PL436124A1 - Device for blood oxygenation - Google Patents

Abstract

The subject of the invention is a blood oxygenation device (blood oxygenator) used for supplementing oxygen deficiency in hypoxic blood, especially in cases of acute respiratory distress syndrome. The device comprises a gas exchange chamber (1) with an oblong shape in the form of a straight cylinder or an elliptical cylinder, the bases (2 and 2 ') of which are provided with through-holes, while on one side the chamber (1) is gas-tight connected to the equalizing tank (4). ) supplying the chamber (1) with an oxygen-containing gas mixture, having an inlet opening (5) of the gas mixture from the installation supplying this mixture, and on the other side the chamber (1) is gas-tight connected to a discharge tank (6) from the gas mixture chamber having an outlet opening (7) of the gas mixture, and inside the chamber (1) there is a membrane in the form of a bundle of capillaries (8) made of a semi-permeable material, i.e. permeable to gas mixture particles and impermeable to blood particles, the ends of which on both sides are anchored in through holes in the bases (2, 2 ') of the chamber (1), and the capillaries (8) are spiral-shaped, i.e. they are twisted along the longitudinal axis of the chambers y (1) with an equal angle ranging from 15 to 720 degrees, preferably by an angle from 90 to 360 degrees, and under a tensioning force of 1 to 100 N, preferably 10 N, moreover in the side wall of the chamber (1) in near each base (2, 2 ') of the chamber, at least one blood stream inlet / outlet is provided.