KR20210020803A - bidirectional flow controllable ventilator - Google Patents

Abstract

A bidirectional flow-controllable artificial respirator according to one embodiment comprises: a chamber for storing air; a tube connected to the chamber and having air flowing therein; a mask connected to the tube and mounted on a face or mouth; and a flow control valve unit provided in the tube and controlling an air flow between the chamber or an air supply source, and the mask. The flow control valve unit comprises: a first valve allowing an air supply path from the air supply source toward the mask; and a second valve allowing an air discharge path from the mask toward the outside of the respirator, wherein the first valve and the second valve are alternately opened and closed during artificial respiration, the first valve is blocked during chest compressions so that a negative pressure in a subject receiving air is maintained for a long period of time, and the first valve and the second valve may be selectively opened and closed so as to allow air to be supplied according to a preset air supplying period.

Description

Bidirectional flow controllable ventilator

A bidirectional flow control ventilator is disclosed.

In patients who are unable to breathe spontaneously, cardiopulmonary resuscitation (CPR) is performed to supply oxygen and maintain blood flow. At this time, in general, together with chest compression, an air mask bag unit (AMBU) is used to induce breathing.

Ambubag is a passive artificial respirator that supplies air by applying positive pressure to the lungs using an air bag while covering the nose and mouth with a mask. Pause chest compressions when supplying air. After enough air is injected into the lungs, chest compression is resumed, and this process is repeated to induce the patient's breathing.

The important thing in CPR including this artificial resuscitation method is that the minimum blood flow to the cerebrovascular vessels should be maintained during repeated chest compression and relaxation, and the coronary artery blood flow should also be maintained when the chest is relaxed, and oxygen is adequate. It must be supplied properly.

As a related technology, Korean Patent Publication No. 10-2018-0041535, filed on October 14, 2018, discloses a manual ventilator capable of adjusting flow rate through feedback and an artificial respiration injection method using the same.

The above-described background technology is possessed or acquired by the inventor in the process of deriving the present invention, and is not necessarily a known technology disclosed to the general public prior to filing the present invention.

An object according to an embodiment is to provide a device capable of selectively blocking air supply to the lungs while pressure is applied to the chest during artificial respiration.

An object according to an embodiment is to provide a device capable of selectively allowing supply of air into the lungs while the chest is relaxed during artificial respiration.

An object according to an embodiment is to provide a device that allows an appropriate amount of air to be naturally supplied by negative pressure in the lungs during artificial respiration.

An object according to an embodiment is to provide a device capable of continuously supplying air during repeated compression and relaxation of the chest.

An object according to an embodiment is to provide a device capable of maintaining a negative pressure in the lungs for a long time after ventilation.

An object according to an embodiment is to provide a device capable of maintaining an appropriate blood flow to the cerebrovascular and coronary arteries.

Problems to be solved in the embodiments are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

A two-way flow control ventilation apparatus according to an embodiment for achieving the above object is a chamber in which air is stored; A tube connected to the chamber and through which air flows; A mask connected to the tube and mounted on the face or mouth; And a flow control valve unit provided in the tube to control an air flow between the chamber or the air supply source and the mask, wherein the flow control valve unit includes a first flow control valve unit that allows an air supply path from the air supply source to the mask. 1 valve; A second valve allowing an air discharge path from the mask to the outside of the device; wherein the first valve and the second valve are opened and closed by crossing each other during artificial respiration, and the first valve is shut off when chest compression Thus, the negative pressure of the air supply target is maintained for a long time, and the first valve and the second valve may be selectively opened and closed to allow air supply according to a set air supply cycle.

According to one side, the bidirectional flow control ventilation apparatus may further include a measurement sensor disposed in the tube to measure a flow rate of air passing through the flow control valve unit or a pressure applied to an airway.

According to one side, the first valve includes: a first transfer unit through which air passes when air is supplied from an air supply source toward the mask; A first opening/closing part disposed inside the first transfer part to allow only one-way flow from an air supply source to the mask; A first control unit disposed within the first transfer unit and spaced apart from the first opening and closing unit, wherein the first control unit blocks air supply when the chest is compressed, and the pressure measured by the measurement sensor when the chest is relaxed is a preset pressure When it reaches, air supply through the first opening/closing unit may be selectively controlled so that air supply is allowed according to a set air supply cycle.

