STERIALIZABLE PUMPING DEVICE Russian patent published in 2017 - IPC A61B17/3203 F04B1/02 F04B53/10 

FIELD: engines and pumps.

SUBSTANCE: pumping device (10) for using in medical devices, contains a housing (13) of the pump, including two parts (14, 15); a suction channel (16) and discharge channel (17) in the first part (14) of the housing; at least two cylinders (22, 26) of the pump in the second part (15) of the housing; recesses (31) of the valve chambers in one of the parts (14, 15) of the housing and locks (32) ofvalve chambers, which are refered to recesses (31) of valve chambers for their locking to form the valve chamber; at least one locking component of the valve, which is made permeable for the sterilizing gas. The cylinders (22, 26) adapted to contain the pistons (25, 29) of the pump, at that by two channels (23, 24; 27, 28) are extended from the cylinders. The suction channel (16), the pressure channel (17) and channels (23, 24, 27, 28) of the pump are ended in the valve chamber.

EFFECT: invention allows to penetrate the sterilizing gas into the channel without a lot of pressure to the locking component, which prevents adhesion of the locking valve to the seat.

17 cl, 6 dwg