Year of Invention: 1981
What Is It? A mechanical device to replace the human heart
Who Invented It? Robert Jarvik (in Ogden, Utah)
We live only so long as our hearts continue to beat. When our hearts stop, we die. Heart disease is the number one killer in this country. Mechanical heart replacements could stop that killer in its tracks.
Heart transplants require a donor. One person dies so that another can live. Not so with a mechanical heart. An endless supply could be manufactured, sitting on hospital shelves, waiting for the need to arise.
Open-heart surgery began in the 1950s to repair defective heart valves. These operations were extremely risky, expensive, and used sparingly.
Successful heart transplant operations began in the 1970s. But donors for these operations were few and far between. Far more often, the patient died before a donor appeared.
In 1952, Soviet doctors implanted a plastic heart in a dog. It survived for 45 minutes. In 1958, Willem Kolff implanted a two-chamber, polyvinyl chloride heart in a dog. That animal survived for 90 minutes. Kolff then developed a silicon and rubber heart pump for a calf in 1965. That animal survived for over six hours.
American surgeon Denton Cooley was the first to implant an artificial heart in a human’ s body. In 1969 he implanted a plastic heart as a temporary measure while waiting for a donor heart. The patient survived for three days on the plastic heart before heart replacement surgery. Even after so short a time, the artificial heart showed signs of rejection wear and pitting.
By 1975, groups at a dozen university medical centers around the country were working on an artificial heart. One of these centers was at the University of Utah. That team was headed by 29-year-old Dr. Robert Jarvik.
Questia, a part of Gale, Cengage Learning. www.questia.com
Publication information: Book title: 100 Greatest Science Inventions of All Time. Contributors: Kendall Haven - Editor. Publisher: Libraries Unlimited. Place of publication: Westport, CT. Publication year: 2006. Page number: 294.
This material is protected by copyright and, with the exception of fair use, may not be further copied, distributed or transmitted in any form or by any means.