KR102531186B1 - Life support apparatus and oxygen supply method using the same - Google Patents

Abstract

Disclosed herein is a life support system that senses a patient's breathing state and automatically controls the amount of oxygen supplied to the patient.
According to one embodiment of the disclosure disclosed herein, a life support device includes an oxygen container part including an oxygen cylinder, a valve part connected to the oxygen cylinder, a mask connected to the valve part, and a mask connected to the valve part to protect the wearer of the mask. A sensor unit for sensing an exhalation pressure, a control unit connected to the sensor unit and the valve unit to control the valve unit, and a power supply unit connected to the sensor unit and the control unit.

Description

Life support device and oxygen supply method using it {LIFE SUPPORT APPARATUS AND OXYGEN SUPPLY METHOD USING THE SAME}

The disclosure herein relates to a life support system, and relates to a life support system that supplies oxygen.

Unless otherwise indicated herein, material described in this section is not prior art to the claims in this application, and it is not admitted that the material described in this section is prior art.

In general, a portable life support device including a small oxygen ventilator is a device that maintains a patient's life so that the patient can safely move to a hospital by using oxygen supplied from an oxygen cylinder for a patient having difficulty in spontaneous breathing.

However, existing life support devices have a disadvantage in that it is difficult to discharge air such as carbon dioxide, which must be discharged from the inside of the lungs to the outside, because it repeats a drive to supply oxygen periodically regardless of the amount of oxygen or air filled in the lungs.

In this regard, Korean Utility Model Registration No. 20-0433837 discloses a portable oxygen respirator, and Korean Patent Registration No. 10-1549684 discloses a multi-person portable respirator.

However, the existing inventions do not disclose a technique for supplying oxygen appropriately according to the patient's breathing condition.

An object of the present invention is to provide a life support device that detects a patient's breathing state and automatically controls the amount of oxygen supplied to the patient.

In addition, it is not limited to the technical problems as described above, and it is obvious that other technical problems may be derived from the following description.

According to one embodiment of the disclosed contents, the life support device includes an oxygen container part including an oxygen cylinder, a valve part connected to the oxygen cylinder, a mask connected to the valve part, and a mask wearer's expiratory pressure or A sensor unit for sensing intake pressure, a control unit connected to the sensor unit and the valve unit to control the valve unit, and a power supply unit connected to the sensor unit and the control unit are included.

In addition, the valve part is formed as a solenoid valve, and is automatically driven according to the exhalation pressure or intake pressure measured by the sensor part, so that the oxygen container part and the mask can be blocked for a predetermined time.

In addition, the life support device may further include a case in which the oxygen container unit, the valve unit, the mask, the sensor unit, the control unit, and the power supply unit are accommodated and a door is formed.

In addition, the sensor unit measures the pressure of expiration and inspiration generated from the mask, and when the measured expiration pressure or intake pressure is less than a preset pressure, transmits a drive signal to the valve unit to supply oxygen toward the mask. can make it

In addition, the mask may include a mask body connected to the valve unit through a hose, and valves connected to both sides of the mask body to discharge exhaled gas to the outside and block the inflow of external air.

According to one embodiment disclosed in the present specification, the life support device senses the pressure generated by the patient's breathing and automatically drives the valve unit that adjusts the amount of oxygen supplied to the mask according to the change in the expiratory pressure or inspiratory pressure. It has the advantage of being able to control the patient's comfortable exhalation.

In addition, the life support device has the advantage of being highly portable as it can be accommodated inside the case, and gas generated from the patient is effectively discharged to the outside through a one-way valve attached to the mask.

In addition, since the effects of the present invention described as described above are naturally exhibited by the configuration of the described contents regardless of whether the inventor recognizes them, the above-described effects are only a few effects according to the described contents, and all the effects that the inventor grasps or realizes should not be accepted as written.

In addition, the effect of the present invention should be additionally grasped by the overall description of the specification, and even if it is not described in an explicit sentence, those skilled in the art to which the described contents belong will have such an effect through this specification. If the effect can be recognized as such, it should be regarded as the effect described in this specification.

