PERISTALTIC PUMP Russian patent published in 1994 - IPC

FIELD: medical engineering. SUBSTANCE: pump has a stator with a flexible tube adjusting to its inner surface, a rotor positioned in the stator cavity, rollers engageable with the flexible tube. The roller axles are fastened in radial guides of the rotor. The pump also has a thrust member which axle is aligned with the rotor axle and which is engageable with sliders. The thrust member is made in the form of a cam of equiaxial cross section with the number of projections equal to the number of rollers. The double eccentricity of the cam is equal to the diameter of the flexible tube, an intake cone is made on the rollers. The rollers are three in number. EFFECT: improved structure. 2 cl, 2 dwg