Apparatus for blood oxygenation

A device for producing a gas-supersaturated fluid is provided. The device includes a chamber having a first inlet to receive a gas and a second and a third inlets to receive a fluid; and an outlet for removal of the produced gas-supersaturated fluid. The gas is received from a gas supply that maintains pressure within the chamber at a predetermined level. An atomizer nozzle is coupled to the third inlet to create fine droplets of fluid within the chamber into which gas diffuses to create the gas-supersaturated fluid. The device also includes a first valve coupled to the outlet of the chamber and a second valve coupled to the second inlet, the third inlet and an actuator assembly to control delivery of the fluid from the piston assembly into the chamber. The fluid is delivered into the chamber through the second inlet when the second valve is open and the fluid is delivered through the third inlet when the second valve is closed.