1 is a block diagram of a life support device according to an embodiment of the present specification.
Figure 2 is an exploded perspective view of the life support system of Figure 1;
Figure 3 is a front view of a part except for the case of the life support device of Figure 2;
Figure 4 is a perspective view looking at the life support device of Figure 2 from another angle.
Figure 5 is a schematic diagram showing the state of the display of the life support device of Figure 1.
6 is a flowchart showing an oxygen supply method according to an embodiment of the present specification.

Hereinafter, with reference to the accompanying drawings, look at the configuration, operation and effect of the life support device according to a preferred embodiment. For reference, in the following drawings, each component is omitted or schematically illustrated for convenience and clarity, the size of each component does not reflect the actual size, and the same reference numerals refer to the same components throughout the specification. , and reference numerals for the same components in the individual drawings will be omitted.

1 to 5, the life support device 100 includes a case 120, an oxygen container unit 200, a power supply unit 300, a valve unit 400, a differential pressure valve 500, a mask 600 , It includes a sensor unit 700, a control unit 800 and a display 900.

The case 120 includes a door 122 and a buffer 123 .

The case 120 is formed in a box shape in which a rectangular parallelepiped space 10 is opened toward the front, and a door 122 that can be opened and closed through hinges formed at the bottom is formed at the front.

The buffer unit 123 is formed in the shape of a rectangular parallelepiped with a porous polymer material having high elasticity or shrinkage like a sponge, and a portion attached to the inner surface of the door 122 is formed of a metal plate and is surface-coupled with the inner surface of the door 122. .

The oxygen container unit 200, the power supply unit 300, the valve unit 400, the differential pressure valve 500, the mask 600, the sensor unit 700, the control unit 800, and the display 900 are inside the case 120. is inserted into the space 10 of

The oxygen container unit 200 includes a container case 210, an oxygen cylinder 220, and a control valve 230.

The oxygen container unit 200 has an air cylinder for supplying oxygen disposed therein, a valve for controlling oxygen discharge is formed on one side, and a valve unit 400 that is actively driven by being connected to the valve unit 400 through a hose. Oxygen is supplied to the mask 600 through.

The container case 210 is formed in a block shape with an inner cylindrical space open to one side, and is inserted into the space 10 to be disposed inside the case 120 .

The oxygen cylinder 220 is inserted into the inner space of the container case 210 from one side of the container case 210 or separated from the container case 210, and a control valve 230 connected to the opening is coupled to one end.

The control valve 230 is detachably or attachably coupled to one side opening of the oxygen cylinder 220, and can control the amount of oxygen discharged from the oxygen cylinder 220 by adjusting a valve formed in the front.

The power supply unit 300 is formed in the form of a vertical plate extending toward the upper surface perpendicular to the upper surface of the container case 210, is disposed on the upper side of the other side of the container case 210, can be connected to an external power source, and has a battery inside. is placed

The power supply unit 300 is electrically connected to the valve unit 400, the control unit 800, and the display 900 to supply power to the valve unit 400, the control unit 800, and the display 900.

The valve unit 400 is disposed above the control valve 230 and is connected to the control valve 230 through a hose so that oxygen in the oxygen tank 220 flows in and is operated according to an external control signal to move to the hose. block the movement of oxygen.

The valve unit 400 is a solenoid valve, and is electrically connected to the sensor unit 700 or the control unit 800, and the sensor unit 700 sends a detection signal to the valve unit 400 through sensing of the amount of air inside the lungs. When transmitted, the valve unit 400 is operated to block oxygen moving to the mask 600 or connect the passage to move.

The valve unit 400 may directly receive the detection signal of the sensor unit 700 or receive it through the control unit 800, and when it is received through the control unit 800, according to the range of the detection signal preset by the user. Values of detection signals required to operate the valve unit 400 may be set in detail.

The differential pressure valve 500 includes a valve body 510 , a first hose 520 and a second hose 530 .

The differential pressure valve 500 is disposed above the valve unit 400 and is connected to the valve unit 400 through a hose, and the pressure between the control valve 230 and the valve unit 400 and the differential pressure valve 500 and the mask Maintain the pressure between (600) at the same or similar level.

