Transmural;The United States of America, as Represented by the Secretary, Department of Health and Human Servic
发明人:
Nasser Rafiee,Stuart MacDonald,Robert J. Lederman,Kanishka Ratnayaka,Biwei MacDonald,Alana Rafiee
申请号：
US16399670
公开号：
US20190321043A1
申请日:
2019.04.30
申请国别(地区):
US
年份:
2019
代理人:
摘要：
In some implementations, a radially self-expanding endograft prosthesis is provided that includes (i) distal flange that is self-expanding and configured to flip generally perpendicularly with respect to a body of the prosthesis to help seat the prosthesis against a tissue wall, (ii) a distal segment extending proximally from the distal flange that has sufficient stiffness to maintain a puncture open that is formed through a vessel wall (iii) a compliant middle segment extending proximally from the distal segment, the middle segment being more compliant than the distal segment, and having independently movable undulating strut rings attached to a tubular fabric, the combined structure providing flexibility and compliance to allow for full patency while flexed, the segment being configured to accommodate up to a 90 degree bend, (iv) a proximal segment having a plurality of adjacent undulating strut rings that are connected to each other.
