The device history record (dhr) review confirmed that the device met all material, assembly and performance specifications.Analysis of the device revealed that the distal end was kinked and the distal tip was damaged/deformed.During functional evaluation, resistance was experienced during advancement of a 0.059¿ mandrel through the catheter shaft.The mandrel was unable to be advanced out of the catheter shaft distal end.The device dimension were found to be within specification.Information available indicated that the device was confirmed to be in good condition prior to use, the patient anatomy was moderately tortuous and a competitor device was also not able to be advanced into the same location leading to the patient being unable to be treated.Based on the information available, it is likely that the subject device sustained damage during the clinical procedure resulting in the inability to reach the target site.An assignable cause of operational context was assigned to this investigation.
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