Bifurcated multicapsule intraluminal grafting system and method
View Patent ↗An intraluminal grafting system having a balloon catheter assembly, a capsule catheter assembly and capsule jacket assembly is used for deploying in the vessel of an animal body a bifurcated graft having a plurality of attachment systems. The deployment catheters contain an ipsilateral capsule assembly, a contralateral capsule assembly and a distal capsule assembly, wherein the attachment systems of the bifurcated graft are disposed within the three capsule assemblies. A removable sheath of the capsule jacket assembly covers the bifurcated graft and capsule assemblies to provide a smooth transition along the length of the deployment catheters. The bifurcated graft is comprised of a main tubular member and two tubular legs, having attachment systems with wall engaging members secured to the superior end of the main tubular member and the inferior ends of the tubular legs. An inflatable membrane configured on the balloon catheter is used to firmly implant the attachment systems within the vessel. The bifurcated graft and attachment systems are configured to remain in the vessel after the deployment catheters are withdrawn. The method of use of the present intraluminal grafting system is also disclosed, for example, for deploying a bifurcated graft proximate the abdominal aortic bifurcation.
1. A bifurcated graft configured to treat an aortic aneurysm, comprising:
a bifurcated body including a trunk, a first leg and a second leg;
a first ring attached to the trunk;
a second ring and a third ring each attached to the first leg; and
a fourth ring and a fifth ring each attached to the second leg;
wherein at least one of the first ring, second ring, third ring, fourth ring and fifth ring includes a plurality of alternating apices.
2. The bifurcated graft of claim 1 , wherein each of the rings are self-expanding.
3. The bifurcated graft of claim 1 , the bifurcated graft defining an internal surface, wherein each of the rings are configured within the internal surface of the graft.
4. The bifurcated graft of claim 1 , the first ring comprising at least one vessel wall engaging member.
5. The bifurcated graft of claim 1 , the second ring comprising at least one vessel wall engaging member.
6. The bifurcated graft of claim 1 , the fourth ring comprising at least one vessel wall engaging member.
7. The bifurcated graft of claim 1 , each of the rings comprising a plurality of alternating apices.
8. The bifurcated graft of claim 7 , comprising a helical coil configured at each of the plurality of alternating apices.
9. The bifurcated graft of claim 1 , wherein the first leg is longer than the second leg.
10. The bifurcated graft of claim 1 , wherein the second ring and third ring are spaced longitudinally along the first leg.
11. The bifurcated graft of claim 1 , wherein the fourth ring and fifth ring are spaced longitudinally along the second leg.
12. The bifurcated graft of claim 1 , wherein each of the rings define continuous closed structures.
13. The bifurcated graft of claim 1 , wherein at least the second ring and fourth ring are permanently attached to the bifurcated graft prior to placement thereof at an aortic bifurcation.