Clarence Dennis, Date of Birth, Place of Birth, Date of Death
TweetClarence Dennis
American cardiothoracic surgeon
Date of Birth: 16-Jun-1909
Place of Birth: Saint Paul, Minnesota, United States
Date of Death: 11-Jul-2005
Profession: surgeon
Nationality: United States
Zodiac Sign: Gemini 
About Clarence Dennis
- Clarence Dennis (June 16, 1909 – July 11, 2005) was an American cardiothoracic surgeon best known for his work in pioneering cardiopulmonary bypass (CPB).
- He had invented one of the first heart-lung bypass machines, and in 1951 he became the first to use such a device during an open-heart operation.
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