Medical systems, devices and methods are provided for accessing a bodily opening. One embodiment of a medical device generally includes a flexible sheath and an expandable member. The flexible sheath has a length suitable for forming the pathway along a longitudinal axis. The expandable member is connected to a distal portion of a sheath. The expandable member is operable between a collapsed configuration and an expanded configuration. The expandable member includes a plurality of longitudinally extending struts connected together by a wire frame. The plurality of struts move radially and circumferentially relative to one another between collapsed and expanded configurations.
