发明名称 |
Suture rings for heart valves and method of securing suture rings to heart valves |
摘要 |
A suture ring for a mechanical heart valve comprised of essentially three parts: a stiffening ring which fits over an outer surface of the heart valve; a knit fabric sewing cuff attached to the stiffening ring, and a locking ring for securing the stiffening ring to the heart valve. The preferred embodiment comprises a locking ring which is generally crescent-shaped in cross-section and has a split ring configuration. Radial expansion or contraction is a first mode of deformation for the locking ring. The stiffening ring and the valve body can be locked together because the locking ring is capable of deforming in a second mode with respect to thickness of the ring. In the case of the preferred embodiment, the locking ring deforms by a slight flattening of the cresent cross-section of the ring.
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申请公布号 |
US5071431(A) |
申请公布日期 |
1991.12.10 |
申请号 |
US19900610084 |
申请日期 |
1990.11.07 |
申请人 |
CARBOMEDICS, INC. |
发明人 |
SAUTER, JOSEPH A.;POEHLMANN, JEFFREY L.;CAMPBELL, LOUIS A. |
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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