Catheter deliverable artificial multi-leaflet heart valve prosthesis and intravascular delivery system for a catheter deliverable heart valve prosthesis
Richard T. Schoephoerster; III;Siobhain L. Gallocher;Thomas E. Claiborne;Thomas E. Claiborne, III
发明人:
Thomas E. Claiborne, III,Richard T. Schoephoerster,Siobhain L. Gallocher
申请号：
US12864166
公开号：
US09011525B2
申请日:
2009.02.25
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A heart valve prosthesis includes a collapsible stent and a one-piece multi-leaflet valve. The stent includes at least one length of wire having a series of turns forming a spring-like stent. The one-piece multi-leaflet valve is attached to the stent and includes a cylinder of polyester material secured thereto at three points. The stent is collapsible in a radial direction between a contracted state and an expanded state. The contracted state has a radial dimension smaller than a radial dimension of the expanded state. The stent is spring biased toward the expanded state such that it occupies an active state when implanted into a heart. The active state has a radial dimension that is between the radial dimension of the contracted state and the radial dimension of the expanded state such that a radial load generated by the bias of the collapsible stent is sufficient to retain the heart valve prosthesis in the heart.