According to one side, the second valve includes: a second conveying unit through which air passes when air is discharged from the mask toward the outside; A second opening/closing part disposed inside the second transfer part to allow only one-way flow from the mask to the outside; And a second control unit spaced apart from the second opening/closing unit in the second transfer unit, wherein the second control unit allows air to be discharged when the chest is compressed, and to block air discharge according to a set air supply cycle. Air discharge through the opening and closing part can be selectively controlled.

According to one side, the first control unit is closed when the chest is pressed to block air supply through the first opening and closing unit, is opened at a set air supply time to allow air supply through the first opening and closing unit, and air supply time Otherwise, it is closed to maintain the negative pressure of the air supply target for a long time, and the second control unit is opened when the chest is pressed to allow air to be discharged through the second opening/closing unit, and is closed at a set air supply time and the second opening/closing unit It blocks air discharge through and opens when the air is not supplied to increase air supply efficiency.

According to one side, the first control unit or the second control unit may include a single rotating plate blocking the air transport path.

According to one side, the first control unit includes a first rotary plate for opening and closing the first transfer unit, the second control unit including a second rotary plate for opening and closing the second transfer unit, the first rotary plate and the second rotary plate Are disposed to be perpendicular to each other, and may rotate together through a rotation shaft connecting the first rotating plate and the second rotating plate.

According to one side, the first control unit or the second control unit may include a locking element that fixes the first opening/closing part or the second opening/closing part in a closed state.

According to one side, the locking element may be rotated to fix the first opening and closing portion or the second opening and closing portion in a closed state.

According to one side, the locking element may be operated in a sliding manner to fix the first opening and closing portion or the second opening and closing portion in a closed state.

According to the two-way flow control ventilation apparatus according to an embodiment, there is an effect of selectively blocking air supply to the lungs while pressure is applied to the chest during artificial respiration.

According to the two-way flow control ventilation apparatus according to an embodiment, there is an effect of selectively allowing air supply into the lungs while the chest is relaxed during artificial respiration.

According to the two-way flow control artificial respiration apparatus according to an embodiment, there is an effect of naturally supplying an appropriate amount of air by negative pressure in the lungs during artificial respiration.

According to the two-way flow control ventilation apparatus according to an embodiment, there is an effect of continuously supplying air while the compression relaxation of the chest is repeatedly performed.

According to the two-way flow control ventilation apparatus according to an embodiment, there is an effect of maintaining the sound pressure in the lungs for a long time after ventilation.

According to the two-way flow control ventilation apparatus according to an embodiment, there is an effect of maintaining an appropriate blood flow to the cerebrovascular and coronary arteries.

The effects of the bidirectional flow control ventilator according to an embodiment are not limited to those mentioned above, and other effects that are not mentioned will be clearly understood by those skilled in the art from the following description.

1 schematically shows an artificial respirator equipped with a flow control valve unit according to an embodiment.
2 is a schematic longitudinal sectional view of a flow control valve unit according to Example 1. FIG.
3 is a schematic longitudinal cross-sectional view of a flow control valve unit according to a second embodiment.
4 is a schematic longitudinal sectional view of a flow control valve unit according to Example 3. FIG.
5 is a schematic cross-sectional view of the flow control valve unit according to the fourth embodiment.
The following drawings attached to the present specification illustrate a preferred embodiment of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in such drawings. It is limited and should not be interpreted.

Hereinafter, embodiments will be described in detail through exemplary drawings. In adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible even if they are indicated on different drawings. In addition, in describing the embodiment, when it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment, the detailed description thereof will be omitted.

In addition, in describing the constituent elements of the embodiment, terms such as first, second, A, B, (a) and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but another component between each component It should be understood that may be “connected”, “coupled” or “connected”.

Components included in one embodiment and components including common functions will be described using the same name in other embodiments. Unless otherwise stated, descriptions in one embodiment may be applied to other embodiments, and detailed descriptions in the overlapping range will be omitted.

A typical artificial respirator may consist of an air bag, a valve, or a mask.

The air bag is automatically filled with air and can supply air to inject into the lungs.

The valve does not pass the air exhaled by the patient, but allows only the air in the air bag to pass.

The mask can be connected to the valve and can be worn around the patient's mouth.

The user of the artificial respirator can adjust the amount of air supplied to the patient according to the degree and speed of pressing the air bag.

In addition, when a high concentration of oxygen is required, an oxygen tank or the like can be coupled by connecting a line to the air bag.

