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A5 - ethnicity= chinese, e1 - customer email= (b)(6), g4 ¿ pma/510(k) #: exempt, h3 - device has not yet been returned to manufacturer; however, our investigation is ongoing, and device evaluation summary will be included in our follow up report once our investigation has been completed.This report includes information known at this time.A follow up report will be submitted should additional relevant information become available.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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Investigation evaluation description of event: it was reported the ncircle delta wire tipless stone extractor¿s basket wire broke while removing a stone during a retrograde intrarenal surgery (rirs) procedure in the left kidney.No part of the device remained in the patient.The procedure was completed by using another same-like device.The device was tested prior to use.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.Reviews of the complaint history, device history record (dhr), instructions for use (ifu), manufacturing instructions (mi), and quality control (qc) procedures, as well as a visual inspection and functional test of the returned device, were conducted during the investigation.One ncircle delta wire tipless stone extractor was returned in an open package with label.Basket wires were broken, one near the distal tip and one near the shaft.Both breaks show signs of charring.The handle will actuate the basket.Additionally, a document-based investigation evaluation was performed.A review of the device master record (dmr) concluded that sufficient inspection activities are in place to identify this failure mode prior to distribution.A review of the device history record (dhr) found no non-conformances related to the reported failure mode.A review of complaint history records shows no other related complaints associated with device lot.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 lot related complaints that have been received from the field, it was concluded that that the device was manufactured to specification and there is no evidence that nonconforming product exists in house or in the field.Cook also reviewed product labeling.The product ifu, provides the following information to the user: precautions · the device is conductive.Avoid contact with any electrified instrument.· enclose the device in the sheath before removing from the tray/holder.· do not use excessive force to manipulate this device.Damage to the device may occur.How supplied upon removal from the package, inspect the product to ensure no damage has occurred.Based on the information provided, inspection of the returned device, and the results of the investigation, unintended use error caused or contributed to the event.The broken ends of the wires had evidence of charring, indicating exposure to a laser or other electrified device.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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