Patent ID: 8870946

Claim:
A method for deploying an intravascular stent graft comprising the steps of: providing an intravascular stent graft comprising, first and second primary stent segments; a primary graft sleeve operatively coupled near a first open end thereof to the first primary stent segment, operatively coupled near a second open end thereof to the second primary stent segment, having a side opening therethrough, and forming a main fluid flow channel between the open ends of the graft sleeve; and an internal graft channel formed within the primary graft sleeve and having an inner open end facing the primary graft sleeve first open end and being located within the primary graft sleeve, and an outer open end communicating with the side opening of the primary graft sleeve, thereby forming at least a portion of a branch fluid flow channel between the main fluid flow channel and the side opening of the graft sleeve, wherein said internal graft channel is secured to at least a portion of the inner surface of the primary graft sleeve; delivering transluminally the intravascular stent graft to a repair site of a main vessel such that the side opening of the primary graft sleeve is substantially aligned with a lumen of a branch vessel of the main vessel at the repair site; engaging the first primary stent segment and the first open end of the primary graft sleeve with an endoluminal surface of the first segment of the main vessel; and engaging the second primary stent segment and the second open end of the primary graft sleeve with an endoluminal surface of the second segment of the main vessel; passing a secondary stent graft into the internal graft channel, through the side opening of the primary stent graft sleeve, and into the branch vessel, wherein the secondary stent graft comprises first and second secondary stent segments, a secondary graft sleeve operatively coupled near a first open end thereof to the first secondary stent segment, and operatively coupled near a second open end thereof to the second secondary stent segment, the secondary stent graft being adapted for passing within the internal graft channel and through the side opening of the primary graft sleeve, wherein at least one of the first and second primary stent segments and first and second secondary stent segments comprise radiopaque material.