Uci tecplot 36011/13/2022 ![]() ![]() ![]() Using Tecplot 360, he is able to visualize the data related to the flow passing through a valve and identify potential anomalies, clearing the way for the design and development specifically for their dynamic, bileaflet mitral bioprosthesis heart valve. In particular, Falahatpisheh has been evaluating bioprosthetic heart valves assembled in an artificial heart flow simulator to examine the transvalvular flow with the help of high-speed DPIV technique. By reducing the stress and subsequent calcification, researchers can improve the longevity of the valve. The calcification can lead to fatigue, tearing, and ultimately valve failure if the valve is not replaced. ![]() Heart valves tend to calcify around the tip potentially as a result of excessive stress. If researchers can figure out how to make them last longer, in most cases, they would be a better replacement option for patients. They can create close to natural flows compared to mechanical heart valves. Most research today is focused on bioprosthetic heart valves because they cause fewer side effects. Mechanical valves are durable and can last a lifetime, but can cause blood clots with life-threatening consequences, and therefore require patients to take blood thinners throughout their lives. Biological valves reduce the risk of blood clots, but wear out and usually require replacement within 10 to 15 years in older patients, much sooner in younger patients. There are two types of artificial valves available today: mechanical or prosthetic valves, like the Starr-Edwards device and biological valves made from tissue material, also known as bioprosthetic heart valves. Making Safer, More Efficient Prosthetic Heart Valves The result of this exciting research is to appear in the Journal of Heart Valve Disease. This is mainly due to the dynamic annulus made of Nitinol which adapts itself to the motion of the cardiac base in the heart cycle. In addition, stress at the tip of the leaflets, which can cause leaflet damage is much less than the valves with rigid annulus. With the help of Tecplot 360 CFD visualization software to view and analyze his Digital Particle Image Velocimetry (DPIV) data, Falahatpisheh is helping develop the first bileaflet bioprosthetic mitral valve with dynamic saddle annulus designed to mimic the natural mitral valve.įlow features such as vortices developed through this valve are very similar to its natural counterpart. candidate at Kheradvar’s lab (KLAB) at the University of California, Irvine, is at the forefront of pioneering research in the area of artificial heart valve development to improve bioprosthetic heart valves and the quality of life of patients. However, complications can occur due to the result of the device’s failure, structural valve deterioration caused by infection, the valve’s design or materials, or host tissue overgrowth.Īhmad Falahatpisheh a Ph.D. Patients who underwent heart valve replacement experience a better quality of life. Today, more 250,000 patients worldwide receive prosthetic heart valves annually, and that number is growing. More than 50 years later, lives of millions of patients have been saved or improved by technological advancements based on the work of pioneers like Dr. Albert Starr successfully implanted the world's first prosthetic heart valve, a mechanical device that he co-invented with M. ![]()
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