Anti-Paravalvular Leakage Component for a Transcatheter Valve Prosthesis

A transcatheter valve prosthesis comprising:

• a tubular stent having a compressed configuration for delivery within a vasculature and an expanded configuration for deployment within a native heart valve;
• a prosthetic valve component disposed within and secured to the stent;
• and
• an anti-paravalvular leakage component coupled to and encircling an outer surface of the tubular stent, the anti-paravalvular leakage component including a plurality of self-expanding struts and an annular sealing membrane coupled to the struts, each strut having a first end coupled to a distal end of the tubular stent and a free end not coupled to the tubular stent, wherein the anti-paravalvular leakage component is moveable between a compressed configuration in which each strut extends distally away from the distal end of the stent and a deployed configuration in which each strut has a C-shape that extends proximally away from the distal end of the stent and is twisted such that the C-shape lies in a plane tangential with an outer surface of the stent or a plane parallel to the plane tangential with the outer surface of the stent.

A transcatheter valve prosthesis comprising:

• a tubular stent having a compressed configuration for delivery within a vasculature and an expanded configuration for deployment within a native heart valve;
• a prosthetic valve component disposed within and secured to the stent;
• and
• an anti-paravalvular leakage component coupled to and encircling an outer surface of the tubular stent, the anti-paravalvular leakage component including a plurality of self-expanding struts and an annular sealing membrane coupled to the struts, each strut having a first end coupled to a distal end of the tubular stent and a second end not coupled to the tubular stent, wherein the anti-paravalvular leakage component is moveable between a compressed configuration in which each strut extends distally away from the distal end of the stent and a deployed configuration in which each strut is rolled-up and extends radially away from the distal end of the stent.