The customer, a syncardia certified hospital, reported that the companion 2 driver exhibited an unusual noise while supporting a patient.There was no reported adverse patient impact.The customer also reported that the patient was subsequently switched to a backup driver.
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Alarm history review reported the patient file was reviewed; no alarms were found present in the file.No external abnormalities observed during external inspection.No internal abnormalities observed during internal inspection.The driver passed incoming inspection and final assembly functional test.During this test no "funny noise" was observed from the driver.In an attempt to reproduce the noise observed by the customer, the driver was setup for an observation run.This observation run lasted approximately 96 hours.During this observation run no abnormal noise, alarms, or anomalies were observed.Failure investigation could neither confirm nor replicate the customer reported "funny, squeaking" noise.No damage or abnormalities were observed.Driver passed all functional testing including observation run testing.This issue will be monitored and trended as part of the customer complaint process.Syncardia has completed its evaluation and is closing this file.If new or additional information is received in the future, syncardia will file a follow-up mdr.(b)(4).Follow-up report 1.
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