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.This is the only complaint reported for this lot number and issue to date.Visual inspection and functional/performance evaluation: the device was not returned; therefore, no visual inspection or functional testing of the device was performed.Medical records review: medical records were not provided for review.Image/photo review: images/photos were not provided for review.Conclusion: the investigation is inconclusive, as the sample was not returned for evaluation.The definitive root cause could not be determined based upon available information.It is unknown whether procedural issues or the introducer sheath contributed to the difficulties inserting the balloon through the sheath.The root cause for the reported slow deflation outside the patient is unknown.Labeling review: the current ifu (instructions for use) states: warnings: when the catheter is exposed to the vascular system, the location of the balloon should be confirmed while under high quality fluoroscopic observation.Do not advance or retract the catheter unless the balloon is fully deflated.If resistance is met during manipulation, determine the cause of the resistance before proceeding.Applying excessive force to the catheter can result in tip or catheter breakage, catheter kink, or balloon separation.Precautions: use the recommended balloon inflation medium (25% contrast medium/75% sterile saline solution).It has been shown that a 25%/75% contrast/saline ratio has yielded faster balloon inflation/deflation times.Never use air or other gaseous medium to inflate the balloon.If resistance is felt during post procedure withdrawal of the catheter through the introducer sheath/guide catheter, determine if contrast is trapped in the balloon with fluoroscopy.If contrast is present, push the balloon out of the introducer sheath/guide catheter and then completely evacuate the contrast before proceeding to withdraw the balloon.If resistance is still felt during post procedure withdrawal of the catheter, it is recommended to remove the balloon catheter and introducer sheath/guide catheter as a single unit.Additionally, precautions and specific directions for use of the ultraverse 035 pta dilatation catheter are included in the ifu.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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