Reportable based on device analysis complete on 09 nov 2018.It was reported that crossing difficulties were encountered.The stenosed target lesion was located in the below the knee (btk).An unknown guidewire was advanced to the target lesion and pre-dilated with 2.5mm x 40mm x 146cm coyote es balloon catheter with a combination of an unknown guidezilla 2 pv guide extension catheter as a back up to strengthen the balloon but still failed to cross the lesion.The procedure was completed with a non bsc product.No patient serious injury or adverse event were reported.However, returned device analysis revealed balloon pinhole.The outer shaft, inner shaft, balloon and tip were microscopically examined.There are numerous hypotube and shaft kinks.The inner shaft is buckled in numerous locations.Microscopic examination revealed that the balloon has a pinhole at the distal markerband.Inspection of the remainder of the device presented no other damage or irregularities.
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