Concomitant products: cook dilation syringe, ds-60cc-s.Investigation evaluation: our laboratory evaluation of the product said to be involved confirmed the report.A functional test could not be performed because of the condition of the returned device.The balloon had been cut at approximately 25.7 cm from the distal end.A visual examination of the balloon material showed a rupture on the proximal end of the balloon.A cook ds-60cc syringe was also included in the returned of the device.No portion of the balloon appears 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 the reported observation could not be determined because the condition of the product said to be involved prohibited a complete evaluation.A discrepancy or anomaly that could have contributed to the reported observation was not observed during our laboratory analysis of the returned product.It is unknown if the balloon received negative pressure and lubrication prior to advancement through the endoscope accessory channel.A possible contributing factor to balloon material damage is failure to apply negative pressure and lubrication.The instructions for use direct the user: "to facilitate passage through the endoscope, apply negative pressure to the catheter.Apply a lubricating agent to the balloon to facilitate passage through the endoscope accessory channel." the application of negative pressure will aspirate all residual air from the balloon and ease endoscopic advancement.Negative pressure will also aid in balloon preservation and optimize balloon performance.The application of lubrication will aid in endoscopic advancement and balloon preservation.Another possible contributing factor is using a compromised inflation device to inflate the balloon.If the pressure reading of the inflation device is inaccurate, this could contribute to over inflation, possibly resulting in a failure of the balloon material.Prior to distribution, all hercules 3 stage balloon esophageal are subjected to a visual examination 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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During an esophagogastroduodenoscopy (egd), the physician used a cook hercules 3 stage balloon esophageal.On the third time [inflation], going from 19 mm to 20 mm, the balloon popped.
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