The device history record review confirms that the device met all material, assembly and performance specifications.Visual examination of the returned device revealed that dried blood and procedural fluids within the introducer sheath.The introducer sheath was observed to be kinked at 11cm from the distal end likely due to handling damages that limited the performance of the device during procedure.It was also observed that the main coil was physically detached/ separated at the detachment area.The main coil was not returned.During functional testing, the introducer sheath was flushed and traces of blood exited.The delivery wire was advanced through the introducer sheath and resistance was experienced.It is most likely that the friction and observed premature detachment of the main coil were due to some procedural/anatomical factors encountered during use.Therefore, an assignable cause of operational context has been assigned to the friction and observed premature detachment of the main coil.
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