It was reported that the procedure was to treat a highly calcified lesion in the marginal circumflex coronary artery.While attempting to insert a 2.25x15 mm xience xpedition stent delivery system (sds) into an unspecified 6 french guide catheter, the stent struts flared due to interaction with the guide catheter and the sds was removed.The sds did not enter the patient anatomy.While attempting to insert a new 2.50x23 mm xience xpedition sds into an unspecified 6 french guiding catheter, the shaft kinked and separated.The sds did not enter the patient anatomy.While attempting to insert a new 2.25x12 mm xience xpedition sds into an unspecified 6 french guide catheter, the stent struts flared due to interaction with the guide catheter and the sds was removed.The sds did not enter the patient anatomy.A new unspecified 7 french guide catheter was used and the lesion was ultimately treated with 2 new xience xpedition stents.There was no adverse patient effect.There was no clinically significant delay in the procedure.No additional information was provided.
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(b)(4).Evaluation summary: the device was returned for analysis.The shaft separation was able to be confirmed.The kink was unable to be confirmed; however, it is likely that the shaft separated at the kinked location.The difficulty inserting the stent delivery system into the guiding catheter could not be replicated in a testing environment due to the condition of the returned device.Based on a visual and dimensional inspection of the returned device, there is no indication of a product deficiency.A review of the lot history record revealed no non-conformances that would have contributed to the reported event.A query/review of the electronic complaint database revealed no other similar incidents reported for difficult to insert into the guiding catheter, kink, or shaft separations from this lot.Based on the reviewed information, no product deficiency was identified.
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