Fenestrated stent grafts
First Claim
1. A stent graft comprising a tubular body defined by a tubular wall and comprising a first end and a second end, an internal terminal zig zag self expanding stent in the tubular body at at least the first end, the zig zag stent comprising struts and bends between the struts, at least one scalloped fenestration in the tubular wall provided at the first end of the tubular wall, the at least one scalloped fenestration including a periphery, the periphery extending between at least two pairs of adjacent struts thereby defining an uncovered adjacent pair of struts and a bend therebetween in the scalloped fenestration and a resilient wire stitched around at least a portion of the periphery, whereby the resilient wire provides dimensional stability to the fenestration.
4 Assignments
0 Petitions
Accused Products
Abstract
A stent graft (1) including a tubular wall (3) with at least one fenestration (40) including a peripheral (37) reinforcement around at least part of the fenestration. There can also be a tubular extension (15). The side arm includes a stent (19) and a cover (17) and extends from and is in fluid communication with the fenestration and the stent graft. The stent may be a self expanding stent. The ring and/or tubular extension provides better support and sealing for an extension arm. The fenestration (40) can be circular or if towards the ends of the stent graft may be in the form of a U-shape (50) with an open end.
-
Citations
8 Claims
- 1. A stent graft comprising a tubular body defined by a tubular wall and comprising a first end and a second end, an internal terminal zig zag self expanding stent in the tubular body at at least the first end, the zig zag stent comprising struts and bends between the struts, at least one scalloped fenestration in the tubular wall provided at the first end of the tubular wall, the at least one scalloped fenestration including a periphery, the periphery extending between at least two pairs of adjacent struts thereby defining an uncovered adjacent pair of struts and a bend therebetween in the scalloped fenestration and a resilient wire stitched around at least a portion of the periphery, whereby the resilient wire provides dimensional stability to the fenestration.
Specification