MEMBRANE OXYGENATOR Russian patent published in 2024 - IPC A61M1/16 A61M1/36 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to a membrane oxygenator. Oxygenator comprises an upper cover which is sequentially divided into a first space of the blood path, a first space of the air path and a first space of the water path from the centre to the outer edge. Upper cover is provided with a gas inlet connected to the first space of the air path, the first gas outlet port connected to the first space of the blood path, and a water inlet port connected to the first space of the water path. Oxygenator has a lower cover which is sequentially divided into a second space of the blood path, a second space of the air path and a second space of the water path from the centre to the outer edge. Lower cover is provided with a blood outlet connected to the second space of the blood path, an air outlet connected to the second space of the air path, and a water outlet connected to the second space of the water path. Oxygenator comprises a body, both ends of which are connected to the upper cover and the lower cover, and the inlet hole for blood connected to the inner cavity of the body is located on the body near the upper cover. Oxygenator has an oxygenation structure, which is located in the inner cavity of the housing and includes a mandrel, an oxygenation membrane and a temperature-controlled membrane. Upper end of the mandrel enters the first space of the blood path. Upper end of the mandrel is located opposite the first gas outlet, and the lower end of the mandrel is located opposite the blood outlet. Membrane for oxygenation is located around the mandrel and connects the first space of the air path and the second space of the air path, and the membrane with controlled temperature is located around the membrane for oxygenation and is connected to the first space of the water path and the second space of the water path. There is a gap between the temperature-controlled membrane and the inner wall of the housing, and the width of the gap decreases from the upper cover to the lower cover. Oxygenator has a turbulent flow structure for directing a lateral blood flow. Turbulent flow structure is located between housing and membrane with controlled temperature. Turbulent flow structure includes protrusions protruding from the inner wall of the housing towards the membrane with controlled temperature.

EFFECT: creation of a membrane oxygenator, which can provide better gas exchange capacity with the same area of the membrane for oxygenation.

10 cl, 7 dwg