The valve body 510 is disposed between the valve unit 400 and the mask 600 and is connected to the valve unit 400 and the mask 600 through a hose, respectively, and the first and second hoses 520 on the front side. , 530) are formed.

One end of the first hose 520 is connected to the front of the valve body 510 and is connected to the inside of the valve body 510, and the other end extends toward the lower portion of the hose between the control valve 230 and the valve unit 400. connected with

One end of the second hose 530 is connected to the front outside of the valve body 510 and connected to the inside of the valve body 510, and the other end extends to the other side and is connected to the hose connected to the mask 600.

Therefore, the pressure differential valve 500 is such that the pressure of oxygen discharged between the control valve 230 and the valve unit 400 and the pressure of oxygen moving between the pressure differential valve 500 and the mask 600 are equal or control to be similar.

Meanwhile, the differential pressure valve 500 may be separated from the life support device 100, and in this case, the valve unit 400, the mask 600, and the sensor unit 700 may be connected to each other through a three-way valve.

The mask 600 includes a mask body 610 , valves 620 and 630 and a protrusion 640 .

The mask 600 is connected to the pressure differential valve 500 through a hose, and oxygen transferred to the mask 600 through the differential pressure valve 500 is moved to the lungs of the patient wearing the mask 600 to maintain the patient's breathing. let it

One end of the mask body 610 is formed in the shape of a mask covering a part of the patient's face, and the other end is formed to extend by a predetermined distance while being reduced in volume toward the front from one end of the mask body 610.

The mask body 610 is formed with side holes 611 and 612 that are open to both sides of the mask body 610 while being connected to the inner space of the mask body 610 covering the face, and the side holes 611 and 612 Valves 620 and 630 are respectively coupled to each of these.

In the lower part of the mask body 610, a lower hole 613 is formed, which is connected to the inner space of the mask body 610 and opens to the lower part of the mask body 610. An extended hose is coupled.

On the other hand, a communication unit, a battery, and a human body sensor may be attached to the inside of the mask body 610, and when the patient wears the mask 600, the human body sensor detects the patient and is connected wirelessly to the control valve ( 230) to automatically provide oxygen to the patient.

Each of the valves 620 and 630 is formed in a circular valve shape and coupled to each of the side holes 611 and 612, and the inside of the mask body 610 while the mask body 610 is worn on the patient's face. Exhaled air is allowed to escape from the inner space of the mask body 610 to the outside while blocking external air from entering the space.

The protruding portion 640 is formed so that a portion of the front surface of the mask body 610 protrudes forward by a predetermined distance, is made of a material having magnetism attached to metal, and is a buffer portion attached to the inside of the door 122 ( 123) and is magnetically coupled to the shock absorber 123.

Therefore, the oxygen container unit 200, the power supply unit 300, the valve unit 400, the differential pressure valve 500, the mask 600, the sensor unit 700, and the control unit 800 are installed inside the case 120. When the space 10 is sealed by lifting the door 122 while being disposed inside the 120, the buffer 123 surrounds the protruding part 640, and the protruding part 640 forms a metal plate of the buffering part 123. There is an advantage in that the mask 600 is safely fixed by being magnetically coupled with the mask 600 .

The sensor unit 700 is disposed above the container case 210 and is electrically connected to the valve unit 400, the differential pressure valve 500 or the control unit 800, and the valve unit 400 or the differential pressure valve 500 The pressure generated by the patient's exhalation or inhalation is sensed from the inside of the patient's lungs, which changes according to the pressure value.

The sensor unit 700 transmits a detection signal to the valve unit 400 or the control unit 800 when the pressure due to expiration or intake is sensed.

The valve unit 400 receiving the detection signal is driven to block the movement of oxygen supplied to the mask 600, and the control unit 800 receiving the detection signal gradually moves oxygen according to the pressure value of the detection signal. Controls the valve unit 400 to shut off. For example, the control unit 800 may control the valve unit 400 to block the movement of oxygen step by step in proportion to the increase in the pressure value of the detection signal. The control unit 800 controls the valve unit 400 when the expiratory pressure measured by the sensor unit is higher than the preset expiratory pressure, the intake pressure measured by the sensor unit is higher than the preset intake pressure, or the oxygen supply time has exceeded. can be blocked.

