摘要:
The present disclosure relates to an endoluminal prosthesis (10), such as a stent graft that includes one or more fenestrations (12) to accommodate endovascular disease, such as an aneurysm in cases where one or more side branches is involved. In one embodiment, the prosthesis (10) includes fenestrations (12) that are pivotable to accommodate the dynamic geometry of the aortic branches. In another embodiment, the pivotable fenestrations (12) include a first perimeter (26), a band (28) of flexible material attached and surrounding the first perimeter (26), a second perimeter (30) attached to and surrounding the band (28) of flexible material and a support frame (48) disposed about a surface of the band (28) of flexible material. The first perimeter (26), band (28) of flexible material, and second perimeter (30) have a geometric shape. The support frame (48) includes a plurality of support units (50) having curved segments (54). The curved segments (54) of the support units (50) may be concave with respect to an exterior surface of the prosthesis (10).
摘要:
An endoluminal prosthesis (100) may include a tubular main body (110) and a branch (130). The main body may include proximal and distal end openings, a lumen (113), a sidewall (114), and a fenestration (126) in the sidewall. The branch (130) may include a tubular retrograde branch segment (142), a tubular antegrade branch segment (152), and a tubular branch junction (132). The retrograde branch segment (142) may include an inlet opening fluidly coupled to the fenestration (126) of the main body (110) and an outlet opening fluidly coupled to the branch junction and positioned longitudinally between the proximal end opening and the fenestration of the main body (110). The antegrade branch segment (152) may include an inlet opening fluidly coupled to the branch junction (132) and an outlet opening positioned longitudinally distal of the inlet opening of the antegrade branch segment (152). The retrograde branch segment (142) and the antegrade branch segment (152) may be in fluid communication with one another through the branch junction.
摘要:
In an apparatus for deployment of an implantable medical device including a stent graft, a restraining device (54), such as cord or suture, holds at least the proximal end (30) of the stent in a radially inwardly compressed configuration during delivery to a desired location within the lumen of a patient's vessel. Withdrawal of one or more trigger wires (58, 60) facilitates the release and removal of the restraining cord from the proximal end of the stent so as to allow the stent to become fully deployed within the vessel.
摘要:
A prosthesis may be used for treatment of an aneurismal body vessel. The prosthesis may include a prosthetic trunk (20) and a prosthetic branch (40). The prosthetic trunk may include a graft body (25), an open first end (21), an open second end (23), and a trunk lumen (29) extending therebetween. The prosthetic branch (40) may include a graft body (45), an open first end (41), an open second end (43), and a branch lumen (49) extending therebetween. The first end of the prosthetic branch may be attached to the prosthetic trunk (20), and the branch lumen may be in fluid communication with the trunk lumen. The prosthetic branch (40) may be movable in relation to the prosthetic trunk (20) between neutral, right biased, and left biased configurations. First and second releasable steering members (70, 90) may be associated with the respective first and second biased configurations and may cooperatively retain the prosthetic branch (40) in the neutral configuration.
摘要:
An endoluminal prosthesis (10), such as a stent graft, includes one or more fenestrations (12) to accommodate endovascular disease, such as an aneurysm in cases where one or more side branches is involved, the fenestrations (12) being pivotable to accommodate the dynamic geometry of the aortic branches.