IMPLANTS HAVING HIGH FATIGUE RESISTANCE, IMPLANT DELIVERY SYSTEMS, AND METHODS OF USE

The present invention relates to a stent for implant in a mammalian body comprising a tubular structure having a central axis defining a longitudinal direction and a circumferential sidewall having a wall thickness, and apertures extending through the sidewall, said apertures separating longitudinal struts having different widths and joined at apices, with a plurality of the struts grouped to define a cell, and adjacent cells being joined by connectors on opposed sides of the cell in the longitudinal direction, the struts, apices and connectors forming undulating row patterns, wherein in the circumferential direction of the stent, each cell comprises a first group of struts having a first width and a second group of struts having a second width different from the first width, and wherein at least one of the struts in the first group of struts extends from a connector and has a smaller width dimension than the struts in the second group of struts.