FIELD: engines and pumps.
SUBSTANCE: invention relates to medical pumps. Cylindrical pump comprises cylindrical top case accommodating top rotor and cylindrical bottom case engaged with top case to accommodate bottom rotor engaged with top rotor. Inner wall of top case and top rotor lower outer circle and bottom case inner wall and rotor upper outer surface make the integral tubular cylinder. Top and bottom rotors comprise plungers fitted thereon to spin in tubular cylinder with closed ends. Cylinder is equipped with inlet pipe and discharge pipe for liquid medical preparation extending beyond outer circles of said top and bottom cases. Top and bottom rotors are engaged to run independently.
EFFECT: simplified design, stable feed irrespective of source vessel location height.
11 cl, 22 dwg
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