Narrative of event, as described by zeon (market authorization holder in (b)(4)): "ffr was tried for rxa#2-3.Dpr was tried then.During doctor's operation, optowire was strayed into rca branch.The doctor tried to push the ow but unfortunately had stuck.Since the coil was stretched, the doctor considered that withdrawing wire will be the trouble because it will reach to ao.The doctor performed emergency pci to cut the stuck ow by rotablator then pressed the fragment to the coronary wall by stent.The doctor considered that this was caused by the procedure, not by the product's problem.".Investigation results by zeon, as described by zeon: "coil was stretched.However, no corrosion observed.Returned material: ow, no gf connector, no foic.Corewire was fractured at 16mm position from distal end.".Patient conditions that could have impacted the procedure: moderate calcification and moderate tortuousness of vessels.Health status of the patient after the procedure: confirmed to be stable.
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