(b)(6).This is 1 of 3 mdrs being submitted for patient identifier: (b)(6).Complaint conclusion: the coil was returned for analysis.As viewed through the sheath, the distal section of the coil and the dried blood pattern showed compression (snaking).Approximately the last two secondary windings off the ball tip are severely damaged.The proximal damage section shows snaking and buckling.The proximal end of the coil was received severely damaged.The evidence suggests that distal interference inside the microcatheter may have contributed to the resistance and the coil becoming stuck inside the microcatheter.However; the exact source of this interference cannot be determined.In addition; without the return of the echelon 10 microcatheter and the hemostatic valve used in the procedure; it cannot be determined if these components contributed to the complaint event.It should be noted that all three coils in this complaint (all different lot numbers) used in the same procedure have similar damage at the same location.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.
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