Valve Prosthesis and Method for Delivery

摘要

In some embodiments, a valve prosthesis includes an inlet portion that is substantially s-shaped and configured to engage the floor of the outflow tract of the native heart atrium. In some embodiments, a valve prosthesis includes a chordae guiding element configured to reduce bending of the chordae to reduce stress on the chordae during the cardiac cycle. In some embodiments, a valve prosthesis includes a central portion having an hourglass shape configured to pinch a native annulus in order to provide axial fixation of the valve prosthesis within a valve site. In some embodiments, a valve prosthesis includes a frame having an outflow end that is flared to provide a gap between an outflow end of the frame and an outflow end of prosthetic leaflets when the prosthetic leaflets are fully opened.

主权项

1. A valve prosthesis for implantation into a native cardiac valve site of an individual, the valve prosthesis comprising:
a valve body; and a frame supporting the valve body, the frame comprising: an inlet portion configured to engage the floor of the outflow tract of the native heart atrium and restrict movement of the valve prosthesis in a downstream direction of blood flow at the valve site; wherein the inlet portion is substantially s-shaped.