1 schematically shows an artificial respirator 1 in which a flow control valve unit 10 is installed according to an embodiment.

Here, the artificial respiration apparatus 1 according to an embodiment may be used to supply air to a target requiring air supply, and may be connected to an air supply source disposed outside the apparatus.

For example, the air supply target may be a patient's lungs, and the air supply may be an oxygen tank or external air.

Referring to FIG. 1, the ventilation apparatus 1 in which the flow control valve unit 10 is installed according to an embodiment includes a chamber C, a tube T, a mask (not shown), and a flow control valve unit 10. And it may include a chamber valve (V).

The chamber (C) may be a bag in which air is stored.

At this time, the chamber (C) may store the air received from the air supply source, the stored air may be transferred into the lungs when air is supplied.

The tube T may be a tube that is connected to the air supply source to communicate the air supply source and the lungs (L), or the chamber (C) and the patient's lungs (L). Accordingly, air may flow from the outside to the lungs L or from the lungs L to the outside through the tube T.

One side of the mask (not shown) is connected to the tube T, and the other side may be mounted around the patient's face or mouth. Accordingly, air may be transferred from the air source to the mask through the tube T and supplied to the lungs through the patient's airways, and may be discharged from the lungs and discharged to the outside through the mask and tube T.

The flow control valve unit 10 may be disposed in the tube T to control the flow of air supplied into the lungs L of the patient or air discharged from the lungs L of the patient.

For example, the flow control valve unit 10 may have a configuration in which two check valves each allowing only one-way flow are combined. For example, the check valve constituting the flow control valve unit 10 may be provided as a swing type check valve.

The flow control valve unit 10 will be described in more detail below with reference to FIGS. 2 to 4.

The chamber valve V may be installed on one side of the chamber C to control the amount of air in the chamber C. The chamber valve V is mostly maintained in a closed state, but when the air supply continues and both the lungs L and the chamber C are filled with air, they are opened, and some air can be discharged.

In addition, the artificial respiration apparatus 1 according to an embodiment may further include a first sensor (not shown) and a second sensor (not shown).

The first sensor may be disposed within the tube T at a position close to the flow control valve unit 10. This first sensor may measure the flow rate of air passing through the flow control valve unit 10. For example, the first sensor may be provided as a flow sensor.

The second sensor may be disposed in a position closer to the airways than the first sensor in the tube T. This second sensor can measure the pressure applied to the airways. For example, the second sensor may be provided as a pressure sensor.

The air flow of the flow control valve unit 10 of the artificial respirator 1 can be controlled by the electronic system including the above-described first sensor and the second sensor.

For example, the flow control valve unit 10 may be controlled to induce an intake air flow by synchronizing with the relaxation every 10 seconds while the chest compression and relaxation are repeated through the electronic system.

In addition, when the pressure measured by the second sensor reaches a preset pressure, the flow control valve unit 10 may be controlled to induce an intake air flow according to the chest relaxation time. Then, the flow control valve unit 10 may be controlled to return to its original shape again when the pressure in the airway increases than the reference pressure by the intake air flow.

In addition, the flow control valve unit 10 may be applied with a mechanical valve opening and closing device in which the valve is manually opened and closed according to the chest relaxation time after, for example, 10 times of chest compression and relaxation are repeated.

2 is a schematic longitudinal sectional view of the flow control valve unit 10 according to the first embodiment.

Referring to FIG. 2, the flow control valve unit 10 according to the first embodiment may include a first valve 101 and a second valve 102.

The first valve 101 and the second valve 102 may each be provided with the same check valve. In addition, by being coupled to be disposed in opposite directions to each other, the flow control valve unit 10 can be configured.

Here, each of the first valve 101 and the second valve 102 may be a one-way valve that allows flow from one side of the valve to the other and does not allow flow in the opposite direction. For example, the first valve 101 and the second valve 102 may be swing check valves.

The first valve 101 may allow an air supply path from the air supply source O to the lungs L.

Specifically, the first valve 101 may include a first transfer unit 1011, a first opening/closing unit 1012 and a first control unit 1013.

The first transfer part 1011 is the body of the first valve 101, and openings may be formed at both sides. Air may pass through the first conveying part 1011 so that it enters the first conveying part 1011 from the air supply source O through one opening, exits through the other opening, and is supplied into the lungs L.

