One-piece bifurcation graft

摘要

The present invention relates to an endoluminal prosthesis to be deployed at a vessel bifurcation, comprising a one-piece graft sleeve with a branching portion, defining a first prosthesis lumen and having, in its deployed state, a first diameter, said branching portion being reinforced by stent elements, and a trunk portion, defining a second prosthesis lumen in fluid communication with said first prosthesis lumen and having, in its deployed state, a second diameter. The trunk portion is essentially free from reinforcing stent-material (FIG. 4).

主权项

1. A catheter having loaded thereon an endoluminal prosthesis, said endoluminal prosthesis comprising a one-piece graft sleeve, said graft sleeve having a branching portion defining a first prosthesis lumen, said branching portion having in a deployed state, a first diameter and is reinforced by self-expandable stent elements, a trunk portion defining a second prosthesis lumen in fluid communication with said first prosthesis lumen, said trunk portion having, in a deployed state, a second diameter wherein said trunk portion is essentially free from reinforcing stent-material, and wherein said catheter is configured for placing said endoluminal prosthesis at a vessel bifurcation, said catheter comprising
a catheter body having a guide wire lumen for accommodating a guide wire and a graft actuator lumen, a constraining sheath for keeping radially compressed therein said loaded endoluminal prosthesis, and a graft actuator accommodated in said graft actuator lumen, wherein the trunk portion in a loaded state of the endoluminal prosthesis is compacted along a complete longitudinal axis and at a distal end has a reinforcing structural element wherein the catheter is configured such that it can be kinked or curved in a region where the loaded endoluminal prosthesis has the branching portion branching off from the trunk portion, wherein said graft actuator lumen terminates in an opening of the catheter body at the region where the loaded endoluminal prosthesis has the branching portion branching off from the trunk portion, and wherein the graft actuator on a distal end has connective struts releasably connecting the structural element of the trunk portion to the graft actuator.