Transcatheter valve having improved paravalvular seal
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United States of America Patent
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-
Dec 5, 2023
Grant Date -
Oct 6, 2022
app pub date -
May 19, 2022
filing date -
Dec 6, 2011
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A heart valve assembly includes an inner frame comprising a graft covering housing a prosthetic heart valve. The graft covering extends around the prosthetic heart valve for providing sealing to the heart valve, 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 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. The sealing material includes a plurality of radially extending fibers that extend outwardly of the outer frame. The graft covering is made of polyester, polytetrafluoroethylene, expanded polytetrafluoroethylene, or a polymer.
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