Prosthetic heart valve including stent structure and tissue leaflets, and related methods
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United States of America Patent
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Jan 15, 2013
Grant Date -
Jun 19, 2008
app pub date -
Dec 19, 2007
filing date -
Dec 19, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A prosthetic heart valve includes an annular stent having annularly spaced commissure portions. The tips of the commissure portions are preferably covered with fabric, and then additional fabric covers that fabric and the remainder of the stent, both inside and out (possibly also including a sewing ring insert at or near the base or inflow edge). The fabric is then covered by a layer of tissue, again both inside and out. A single sheet of additional tissue is mounted around the outside of the previously assembled components. This additional tissue forms the leaflet portions of the valve. The leaflet portions of the additional tissue are shaped by contact with a shaped mandrel, and the tissue of the structure is subjected to fixation (e.g., cross-linking) to produce a completed valve.
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Family
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