The first opening and closing part 1012 is disposed inside the first transfer part 1011 and may be composed of a disk, a hinge, and a seat.

The disk may be a portion that substantially blocks or allows the flow path of the fluid.

The hinge is fixed to the conveying unit 1011, so that the disk may be connected to one side of the disk so as to allow the flow in one direction or block the flow in the other direction by using the hinge as a rotation center.

The sheet is fixed to the conveying unit 1011 so that the disk can be supported on the other side of the disk so that the disk blocks flow in the other direction.

The first opening and closing part 1012 configured as described above may be rotated so that air can only be moved from the air supply source O to the lungs L. That is, when the air flows from the air supply source (O) toward the lungs (L), the first opening/closing part 1012 may be opened automatically when it reaches a predetermined flow rate or more. Conversely, when the air flows in the direction discharged from the lungs L, it may be held in a closed state by being caught by a support portion provided in the first transfer unit 1011.

The first control unit 1013 may be spaced apart from the first opening/closing unit 1012 inside the first transfer unit 1011. The first controller 1013 may be opened or closed manually or automatically, and may control the flow of air through the first opening and closing part 1012. That is, by closing the first control unit 1013, even if a flow from the air supply source O to the lungs L occurs, the air supply path can be blocked so that air is not supplied to the lungs L.

The second valve 102 may allow an air exhaust path from the inside (L) to the outside (O) of the device.

Specifically, the second valve 102 may include a second transfer unit 1021, a second opening/closing unit 1022 and a second control unit 1023.

The second transfer unit 1021 is the body of the second valve 102, and openings may be formed on both sides. Air may pass through the second conveying part 1021 so as to enter the inside of the second conveying part 1021 from the inside of the lungs L through one opening, and exit through the other opening.

The second opening/closing part 1022 is disposed inside the second transfer part 1021 and may be formed of a disk, a hinge, and a sheet, similarly to the first opening/closing part 1012.

This second opening and closing part 1022 may be rotated so that air can only be moved from the inside (L) to the outside (O). That is, when the air flows from the inside (L) toward the outside (O), the first opening and closing part 1022 may be opened by itself when it reaches a predetermined flow rate or more. Conversely, when air flows in the direction supplied from the air supply source 0, it may be held in a closed state by being caught by a support portion provided in the second conveying unit 1021.

The second control unit 1023 may be disposed spaced apart from the second opening/closing unit 1022 within the second transfer unit 1021. The second control unit 1023 may be opened or closed manually or automatically, and may control the flow of air through the second opening and closing unit 1022. That is, by closing the second control unit 1023, the air discharge path may be blocked so that air is not discharged to the outside (O) even if a flow from the lung (L) toward the outside (O) occurs.

The flow control valve unit 10 including this configuration operates similarly to a 3-state buffer for the flow of air, and can be controlled externally by an electrical or mechanical method.

In the present specification, as described above, air supply means that air flows in the direction from the air supply source (O) to the lungs (L) through the first valve 101, and air discharge means that the air flows through the second valve 102 It means that it flows in the direction from the inside (L) to the outside (O) through, and a detailed description of the flow direction of air will be omitted below.

The first valve 101 and the second valve 102 may be opened and closed by crossing each other during artificial respiration.

For example, during chest compression, the first valve 101 may block an air supply path, and the second valve 102 may allow a labor discharge path. Accordingly, while the chest compression is performed, the negative pressure in the lungs can be maintained for a long time because only the air in the lungs is allowed to be discharged.

In addition, the first valve 101 and the second valve 102 may be selectively opened and closed to allow air supply according to a set air supply cycle.

Specifically, the artificial respiration apparatus 1 according to an embodiment may be provided to set an air supply cycle. In this case, the cycle may be time or the number of chest compressions. For example, the air supply cycle may be 10 seconds. Therefore, when the chest compression and the artificial respirator 1 are simultaneously performed by cardiopulmonary resuscitation, once air is supplied, the air can be supplied again 10 seconds after the air is supplied. That is, the first valve 101 may be opened at the time of air supply, then maintained in a closed state while the chest is repeatedly compressed and relaxed, and may be reopened at the time of air supply after 10 seconds. Conversely, the second valve 102 may be kept open during repeated compression and relaxation of the chest, and may be closed at the time of air supply.

At this time, air can be naturally supplied at the time when the chest relaxes even without applying positive pressure.

