APPARATUS FOR INFUSION UNDER PRESSURE Russian patent published in 2002 - IPC

FIELD: medicine. SUBSTANCE: the apparatus for infusion of liquid under pressure has a chamber containing at least a single infusion packet. The pressure apparatus in the chamber feeds pressure to the infusion packet for infusion of introduced liquid to the infusion tube. The pressure apparatus comprises a pneumatic pressure chamber and a pressure source. Placed between the accumulating chamber and the pressure source is a pressure control valve considerably reducing the pressure in the pressure source relative to the maximum pressure in the chamber. The pressure source has a practically non-extensible air-proof flexible membrane, which separates the chamber into the infusion chamber and pressure chamber and which exerts pressure directly on the packet. Connected to the infusion tube or its extension from the infusion packet is at least a single flow control valve producing a gauged amount of liquid per unit of time. EFFECT: continuous introduction of liquid irrespective of the external sources of energy and facilitated determination of the amount of introduced liquid per unit of time. 7 cl, 9 dwg