(b)(4).The device was not returned for investigation.No return product evaluation could be completed.The device lot history record review indicated during lot release of manta lot, a single device exhibited a high collagen deployment force of the collagen deployment specification.No other non-conformities related to this lot, therefore, supporting the device met material, assembly, and performance specifications prior to shipment.Based on the information submitted, following an undisclosed procedure, a 14f manta was deployed for closure.Absent pulses were present post-closure, although the procedure outcome was reported as completed with this device.After multiple unsuccessful attempts to obtain further information for this investigation, the root cause of this occlusion cannot be determined due to the insufficient information submitted for investigative purposes.The manta instructions for use lists potential adverse events related to the deployment of vascular closure devices including ischemia of the leg or stenosis of the femoral artery.
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