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Investigation evaluation: an evaluation of the photos provided by the user was performed.The first photo provided was of the pouch with label which confirmed the lot number.Based off the second photo provided, the complaint could not be confirmed as it is hard to make a determination at what exact location the leakage occurred.Without return of the complaint device, further investigation could not be performed.A discrepancy or anomaly that could have contributed to the reported event was not 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 conclusion: we could not conduct a complete investigation because the product said to be involved was not returned for evaluation.A definitive cause for the reported observation could not be determined.A possible contributing factor to balloon material damage is inadequate lubrication applied to the balloon prior to advancement through the endoscope.The instructions for use direct the user: "apply a water soluble lubricant to balloon to allow easier passage through accessory channel." this activity will aid in endoscopic advancement and balloon preservation.Another possible contributing factor to balloon material damage is inadequate negative pressure applied to the balloon dilator prior to advancement through the endoscope.The instructions for use direct the user: "prior to insertion of balloon dilator, negative pressure is mandatory to maintain balloon deflation.¿ 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.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 contain the following warning: ¿recommended 100% balloon inflation pressure can be found on q.I.D.And on catheter tag of balloon dilator.¿ 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 damage to the balloon material.Prior to distribution, all eclipse ttc wire guided 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.
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Investigation evaluation: an evaluation of the photos provided by the user was performed.The first photo provided of the pouch with label confirmed the lot number.Based off the second photo provided, it is hard to determine the exact location the leakage occurred.Our laboratory evaluation of the product said to be involved confirmed the report.The dilation balloon with stylet wire was included in the return of the device.A functional test was performed on the returned device; a ds-60cc-s was filled with water and attached to the balloon inflation port.The syringe was placed into an inflation handle, and negative pressure was applied to the balloon.After applying negative pressure, the balloon was inflated.The balloon would not hold pressure and water was seen leaking from two pinholes on the proximal side of the balloon.A visual examination of the catheter showed several kinks at 13.8 cm, 15.2 cm, 17 cm, 130.8 cm, 153.6 cm, 155.5 cm, 169.4 cm and 234.5 cm from the distal end of the device.A visual examination of the stylet wire was performed, a section of the coil spring at the distal end of the stylet wire measuring approximately 4.5 cm had unraveled and detached and there were sections of blackening on the stylet wire indicating possible corrosion.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.The presence of kinking along the catheter and damage to stylet wire may indicate the device received excess pressure during handling and/or insertion into the endoscope which could contribute to device leakage.A hole in the balloon material can occur if inadequate lubricant is applied prior to advancement through the endoscope.The instructions for use state: ¿apply a water soluble lubricant to balloon to allow easier passage through accessory channel." this activity will aid in endoscopic advancement and balloon preservation.A hole in the balloon material can occur if inadequate negative pressure is applied.The instructions for use direct the user: ¿prior to insertion of balloon dilator, negative pressure is mandatory to maintain balloon deflation." 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 hole in 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 also contain the following precaution: ¿entire balloon should be extended beyond tip of endoscope, and be completely visualized and positioned, before inflation.¿ 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 eclipse ttc wire guided balloon dilators are subjected to a visual inspection and functional testing to ensure device integrity.The functional tests consist of a flow and leak test.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.Additional comments regarding this report: based on the investigation findings that a section of the stylet wire was missing, the area representative has been directed to contact user facility to make them aware of the missing section.
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