Specifically, the lungs supplied with air may be in a positive pressure state, and as described above, when the chest is compressed, only the air discharge path is allowed, so that the pressure of the lungs may drop to a negative pressure state as the chest compression is repeated. In this state, when the first valve 101 is opened in accordance with the air supply cycle, air can be naturally supplied from the air supply source O connected to the artificial respirator 1 due to a pressure difference.

As described above, the component controlling the air supply path through the first valve 101 is the first controller 1013, and the component controlling the air discharge path through the second valve 102 is the second control unit ( 1023).

Specifically, since the first control unit 1013 is closed when the chest is compressed, it is possible to block the air supply path in advance so that air cannot pass through the first opening/closing unit 1012 due to a pressure difference even if a negative pressure is generated in the lungs L. . On the other hand, the first control unit 1013 is opened at a set air supply time, so that the air supply path can be normally allowed so that the air passes through the first opening/closing unit 1012. In addition, the first control unit 1013 may close the first valve 101 so that air cannot be sucked into the lungs by maintaining the closed state when the chest is relaxed, although not at the time of supplying air.

Contrary to the first control unit 1013, the second control unit 1023 is opened when the chest is compressed, so that the air from the lungs L passes through the second opening/closing unit 1022 and the second valve 102 is continuously discharged. The air exhaust path of the can be allowed. On the other hand, the second control unit 1023 is closed at the set air supply time, so that even if a positive pressure is generated in the lungs L, the air discharge path is prevented from passing through the second opening/closing unit 1022 due to a pressure difference from the outside. You can block it in advance.

Therefore, by using the two-way flow control ventilation apparatus 1 including the flow control valve unit 10 according to an embodiment, while the chest compression and relaxation are repeated, the lung (L) can maintain a negative pressure state for a long time. And, it is possible to increase the efficiency of air supply to the lungs. In addition, without artificially applying positive pressure to supply air, air can be supplied naturally according to the patient's chest relaxation.

Referring back to FIG. 2, the first control unit 1013 or the second control unit 1023 of the flow control valve unit 10 according to the first embodiment may each include a single rotating plate.

Specifically, each rotating plate may be formed as one circular plate. Each shaft may be provided at the center of the first control unit 1013 or the second control unit 1023 so as to match the diameter of the first control unit 1013 or the second control unit 1023, and the axis of the rotary plate It can be combined to penetrate horizontally. The rotating plate can rotate around this axis. The rotating plate may be rotated to be horizontal with the first control unit 1013 or the second control unit 1023 to close the first control unit 1013 or the second control unit 1023, and the first control unit 1013 or the second control unit 1023 The first control unit 1013 or the second control unit 1023 may be opened by rotating to be perpendicular to 1023. Accordingly, the air supply path may be blocked or allowed.

As another example, the rotating plate is not a single rotating plate provided in each of the first control unit 1013 and the second control unit 1023, but is connected to one shaft provided to be shared by the first control unit 1013 and the second control unit 1023 As a result, it may be an orthogonal rotating plate that opens and closes the first control unit 1013 and the second control unit 1023 at an intersection.

Specifically, the orthogonal rotating plate may include a first rotating plate and a second rotating plate.

Both the first rotating plate and the second rotating plate may be formed as a circular plate. In the center of the first control unit 1013 and the second control unit 1023, a single axis may be provided in a straight line to match the diameters of both the first control unit 1013 and the second control unit 1023. The first rotating plate and the second rotating plate are coupled such that this shaft horizontally penetrates the first rotating plate and the second rotating plate, so that the first rotating plate and the second rotating plate may be arranged side by side on the shaft. In this case, the first rotating plate and the second rotating plate may be disposed so that the respective planes are perpendicular to each other.

The first rotating plate and the second rotating plate fixed in this way may rotate together through one rotating shaft.

When the first rotating plate is rotated to be horizontal with the first control unit 1013, the first control unit 1013 may be closed. At this time, since the second rotating plate is perpendicular to the second control unit 1023, the second control unit 1023 can be opened. Conversely, when the first rotating plate rotates to be perpendicular to the first control unit 1013, the first control unit 1013 may be opened. At this time, since the second rotating plate is horizontal with the second control unit 1023, the second control unit 1023 may be closed.

As described above, by rotating the first and second rotating plates, the first transfer unit 1011 or the second transfer unit 1021 may be selectively opened and closed.

