J. Brent Ratz,Luca Pesce,Siddharth Vad,Garrett Dallas Johnson
申请号：
US15247461
公开号：
US20170056166A1
申请日:
2016.08.25
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A valve prosthesis can be configured to be deployed within a native heart valve and prevent axial flow of fluid around an exterior of the prosthesis. The prosthesis can include an expandable frame configured to radially expand and contract for deployment within the native heart valve, a flap assembly positioned around an exterior of the expandable frame, a proximal end of the flap assembly being positioned at or proximate a proximal end of the expandable frame. In some embodiments, the flap assembly can extend outward from the frame and have an expanded configuration configured to create a barrier to fluid flow exterior to the frame when deployed within the native heart valve.
