The reported event of failure to advance lead in catheter was not confirmed.As received, a complete lead was returned in one piece for analysis.The lead was unable to evaluated with the catheter due to the inner coil clogged blood/tissue and the guide wire could not insert to the lead.The measured diameters of all the ring electrodes were within specification.S-curve height of the lead was measured within specification.Visual and x-ray examination did not find any anomaly on the lead.Electrical testing did not find any indication of conductor fractures or internal shorts.
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