The device was not returned for analysis.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 identified no other incidents from this lot.The investigation determined the reported difficulties appear to be related to circumstances of the procedure as it is likely that during post-dilatation interaction with the ruptured 4x12mm nc balloon resulted in the reported device damaged by another device (implanted stent appeared malapposed) thus resulting in the reported patient-device incompatibility wall apposition.The treatment appears to be related to the operational context of the procedure as a new guide wire and balloon were used to dilate the stent again.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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It was reported that the procedure was performed to treat a de novo lesion in the non-calcified, non-tortuous right coronary artery.A 3.5x12mm xience sierra stent delivery system (sds) was advanced without pre-dilatation, and the stent was deployed without issue.An unspecified 4x12mm nc balloon was used for post-dilatation at 18 atmospheres when the balloon ruptured.After the balloon was removed, the implanted stent appeared malapposed due to the balloon rupture, so a new guide wire and balloon were used to dilate the stent again.An unspecified 4.0mm stent was implanted elsewhere in the anatomy.There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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