Manufacturing review: the lot number was provided and the lot device history records were reviewed.The lot met all release criteria.There was nothing found to indicate there was a manufacturing related cause for this event.Visual inspection: the sample was returned.The balloon appeared to have been previously inflated.Functional/performance evaluation: the patency of the guidewire lumen was tested and passed without issue.The inflation hub was connected to an inflation device and the balloon was inflated with water to rbp (20atm) without issue.The balloon was deflated without issue.The same test was performed twice more, yielding the same results.The balloon was cut at the proximal cone to examine the glue bullet location.It was noted that the glue bullet was in the correct location and was not lodge inside the outer catheter.The glue bullet od was measured and was within the acceptable range.Functional testing for sheath retraction issues could not be performed, as the balloon had been cut at the proximal cone to examine the glue bullet.Medical records review: medical records were not provided; therefore, a review could not be performed.Image/photo review: images/photos were not provided; therefore, a review could not be performed.Conclusion: the investigation is unconfirmed for deflation issues, as the balloon was able to be inflated and deflated without issue during laboratory testing.The investigation is inconclusive for sheath retraction issues, as the balloon was cut before sheath compatibility testing could be performed.The root cause could not be determined based upon the available information.It is unknown whether patient and/or procedural issues contributed to the event.Labeling review: use of the conquest pta dilatation catheter: position the balloon relative to the lesion to be dilated, ensure the guidewire is in place and inflate the balloon to the appropriate pressure.Apply negative pressure to fully evacuate fluid from the balloon.Confirm that the balloon is fully deflated under fluoroscopy.While maintaining negative pressure and the position of the guidewire, withdraw the deflated dilatation catheter over the wire through the introducer sheath.Use of a gentle counterclockwise motion may be used to help facilitate catheter removal through the introducer sheath.The information provided by bard represents all of the known information at this time.Despite good faith efforts to obtain additional information, the complainant/reporter was unable or unwilling to provide any further patient, product, or procedural details to bard.
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