The Trustees of the University of Pennsylvania;EndoValve, Inc.
发明人:
Lamphere, David G.,Nguyen, Tuan Anh,Herrmann, Howard C.
申请号：
AU2008218947
公开号：
AU2008218947B2
申请日:
2008.01.03
申请国别(地区):
AU
年份:
2013
代理人:
摘要：
Valve prostheses are disclosed that are adapted for secure and aligned placement relative to a heart annulus. 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.
