MICRO-, SMALL FLOW OXYGENATOR Russian patent published in 1994 - IPC

FIELD: clinical practice, namely pediatry. SUBSTANCE: an oxygenator has a body with chambers for blood and gas, separated one from another by semipermeable membranes, inlet and outlet ducts and two covers. The chambers are in a hollow body with and inner closed protrusion. The covers are arranged opposite relative to the protrusion and have clamping members, whose lateral surface is congruent to an inner lateral surface of the body. The ducts for inlet and outlet of blood and gas are narrowed in a vertical plane and widened in a horizontal plane in direction from unions to the chambers. A cross section area of the duct is constant and has in a place of joining with the union and in a place of joining with the chamber respectively circular and elliptical cross sections. A generatrix of the duct in a horizontal plane is tangential relative to a lateral surface of the blood chamber. EFFECT: increased accuracy. 1 cl, 3 dwg