There was no patient involvement.Through follow-up communication with the customer, livanova was able to gather additional information about the event.The customer stated that the caster wheels fell off the bottom of the unit as the perfusionist pushed the device over a metal plate in the hallway, which caused the front end to lift off and the casters to drop down.When the weight of the machine was placed back onto the wheels, the casters bent at an angle and when the device was pushed forward, the wheels came completely off and the device tipped over.The iv pole hit the perfusionist in the head and a visit to the er was required.However, the customer reported that the injury was not serious.The device was inspected by the facility and it was discovered that the set screw that holds the wheel on had worked its way loose over time and fell out.There was no other damage to the unit, and the set screws have been replaced.A livanova field service representative was dispatched to the facility to investigate.The rear casters were inspected to confirm that they were secure and no issues were noted.Functional testing was performed without issue and the device was returned to service.Review of the complaint history did not point out any similar issue even on machine after prolonged use over years.This issue was determined to be caused by unusual wear of the device.However, it was an isolated case.If any additional information pertinent to the reported event is received, it will be provided in a supplemental report.
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