Device evaluated by mfr., eval summary attached, method codes, result codes, conclusion codes updated.Device evaluated by manufacturer: the device was returned for analysis.Returned product consisted of the rotalink plus device.The advancer unit and burr unit were received attached together as a single unit.The advancer knob was received tightened in a backward position.The advancer, sheath, coil, and burr were microscopically and visually inspected.There was blood on the advancer unit housing.There was what appeared to be dried/crystalized saline and white fibrous material on the burr and coil; when received.There was no portion wire on the device or received with this device.The saline at the end of the burr was moved aside and the annulus was noticed to be damaged/not rounded.It is probable that the rotating burr came into contact with the guidewire during the procedure leading to the damaged annulus.Inspection of the remainder of the device, apart from the observed damage, revealed no other damage or irregularities.The manufacturing batch record review confirmed that the device met all material, assembly and performance specifications.The most probable root cause is operational context as device performance was limited due to anatomical procedural factors.(b)(4).
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