Hereinafter, the flow control valve units 11 and 12 including a control unit having a structure different from that of the first control unit 1013 or the second control unit 1023 of Fig. 2 will be described with reference to Figs. 3 and 4. do.

3 is a schematic longitudinal sectional view of the flow control valve unit 11 according to the second embodiment.

Referring to FIG. 3, the flow control valve unit 11 according to the second embodiment may include a first valve 111 and a second valve 112.

Each of the first valve 111 and the second valve 102 may be provided with the same check valve. In addition, the flow control valve unit 11 may be configured by being combined to be disposed in opposite directions to each other.

Specifically, the first valve 111 may include a first transfer unit 1111, a first opening/closing unit 1112 and a first control unit 1113.

The first transfer part 1111 is a body of the first valve 111 and may be a part through which air passes when air is supplied from the air supply source O into the lungs L.

The first opening/closing part 1112 is disposed inside the first conveying part 1111 and can rotate so that air can only be moved from the air supply source O to the lungs L. Conversely, when the air flows in a direction discharged from the lungs L, it may be held in a closed state by being caught by a portion of the support provided in the first transfer unit 1111.

The first control unit 1113 may be disposed to be spaced apart from the hinge connection portion of the first opening/closing unit 1112 inside the first transfer unit 1111 and adjacent to one side of the first opening/closing unit 1112.

In addition, the first control unit 1113 may include a locking element that rotates to fix the first opening/closing part 1112 in a closed state.

Specifically, the locking element may be provided in a'b' shape, one end connected to the spring hinge and the other end may be configured to freely rotate to contact one side of the first opening and closing part 1112. Rotation of the locking element may be operated by mechanical or electrical methods, or the like, outside the first valve 111. Accordingly, the first control unit 1113 may control the flow of air through the first opening and closing unit 1112. That is, by rotating the locking element in a state not in contact with the first opening and closing portion 1112, the locking element comes into contact with one side of the first opening and closing portion 1112, and is fixed so that the first opening and closing portion 1112 is not opened, The supply path can be blocked.

The second valve 112 may include a second transfer unit 1121, a second opening/closing unit 1122 and a second control unit 1123.

The second transfer part 1121 is the body of the second valve 112, and may be a part through which air passes when air is discharged from the lungs (L).

The second opening/closing part 1122 is disposed inside the second conveying part 1121 and may rotate so that air can only be moved from the inside (L) to the outside (O). Conversely, when air flows in the direction supplied from the air supply source 0, it may be held in a closed state by being caught by a support portion provided in the second transfer unit 1121.

The second control unit 1123 may be spaced apart from the hinge connection portion of the second opening/closing unit 1122 inside the second transfer unit 1121 and adjacent to one side of the second opening/closing unit 1122.

In addition, the second control unit 1123 may include a locking element capable of fixing the second opening/closing unit 1122 in a closed state.

Specifically, the locking element may be provided in a'b' shape, one end connected to the spring hinge and the other end may be configured to freely rotate to contact one side of the second opening and closing portion 1122. Rotation of this locking element can be operated by mechanical or electrical methods or the like outside of the second valve 112. Accordingly, the second control unit 1123 may control the flow of air through the second opening and closing unit 1122. That is, by rotating the locking element in a state not in contact with the second opening and closing portion 1122, the locking element comes into contact with one side of the second opening and closing portion 1122, and is fixed so that the second opening and closing portion 1122 is not opened, The discharge path can be blocked.

4 is a schematic longitudinal sectional view of the flow control valve unit 12 according to the third embodiment.

Referring to FIG. 4, the flow control valve unit 12 according to the third embodiment may include a first valve 121 and a second valve 122.

Each of the first valve 121 and the second valve 122 may be provided with the same check valve. In addition, they may be combined to be disposed in opposite directions to each other.

Specifically, the first valve 121 may include a first transfer unit 1211, a first opening/closing unit 1212, and a first control unit 1213.

The first transfer part 1211 is a body of the first valve 121 and may be a part through which air passes when air is supplied from the air supply source O to the lungs L.

The first opening/closing part 1212 is disposed inside the first conveying part 1211 and can rotate so that air moves only from the air supply source O to the lungs L.

The first control unit 1213 may be disposed spaced apart from the hinge connection portion of the first opening/closing unit 1212 inside the first transfer unit 1211 and adjacent to one side of the first opening/closing unit 1212.

