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See media help. Valvular heart disease is any cardiovascular disease process involving one or more of the four valves of the heart (the aortic and mitral valves on the left side of heart and the pulmonic and tricuspid valves on the right side of heart). These conditions occur largely as a consequence of aging, [1] but may also be the result of ...
A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [1] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various ...
A duckbill valve is a check valve, usually manufactured from rubber or synthetic elastomer, and has two or more flaps, usually shaped like the beak of a duck. [1] It is commonly used in medical applications to prevent contamination due to backflow. A cross-section diagram of a Duckbill valve. The upper pipe depicts normal flow of fluid, while ...
Valve replacement. Valve replacement. ICD-9-CM. V43.3. [edit on Wikidata] Valve replacement surgery is the replacement of one or more of the heart valves with either an artificial heart valve or a bioprosthesis (homograft from human tissue or xenograft e.g. from pig). It is an alternative to valve repair.
Frequency. 2% of people over 65 (developed world) [1] Aortic stenosis (AS or AoS) is the narrowing of the exit of the left ventricle of the heart (where the aorta begins), such that problems result. [1] It may occur at the aortic valve as well as above and below this level. [1] It typically gets worse over time. [1]
Traditional. Reed valves, normally a leather flap covering a hole, are amongst the earliest form of automatic flow control for liquids and gases. They have been used for thousands of years in water pumps and for hundreds of years in bellows for high-temperature forges and musical instruments such as church organs and accordions.
Mitral valve repair is a cardiac surgery procedure performed by cardiac surgeons to treat stenosis (narrowing) or regurgitation (leakage) of the mitral valve. The mitral valve is the "inflow valve" for the left side of the heart. Blood flows from the lungs, where it picks up oxygen, through the pulmonary veins, to the left atrium of the heart.
Ford notified NHTSA of the recall on Aug. 23. FORD CANCELS PLANS FOR ELECTRIC THREE-ROW SUV "An engine intake valve that fails may lead to catastrophic engine damage resulting in a loss of motive ...