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It was reported that the procedure was to treat the right coronary artery (rca) with calcification.A powerturn guide wire was advanced to the lesion and a 4.5x23 mm xience skypoint stent was implanted.The 4.5x15 mm trek balloon dilatation catheter (bdc) was advanced and inflated once to nominal pressure for post dilatation of the proximal rca; however the balloon did not deflate.The balloon was slowly removed and it was able be removed out of the aorta still inflated.Due to the balloon being inflated, all devices were removed together as a unit, and the shaft of the balloon separated.The last third of the device was removed with the introducer sheath.A longer compression was required as well as implantation of a tr band for closure due to the fully inflated balloon and guiding catheter being removed together as a single unit.There were no adverse patient effects due to the powerturn guide wire.No additional information was provided.
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Visual analysis was performed on the returned device.The reported separation was confirmed.The reported failure to deflate could not be replicated in a testing environment due to the condition of the returned device.The reported difficulty to remove could not be replicated in a testing environment as it is based on operational circumstances.Production record and corrective and preventive actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a review of the complaint history identified no other similar complaints from this lot.It was reported that the balloon did not deflate resulting in the balloon being removed inflated.It should be noted that the coronary dilatation catheters (cdc), trek rx and mini trek rx, global, instruction for use states: withdraw the deflated dilatation catheter and guide wire from the guiding catheter through the hemostatic valve.In this case, it is likely that the balloon being removed inflated resulted in the reported difficulty removing the device and separation.The reported patient effect of hemorrhage is listed in the coronary dilatation catheters (cdc), trek rx and mini trek rx, global, instructions for use as a known patient effect.The investigation was unable to determine a conclusive cause for the reported failure to deflate; however, the reported difficulty removing the device, separation and unexpected medical intervention appear to be related to circumstances of the procedure.Additionally, a conclusive cause for the reported patient effect of hemorrhage/blood loss/bleeding and the relationship to the product, if any, cannot be determined.Possible factors that may contribute to failure to deflate include, but are not limited to, manufacturing, deflation technique, tortuous anatomy, contamination in the inflation lumen, contrast concentration or damage to the guide wire and/or inflation lumen.In this case, since the balloon was unable to deflate, it was removed fully deflated resulting in the reported difficulty removing the device and the shaft ultimately separated.The patient experienced a longer compression and additional treatment with an implantation of a tr-band final.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.H6 correction: medical device problem code 2017 clarifier- incorrect removal.
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