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A1-a4: there was no patient involved.Section g3: there was no patient involved in this event.The pma# provided is associated with most recent approval.Manufacturer¿s investigation conclusion: the reported event of a red battery alarm was confirmed via analysis of the returned power module backup battery.Upon installing the returned power module backup battery in a known working test power module, a yellow wrench advisory and red battery alarm activated.Ppe evaluation of the returned backup battery revealed that the battery had an unloaded voltage of 11.84 v.The battery was installed in a known working test power module, and upon powering on the system a yellow wrench advisory and red battery alarm activated.The battery was then manually charged to approximately 12.24 v, and the battery was reconnected to the test power module; however, the alarms did not resolve.It was determined that the battery was unable to support the system.Further evaluation was not performed due to the internal chemical hazard.From the additional information, the power module backup battery was replaced, and the unit became fully operational.A root cause for the reported event could not be determined through this analysis.Battery inspection data was reviewed for the 12v sla backup battery, serial number (b)(6), revealing that the battery passed all inspection testing.Heartmate 3 instructions for use (rev.G) section 7 ¿ ¿alarms and troubleshooting¿ and heartmate power module instructions for use (rev.B) under section 5.0 ¿power module (pm) alarm conditions¿ cover all power module alarms and the actions to take when an alarm occurs.Heartmate power module instructions for use (rev.B) under section ¿precautions¿.Section 4.0 ¿power module (pm) backup power¿ describes the usage of the backup battery and the power module visual indicators used to determine the status of the backup battery.Heartmate 3 patient handbook (rev.G) section 6 ¿ ¿caring for the equipment¿ explains how to care for and clean all equipment, including the power module.Additionally, section 10 ¿ ¿safety checklists¿, provides checklists to assist the patient in performing routine maintenance of the heartmate 3 lvad equipment, including the power module.Heartmate 3 instructions for use (rev.G) section 3 "powering the system" and heartmate power module instructions for use (rev.B) under "introduction" explain how to set up the power module for use, including how to install the power module backup battery, and how to use the power module.The heartmate 3 patient handbook (rev.G) and the heartmate 3 instructions for use (rev.G) caution the user to call their hospital contacts if they think, for any reason, any portion of their equipment is not functioning as usual, is broken, or they are uncomfortable with the operation of the equipment.No further information was provided.The manufacturer is closing the file on this event.
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