PERFUSION PUMP FOR PUMPING BLOOD Russian patent published in 2022 - IPC A61M60/00 

FIELD: medical technology.

SUBSTANCE: invention relates to medical technology. The perfusion pump for pumping blood includes a housing with inlet and outlet pipes equipped with valves and an elastic membrane. The housing cover is equipped with a channel for connecting a vacuum pump. The additional chamber is adjacent to the outer surface of the housing and is equipped with an additional elastic membrane. The housing is made in the form of a sealed body of rotation with the possibility of creating an adjustable amount of discharge in it. A rotor with a recess and a channel for creating a vacuum in the recess is installed inside the housing. The elastic membrane is located in the gap between the housing and the rotor and is made with diametrically oppositely spaced internal cavities that form working chambers when interacting with the recess of the rotor. The inlet pipe is mounted on an additional chamber equipped with an additional elastic membrane fixed on the inner surface of the additional chamber and dividing the additional chamber into two cavities, one of which, formed by the walls of the additional chamber and an additional elastic membrane, is connected to one cavity of an elastic membrane located in the gap between the rotor and the other forms the inner space of the additional chamber and is communicated through a valve with a second cavity of an elastic membrane located in the gap between the rotor and the housing. The second cavity of the elastic membrane is connected to the outlet pipe.

EFFECT: reducing the mechanical effects on the blood.

1 cl, 2 dwg