Donald Shiley is one of the co-inventors of Pfizer's Bjork-Shiley heart valve. Pfizer Incorporated ( is a major Pharmaceutical company, which ranks number one in the world in sales The Bjork-Shiley valve is a mechanical Heart valve Prosthesis. In Anatomy, the heart valves are Valves in the Heart that maintain the unidirectional flow of blood by opening and closing depending on the difference He is a 1957 alumnus of the University of Portland, where he studied engineering. The University of Portland (UP is a private Roman Catholic university located in Portland Oregon. Engineering is the Discipline and Profession of applying technical and scientific Knowledge and
Shiley began working at Edwards Laboratories, located in Orange County, south of Los Angeles, the first manufacturer of artificial heart-valves. Orange County is a county in Southern California, United States. Los Angeles (lɑˈsændʒələs los ˈaŋxeles in Spanish) is the largest City in the state of California and the American West
Later he established his own company, Shiley Laboratories, in the same area. His first valve was developed together with the American heart-surgeon Kay, and became the first disc heart-valve. Compared with the Edwards valve, which had the shape of a little ball, the advantage of the disc valve was to need much less space within the heart once implanted.
Some years later, Shiley improved his design in cooperation with the Swedish heart-surgeon Viking Björk, which led to the first tilting disc heart-valve, resulting in a much better flow of blood when passing the valve. Viking Bjork (born 1919 is a Swedish cardiac surgeon In 1968 he collaborated with American engineer Donald Shiley to develop the first "monostrut tilting Blood is a specialized Bodily fluid that delivers necessary substances to the body's cells such as nutrients and oxygen—and transports Waste products
Other products were added to the manufacturing programm of Shiley, especially tracheal and endotracheal tubes for respiration after surgery in the mouth or throat, and during anesthesia. The traceartes, or windpipe, is a tube that has an inner diameter of about 20-25 mm and a length of about 10-16 cm in humans Surgery (from the χειρουργική cheirourgikē, via chirurgiae meaning "hand work" is a medical specialty that uses operative manual and instrumental Anesthesia, or anaesthesia (see spelling differences; from Greek grc αν- an-, "without" and grc αἲσθησις
The Björk-Shiley heart-valve underwent in the following years several improvements, which consisted primarily in the degree of opening of the disc, thus reducing turbulence in the blood stream. In Fluid dynamics, turbulence or turbulent flow is a fluid regime characterized by chaotic Stochastic property changes
Shiley lost his wife, Pat, when she was middle-aged. She, having been a very active woman, had helped Shiley to stay enthusiastic about his work and his company, and was a great loss to him. Some years later, Shiley decided to sell his company to Pfizer, and retired. Pfizer Incorporated ( is a major Pharmaceutical company, which ranks number one in the world in sales
On March 19th, 2007, the University of Portland announced a $12 million grant from Shiley and his wife. The United States dollar ( sign: $; code: USD) is the unit of Currency of the United States; it has also been Grants are funds dispersed by one party (Grant Makers often a Government Department Corporation Foundation or Trust to a recipient, often (but not always The grant was for renovating the University's School of Engineering. The grant is the largest the University has ever received. [1]
This article about an engineer, inventor or industrial designer is a stub. An engineer is a person professionally engaged in a field of Engineering. An inventor is a person who creates or discovers a new method form device or other useful means Industrial design is an Applied art whereby the Aesthetics and Usability of mass-produced products may be improved for marketability and You can help Wikipedia by expanding it. References
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