There is no information provided in the ifu instructing the user to completely prevent the failure mode described in this complaint.The origin of the catheter shaving could not be determined, but is not meant to occur as a result of the intended use of the device.While it cannot be confirmed, it is possible the wire guide or nephroscope may have contributed to the shaving of the catheter.No device was returned for examination.In the related complaint, a shaving of the catheter was returned that had been sheared off during the procedure.The cause cannot be determined in this instance but is most closely associated with user technique and/or use in conjunction with a device that caused part of the lumen to shear off.There is no evidence to suggest the device was not manufactured to specifications.A definitive conclusion could not be established.A quality engineer risk assessment was conducted to assess the risk of this failure mode and concluded no additional risk reduction activities are required at this time.The appropriate internal personnel have been notified and 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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