PUMPING DEVICE, PULMONARY VENTILATION DEVICE, AS WELL AS BREATHING GAS SUPPLY METHOD Russian patent published in 2024 - IPC A61M16/00 A61M16/10 F04C18/12 F04C23/00 F04C29/00 

FIELD: medical equipment.

SUBSTANCE: group of inventions relates to a pulmonary ventilation device and a method for supplying respiratory gas. Device includes pumping unit (1). Pump unit (1) includes pump chamber (2) and runner (4) located in pump chamber (2). Pump chamber (2) has inlet (5) and outlet (6) made so that fluid can flow through inlet (5) into pump chamber (2) and flow out through outlet (6) from pump chamber (2). Inlet (5) and outlet (6) are connected by common channel to pump chamber (2). Inlet (5) is separated from outlet by separating element (8). Runner (4) is made with possibility of being driven inside pump chamber (2) along orbital trajectory, and the shape of runner (4) and the shape of pumping chamber (2) are made and matched with each other so that due to the movement of runner (4) in pumping chamber (2) at a constant speed, a sinusoidal flow of the fluid flowing from outlet (6) is realized environment. Shape of runner (4) in the cross section is formed by generation of a spline function in Cartesian coordinates and its conversion into polar coordinates so that the curve can run without jumps. Shape of runner (4) and the shape of pumping chamber (2) are made and matched with each other in such a way that when considering the cross-section in the angular position of slider (4) at 0° in relation to the orbital trajectory inside pump chamber (2), two contact points (A, A') or two contact areas located around these points (A, A') are realized between runner (4) and inner wall of pump chamber (2), and in all other angular positions there is only one point (A) of contact or one area of contact located around this point (A) between runner (4) and inner wall of pump chamber (2). Method comprises a step of moving a runner in a pump chamber from an angular position of 0° with respect to an orbital trajectory, in which the runner has two points (A, A') of contact or two located around these points of contact (A, A') of the contact area with the inner wall of the pump chamber and as a result isolates the inlet and outlet area relative to the rest of the pumping chamber, in the direction of movement of the runner along the orbital trajectory to a position, in which the runner and the inner wall of the pump chamber have exactly one contact point (A) or one contact area located around this contact point (A). Proposed method comprises dividing pressure chamber ahead of runner and suction chamber behind runner by contact point between runner and pump chamber inner wall. Method involves a step of sucking breathing gas from the inlet into the suction cavity and feeding the breathing gas from the delivery cavity through the outlet due to continuous movement of the runner in the pump chamber. Using the second runner in the second pumping chamber, the same steps of the method are implemented in a phase-shifted sequence by 180°, so that during circular movement of runners along corresponding orbital trajectories inside corresponding pump chambers with constant movement speed, breathing gas flow is realized at common outlet.

EFFECT: creation of a pulmonary ventilation device including at least one pumping device, which has improved properties with respect to power consumption and heat output as compared to a supercharger.

10 cl, 12 dwg