Patent ID: 8007528

Claim:
A stent comprising: a plurality of interconnected framework members defining a plurality of cells, a portion of the interconnected framework members comprising a side branch structure defining an inner side branch cell, the inner side branch cell being shaped differently than other cells of the stent; the side branch structure comprising: an inner serpentine ring extending around the inner side branch cell, the inner serpentine ring comprising alternating struts and turns, the turns comprising alternating inner turns and outer turns, the inner turns comprising alternating first inner turns and second inner turns; an outer serpentine ring, the outer serpentine ring comprising alternating struts and turns, the outer serpentine ring having more struts and more turns than the inner serpentine ring; and a plurality of connectors each connector connecting between a first inner turn of the inner serpentine ring and an inner turn of the outer serpentine ring; wherein the second inner turns are located farther away from a side branch center point than the first inner turns, and the struts of the inner serpentine ring that are located on either side of a connector are parallel to the connector.