Heart valve having tissue alignment with anchors and an outer sheath
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Oct 16, 2001
filing date -
Sep 28, 1998
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An apparatus and a method for constructing a heart valve prepared from autologous tissue is disclosed. Three tissue leaflets are held in place with tissue anchors on a tissue mounting frame having an annular base and a plurality of commissure posts extending from the base. An elastomeric sheath rests gently on the tissue leaflets to prevent the leaflets from coming off of the anchor hooks and encloses the leaflets to form valve cusps. The leaflets touch each other on a coaptation line with an angle of approximately 65.degree. C. relative to the commissure post. The heart valves can be constructed intraoperatively in a short time, typically ten minutes. The low coaptation angle and the fact that the leaflets are held in place without being clamped between two unyielding members minimize stress on the tissue.
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Family
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Cited Art Landscape
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