honeybug6853 honeybug6853

01-02-2018
Biology

contestada

How many bjork shiley valves have been implanted?

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cohvenant cohvenant

01-02-2018

The valve was co-invented by American engineer Donald Shiley and Swedish heart surgeon Viking Björk. Beginning in 1971, it has been used to replace aortic valves and mitral valves.

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