#$%^&*AU2018203842A120180628.pdf#####SYSTEMS AND METHODS FOR MAINTAINING A NARROW BODY LUMEN ABSTRACT A device (100) for providing at least one of diagnosis and treatment of a fallopian tube of a patient, said device (100) comprising: an elongate catheter (304) comprising a distal end portion (426) configured to be inserted into the patient during use and a proximal end portion that extends out of the patient during use； an imaging device or illumination device (408) configured to image or illuminate the fallopian tube at a location distal of said distal end portion (426)； and said distal end portion (426) includes an enlarged distal portion (430) configured to contact the walls of the fallopian tube and create a space around said imaging or illumination device (408).
