KR101577931B1

KR101577931B1 - Portable oxygen generator system for emergency treatment

Info

Publication number: KR101577931B1
Application number: KR1020150098084A
Authority: KR
Inventors: 서장혁; 다블유 맷슨 쥬니어 제임스
Original assignee: 대구가톨릭대학교산학협력단
Priority date: 2015-07-10
Filing date: 2015-07-10
Publication date: 2015-12-15

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oxygen generating apparatus, and more particularly, to an oxygen generating apparatus capable of electrically controlling a plurality of valves provided in a positive displacement pump, It provides precise control of volumetric pumps and valves while monitoring patient's airway pressure and oxygen level in the blood while providing stable air supply for patients who have difficulty in spontaneous breathing and very precise control To a portable oxygen generator for first-aid treatment that can stably supply air and oxygen with a predetermined volume and pressure.

Description

TECHNICAL FIELD [0001] The present invention relates to a portable oxygen generator for first-

In general, Positive-Displacement Pumps are used to assist in breathing, such as supplying air for artificial respiration, or supplying oxygen to patients who have difficulty in spontaneously breathing.

Conventional respiratory assist systems constructed using positive displacement pumps, however, were generally driven mechanically so that the user or medical personnel performing the first aid could manually set the system manually and the oxygen delivered to the patient There was an inconvenience to continuously monitor the supply level.

Also recently proposed is a system in which an embedded computer is used to convert some of the airflow supplied to the lungs of patients who are not breathing enough or spontaneous breathing to another direction, The amount of air supplied to the patient can be controlled by switching the direction of the airflow supplied to the patient's lungs since the airflow can not accurately start or stop.

Also, since it is difficult to calculate the amount of air supplied to the patient using a fan or turbo pump, it is only necessary to measure using a complicated and costly flow meter, There is a problem that it is difficult to know the entire flow of the gas supplied to or delivered to the patient.

These computerized systems improve the reliability of the system using a fan or turbo air pump and enable maintenance with low maintenance cost. However, in order to adequately supply the air for artificial respiration and ensure the safety of the patient, these systems have had to be equipped with highly sophisticated sensors for monitoring the pressure of gas supplied to the patient's lungs.

Furthermore, systems controlled to supply air for artificial respiration are used almost everywhere throughout the medical community, especially in patients who require air or gas pressure lower than 40 cm of water vapor pressure. Further, when the water vapor pressure is used at a pressure higher than 40 cm, the turbo pump is very inefficient and has poor response.

In addition, in the case of a currently used fan or turbo pump system, there has been a problem that it has to be very specifically manufactured so as to pass through an oxygen-rich atmosphere. In particular, when a structure made of a general plastic material is continuously exposed to excessive oxygen, it may be easily corroded or oxidized, resulting in failure. In the case of an electric motor, there is a risk of causing a fire. There was a problem to keep in mind.

Korean Utility Model Registration No. 20-0323772 Korean Patent Publication No. 10-2010-0066744

Disclosure of Invention Technical Problem [8] The present invention provides a method and apparatus for electrically controlling a plurality of valves provided in a Positive-Displacement Pump, which can be driven at a high pressure, by an embedded computer, It provides precise control of volumetric pumps and valves, while monitoring patient airway pressure and oxygen levels in the blood, providing a highly precisely controlled volume and pressure for stable air and oxygen Which can be supplied to the first-aid treatment portable oxygen generator.

A portable oxygen generator for first-aid treatment for solving the above-

A pump which is pumped by a control signal transmitted from an embedded computer and sucks air to supply to a patient; An air inflow portion through which air to be supplied to the patient is introduced by a certain amount of capacity by the pumping operation of the pump; An oxygen concentration unit for storing oxygen and sucking oxygen stored in the atmosphere under the control of the embedded computer to store the oxygen; And an oxygen supply unit for additionally supplying oxygen to the air supplied to the patient by the pumping drive in the pump.

At this time,

A pump housing in which an intake port and an exhaust port are formed and in which an interior is empty; A permanent magnet piston installed in the pump housing and driven by a control signal transmitted through a coil wire to perform a pumping operation; And a flexible diaphragm installed at one side of the permanent magnet piston and configured to move according to a pumping operation and to control intake and exhaust of the permanent magnet.

