Gated-concentric artificial lung

An artificial lung comprising:

• a housing having a circular outer wall being enclosed by a first surface and a second surface to define an interior volume;
• a blood inlet port operable to permit inlet flow of blood to the interior volume of the housing;
• a blood outlet port operable to permit outlet flow of the blood from the interior volume of the housing;
• a gas inlet port operable to permit inlet flow of a gas to the interior volume of the housing;
• a gas outlet port operable to permit outlet flow of the gas from the interior volume of the housing;
• a plurality of baffles concentrically disposed within the housing and fixedly coupled to the housing, the plurality of baffles being positioned to define a flow path between the blood inlet port and the blood outlet port, each of the plurality of baffles includes a gate opening formed therethrough to permit flow of the blood along the flow path;
• and
• a non-rotating fiber bundle being disposed within and fixedly coupled to the housing and between the plurality of baffles within the flow path, the non-rotating fiber bundle being configured to passively generate orderly secondary flows and recirculation as the blood flows along the flow path through the non-rotating fiber bundle and gate openings from the blood inlet port to the blood outlet port,
• wherein the inlet flow of blood to the interior volume of the housing via the blood inlet port is provided solely based on a patient's native circulatory system.