APPARATUS FOR ARTIFICIAL LUNG VENTILATION Russian patent published in 2009 - IPC A61H31/02 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to devices of auxiliary lung ventilation in adults and children with diminished breath and can be used in intensive care departments, as well as in specialised respiratory rooms for non-drug treatment of patients with chronic nonspecific lung diseases. Apparatus contains patient's T-piece, flow rate sensor, gas-distributing device, control device, device of breath signal processing, including accumulating adder, five multipliers, adder, two dividers, count metre, converter, two comparison devices and device of logical addition, on the first input of patient's T-piece air is supplied, its first output being directed into atmosphere, second output is connected with input of flow rate sensor, whose output is connected with first input of control device, first output of control device is connected with input of gas-distributing device, whose output is connected with second input of patient's T-piece, its third output is connected with man, second output of control device is connected with device of breath signal processing, namely with input of accumulating adder, whose second input is connected with first input of count metre, output of accumulating adder is connected with input of first multiplier, whose second input is connected with output of first divider, output of said divider is connected with input of second multiplier and sixth output of control device, output of first multiplier is connected with input of adder, whose second input is connected with output of converter, whose input is connected with output of count metre, output of adder is connected with input of fourth multiplier, whose other input is connected with output of third multiplier, first input of third multiplier is connected with output of second multiplier, output of second divider is connected with second input of third multiplier, input of second divider is connected with output of fifth multiplier, output of fourth multiplier is connected with first input of both comparison devices, on other inputs of these comparison devices threshold values are supplied, outputs of comparison devices are connected with input of device of logic addition, whose output is connected with second input of count metre and second input of control device.

EFFECT: invention ensures extension of functional possibilities of apparatus of artificial lung ventilation and increase of efficiency of its application in medical practice due to introduction of device providing sequential analysis of input data basing on collected information about dispersion and input signal expectation value.

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