Stuart MACDONALD;Robert J. LEDERMAN;Biwei MACDONALD;Nasser RAFIEE;Kanishka RATNAYAKA;Alana RAFIEE
发明人:
Nasser RAFIEE,Stuart MACDONALD,Robert J. LEDERMAN,Kanishka RATNAYAKA,Biwei MACDONALD,Alana RAFIEE
申请号：
US15267075
公开号：
US20170071722A1
申请日:
2016.09.15
申请国别(地区):
US
年份:
2017
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.
