LIQUID ARTIFICIAL PULMONARY VENTILATION APPARATUS Russian patent published in 2024 - IPC A61H31/00 A61M16/00 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to a liquid artificial pulmonary ventilation apparatus. Apparatus comprises a pump, a respiratory fluid storage tank equipped with an oxygenator and a thermostat, four electromagnetic valves connected to each other by pipelines into a respiratory fluid circulation system, scales for measuring the mass of the storage tank, a traction pressure gauge connected to the outlet of the liquid artificial pulmonary ventilation apparatus, and a control unit. Pump output is hydraulically connected through the first electromagnetic valve to the input of the accumulating tank, the output of which is hydraulically connected to the pump input through the second electromagnetic valve. Pump output is hydraulically connected to the input of the third electromagnetic valve, the output of the fourth electromagnetic valve is hydraulically connected to the pump input. Output of the balance and the output of the traction gauge are electrically connected to the first and second inputs of the control unit, and four control outputs of the control unit are electrically connected to the control inputs of the electromagnetic valves. Apparatus comprises a safety valve hydraulically connected in parallel to the second electromagnetic valve to compensate for a drop in the flow rate of the respiratory fluid extracted from the lungs. Apparatus includes a first flow meter to receive a signal to the control unit on reaching a given volume of the fluid passed through the first flow meter when supplying the respiratory fluid from the storage tank to the lungs through the second electromagnetic valve. Apparatus has a pump, a third electromagnetic valve and a second flow meter for receiving a signal to the control unit on the termination of the flow of respiratory fluid extracted from the lungs through the fourth electromagnetic valve, the pump and the first electromagnetic valve. Pump is made in the form of an impeller type pump.

EFFECT: higher safety of liquid pulmonary ventilation.

2 cl, 1 dwg