Cardiac_Prosthetic_Valves

Cardiac_Prosthetic_Valves - ARTIFICIAL HEART VALVES...

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ARTIFICIAL HEART  ARTIFICIAL HEART  VALVES VALVES Presented by: Presented by: BRIAN MCGEE BRIAN MCGEE NIVEDITA RAO NIVEDITA RAO ANSHUL SHAH ANSHUL SHAH Group 5 Group 5 BME 501 BME 501 Dr. HSIAI NOVEMBER 28, 2007 NOVEMBER 28, 2007
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BLOOD FLOWING THROUGH THE HEART Various parts of body Right Auricle Right Ventricle Lungs via Pulmonary Vein Tricuspid valve Pulmonary Valve IMPURE BLOOD Left Auricle via Pulmonary Artery PURE BLOOD Left Ventricle Mitral Valve Aorta Aortic valve Various parts of body
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STENOSIS A stenotic heart valve can't open  completely, so blood is pumped through a  smaller-than-normal opening.  A valve also may not be able to close  completely. This leads to regurgitation  (blood leaking back through the valve when it should be  closed).   A person can be born with an abnormal heart valve, a  type of congenital heart defect.  Also, a valve can become damaged by:    infections such as infective endocarditis.   rheumatic fever.   changes in valve structure in  old people.
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TYPES  OF  ARTIFICIAL HEART  VALVES 3 TYPES: CAGED BALL VALVES  :-    Proven to be durable but their centrally  occluding design results in a larger pressure drop across the valve and  higher turbulent stresses, distal to the valve. Their relatively large  profile increases the possibility of interference with anatomical 
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Cardiac_Prosthetic_Valves - ARTIFICIAL HEART VALVES...

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