In addition,

A pump housing in which an intake port and an exhaust port are formed, respectively, and the interior thereof is empty; A permanent magnet installed inside the pump housing and driven by a control signal transmitted from an embedded computer to perform a pumping operation; A first diaphragm installed at one side of the permanent magnet in the pump housing; A first wire coil mounted inside the first diaphragm and moving the first diaphragm by a current supplied from the outside; A second diaphragm installed at the other side of the permanent magnet in the pump housing; And a second wire coil mounted inside the second diaphragm and moving the second diaphragm by a current supplied from the outside.

In addition, the air-

An air inlet valve connected to a pipe connected to the intake port to regulate inflow of air to be supplied to the patient; A HEPA filter connected to one end of the air inlet valve for purifying air supplied to the patient; And a signal input unit electrically connected to the embedded computer to provide a control signal to control opening and closing of the air inlet valve.

The oxygen concentrator may further include:

Oxygen concentrator bottles, at least one enclosed reservoir that collects and stores oxygen; And a port valve for controlling opening and closing of both ports of the oxygen concentrating bottle to control the flow of gas or air entering or exiting the oxygen concentrating bottle.

At this time,

A first port valve composed of a solenoid valve capable of controlling opening / closing of any one of two ports provided in each oxygen enrichment bottle; And a second port valve composed of a solenoid valve capable of controlling opening and closing of remaining ports.

In addition, it is preferable to further include a gas inflow control valve between the oxygen enrichment bottle and the first port valve for controlling opening and closing of a path through which atmospheric gas or air directly flows into the oxygen concentration bottle.

In addition,

A control valve for controlling opening and closing of a path through which air is supplied to the patient by pumping driving in the pump; A pressure sensor for measuring a pressure of air supplied to the patient when the control valve is opened; And a supply port to which a breathing assistance device or the like is coupled to supply air to the patient.

The system may further include a signal display unit for monitoring the status of the patient to continuously check whether or not a warning situation has occurred, and to promptly notify the occurrence of a warning situation;

Wherein the signal display unit comprises:

Oximeter worn by the patient to monitor the oxygen level in the blood stream; An LED that is turned on to notify an alert condition in an embedded computer that has determined whether or not a warning condition has occurred based on data acquired from the oximeter; And a retractable tube capable of adjusting an installation position of the LED by a push motor so as to raise or lower a position where the LED is visible.

The present invention is capable of stably supplying air for artificial respiration to patients having difficulty in spontaneously breathing while electrically controlling a plurality of valves provided in a positive displacement pump by an embedded computer and at the same time, It is possible to precisely control volumetric pumps and valves so that air and oxygen can be stably supplied with a very precisely controlled volume and pressure.

1 is a configuration diagram of a portable oxygen generator for first-aid treatment according to the present invention;
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a portable oxygen generator for first-aid treatment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a configuration diagram of a portable oxygen generator for first-aid treatment according to the present invention.

1, the portable oxygen generator for first-aid treatment according to the present invention comprises a pump which is pumped by a control signal transmitted from an embedded computer and sucks air to supply to a patient, An oxygen concentrator for storing oxygen and storing the oxygen introduced into the atmosphere under the control of the embedded computer and storing the oxygen therein; And an oxygen supply unit for additionally supplying oxygen to the air supplied to the patient.

At this time, each time the pumping action is performed, the pump sucks a predetermined amount of air or gas through the intake port 7, and then discharges it through the exhaust port 8 Positive-Displacement Pump). Accordingly, the present invention shows that a volumetric air pump or a volumetric gas pump can be used to significantly reduce the complexity of the ventilator. The adoption of the positive displacement pump makes it possible to significantly reduce the complexity of driving the ventilator to supply air or oxygen, as well as to assist the patient in providing a series of respirations in a stable manner, And the need for medical surveillance can be reduced.

This positive displacement pump is preferable in that it has the ability to suck and discharge the gas or air corresponding to a predetermined constant volume in advance for each pumping action.

That is, the positive displacement pump sucks gas or air corresponding to a known volume in advance in the suction operation, and discharges gas or air corresponding to a predetermined known volume in advance in the discharge operation. In this case, the only physical parameter that needs to be monitored is temperature. Thus, once the temperature is known, it becomes possible to know the specific amount of gas or air being supplied while being pressurized by the positive displacement pump. If the volume of the gas pumped by the positive displacement pump is known, the pressure of the gas can also be calculated.

The implementation of the portable oxygen generator for first-aid treatment using the positive displacement pump and the calculation of the volume and pressure of the pumped gas or air when the pumping operation is performed can be directly managed by one embedded computer But may also be constructed using one or more positive displacement air pumps or positive displacement gas pumps.

