The freedom driver was returned to syncardia for evaluation.Visual inspection of the driver revealed split and broken housings, broken top/left housing boss, raised insert and fractured bottom/right housing boss, impact damage to main printed circuit board assembly (pcba) and primary motor, broken bottom piston cylinder assembly (pca) pressure sensor connector, bent leads on u22 pressure sensor on main pcba, broken u21 pressure sensor on main pcba, and disconnected ribbon cable from speaker j2 connector.The customer-reported issue of "heart frequency" going up and down could not be confirmed as the driver exhibited a steady beat rate throughout investigation testing.The customer-reported issue of "different pump noises" was confirmed.The broken bottom pca pressure sensor connector was leaking air, and this noise was heard during investigation testing.External and internal visual inspections indicated that the driver was subjected to severe impact shock and rough handling, which was most likely the root cause for the broken bottom pca pressure sensor connector.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.(b)(4) follow-up report 1.
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The customer, a syncardia certified hospital, reported that the freedom driver exhibited a beat rate drift and unusual noise while supporting a patient.The customer also reported that the patient was switched to a back-up freedom driver without any reported adverse patient impact.
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