To reduce any health risks, possible health problems, and absolutely entwine her with the Bane systems, as well as to surrender even more of her humanity to her new existence to Lumina, Alexandra’s heart is removed and replaced with an artificial device.
Function
The device is under full control by Lumina, unable to function without her, and it performs as a perfect heart, but also injects the oxygen from Alexandra’s air tank into her blood. The remaining CO2 coming in from the bloodstream is removed and sent to the attached chemical engine below this artificial heart, where it is recycled into oxygen and glucose.
This artificial heart profoundly symbolizes how Lumina has become the very core of Alexandra’s existence, as the AI is now embedded within Alexandra’s womb, and has quite literally become her heart that only functions through Lumina’s systems.
The synthetic heart pumps differently than a human one. It pumps in a steady, constant stream, instead of pulses, leaving Alexandra without even the tiniest hint of a human heartbeat. This leaves a very odd sensation, as no pulse of her blood is actually present any more in Alexandra’s body. With the combination of no pulse, and not breathing, as well as being unable to make any sounds with her missing vocal cords and sealed nose, Alexandra becomes a completely silent and still Bane.