The exhaled air of the patient generated in the mask 600 is discharged to the outside of the mask 600 through the valves 620 and 630 for a predetermined time during which the valve unit 400 blocks oxygen moving to the mask 600, After exhalation gas is discharged, the valve unit 400 is automatically operated to supply oxygen to the mask 600 .

On the other hand, the mask 600 can detect the patient's respiration rate through a sensor attached to the mask body 610, and the sensor unit 700 can measure oxygen saturation by being connected to a pulse oximeter connected to the patient's finger. And, the measured respiratory rate and oxygen saturation are transmitted to the controller 800 and the display 900.

In addition, the sensor unit 700 is connected to a separate heart rate monitor attached to the finger to measure the patient's heart rate, and wirelessly through a communication module formed in the control unit 800 through a smart watch worn on the patient's wrist blood pressure and body temperature can be measured.

The control unit 800 is disposed in front of the power unit 300 and above the container case 210, a metal plate is disposed on the front surface to be magnetically coupled to the mask body 610, and a door 122 seals the space 10. In this state, the mask 600 is securely fixed.

The control unit 800 is electrically connected to the power supply unit 300, the valve unit 400, the sensor unit 700, and the display 900, and transmits a detection signal of the sensor unit 700 with power supplied from the power supply unit 300. After analysis, the amount of oxygen passing through the valve unit 400 is controlled through driving control of the valve unit 400 .

Meanwhile, a UV light emitting unit may be disposed on a part of the front surface of the control unit 800 to which the mask 600 is magnetically attached. ) Disinfects the mask body 610 by generating ultraviolet rays into the inner space.

As shown in FIG. 5, the display 900 is formed on the upper surface of the case 120 and is electrically connected to the power supply unit 300, the valve unit 400, the sensor unit 700, and the control unit 800. Measurement values generated by the power supply unit 300, the valve unit 400, the sensor unit 700, and the control unit 800 are displayed.

On the display 900, a supply switch 910 used to supply oxygen to the mask 600 and a stop switch 912 for stopping oxygen moving to the mask 600 by operating the valve unit 400 are displayed. , It is possible to operate the supply switch 910 or the stop switch 912 through a touch.

On the side screens of the supply switch 910 and the stop switch 912, the time for supplying oxygen to the mask 600 and the target value setting value of the oxygen supply pressure can be set, and on the side of the target value setting value, the current oxygen Supply time and oxygen supply pressure are displayed in real time.

When the use of the supply switch 910 or the stop switch 912 is stopped for a predetermined time on the display 900, the screen is automatically switched as shown in FIG. 5 (b), and the mask 600 and the sensor unit 700 Alternatively, the heart rate 913, blood pressure 914, oxygen saturation 915, respiratory rate 916, and body temperature 917 measured through the controller 800 are displayed.

Hereinafter, an oxygen supply method using a life support device according to an embodiment of the present invention will be described. 6 is a flowchart showing an oxygen supply method according to an embodiment of the present invention. The oxygen supply method shown in FIG. 6 may be performed by a life support device having a configuration as shown in FIG. 1 .

First, the life support device opens a solenoid valve connected to an oxygen cylinder to supply oxygen to a target user (S600).

Then, the life support device senses the state information of the target user (S610). In one embodiment, the state information of the target user may include inhalation pressure, expiratory pressure, body temperature, oxygen saturation, pulse rate, and the like. At this time, the life support device outputs state information of the target user through a display so that the user can check the state information of the target user. For example, a life support device may output body temperature through a display to monitor body temperature, output oxygen saturation through a display to monitor oxygen saturation, and pulse rate through a display to monitor pulse rate. can output When following this example, as shown in FIG. 5, the life support device will be able to output state information of the target user.

Thereafter, the life support device determines whether or not to supply oxygen according to the state information of the target user (S620). The life support system controls oxygen supply according to the judgment result.

