Transcatheter heart valve having paravalvular leakage seal

A heart valve assembly comprising:

• a. an inner frame comprising a graft covering housing a prosthetic heart valve, wherein the graft covering extends around the prosthetic heart valve for providing sealing to the heart valve;
• b. an outer frame formed from a metallic material and defining a gridded configuration, and being secured to the graft covering by a plurality of stitches;
• and
• c. a sealing material positioned externally to the outer frame for providing sealing between the outer frame and a patient's anatomical wall to prevent paravalvular leaks,
• wherein the sealing material includes a plurality of radially extending fibers that extend outwardly of the outer frame;
• wherein the graft covering is made of polyester, polytetrafluoroethylene, expanded polytetrafluoroethylene, or a polymer.