METHODS AND SYSTEMS FOR REDUCING PARAVALVULAR LEAKAGE IN HEART VALVES

摘要

A replacement valve comprises a valve body having an inflow end, an outfl ow end, and a valve support structure, and a valve cuff surrounding the infl ow end of the valve body. The valve support structure surrounds the valve bo dy, and the valve cuff is coupled to the valve support structure. The valve cuff includes a skirt portion and at least one flange coupled to and protrud ing from the skirt portion, the at least one flange forming a seal around th e inflow end of the valve body.