Björk–Shiley valve

Björk–Shiley valve
Discontinued tilting-disc artificial heart valve
Björk–Shiley valve, as depicted in patent #US003824629
SpecialtyCardiothoracic surgery
UsesTo replace malfunctioning aortic and mitral valves
ComplicationsFractures in a component leading to catastrophic failure and sudden death
ApproachOpen-heart surgery

The Björk–Shiley valve is a mechanical artificial heart valve. 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. It was the first successful tilting-disc valve. It was manufactured first by Shiley Laboratories, then later by Pfizer after that company purchased Shiley. One model of the Björk–Shiley valve became the subject of a famous lawsuit and recall after it was shown to malfunction.

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