In addition, one of the important features of the positive displacement pump is that the individual pumping operations can be electronically controlled to be executed directly by the embedded computer. This volumetric pump responds very quickly after one complete pumping operation has been performed for a very short period of time.

And the volumetric pump has fewer pumping operations or more pumping operations in the embedded computer that generates the control signal, so that even in patients with very small lung capacity, So that it is possible to control only the air to be supplied.

The rapid response of such a volumetric pump makes it possible to implement additional functions that were not realized in the artificial respiration system that has existed so far. And. This rapid pumping operation and reactivity allows for greater control over the pressure and volume over a wider range than the turbo pump system.

In addition, the pumping housing of such a positive displacement pump is independent of the motor and has an oxygen-impervious diaphragm, or an impeller or blades, to prevent oxygen from being directly transmitted to the pump do. This means that, as a part of the pumping operation in the present invention, even when oxygen is supplied to the patient directly, oxygen can be operated very efficiently without concern for corrosion or malfunction.

The pump including the positive displacement pump has a pump housing 1 in which an intake port 7 and an exhaust port 8 are formed and the inside of which is hollow, a coil wire 5 installed inside the pump housing, A permanent magnet piston 2 driven by a control signal transmitted through the permanent magnet piston 6 to perform a pumping operation and a variable member installed on one side of the permanent magnet piston and moving according to a pumping operation to control intake and exhaust And a flexible diaphragm 4 made of a flexible material.

At this time, the coil wires 5 and 6 are electrically connected to an embedded computer (not shown) to receive a control signal for driving the piston 2 and the flexible diaphragm 4, Lt; RTI ID = 0.0 > electrically < / RTI > controlled by signals transmitted from the embedded computer.

In this case, when the pump is driven to move the permanent magnet piston 2 and there is no reverse current to flow the piston 2 through the coil wires 5 and 6, the piston can be returned It is of course possible to provide a coil spring 3 which can be used to make the coil spring 3 open.

The air inlet includes an air inlet valve (9) connected to a pipe connected to the intake port (7) to regulate inflow of air to be supplied to a patient, an air inlet valve connected to one end of the air inlet valve And a signal input unit 11 electrically connected to the embedded computer for controlling the opening and closing of the air inlet valve and receiving a control signal.

The air inlet valve 9 is a solenoid valve that is controlled by a control signal transmitted through the signal input unit 11 and operates to control the flow of input air through the HEPA filter 10 .

The oxygen concentrator includes oxygen concentrator bottles (21, 22), which are at least one closed reservoir for trapping and storing oxygen, and an oxygen concentrator for controlling the opening and closing of both ports of the oxygen concentrator bottle, And a port valve for managing the flow of gas or air entering or exiting the bottle.

Although FIG. 1 shows that the two oxygen concentrating bottles are provided, it is needless to say that the number of the oxygen concentrating bottles can be increased or decreased according to the purpose or use of the portable oxygen generator for first aid treatment according to the present invention .

The port valve includes a first port valve (12, 14) composed of a solenoid valve capable of controlling the opening and closing of one of two ports provided in each oxygen enrichment bottle, and a second port valve And a second port valve (23, 26) made up of a solenoid valve. At this time, the port formed on the upper portion of the oxygen concentration bottle is referred to as a first port valve regardless of the number of oxygen concentration bottles, and the port formed below the oxygen concentration bottle is collectively referred to as a second port valve.

The first port valve (12, 14) is opened or closed by a control signal received at an input unit (13, 15) electrically connected to an embedded computer, and enters the oxygen concentration bottles (21, 22) 21, 22), including the flow rate of gas or air.

The second port valves 23 and 26 are also opened and closed by control signals received by the input units 24 and 25 electrically connected to the embedded computer and the gas and air from the oxygen concentration bottles 21 and 22 As shown in FIG. As the second port valve (23, 26) is opened and closed, oxygen on the oxygen concentrating bottle is added to or branched from the air supplied to the patient after being sucked in from the pump, thereby assisting the patient's breathing.

At this time, as shown in FIG. 1, between the oxygen concentrating bottles 21 and 22 and the first port valves 12 and 14, a path 16 in which atmospheric gas or air flows directly into the oxygen concentration bottle is opened and closed And a gas inflow control valve (17, 19) for controlling the gas flow control valve (17, 19). In this case, it is preferable that the gas inflow control valves 17 and 19 are electrically connected (18 and 20) to the embedded computer to constitute a solenoid valve for receiving a control signal for controlling the opening and closing of the gas inflow control valve.

