The customer reported that the patient was being supported by a css console.Upon completing a successful companion 2 driver system checkout, the patient was switched from the css console to a companion 2 driver.The customer reported that after the patient was switched to the companion 2 driver, the patient complained he didn't feel well.The custom also reported the companion 2 driver exhibited a "system malfunction" alarm.The patient was switched back to the css console without adverse impact.This alleged failure mode poses a low risk to the patient because it did not prevent the companion 2 driver from performing its life-sustaining functions.An investigation will be conducted by syncardia, and the results will be provided in a supplemental mdr.
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