In one embodiment, the life support system may determine whether oxygen is supplied by comparing the inhalation pressure or expiratory pressure of the target user with a predetermined inhalation pressure or expiratory pressure. According to this embodiment, the life support device supplies oxygen by determining that oxygen is supplied when the target user's expiratory pressure is lower than the predetermined expiratory pressure, and the life support device determines that the target user's expiratory pressure is lower than the predetermined expiratory pressure. If it is higher than the above, it is determined that the oxygen supply is stopped, and the oxygen supply is stopped. In addition, according to this embodiment, the life support system determines that oxygen is supplied when the intake pressure of the target user is lower than the predetermined intake pressure, and supplies oxygen, and the life support system supplies oxygen when the intake pressure of the target user is predetermined. If it is higher than the intake pressure, it is determined that oxygen supply is stopped, and oxygen supply may be stopped.

In another embodiment, the life support device may determine whether or not to supply oxygen according to a predetermined target time. According to this embodiment, the life support system may stop supplying oxygen when a preset target time is reached.

In one embodiment, the life support device may differently set the target time according to state information of the target user. For example, the life support system may supply oxygen until oxygen saturation reaches a predetermined value. As another example, the life support system may supply oxygen until the pulse rate reaches a predetermined value. As another example, the life support device may set different target times according to the age of the target user and supply oxygen until the target time. As another example, the life support device may set different target times according to the underlying disease, gender, weight, etc. of the target user and supply oxygen until the target time.

Thereafter, when it is determined that the life support device supplies oxygen (S620), oxygen is continuously supplied. At this time, the life support device stops supplying oxygen when the user selects the stop button (S630). If the user does not select the stop button (S630), the life support system continuously supplies oxygen.

Then, when it is determined that the life support device stops supplying oxygen (S620), the life support device closes the solenoid valve connected to the oxygen cylinder to stop supplying oxygen (S640).

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and represent all the technical ideas of the present invention. Since it is not, it should be understood that there may be various equivalents and modifications that can replace them at the time of this application. Therefore, the embodiments described above should be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and their All changes or modified forms derived from equivalent concepts should be construed as being included in the scope of the present invention.

100: life support device 200: oxygen container
300: power supply unit 400: valve unit
500: differential pressure valve 600: mask
700: sensor unit 800: control unit
900: display

Claims (5)

an oxygen container unit including an oxygen container and a control valve detachably or attachably coupled to an opening at one side of the oxygen container to control the amount of oxygen discharged from the oxygen container;
a valve unit connected to the oxygen tank;
a mask connected to the valve unit;
a sensor unit connected to the valve unit to sense the exhalation pressure or inhalation pressure of the mask wearer;
a controller connected to the sensor unit and the valve unit to control the valve unit; and
Including; differential pressure valve disposed above the valve unit,
The differential pressure valve,
a valve body disposed between the valve unit and the mask;
a first hose having one end connected to the front of the valve body and connected to the inside of the valve body, and the other end extending downward to be connected to a hose between the control valve and the valve unit; and
A second hose having one end connected to the inside of the valve body and the other end connected to a hose leading to the mask; including,
The pressure of oxygen discharged between the control valve and the valve unit and the pressure of oxygen moving between the differential pressure valve and the mask are controlled to be the same or similar to a constant level,
The valve part,
It is formed of a solenoid valve, and when the expiratory pressure and inhalation pressure measured by the sensor unit are higher than the preset expiratory pressure and inhalation pressure or the oxygen supply time is exceeded, the oxygen container unit and the mask are blocked for a predetermined time. It is automatically driven so that oxygen supply is stopped,
The sensor unit,
The exhalation pressure and the inhalation pressure generated in the mask are measured, and when the measured exhalation pressure is less than or equal to the preset pressure, or the measured inhalation pressure is less than or equal to the preset pressure, a drive signal is transmitted to the valve unit to operate the mask. Life support device, characterized in that for supplying oxygen towards.
delete According to claim 1,
The life support system further comprising a case in which the oxygen container unit, the valve unit, the mask, the sensor unit, the control unit and the power supply unit are accommodated and a door is formed.
delete The method of claim 1, wherein the mask,
A mask body connected to the valve unit through a hose, and
A life support device comprising a; valve connected to both sides of the mask body to discharge exhaled gas to the outside and block the inflow of external air.

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