The oxygen supply unit may include a control valve 27 for controlling the opening and closing of a path through which air is supplied to the patient by the pumping operation of the pump, a pressure sensor 27 for measuring the pressure of air supplied to the patient when the control valve is opened And a supply port 32 to which a respiratory assist device or the like is connected to supply air to the patient.

The control valve 27 is electrically connected to the embedded computer so that the control signal is transmitted to the patient so that the path for supplying gas or air to the patient can be managed by the control of the embedded computer.

In addition, the pressure sensor 29 is constituted by a high-pressure sensor for collecting data on gas or air supplied to the patient, and the data measured by the pressure sensor is transmitted to an embedded computer 30 which is electrically connected So that a profile of the pressure and volume supplied to the patient can be generated and grasped.

The oxygen supply unit may further include a pressure limiting valve 31 that is not electrically connected to the embedded computer but can be mechanically opened and closed as shown in FIG. This pressure limiting valve 31 can be used to provide an absolute limit to the pressure of the air or gas that can be supplied to the patient while calculating the volume of gas delivered to the patient in real time while monitoring the patient's airway. Thereby preventing the air from being supplied with excessive pressure that would cause damage to the patient's airway.

1, the portable oxygen generator for first-aid treatment according to the present invention includes a signal display unit for continuously monitoring whether or not a warning condition is generated by monitoring the condition of a patient and promptly notifying the occurrence of a warning condition It is preferable to further comprise.

The signal display unit includes an oximeter 33 worn by the patient to monitor the level of oxygen in the blood stream, and an indicator that indicates whether or not a warning condition has occurred based on the data acquired from the oximeter. And a retractable tube (36) capable of adjusting the installation position of the LED by a push motor (37) so as to raise or lower a position where the LED is visible.

At this time, the data acquired by the oximeter 33 can be controlled by an embedded computer, which can control the gas supplied to the patient or to block the loop in which gas or air is supplied, in order to manage oxygen in the air stream .

In addition, the LED 35 is composed of a light emitting diode that emits light so that it can be seen even in the sun so that a warning situation may occur while gas or air is supplied to the patient through a ventilator.

In addition, the telescoping riser 36 is extended or reduced by a push motor 37 driven by a control signal transmitted from an embedded computer 38, which is electrically connected to the telescoping riser 36, .

As described above, in the portable oxygen generator for a first-aid treatment comprising a positive displacement pump, since the positive displacement pump has not only a considerable pressure but also a capability of generating a considerable degree of vacuum, the same pumping Operation can also be used to concentrate oxygen. And, due to the speed of the pump, a simple system of electrically controlled solenoid valves may be used in switching pumping operations between the following functions to concentrate the oxygen.

Ability to vacuum input air with nitrogen absorbing chemicals

The ability to push oxygen-rich air to the patient

The function of pushing the pressurized air in the opposite direction through the oxygen concentrator to push the nitrogen through the nitrogen absorbing chemical

The ability to keep the patient's airway at the minimum specified pressure

All of these functions are designed to keep the pressure constant while the embedded computer is monitoring the patient and to determine how much the patient's airway volume and pressure are changing from the prescription to find a token to check whether voluntary breathing is taking place. .

An important feature of the invention thus constituted is that the computer can be controlled while minimally monitoring the patient's airway pressure and oxygen level in the patient's blood in a closed loop state, This system, equipped with a pump and solenoid valve, can deliver oxygen to the patient with a very precisely controlled volume and pressure while performing oxygen administration with a level of precision that has not been possible to date.

Also, according to the present invention configured as described above, it is possible to provide a certain level of efficiency that was not possible with the conventional turbo pump technology. Such a computer controlled volumetric pump consumes a minimum amount of power to supply gas to the patient and maintain its supply. The system constructed with the portable oxygen generator for first-aid treatment according to the present invention thus constituted has the highest efficiency among the oxygen concentration and transmission systems developed so far.

The portable oxygen generator for first-aid treatment, which is implemented using a positive displacement pump in accordance with the present invention, further comprises a controller for calculating the pressure and volume based on the control capability of the embedded computer, (PV = nRT). Thereby providing a precise and costly sensor as supplied by a continuously driven turbo pump and then computing a portion of the gas flow with a high volume and using it to control the valves while reducing its reliability .

