An infusion system for subcutaneous delivery of a fluid to a subject is disclosed. The infusion system comprises a source of a fluid; a fluid delivery system; a first fluid conduit in fluid communication with the source of the fluid and the fluid delivery system; a fluid injection device configured to be inserted into the skin of a subject for delivering the fluid to the subject; a second fluid conduit in fluid communication with the fluid delivery system and the fluid injection device; and a support frame attached to the source of the fluid and the fluid delivery system, wherein the support frame is configured to mount the source of the fluid and the fluid delivery system on a region of a head of the subject. The fluid delivery system moves the fluid from the source of the fluid, through the first fluid conduit, through the second fluid conduit, and through the fluid injection device.