Correction: the device is not a transplant.
It is instead of a transplant. Sorry about that.
I worked with a guy who had one installed on two different occasions before getting his transplant. Before each meeting, he would brief people that because he didn’t have a pulse, not to do CPR. He said that it took him a while to learn to stand up because the device provided a constant flow, pressure that can’t take into account different physical changes.