In addition, the present invention can realize a high level of reactivity while minimizing the layout and design changes for the first-aid portable oxygen generator capable of supplying a rich air or gas, so that it can be used in a situation where an emergency epidemic is prevalent , Which is equipped with a private wireless network technology that enables the use of remote terminals to monitor and control each oxygen generating device that supplies gas or air to one, several or many ventilators, Type device can be implemented. Such a device may be equipped with a wire whip equipped with a signal indicator (annunciator) with brightly lit LEDs to indicate the condition of the ventilator so that the device in a warning state can be displayed to the outside There will be. At this time, it is needless to say that, if the epidemic is prevalent, it can be configured to simultaneously indicate the status of many systems in a relatively close vicinity.

Such a device having a signal display unit which can be used for judging whether or not a warning state is generated in a plurality of devices under monitoring can be used for a large number of patients even though the available medical personnel are insufficient, If you need to take care of it at the same time, it can be implemented and used in the form of a small terminal.

In addition, the portable oxygen generator for first aid treatment according to the present invention may be made in another embodiment in which a pump is further added as shown in FIG.

2, in another embodiment of the portable oxygen generator for first-aid treatment according to the present invention, by adding a second pump having a displacement volume different from that of the first pump, the pumping characteristics of the positive displacement pump So that it can be adjusted.

By adding a pump having such a different displacement, one pump can enable the patient to breath while the other pump drives the oxygen concentrator. In addition, one pump can supply air by driving to enable breathing in accordance with a small vital capacity, while other pumps can supply air by driving to enable breathing in accordance with a large vital capacity.

Accordingly, FIG. 2 shows that two pumps are provided in one pump housing. In this case, the configurations of the air inlet, the oxygen enrichment unit, the oxygen supply unit, the signal display unit, and the like are the same as those shown in FIG. 1 except that the two pumps are provided. And the like can be easily obtained by simple design modification. In the following, only the structure inside the pump housing will be described.

The pump shown in FIG. 2 includes a pump housing 201 in which an intake port and an exhaust port are formed, respectively, and in which an interior is empty, a pump housing 201 installed in the pump housing and driven by a control signal transmitted from an embedded computer, A first diaphragm 213 mounted on one side of the permanent magnet inside the pump housing, and a second diaphragm 213 mounted on the inside of the first diaphragm, A second diaphragm 223 provided at the other side of the permanent magnet in the pump housing, and a second diaphragm 223 mounted inside the second diaphragm, And a second wire coil 224 for moving the second diaphragm by a current supplied from the outside.

At this time, the pump housing 201 is provided with a first intake port 235 and a first exhaust port 236, which are the paths through which air is drawn by the intake and exhaust by the first diaphragm 213, A second intake port 245 and a second exhaust port 246, which are the paths through which air is drawn by the intake and exhaust by the second diaphragm 223, And is configured to provide independent flow of air controlled by each diaphragm.

The first wire coil 214 mounted in the first diaphragm and the second wire coil 224 mounted in the second diaphragm are connected to each other by the control of the embedded computer And a part of the magnetic force capable of moving the first and second diaphragms is formed by the supplied current.

The first intake port 235 and the first exhaust port 236 may be provided with valves for respectively controlling the flow of gas sucked and discharged by the pumping operation, valve, or a solenoid operated valve controlled by an embedded computer.

In order to perform the pumping operation, such a pump can move the first and second diaphragms, which are small and light, without moving the permanent magnets having a relatively heavy weight, thereby making it easy to drive. In this way, even if the diaphragm is moved instead of the permanent magnet in the pumping operation, the pressure of the gas or the air flowing can be made almost equal to the volume.

In addition, when the solenoid valve is controlled by the embedded computer, it is possible to uniformly carry out the method of flowing the gas through the desiccant in order to remove the steam at the input end, such as the case of controlling the high performance pump, The exhaust gas may be sent in the opposite direction to add back. It can also be used to protect nitrogen from nitrogen contamination from water pollution.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

1: Pump housing 2: Permanent magnet piston
3: coil spring 4: flexible diaphragm
5, 6: coil wire 7: intake port
8: exhaust port 9: air inlet valve
10: HEPA filter 11: Signal input section
21, 22: oxygen concentrating bottle 12, 14: first port valve
23, 26: second port valve 13, 15, 25, 24: input port
17, 19: gas inflow control valve 16: inflow path
27: Control valve 29: Pressure sensor
31: Pressure limiting valve 32: Supply port
33: Oximeter 35: LED
36: Retractable tube 37: Push motor
201: Pump housing 202: Permanent magnet
213: first diaphragm 214: first wire coil
223: second diaphragm 224: second wire coil
235: first intake port 236: first exhaust port
245: second intake port 246: second exhaust port

