Expandable supportive endoluminal stent graft

An expandable supportive endoluminal stent graft comprising:

• a self-expanding wire stent, wherein the self-expanding wire stent is coaxially arranged substantially internally to an upper tubular body and externally to a plurality of tubular legs, said self-expanding wire stent being affixed to the upper tubular body and to the plurality of tubular legs and wherein the self-expanding wire stent and the primary inlet of the graft sleeve are adapted for engaging an endoluminal surface of a first segment of a main vessel and forming a substantially fluid-tight seal therewith and wherein the self-expanding wire stent and the secondary inlet of the graft sleeve are adapted for engaging an endoluminal surface of a second segment of a main vessel and forming a substantially fluid-tight seal;
• a graft sleeve comprising an upper tubular body defining a primary inlet, and a plurality of tubular legs, each leg defining an outlet in fluid communication with the inlet of the upper tubular body and wherein the plurality of tubular legs are bent inside the upper tubular body, being the outlets of the plurality of tubular legs placed inside the primary inlet of the upper tubular body, defining a secondary inlet in the graft sleeve at the point where the plurality of tubular legs bended inside the upper tubular body, being the secondary inlet in fluid communication with the outlets of the plurality of legs.

A method of producing an expandable supportive endoluminal stent graft comprising:

• folding a tubular sleeve along a longitudinal line extending along the inner surface of the sleeve and wherein the tubular sleeve is repeatedly folded and operatively connected along a set of longitudinal lines, forming a plurality of inner flow channels and wherein a portion of the tubular sleeve is bent over the stent, to cover a portion of the ends and wherein the tubular sleeve is operatively connected to the stent at the terminal ends of the tubular sleeve by means of suturing or encapsulating the stent;
• operatively connecting the inner surface along a portion of the longitudinal line by means of sewing or other mechanical means, forming a set of inner flow channels;
• mounting the tubular sleeve coaxially to a stent;
• and
• operatively connecting the tubular sleeve to the stent by means of suturing or by other mechanical means.