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Investigation evaluation: the product said to be involved was returned in a white plastic bag.Provided with the return was an open pouch from the lot number provided in the report.The label matches the product returned.Our laboratory evaluation of the product said to be involved confirmed the report due to a pinhole in the balloon material.The device returned with the balloon fully deflated and the tip of the stylet slightly kinked.During functional testing a cook dilation syringe (ds-60cc-s) from our shelf stock was filled with water and attached to the inflation port.During inflation, water was noted coming from a pinhole in the proximal portion of the balloon material, confirming the complaint.No other anomalies were detected with the device.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: our evaluation of the returned device confirmed the report due to a pinhole in the balloon material.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.In the report it states that negative pressure and lubrication were not applied to the balloon prior to advancing down the endoscope accessory channel.Negative pressure and applying lubrication will aid in balloon preservation and optimize balloon performance.The instructions for use includes the following precautions: "prior to insertion of the balloon dilator, negative pressure is mandatory to maintain balloon deflation." and "apply a water-soluble lubricant to the balloon to allow easier passage through the accessory channel." in addition, the user is further instructed to "maintain negative pressure on the balloon dilator during introduction." the application of negative pressure will aspirate all residual air from the balloon and ease endoscopic advancement.Another possible contributing factor to a pinhole/hole in the balloon material is if the balloon material comes into contact with a sharp object or a burr in the endoscope accessory channel.Prior to distribution, all eclipse ttc wire guided balloon dilators are subjected to a visual inspection and functional testing 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: based on the quality engineering risk assessment no corrective action is warranted at this time.A review of the complaint history was conducted.Quality assurance will continue to monitor for complaint trends.Additional comments: based on the information provided that negative pressure and lubrication were not applied to the balloon prior to advancing down the endoscope accessory channel, 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 esophageal balloon dilation, the physician used a cook eclipse ttc wire guided balloon dilator.It was reported [that] after the balloon reaches the stenosis site endoscopically, water is injected and a leak is detected.The procedure was completed by using another new device.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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