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.It is possible that limitations of the visual equipment and/or patient anatomy resulted in compromising the ability to visualize the balloon maker band; however this cannot be confirmed.The investigation determined a conclusive cause for the reported component missing marker cannot be determined.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 lesion in the moderately calcified, heavily tortuous circumflex and right coronary artery.A 2.5x8mm xience pro a stent delivery system (sds) was advanced, and it was noted that a stent marker was not visible in the anatomy.It could not be confirmed whether the marker was present on the device.The sds was removed, and an unspecified xience pro a stent was used 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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