It was impossible to push the micrusphere 10 platinum microcoil 3 mm x 5.4 cm (sph10030020/ f66814) forward.A boston 6f microcatheter (details unknown) was used.It was noted during analysis that the coil was returned stretched.The coil was returned stretched.The evidence suggests that interference contributed to the coil not being able to be pushed forward.The source and location of this interference cannot be determined.It is unknown if the interference was of a fixed or detached nature.In addition, without the return of the microcatheter used in the procedure, it cannot be determined if this component contributed to the complaint event.Based on the information and the analysis, the event ¿coil unraveled/stretched¿ was confirmed and the event ¿dcs impeded¿ could not be confirmed.No corrective actions will be taken at this time.This mdr is being submitted as part of a retrospective review as the result of a recent fda audit and with accordance to the requirements of code of federal regulations ¿ 21 cfr part 803, medical device reporting.Concomitant medical products and therapy dates: boston 6f microcatheter (details unknown).
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