A device and method for facilitating access to a perimeter surface of a body structure is provided. The device includes an elongate flexible member configured to be positioned adjacent the perimeter surface of the body structure, an atraumatic tip positioned at a distal end of the elongate flexible member, and an elongate body. The elongate body has a surface positioned to guide the elongate flexible member and to permit longitudinal movement of the flexible member with respect to the elongate body. The body also has a curved distal portion and a distal end for releasably engaging the atraumatic tip.
