5 ms·Yep, this has been 5 years away for the past 20 years.by quasarj 3y agoYep, this has been 5 years away for the past 20 years.DennisP 3y agoWhat hasn't existed for the past 20 years: an artificial kidney device that works in pigs for at least a week.tomcam 3y agoI literally read about that, or something very like it, in Popular Science about 50 years ago. They expected it to be workable in about 5 years…