Abstract: A catheter device used in the catherization of a blood vessel during hemodialysis which comprises a hub assembly having at least a first and second fluid conduit each of which are connected in fluid communication with separate concentrically disposed tube elements so as to define a first and second fluid flow path. The concentrically arranged tube elements provide for a single puncture into the predetermined blood vessel wherein the first and second fluid conduits are interconnected to a continuous negative and positive source of fluid flow so that blood will be continuously drawn from and supplied to the predetermined blood vessel by means of the outer and inner tube elements respectively.

Abstract: A female urinary device includes a generally inverted U-shaped, stiff and resiliently bendable, member having an upper end portion insertable into a vaginal orifice and depending spaced leg portions engaged with the vaginal wall. Spaced arm portions extend laterally forwardly from the leg portions for forcibly contacting and spreading the labia minora and majora without distorting forces being applied to the urethral orifice disposed generally between and adjacent the free ends of the arm portions. A reduced neck portion of the legs is located in the vaginal orifice after said leg portions have been squeezed together and the device is properly positioned in and on the female. The vaginal muscles engage the leg portions which correspondingly exert expanding forces within the vagina to position and stabilize the device in its operative position with the arm portions exerting expanding forces on the labia minora and majora.