It was reported that during a ureteral stone removal procedure, the road runner uniglide hydrophilic wire guide was utilized.At the end of the procedure, the physician noticed a black foreign object in the ureter.The object was removed using a cysto grasper; the object was observed to be a shaving off of the guide wire.The patient did not require any additional procedures due to this occurrence.According to the initial reporter, 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, unavailable, or unchanged.Additional information: an additional and previously unreported failure mode, "mandril protrusion," was discovered during the physical investigation of the device.Investigation ¿ evaluation.A review of the complaint history, device history record, documentation, instructions for use (ifu), quality control, specifications, and a visual inspection of the returned device were conducted during the investigation.The visual inspection of the returned device confirmed that the mandril was partially exposed in several areas: at a distance of 111.1 cm from the proximal end to a length of 117.0 cm, a 0.5 mm section at a distance of 117.2 cm from the proximal end, and a 1 mm section which was partially exposed at a distance of 117.4 cm from the proximal end.The wire guide was also returned with a separated segment of polymer jacket, which was measured to be 6.5 cm in length.Additionally, a document based investigation evaluation was performed.There is no indication that there is nonconforming product in the field.A review of the supplier's production records confirmed that the lot was manufactured according to validated parameters.It should be noted there were no other reported complaints for this lot number.Based on the information provided, the examination of the returned product, and the results of our investigation, a definitive root cause could not be determined.We will continue to monitor for similar complaints.Per the quality engineering risk assessment, no further action is required.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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