Lots. The old gen, the only approved one, is actually the continuation of the Jarvik 7 made famous by the Barney Clark case. They've been making and using it all this time. It's now called Syncardia. It's pneumatic and the patients have to carry around a bit pneumatic driver that makes quite a bit of noise during every heartbeat. Patients have large air lines running in and out of their chest to carry the air in and out to drive the diaphragm based pump. It works, bit is not ideal in many ways.

I'm not sure why this post is flagged and dead. This seem like a genuine and constructive question.