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Boston scientific inflation device (unknown type).Investigation evaluation: our laboratory evaluation of the product said to be involved confirmed the report.During a visual evaluation of the returned product, a split was observed in the balloon material.The split was from the proximal end of the balloon to the distal end.At the distal end of the device the balloon was detached from the catheter, however there was split in the balloon material at the joint.Glue was observed at the distal balloon joint.This damage could have occurred during removal of the balloon dilation device.Due to the condition of the device, the balloon could not be tested.No section of the balloon material was missing.No kinks in the catheter was observed.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 conclusions: 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.The additional information provided indicated the balloon dilator did not receive negative pressure prior to advancement through the endoscope.This could contribute to the reported observation.The instructions for use direct the user in the system preparation, "aspirate all residual air from balloon" and "note: maintain balloon deflation with negative pressure." 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.A possible contributing factor to balloon damage is inadequate lubrication of the balloon with a lubricating agent.The instructions for use direct the user to "apply a water soluble lubricant to balloon to allow easier passage through accessory channel." this activity will aid in endoscopic advancement and balloon preservation.Damage to the balloon material can occur if the balloon is inflated prior to advancement through the endoscope or if the balloon is inflated while partially or fully inside the accessory channel of the endoscope.The instructions for use contain the following precaution: ¿do not pre-inflate balloon.¿ the instructions for use states this about balloon withdrawal, "to remove deflated balloon from accessory channel, straighten endoscope tip and withdraw balloon using a continuous twisting motion.Caution: balloon must be completely deflated with all fluid removed before withdrawal." prior to distribution, all quantum ttc esophageal balloon dilators 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: a review of the complaint history was conducted.The likelihood of occurrence is considered rare.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.Additional comments regarding this report: based on the information provided, a cook representative has been directed to contact the medical facility involved in an effort to promote further education and understanding related to appropriate usage of this product.
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During an esophagogastroduodenoscopy (egd) the physician used a cook quantum ttc esophageal balloon dilator.The balloon was inflated, held for one (1) minute, and then the balloon ruptured while inside the patient.The tip of the device was noted to be separated but the entire device came out when removed from the patient.
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