Livanova (b)(4) received a report that during a procedure an error code associated to a shaft angle encoder defective was displayed on the control panel of a centrifugal pump system with tubing clamp.This impacted the pump speed which could no longer be fully controlled by turning the knob on the control panel.Thus, the user hand-cranked the pump for about 30 minutes.Reportedly, during hand-crank, the ecmo circuit was being primed as a means to switch back over to machine support and possibly transport to the unit.
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