Patent ID: 8231669
Filing Date: 2012-07-31
Classification: A61F

Abstract:
1. A bifurcated stent comprising: a substantially tubular primary body defining a circumferential plane, an outer surface, a primary lumen and having a primary longitudinal axis extending therethrough, the primary body being expandable from an unexpanded state to an expanded state, wherein in the unexpanded state the primary body has a diameter less than that of the diameter in the expanded state, the primary body comprising a side branch assembly, in the expanded state the side branch assembly comprising a substantially tubular secondary body defining a secondary lumen having a secondary longitudinal axis extending therethrough, the secondary lumen being in fluid communication with the primary lumen, the secondary longitudinal axis forming an oblique angle with the primary longitudinal axis; and at least one tether, the at least one tether having a first end, a second end and a length therebetween, the first end engaged to the primary body and a second end engaged to the secondary body, in the unexpanded state, at least a portion of the tether length extending along the circumferential plane of the primary body, in the expanded state at least a portion of the length of the tether moved to a position defining a vector which forms an angle greater than zero with the circumferential plane of the primary body.