The customer reported that the freedom driver exhibited abnormal noises while supporting a patient.The customer also reported that the patient was subsequently switched to the backup freedom driver.There was no reported adverse patient impact.The freedom driver was returned to syncardia for evaluation.Visual inspection of the exterior of the driver revealed no abnormalities.Visual inspection of the interior of the driver revealed a fractured housing boss, unretracted battery safety latch and loose hose connection clamp, fastening screw and lock washer, which were indicative of an impact shock to the driver.Review of the alarm history (eeprom) did not reveal any alarms that occurred while the driver was supporting the patient.The driver was functionally tested and passed all test acceptance criteria, which included normotensive and hypertensive settings, with no anomalies or alarms.The driver was tested for an additional 48 hours at normotensive settings and functioned as intended.The root cause for the reported noise was the loose components inside the driver, likely resulting from an impact shock to the driver.The driver was repaired and serviced and passed all final performance testing.The clinical staff at the hospital confirmed that all tah-t patients discharged to home with a freedom driver receive training on what to do in the event that the freedom driver is dropped or is subjected to an impact shock.In addition, the "freedom driver system guidebook for patients and caregivers" states, at section 4.2 - warnings: "if the freedom driver or any of the accessories are dropped, they must be brought back to the hospital for replacement." the reported issue posed a low risk to the patient because it did not prevent the freedom driver from performing its life sustaining functions.This issue will continue to be monitored and trended as part of the customer experience process.Syncardia has completed its evaluation of this complaint and is closing this file.
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