System for enriching a bodily fluid with a gas

A system for enriching a bodily fluid with a gas, the system comprising: a pump system (24) adapted to transmit a bodily fluid from a patient; one gas-enriching device operatively coupled to the pump system (24) for receiving the body fluid, the enriching device combining the bodily fluid gas with a gas to form a gas enriched bodily fluid; bubble detector (74) arranged to detect bubbles in the gas-enriched bodily fluid; and a controller (28) designed to control the pump system (24) and the gas-enriching device automatically, characterized in that the gas-enriching device comprises a disposable cartridge adapted to be placed in an enclosure (26) and comprising a housing (16); enrichment device disposed in the housing (16) to form a gas-enriched physiologic fluid; a mixing device disposed in the housing (16) to mix the gas-enriched physiologic fluid with the bodily fluid to form the gas-enriched bodily fluid; a feed fluid disposed in the housing (16) for feeding a physiological fluid to the enrichment device; and a set of valves disposed in the housing (16), the valve assembly, valves for controlling the flow of physiological fluid between the device fluid supply and the enrichment device for controlling the flow of enriched physiologic fluid gas between the enrichment device and the mixing device.