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2. Artificial heart valve - Wikipedia

   en.wikipedia.org/wiki/Artificial_heart_valve

   The first artificial heart valve was the caged ball valve, a type of ball check valve, in which a ball is housed inside a cage. When the heart contracts and the blood pressure in the chamber of the heart exceeds the pressure on the outside of the chamber, the ball is pushed against the cage and allows blood to flow.

3. Björk–Shiley valve - Wikipedia

   en.wikipedia.org/wiki/Björk–Shiley_valve

   Björk–Shiley valve, as depicted in patent #US003824629. 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 ...

4. Charles A. Hufnagel - Wikipedia

   en.wikipedia.org/wiki/Charles_A._Hufnagel

   Hufnagel Artificial Heart Valve in the collection of the National Museum of Health and Medicine. Charles A. Hufnagel, M.D. (August 15, 1916 – May 31, 1989) was an American surgeon who invented the first artificial heart valve in the early 1950s. Hufnagel was born in Louisville, Kentucky, and reared in Richmond, Indiana. His father was also a ...

5. Aortic valve - Wikipedia

   en.wikipedia.org/wiki/Aortic_valve

   There are two basic types of artificial heart valve: mechanical and tissue. Mechanical valves are made of metal and have evolved over time ("ball and cage", "bileaflet"). Mechanical valves require lifelong anticoagulation to avoid forming blood clots on the valves that can lead to embolism often resulting in stroke. These tend to be favored in ...

6. Hancock Aortic Tissue Valve - Wikipedia

   en.wikipedia.org/wiki/Hancock_Aortic_Tissue_Valve

   Prosthetic heart valves, including the Hancock Aortic Tissue Valve, are not without drawbacks. Structural degradation is a risk, potentially necessitating reoperation. [ 13 ] [ 3 ] Studies have indicated the need for ongoing research and improvement in bioprosthetic valve technology to address such concerns [ 13 ]

7. Abbott's heart valve repair device gains US FDA approval - AOL

   www.aol.com/news/abbotts-heart-valve-repair...

   By Puyaan Singh (Reuters) -Abbott Laboratories said on Tuesday the U.S. FDA has approved its heart valve repair device for patients with a potentially fatal heart disease, just months after rival ...