(b)(4).The device was not returned for evaluation.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 similar incidents and/or complaints from this lot.It should be noted the coronary dilatation catheters (cdc), nc trek rx, global, instruction for use (ifu) states: submerge the balloon in sterile heparinized normal saline during balloon preparation, to activate the coating.In this case, it is unknown if the ifu violation caused or contributed to the reported complaint.Additionally, the account reported that the device was prepped inside the anatomy.It should be noted that the coronary dilatation catheters (cdc), nc trek rx, global, ifu specifies: all air must be removed from the balloon and displaced with contrast prior to inserting into the body, otherwise, complications may occur.In this case, it is unknown if the ifu violations caused or contributed to the reported complaint.The investigation was unable to determine a conclusive cause for the reported balloon rupture.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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It was reported that the procedure was performed to treat a lesion in the moderately tortuous, 85% stenosed mid left anterior descending artery.A 4x12mm nc trek balloon dilatation catheter (bdc) was not soaked prior to use and was not prepped outside the anatomy prior to use.The bdc was advanced without resistance, and the balloon ruptured during the first inflation at 18 atmospheres.The device was removed, and it was confirmed that no portion of the device remains in the anatomy.A same sized nc trek balloon 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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