The reported issues involve the following syncardia temporary total artificial heart (tah-t) system components and are reported under two separate medical device reports: companion 2 driver s/n (b)(4) (mfr report # 3003761017-2015-00291) and companion 2 driver s/n (b)(4) (mfr report # 3003761017-2015-00382).The customer reported that on september (b)(6) 2015, the patient was found deceased in his assisted-living facility apartment with the companion drivelines disconnected from the companion 2 driver in his hand.The customer reported that two companion 2 drivers, s/n (b)(4), were assigned to the patient at the time of the customer reported event.The customer reported that companion 2 driver s/n (b)(4) was in use at the time of the reported event.The patient file was copied and reviewed.Analysis of the data determined that driver s/n (b)(4) was not supporting the patient, driver s/n (b)(4) was the backup driver and not the primary driver as reported by the customer.Driver s/n (b)(4) was the primary driver at the time of the customer reported event.This was determined by comparing the cardiac data / alarm history from the drivers that were assigned to the patient at the time of the customer reported event.Visual inspection of the driver's "as received" condition revealed no anomalies.The driver in "as received" condition passed all required functional and performance testing and functioned as intended including the proper annunciation of audible alarms and presentation of visual indicators.Based on the investigation results and review of the electronic patient file at the time of the customer reported issue, the driver functioned as intended, and there was no evidence of a device malfunction.The companion 2 driver s/n (b)(4) was serviced and met all functional and performance testing before being released to finished goods.Syncardia has completed its evaluation of this complaint and is closing this file.
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