Velislav Krastev Blog

https://en.wikipedia.org/wiki/Artificial_heart
An artificial heart is an artificial organ device that replaces the heart. Artificial hearts are typically used to bridge the time to complete heart transplantation surgery, but research is ongoing to develop a device that could permanently replace the heart in the case that a heart transplant (from a deceased human or, experimentally, from a deceased genetically engineered pig) is unavailable or not viable. As of December 2023, there are two commercially available full artificial heart devices; in both cases, they are for temporary use, of less than a year, for total heart failure patients awaiting a human heart to be transplanted into their bodies.

So here the science is still not so much ahead that we have a heart for more than a year. Here is a lot to be done untill we achieve full functional heart that replaces the real one permanently.