An artificial heart is a medical device designed to replace a failing human heart. It helps pump blood throughout the body, ensuring that vital organs receive the oxygen and nutrients they need. Artificial hearts can be temporary solutions while patients wait for a heart transplant or serve as permanent replacements in some cases. These devices can be powered by batteries or connected to a power source, and they come in various designs. The most well-known artificial heart is the Jarvik 7, developed by Dr. Robert Jarvik in the 1980s. Advances in technology continue to improve their functionality and compatibility with the human body.