Heart Valves

Some articles on heart valves, valve, heart valve, valves, heart:

Biomaterial - Applications - Heart Valves
... In the United States, 45% of the 250,000 valve replacement procedures performed annually involve a mechanical valve implant ... The most widely used valve is a bileaflet disc heart valve, or St ... Jude valve ...
Artificial Heart Valve - Mechanical Valves - Types of Mechanical Heart Valves
... There are three major types of mechanical valves - caged-ball, tilting-disk and bileaflet - with many modifications on these designs ... The first artificial heart valve was the caged-ball, which utilizes a metal cage to house a silicone elastomer ball ... When blood pressure in the chamber of the heart exceeds that of the pressure on the outside of the chamber the ball is pushed against the cage and allows blood to flow ...
Artificial Heart Valve
... An artificial heart valve is a device implanted in the heart of a patient with heart valvular disease ... When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve ... This requires open-heart surgery ...
ATS Medical
... goal was to advance the performance standard of artificial heart valves, specifically mechanical heart valves ... The result was incorporating a pivot mechanism consisting of protruding spheres on which the valve’s leaflets pivot to open and close ... cavity created by the pivot of all other bileaflet valves and to improve blood flow through the valve, minimizing potential for blood clot formation ...

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