#$%^&*AU2011218604B220150205.pdf#####BLADELESS OBTURATORS AND BLADELESS OBTURATOR MEMBERS ABSTRACT A surgical obturator (100) that includes an elongated shaft (120) defining a longitudinal axis and an obturator member (200a) disposed adjacent a distal end of the elongated shaft (120). The obturator member (200a) may include a proximal section (220a) being convex along a majority of its length. It may also include a central section (240a) disposed adjacent the proximal section (220a), the central section (240a) including a first pair of surfaces (242a) disposed relative to each other on radially opposite sides of the central section (240a), and a second set of surfaces disposed between the first pair of surfaces (242a) and further being disposed relative to each other on radially opposite sides of the central section (240a), at least a portion of a length of each one of the first pair of surfaces (242a) being concave, and at least a portion of a length of each one of the second pair of surfaces being convex. The obturator member (200a) may also include a guiding nub (260a) disposed distally of the central section (240a) and including a rounded distal-most portion (262a). The rounded distal-most portion (262a) of the guiding nub (260a) may be atraumatic to tissue.1/10 e%I CDC