Investigation evaluation: a product evaluation was performed only by the video provided in response to this report because the product said to be involved was not provided to cook for evaluation.Based off the video provided by the user, we can confirm the report.The user provided a video of the extraction balloon not deflating while in the endoscope.In the video, the user is pushing/pulling the syringe and the balloon does not deflate.The shape and location of the balloon does not show any evidence the balloon material has moved beyond the inflation skive, which would cause it not to deflate.A visual examination of the entire catheter cannot be completed as the device is still within the endoscope in the video.The proximal end of the catheter, near the handle, does exhibit some signs of damage/flattened area which would cause the balloon not to deflate.The cause of the balloon not deflating cannot be confirmed based on the review of the video.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.Our investigation based on the provided video confirmed the report, but a definitive cause for the reported observation could not be determined.Prior to distribution, all d.A.S.H.Multiple size extraction balloons are subjected to a visual and functional test to ensure device integrity.The functional test includes an air inflation test to ensure proper balloon function.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 and this represents an unusual occurrence.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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