There was no patient involvement.Livanova (b)(4) manufactures the centrifugal pump system with tubing clamp.The incident occurred in (b)(6).According to the field service technician who was dispatched to the customer's facility, the magnets on the drive were probably misaligned.This deviation can cause both the noise and the not constant revolution flow, as described by the customer.The most likely root cause of the reported issue are defective magnets.Taking into account the manufacturing year of the drive unit (2015), it cannot be ruled out that wear of the components may have contributed to the identified deviation.If any additional information pertinent to the reported event is received, it will be provided in a supplemental report.
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