METHOD OF REGULATING THE PERISTALTIC PUMP Russian patent published in 2018 - IPC A61M1/10 F04B43/12 

FIELD: medicine.

SUBSTANCE: invention relates to medical technique, namely to method for controlling a peristaltic pump for pumping liquid body fluids. Pump comprises elastic tube installed inside the circular stop wall and in contact with the rollers rotating on the axes. Rollers are fixed on levers, hinged with the drive shaft and rotating together with the latter. Regulate the volume flow of the pump by changing the radial position of the axis of rotation of the rollers relative to the axis of rotation of the drive shaft. Before starting pumping rotational axes of rollers are taken from axis of rotation of the drive shaft to the stop, experienced by a fully elastic tube. Set the obtained position of the rollers and enter into the memory of the pump control system as an inadmissible position of the rollers, in which the elastic tube is completely compressed. Rollers are retracted to the position of their rotation axes at a smaller predetermined distance to the axis of rotation of the drive shaft, in which the pumped medium is not injured. Set the obtained position of the rollers as the position of the maximum permissible pump feed, which is also memorized in the pump control system. Perform pumping. Adjust the supply of the pump within the specified limits of the position of the axes of rotation of the rollers relative to the axis of rotation of the drive shaft by changing the speed of the drive shaft.

EFFECT: exclusion of pump operation modes, in which blood cells and other organic liquids are traumatized.

1 cl, 4 dwg