During an endoscopic retrograde cholangiopancreatography (ercp) procedure, the physician used a cook acrobat¿ calibrated tip wire guide.It was reported that the physician detected that the coating of the wire guide peeled off during device exchange.The physician then changed to another of the same device to complete the procedure.A section of the device did not remain inside the patient¿s body.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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Initial reporter; occupation: unknown.Investigation evaluation: our laboratory evaluation of the product said to be involved confirmed the report.There is wire guide coating damage near the distal end.A section of core wire was exposed approximately 14.2cm to 27.1cm from the distal end.Approximately 13.4cm to 14.2cm from the distal end, the wire guide covering has folded over itself.A section of the coating approximately 12.8cm long is frayed and hanging from the wire guide, the coating still attached at approximately 13.4cm from the distal end.No sections of coating appear to be missing.A product-specific discrepancy that could have caused or contributed to this observation was not observed during our laboratory analysis.The device history record for the lot number said to be involved was reviewed.A discrepancy or anomaly was not observed with the product that was released for distribution.Investigation conclusion: a definitive cause for this observation could not be determined because the actual use conditions could not be duplicated in the laboratory setting.Due to a variety of clinical conditions such as patient anatomy, endoscope position or progression of disease state, we could not reproduce the actual conditions of product usage during our laboratory analysis.This limits our ability to conclusively determine a cause.If additional pressure is applied to the wire guide and/or accessory device(s) while moving the wire guide inside the accessory device(s), this could contribute to wire guide coating damage.Prior to distribution, all cook acrobat¿ calibrated tip wire guides are subjected to a visual inspection to ensure device integrity.A review of the device history record confirmed that the lot said to be involved met all manufacturing requirements prior to shipment.Corrective action: corrective action is not warranted at this time based on the quality engineering risk assessment.Quality assurance will continue to monitor for complaint trends and reassess the risk assessment results as post market feedback continues to become available.
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