In addition, the first control unit 1213 may include a locking element that operates in a sliding manner to fix the first opening/closing part 1212 in a closed state.

Specifically, the locking element may comprise a slide member and a spring member.

The slide member may be configured such that its lower end is connected to the spring member and moves up and down, and its side surface slides on one surface of the first opening/closing part 1212. Such a slide member may operate in a slidable manner by a mechanical or electrical method outside the first valve 121. Accordingly, the first control unit 1213 may control the flow of air through the first opening/closing unit 1212. That is, the slide member positioned so as not to contact the first opening/closing part 1212 may slide upward while being pushed by the spring member. The slide member abuts on one surface of the first opening/closing part 1212, and is fixed so that the first opening/closing part 1212 is not opened to block the air supply path.

The second valve 122 may include a second transfer unit 1221, a second opening/closing unit 1222, and a second control unit 1223.

The second transfer part 1221 is a body of the second valve 122 and may be a part through which air passes when the air is discharged from the lungs L.

The second opening/closing part 1222 is disposed inside the second conveying part 1221 and may rotate so that air can only be moved from the inside (L) to the outside (O).

The second control unit 1223 may be disposed spaced apart from the hinge connection portion of the second opening/closing unit 1222 inside the second transfer unit 1221 and adjacent to one side of the second opening/closing unit 1222.

In addition, the second control unit 1223 may include a locking element that operates in a sliding manner to fix the second opening and closing portion 1222 in a closed state.

Specifically, the locking element may comprise a slide member and a spring member.

The slide member may be configured such that its lower end is connected to the spring member and moves up and down, and its side surface slides on one surface of the second opening/closing part 1222. Such a slide member may operate in a slidable manner outside of the second valve 122 by a mechanical or electrical method. Accordingly, the second control unit 1223 may control the flow of air through the second opening/closing unit 1222. That is, the slide member positioned so as not to contact the second opening/closing part 1222 may slide upward while being pushed by the spring member. The slide member is in contact with one surface of the second opening/closing part 1222 and is fixed so that the second opening/closing part 1222 is not opened to block the air discharge path.

The ventilation apparatus 1 according to the embodiment is similar in configuration to the flow control valve unit 12 of the third embodiment, but the structure of the first control unit 1213 and the second control unit 1223 is different. The flow control valve unit 13 according to the may be provided.

5 is a schematic cross-sectional view of the flow control valve unit 13 according to the fourth embodiment.

Referring to FIG. 5, the flow control valve unit 13 according to the fourth embodiment may include a first valve 131 and a second valve 122.

Although omitted in FIG. 5, the first valve 131 and the second valve 132 are the transfer parts 1211 and 1221 and the opening/closing part 1212 of the first valve 121 and the second valve 122 of the third embodiment, respectively. 1222) may include the same transfer unit and opening and closing unit.

In addition, the first valve 131 may include a first control unit 1313, and the second valve 132 may include a second control unit 1323.

As illustrated in FIG. 5, the flow control valve unit 13 may further include a rotation shaft 133 provided between the first valve 131 and the second valve 132.

This rotation shaft 133 is one shaft provided to be shared by the first control unit 1313 and the second control unit 1323, and the first control unit 1313 and the second control unit 1323 are together through the rotation shaft 133. Can be connected to move.

Specifically, the first control unit 1313 and the second control unit 1323 are arranged such that one of the two is arranged to fix the opening/closing part of the corresponding valve in a closed state, and the other is the opening/closing part of the corresponding valve being opened. It can be combined at an angle that can be arranged to hold it in a state. Alternatively, it may be provided as an integrated control unit having the shape as described above.

The first control unit 1313 and the second control unit 1323 rotate together with the rotation shaft 133 as the center, and may open and close the air flow paths of the first valve 131 and the second valve 132 at an intersection. .

In addition, the operation of the first control unit 1313 and the second control unit 1323 may be controlled electromagnetically using an electromagnet as shown in FIG. 5A, and mechanically using a gear as shown in FIG. 5B. It can also be controlled.

As described with reference to FIGS. 2 to 5, the artificial respirator 1 according to an embodiment includes the flow control units 10, 11, 12, 13, so that it can operate only in the exhalation direction during chest compressions. have. In addition, air may be naturally introduced into the lungs by the negative pressure formed in the lungs after a certain period of time or the number of chest compressions has passed according to the set air supply cycle. At this time, the flow control units 10, 11, 12, and 13 can operate only in the intake direction.

