Assisted breathing apparatus and method

An assisted breathing apparatus (1) comprising:

• a gas inlet section (4) having an air inlet (5), which is configured to be coupled to an air promotion device (6),
• an oxygen inlet (7), both having clamping and sealing devices with a wall of the assisted breathing apparatus (1),
• an air/oxygen outlet channel (9) including a termination adapted to be connected to an extension for insertion into a patient through a respiratory assistance accessory during the inspiration process,
• a control center arranged on an electronic board containing a circuit capable of executing actions ordered by a microcontroller using step, block, open, close, rotation direction, and interruption or advance commands of an electric current for power-on or power-off interruption device, wherein may be controlled using position and/or speed commands or receive position, speed, pressure, oxygen level, carbon dioxide level, or electric current intensity information from a sensor configured for these purposes,
• wherein the air inlet (5) is connected to an air solenoid valve (14) having an inlet and a first outlet and a second outlets, wherein the inlet is connected to the air pressure regulator (12), and the first outlet is coupled to a safety valve (15), and the second outlet of the air solenoid valve (14) is connected to a flow control valve (16), which includes a lateral coupling with a stepper motor (17), whose shaft controls the opening and closing of said flow control valve (16), and wherein a regulated normal air conduit (18) is subsequently provided, which is connected by device a conduit to a dual-inlet single-outlet connector (32),
• and for oxygen intake, it comprises an oxygen solenoid valve (23), which has an inlet and two outlets, wherein the inlet is connected to the initial oxygen flow conduit (22), and the first outlet is coupled to a safety valve (25) that allows the discharge or release of fluid in case a predetermined value is exceeded, and wherein the second outlet (24) of the oxygen solenoid valve (23) is connected to a flow control valve (26), which includes a lateral coupling with a stepper motor (27), whose shaft controls the opening and closing of said flow control valve (26), and wherein a regulated oxygen conduit (28) is subsequently provided, which is coupled to an oxygen sensor connection (29) receiving on an upper part an oxygen sensor (30), while in continuation with the regulated oxygen conduit (28), a conduit is arranged that connects to a non-return valve (31), connected to an oxygen conduit (33) that is coupled to a dual-inlet single-outlet connector (32), which also receives the regulated normal air conduit (18), and whose outlet is connected to a humidification device (34) containing water, and wherein said humidification device (34) conducts the air/oxygen mixture outside its structure by device of a container outlet conduit (35), which deposits the air/oxygen and humidity mixture into an intermediate conduit (36), which includes a connection device at one of its ends that, through a coupling device, directs the mixture contained in the container outlet conduit (35) towards a mixing conduit perpendicularly, until reaching a conduit parallel to the intermediate conduit (36), which is connected to a flow sensor (37), which is connected to a secondary conduit for air/oxygen mixture (38), directed toward a mixture flow guide (39), which comprises an air/oxygen mixture outlet connection (40) internally provided with a Venturi-type flowmeter to measure the flow of the air/oxygen mixture, and wherein the mixture outlet arrangement is subsequently directed outside the assisted breathing apparatus (1) and is coupled to an external flow insertion device;
• and
• wherein during the exhalation process, the fluid with CO2 is channeled through the air/oxygen mixture outlet connection (40) in the opposite direction to the inspiration process, wherein the mixture with CO2 is directed toward a CO2 outlet (42), which is continuously arranged with the linear portion of the mixture flow guide (39), and wherein said CO2 outlet is interconnected with a CO2 outlet solenoid valve (43), which finally conducts this gas, through a gas outlet conduit (44), to a PEEP valve (45), which maintains, through the release of CO2 into the atmosphere, a positive pressure in the respirator arrangement and, therefore, a residual volume at the end of exhalation, and wherein the PEEP valve (45) is controlled in its opening and closing level by a PEEP valve servomotor (46), which is in turn controlled by the microcontroller.