(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.The nc traveler is currently not commercially available in the us; however, it is similar to a device sold in the u.S.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 from this lot.It should be noted that the coronary dilatation catheters (cdc), nc traveler rx, global, costa rica, instruction for use states: with 4.5 mm and 5.0 mm balloon dilatation catheters, some increased resistance may be noted upon insertion or withdrawal into or out of the guiding catheter.The investigation was unable to determine a conclusive cause for the reported difficulties.There is no indication of a product quality issue with respects to the design, manufacture, or labeling of the device.
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It was reported that the procedure was to treat a mildly tortuous, heavily calcified, eccentric, de novo, 90% stenosed lesion in the proximal right coronary artery.A non-abbott stent was deployed.The lesion was post-dilated with the nc traveler 4.50 x 8 mm at 18 atmospheres twice and then the nc traveler balloon was deflated.An attempt was made to remove the nc traveler but it got entangled with the guiding catheter.The entire system was removed from the anatomy and the procedure was completed.The balloon deflated flat and was not properly rewrapped.There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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