发明名称 |
VALVE PROSTHESIS SYSTEMS AND METHODS |
摘要 |
<p>Valve prostheses are disclosed that are adapted for secure and aligned placement relative to a heart annulus. The valve prostheses may be placed in a non-invasive manner, e.g., via trans-catheter techniques, and may be positioned/repositioned until proper alignment and positioning is achieved. The valve prosthesis may include a resilient ring, a plurality of leaflet membranes mounted with respect to the resilient ring, and a plurality of positioning elements movably mounted with respect to the flexible ring, each of the positioning elements defining a first tissue engaging region and a second tissue engaging region spaced from the first tissue engaging region. The positioning elements are adapted to substantially completely invert by rotating relative to the resilient ring between a first position in which each of the first and second tissue engaging regions is inwardly directed for facilitating positioning of the valve prosthesis within a delivery catheter, and a second position in which each of the first and second tissue engaging regions is outwardly directed for engaging tissue. The valve prosthesis may also include a valve skirt mounted with respect to the resilient ring.</p> |
申请公布号 |
EP2114305(A2) |
申请公布日期 |
2009.11.11 |
申请号 |
EP20080713452 |
申请日期 |
2008.01.03 |
申请人 |
ENDOVALVE, INC.;THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA |
发明人 |
LAMPHERE, DAVID, G.;NGUYEN, TUAN, ANH;HERRMANN, HOWARD, C. |
分类号 |
A61F2/24 |
主分类号 |
A61F2/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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