Claims

A pump which is pumped by a control signal transmitted from an embedded computer and sucks air to supply to a patient;
An air inflow portion through which air to be supplied to the patient is introduced by a certain amount of capacity by the pumping operation of the pump;
An oxygen concentration unit for storing oxygen and sucking oxygen stored in the atmosphere under the control of the embedded computer to store the oxygen; And
And an oxygen supply unit for additionally supplying oxygen to the air supplied to the patient by pumping driving in the pump,
The pump includes:
A pump housing in which an intake port and an exhaust port are formed and in which an interior is empty;
A permanent magnet piston installed in the pump housing and driven by a control signal transmitted through a coil wire to perform a pumping operation; And
And a flexible diaphragm installed at one side of the permanent magnet piston and configured to move according to a pumping operation and to control intake and exhaust of the permanent magnet piston.

delete

A pump which is pumped by a control signal transmitted from an embedded computer and sucks air to supply to a patient;
An air inflow portion through which air to be supplied to the patient is introduced by a certain amount of capacity by the pumping operation of the pump;
An oxygen concentration unit for storing oxygen and sucking oxygen stored in the atmosphere under the control of the embedded computer to store the oxygen; And
And an oxygen supply unit for additionally supplying oxygen to the air supplied to the patient by pumping driving in the pump,
The pump includes:
A pump housing in which an intake port and an exhaust port are formed, respectively, and the interior thereof is empty;
A permanent magnet installed inside the pump housing and driven by a control signal transmitted from an embedded computer to perform a pumping operation;
A first diaphragm installed at one side of the permanent magnet in the pump housing;
A first wire coil mounted inside the first diaphragm and moving the first diaphragm by a current supplied from the outside;
A second diaphragm installed at the other side of the permanent magnet in the pump housing; And
And a second wire coil mounted inside the second diaphragm and moving the second diaphragm by a current supplied from the outside.

The method according to claim 1 or 3,
The air-
An air inlet valve connected to a pipe connected to the intake port to regulate inflow of air to be supplied to the patient;
A HEPA filter connected to one end of the air inlet valve for purifying air supplied to the patient; And
And a signal input unit electrically connected to the embedded computer for controlling opening and closing of the air inlet valve and receiving a control signal.

5. The method of claim 4,
The oxygen concentrator may include:
Oxygen concentrator bottles, at least one enclosed reservoir that collects and stores oxygen; And
And a port valve for controlling the opening and closing of both ports provided in the oxygen concentration bottle to control the flow of gas or air entering or exiting the oxygen concentration bottle.

6. The method of claim 5,
The port valve includes:
A first port valve composed of a solenoid valve capable of controlling opening / closing of any one of two ports provided in each oxygen enrichment bottle; And
And a second port valve composed of a solenoid valve capable of controlling the opening and closing of remaining ports.

The method according to claim 6,
And a gas inflow control valve for controlling the opening and closing of the path through which the atmospheric gas or air directly flows into the oxygen concentration bottle between the oxygen concentration bottle and the first port valve Generating device.

8. The method of claim 7,
The oxygen supply unit includes:
A control valve for controlling opening and closing of a path through which air is supplied to the patient by pumping driving in the pump;
A pressure sensor for measuring a pressure of air supplied to the patient when the control valve is opened; And
And a supply port to which a breathing assistance device or the like is coupled to supply air to the patient.

9. The method of claim 8,
Wherein the oxygen supply unit further includes a pressure restriction valve that can be mechanically opened and closed without electrical control of the embedded computer.

The method according to claim 1 or 3,
Further comprising: a signal display unit for monitoring the status of the patient to continuously check whether or not a warning situation has occurred, and for promptly notifying the occurrence of a warning situation;
Wherein the signal display unit comprises:
Oximeter worn by the patient to monitor the oxygen level in the blood stream;
An LED that is turned on to notify an alert condition in an embedded computer that has determined whether or not a warning condition has occurred based on data acquired from the oximeter; And
And a retractable tube capable of adjusting an installation position of the LED by a push motor so as to increase or decrease the position of the LED.