US Patent 11925549 Heart valve with gathered sealing region

A valve for endovascular heart valve repair that provides improved sealing of the valve against the native wall. The valve assembly has a sealing region at a distal end of the valve. The sealing region having a delivery position and a sealing position, wherein in the delivery position, the sealing region has a first length, and in the sealing position, the sealing region has a second length less than the first length and a thickness in the sealing position is greater in the sealing position than in the delivery position.