发明名称 |
SYSTEMS AND METHODS FOR ASSEMBLING COMPONENTS OF A FABRIC-COVERED PROSTHETIC HEART VALVE |
摘要 |
<p>A system and method for assembling a prosthetic heart valve, including a procedure for tightly wrapping fabric around a heart valve support stent having a highly contoured undulating outflow edge. A mandrel retains tension without manual assistance in a tubular length of fabric wrapped over the support stent, and includes relatively axially movable inner and outer clamping mechanisms and a pedestal tube on which the support stent rests. The clamping mechanisms include clamps that pull the fabric only in the support stent cusps. The mandrel assembly may be placed in a chuck of a sewing machine system for automatically forming the seam. A small shuttle with bobbin thread reciprocates within a channel inside of the support stent and cooperates with the sewing machine needle to form a lock-stitch in the fabric tube. The mechanization of the fabric covering procedure greatly enhances manufacturing throughput and reduces ergonomic strain on workers.</p> |
申请公布号 |
EP1887982(A2) |
申请公布日期 |
2008.02.20 |
申请号 |
EP20060772245 |
申请日期 |
2006.06.06 |
申请人 |
EDWARDS LIFESCIENCES CORPORATION |
发明人 |
CHAMBERS, FREEMAN, G.;ZYSMAN, LAWRENCE, J. |
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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