It was reported that the procedure was to treat a right coronary artery.The 5x15mm nc trek balloon was advanced to the lesion without issue and was inflated 4 times without problem.However, after post-dilatation, the balloon was only able to deflate partially.Negative was held for more than 1 minute when the balloon was then able to be deflated completely but did not refold properly which made it unable to be removed as it became stuck on the guiding catheter.To remove the balloon, all devices had to be removed altogether.Doppler imaging was performed to verify the integrity of the right radial artery which was confirmed to be fine.Another access site (radial artery) had to be accessed to proceed post-dilatation to successfully complete the procedure.There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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Visual and functional inspections were performed on the returned device.The reported failure to fold was confirmed.The reported difficulty removing the device and deflation issue could not be replicated in a testing environment due to the condition of the returned device.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history of the reported lot did not indicate a lot specific quality issue.The investigation was unable to determine a conclusive cause for the reported deflation issue; however, the reported difficulty removing the device and failure to fold appear to be related to circumstances of the procedure.There is no indication of a product quality issue with respects to the design, manufacture, or labeling of the device.
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