PERISTALTIC PUMP Russian patent published in 1994 - IPC

FIELD: medical engineering, artificial circulation apparatus. SUBSTANCE: peristaltic pump has a stator with elastic pipe adjacent its inner surface; rotor disposed in the stator cavity and mounted on the shaft of a drive; rollers being in contact with the elastic pipe which axles are fixed to sliders capable of translational movement in radial direction in the guides of rotor; a spacer member being in contact with the rotor axis; an adjusting screw for adjusting occlusion of the elastic pipe. The spacer member is made in the form of a cam capable of angular movement around its axis and coupled with the rotor shaft with the aid of torsion spring interposed between the cam and rotor hub. The cam has stops formed on its end surface and capable of interacting with an eccentric made integrally with the adjusting screw mounted in a disk rigidly secured to the rotor hub. EFFECT: improved operating capabilities. 2 cl, 3 dwg