By repeating the above process, the artificial respiration device 1 according to an embodiment can prevent excessive air from being introduced during inhalation. In addition, it is possible to prevent lung damage and reduction of the chest compression effect caused by intrapulmonary pressure during chest compression.

As described above, in the embodiments of the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but this is only provided to help a more general understanding of the present invention, and the present invention is limited to the above embodiments. It is not, and a person of ordinary skill in the field to which the present invention belongs can make various modifications and variations from this description. For example, the described techniques are performed in a different order from the described method, and/or components such as the described structure, device, etc. are combined or combined in a form different from the described method, or in other components or equivalents. Even if substituted or substituted by, appropriate results can be achieved. Therefore, the spirit of the present invention is limited to the described embodiments and should not be defined, and all things that are equivalent or equivalent to the claims as well as the claims to be described later belong to the scope of the invention. .

1: Two-way flow control ventilator
10: flow control valve unit
101: first valve
1011: first transfer unit
1012: first opening and closing part
1013: first control unit
102: second valve
1021: second transfer unit
1022: second opening and closing part
1022: second control unit

Claims (10)

A chamber in which air is stored;
A tube connected to the chamber and through which air flows;
A mask connected to the tube and mounted on the face or mouth; And
A flow control valve unit provided in the tube to control air flow between the chamber or the air source and the mask;
Including,
The flow control valve unit,
A first valve allowing an air supply path from an air source to the mask;
A second valve allowing an air exhaust path from the mask to the outside of the device;
Including,
The first valve and the second valve are opened and closed to cross each other during artificial respiration,
The first valve is blocked when the chest is compressed so that the negative pressure of the air supply target is maintained for a long time
The first valve and the second valve are selectively opened and closed to allow air supply according to a set air supply cycle.
The method of claim 1,
It is disposed in the tube and further comprises a measurement sensor for measuring a flow rate of air passing through the flow control valve unit or a pressure applied to the airways.
The method of claim 2,
The first valve,
A first conveying unit through which air passes when air is supplied from an air supply source toward the mask;
A first opening/closing part disposed inside the first transfer part to allow only one-way flow from an air supply source to the mask;
A first control unit disposed within the first transfer unit and spaced apart from the first opening and closing unit;
Including,
The first control unit supplies air through the first opening/closing unit so that air supply is blocked when the chest is compressed, and when the pressure measured by the measurement sensor reaches a preset pressure when the chest is relaxed, air supply is allowed according to a set air supply cycle. Two-way flow control ventilator that selectively controls the device.
The method of claim 3,
The second valve,
A second transfer unit through which air passes when air is discharged from the mask toward the outside;
A second opening/closing part disposed inside the second transfer part to allow only one-way flow from the mask to the outside;
A second control unit spaced apart from the second opening/closing unit in the second transfer unit;
Including,
The second control unit selectively controls the discharge of air through the second opening/closing unit so that air discharge is allowed when the chest is compressed, and air discharge is blocked according to a set air supply cycle.
The method of claim 4,
The first control unit,
It is closed when the chest is compressed to block air supply through the first opening and closing part,
It is opened at a set air supply point to allow air supply through the first opening and closing part, and is closed when not at the air supply point to maintain the negative pressure of the air supply target for a long time,
The second control unit,
It is opened when the chest is compressed to allow air discharge through the second opening and closing part,
A two-way flow control artificial respirator that is closed at a set air supply point to block air discharge through the second opening and closing part, and is opened when the air is not supplied to increase air supply efficiency.
The method of claim 4,
The first control unit or the second control unit,
A two-way flow control ventilator comprising a single rotating plate that blocks the air transport path.
The method of claim 4,
The first control unit includes a first rotating plate for opening and closing the first transfer unit,
The second control unit includes a second rotating plate for opening and closing the second transfer unit,
The first rotating plate and the second rotating plate are disposed to be orthogonal to each other, and rotate together through a rotating shaft connecting the first rotating plate and the second rotating plate.
The method of claim 4,
The first control unit or the second control unit,
And a locking element that fixes the first opening and closing portion or the second opening and closing portion in a closed state.
The method of claim 8,
The locking element is rotationally operated to fix the first opening or closing portion or the second opening and closing portion in a closed state.
The method of claim 8,
The locking element slides to secure the first opening or closing portion or the second opening and closing portion in a closed state.

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