Patent ID: 7806923

Claim:
An intraluminal stent device for placement in a side branch vessel associated with a bifurcated vessel, comprising: an expandable body portion having a generally cylindrical hollow shape having a proximal end and a distal end; and a split ring including a first semi-circular portion and a second semi-circular portion, wherein the first semi-circular portion and the second semi-circular portion are attached to the proximal end of the body portion and are not attached to each other, wherein the stent device includes a first unexpanded configuration and second expanded configuration, wherein in the first unexpanded configuration the body portion has a first body portion outer diameter and the split ring has a first split ring outer diameter, and wherein in the second expanded configuration the body portion has a second body portion outer diameter larger than the first body portion outer diameter and the split ring has a second split ring outer diameter larger than the first split ring outer diameter, wherein the first split ring outer diameter is larger than the first body portion outer diameter, and wherein the second semi-circular portion nests within the first semi-circular portion in the first unexpanded configuration.