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This device is used for treatment not diagnosis.The ventricular assist system is indicated for use as a bridge to cardiac transplantation and destination therapy in patients who are at risk of death from refractory end-stage left ventricular heart failure.The system is designed for in-hospital and out-of-hospital settings.Product event summary: the batteries were not returned for evaluation.Analysis of the log file report revealed an abnormally high cycle count recorded for batteries.The abnormal cycle count is indicative of a communication error between the battery and controller that resulted in spurious write operations of the cycle count.As a result, the reported event was confirmed.There is no evidence that the lubrication servicing was performed on the reported devices.The most likely root cause of the reported event can be attributed to a communication error between the controller and batteries.Possible root causes of the reported communication error can be attributed to momentary disconnections on the communication pins of the controller, the controller not receiving responses from the battery, and/or due to the packet error checking method detecting bit errors.Additional products: heartware ventricular assist system ¿ battery.Model #: 1650, catalog #: 1650, expiration date: 2017-03-31, serial#: (b)(4), udi #: (b)(4).No dev rtn to mfr? no.Mfg date:2016-03-31.Patient code(s): (b)(4), device code(s): (b)(4), fda method code(s): (b)(4), fda results code(s): (b)(4), fda conclusion code(s): (b)(4).If information is provided in the future, a supplemental report will be issued.
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