Patent ID: 6315793
Filing Date: 2001-11-13
Classification: A61F

Abstract:
A prosthetic venous valve which comprisesa generally tubular housing including an upstream section made of rigid material and a separate downstream section,said upstream section comprising a rigid tubular body which provides a flow path for blood having an open entrance passageway and enclosing a first central region,said downstream section comprising a rigid tubular body which provides a flow path for blood having an open discharge passageway and enclosing a second central region,a separate occluder proportioned to move between said central regions,said upstream section being formed with a seat in its interior surface in said first central region for sealing contact with said occluder to prevent blood flow upstream therepast and through said entrance region,said occluder reciprocating between an open position adjacent said second central region and a closed position in contact with said seat in said first central region, andsaid second central region of said downstream section having an inner surface formed to prevent the escape of said occluder downstream therethrough, said occluder and said inner surface being shaped so that when said occluder is in said open position a path remains open to said discharge passageway,whereby this separate construction allows said upstream and downstream sections to be operatively implanted in a patient spaced apart from each other.