...chip technology is quite advanced these days, yet motors in Artificial Human Hearts still fail... as for easier on the valves, there is a more humorous story as to my experiences during the same time I realized Engineers could, then did, improve artificial Human Heart valves, when I also realized the Mechanical Artificial Human Heart was possible... the Father, a Surgeon, of a school mate of mine (with an older Brother and Sister and younger Sister in the same school) mentioned my suggestion to his Father. His Father looked at me and asked, word-for-word, "Mechanical (Artificial Human Heart) ? Are you sure?", I quietly answered, "Yes.". Then he nodded slowly in agreement with me and quietly said, "Not yet... someday (definitely)". His Children, my schoolmates, Graduated from the same Medical School as their Father. I fell in love with your standard stethoscope (then, during the earliest 1970s, was approximately $200.00 USD) with rubber hoses, particularly the extremely high quality of the metals about- and over the drum... the flat membrane-like part you listen through, and the potential Medical Equipment applications for the durability of those composite metals and the membrane-like drum... I admired the precision of those components then, during the earliest 1970s, as my Maternal Grandmother had cataracts removed from her eyes with the then-new procedure of laser surgery. When I spoke with her on the telephone while she was in a Doctor's suite in the Hospital, I lost my breath for a few seconds... in those days, they completely removed the cataracts with lasers. My Grandmother never had complications! She lived until between 83- and 84 Years of Age. Many years later, during the 1980s, then with improvements after, the U.S.A. developed better antimicrobial materials than surgical steel for rods, then called pins, to support and-/or re-construct broken bones, and introduced antimicrobial Artificial Human Heart Valves they continue to improve... during the 1980s, the antimicrobial soft composite materials of the filters in the antimocrobial artifical Human Heart Valves for the blood to flow in- and out of the Heart through did not clog, and did not, and do not, fail.