Patent ID: 8747764

Claim:
A system for rendering fluid for parenteral infusion sterile comprising: a housing containing an UV source constructed and arranged to provide a predetermined quantity of UV radiation to thereby sterilize the fluid; said housing comprised of a base unit for supporting the UV source, a canister having an outer canister wall and that is removably mounted to the base unit, and a cassette having top and bottom ends and for insertion into and engagement with the canister; a fluid chamber of the cassette having an inlet that receives the fluid from a source and an outlet that directs fluid to a parenteral location, the fluid chamber being constructed and arranged to conduct the fluid therethrough so as to maximize surface area for the flow of the fluid therein and maximize exposure to the predetermined quantity of UV radiation by providing more direct contact of the maximized surface area from the UV source; said fluid chamber defined by a UV-transmissive inner wall and a concentric UV-opaque or UV-reflective outer wall defining therebetween a thin space that conducts the fluid with capillary action, the UV source disposed within and spaced from the inner wall; said inner and outer walls supported between the respective top and bottom ends of the cassette so as to define the fluid chamber.