One controller was returned for evaluation.Various analyses were conducted and reviewed in order to evaluate the performance of the device in relation to the reported event.The reported event was confirmed via visual inspection.Analysis of the device revealed that the device failed to meet specifications; the device failed visual inspection due to damage of the controller display.The confirmed malfunction is related to the reported event.The most likely root cause of the failure is contact of the controller with a hard surface, which likely contributed to the event.This device is used for treatment not diagnosis.The ventricular assist system is indicated for use as a bridge to cardiac transplantation 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.Per the instructions for use (ifu): always have a backup controller handy and, whenever possible, a care giver nearby when changing power sources or controllers.Be watchful for unusual changes in power or flow alarms for a period of time following equipment changes.Patients are instructed to always keep a spare controller available at all times.The patient manual includes instructions on care of the equipment and warns that damaged equipment should be reported to your vad coordinator and inspected.Heartware will submit a supplemental report when new facts arises which materially alters information submitted in a previous mdr report.
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