Respiratory gas leakage valve device for ventilator

Abstract

The respiratory gas leakage valve device for a ventilator according to the present invention comprises: a first valve pipe formed in a pipe shape, the first valve pipe having a first inflow / outflow hole and a second inflow / outflow hole formed on one end and the other end thereof, respectively, such that respiratory gases flow in / out, multiple leakage holes being formed through between the one end and the other end such that the respiratory gases leak; and a second valve pipe formed in a pipe shape such that, if the first valve pipe is inserted therein, a part of the inside surface thereof is spaced apart from the multiple leakage holes, thereby forming a distancing space together with the outside surface of the first valve pipe. One side of the distancing space communicates with the multiple leakage holes, and the other side thereof communicates with the outside such that the respiratory gases which have leaked from the multiple leakage holes and flowed therein can leak to the outside.

Description

Respiratory gas leak valve device for artificial respirators

[0001] The present invention relates to a respiratory gas leak valve device for an artificial respirator, and more particularly, to a respiratory gas leak valve device for an artificial respirator, wherein a first valve tube having a plurality of leak holes formed therein through which respiratory gas flows in and out and through which some of the introduced respiratory gas leaks out is inserted into a second valve tube, and a filter member for filtering respiratory gas leaked from the plurality of leak holes and an indicator member whose color changes in response to the filtered respiratory gas are accommodated in a space between the first valve tube and the second valve tube, thereby reducing noise generated when respiratory gas leaks, filtering bacteria contained in respiratory humidification, and indicating the time of replacement of the respiratory gas leak valve device for an artificial respirator.

[0002] A ventilator is a device designed to artificially control breathing by inhaling or exhaling air or gas necessary for breathing into the lungs. It can be used for patients who are unable to breathe spontaneously or whose breathing is inadequate. While ventilators are widely used for critical care, home nursing, and emergency treatment, the number of critically ill patients with breathing difficulties has increased significantly due to respiratory infectious diseases such as COVID-19, which has shaken the world, and the need for priority treatment for these patients has also increased.

[0003] Ventilators are divided into a type that transports positive pressure air to the lungs during inspiration and a type that applies negative pressure so that an artificial airway is not needed, and are configured to be controlled in various ways depending on the patient or product by control factors such as air volume, pressure, flow rate, and time.

[0004] Facilities like hospitals and emergency rooms are equipped with specialized devices to assist patients' breathing. However, in cases of suspected or suspected respiratory infections like COVID-19, even in emergency situations, the risk of contagion may make it difficult for people to perform artificial respiration themselves. Therefore, the distribution of emergency ventilators to homes and offices has increased public awareness and the need to save precious lives.

[0005] The purpose of the present invention is to provide a respiratory gas leakage valve device for a respirator, which reduces noise generated when respiratory gas leaks, filters bacteria included in respiratory humidification, and indicates the time of replacement of the respiratory gas leakage valve device for a respirator, by inserting a first valve tube having a plurality of leakage holes formed therein through which respiratory gas flows in and out and through which some of the introduced respiratory gas leaks out into a second valve tube, and accommodating a filter member for filtering respiratory gas leaked from the plurality of leakage holes in a space between the first valve tube and the second valve tube, and an indicator member whose color changes in response to the filtered respiratory gas.

[0006] The objectives of the present invention are not limited to those mentioned above. Other objectives and advantages of the present invention not mentioned above can be understood through the following description and will be more clearly understood through the embodiments of the present invention. Furthermore, it will be readily apparent that the objectives and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims.

[0007] The leak valve device for an artificial respirator according to the present invention comprises: a first valve tube formed in a tubular shape, wherein a first inlet / outlet hole and a second inlet / outlet hole are formed at each of one end and the other end, through which respiratory gas flows in / out, and a plurality of leak holes are formed penetrating between the one end and the other end, through which the respiratory gas leaks; and a second valve tube formed in a tubular shape, wherein when the first valve tube is inserted inside, a portion of an inner surface thereof is formed to be spaced apart from the plurality of leak holes, thereby forming a spaced-off space together with an outer surface of the first valve tube, wherein one side of the spaced-off space is communicated with the plurality of leak holes, and the other side is communicated with the outside, so that the respiratory gas leaked in from the plurality of leak holes can leak to the outside.

[0008] The leak valve device for the artificial respirator according to the present invention comprises a filter member accommodated in the space and filtering the respiratory gas; and

[0009] It may further include an indicator member that is accommodated in the above-mentioned space and changes color by reacting with a predetermined gas component among the gas components included in the above-mentioned breathing gas.

[0010] The second valve tube may be configured with a first sub-tube whose inner surface is in contact with the outer surface of the first valve tube when the first valve tube is inserted inside; and a second sub-tube whose inner diameter is formed longer than the inner diameter of the first sub-tube so that one end is connected to the other end of the first sub-tube and a portion of the inner surface is spaced apart from the outer surface of the first valve tube when the first valve tube is inserted inside.

[0011] The first valve pipe has a partition wall formed in a gear-like shape surrounding the outer surface between the second inlet / outlet hole formed at the other end and the plurality of leakage holes, and the partition wall may have a plurality of partition protrusions formed on the outer surface in the shape of the teeth of the gear.

[0012] The above-mentioned bulkhead may be arranged to block a portion of the other end of the second sub-tube when the first valve tube is inserted into the second valve tube, thereby forming the separation space together with a portion of the outer surface of the first valve tube and the inner surface of the second sub-tube.

[0013] The above-mentioned bulkhead is arranged so that the outer surface on which the plurality of bulkhead protrusions are not formed is spaced apart from the inner surface of the other end of the second sub-tube, and the plurality of bulkhead protrusions are arranged so as to be in contact with the inner surface of the other end of the second sub-tube, thereby forming a plurality of outflow spaces.

[0014] Each of the plurality of outlet spaces has one side connected to the other side of the spaced space and the other side connected to the outside, so that the respiratory gas introduced through the spaced space can leak to the outside.

[0015] According to the present invention, a first valve tube having a plurality of leak holes formed through which respiratory gas flows in and out and through which some of the introduced respiratory gas leaks is inserted into a second valve tube, and a filter member for filtering respiratory gas leaked from the plurality of leak holes and an indicator member whose color changes in response to the filtered respiratory gas are accommodated in a space between the first valve tube and the second valve tube, thereby reducing noise generated when respiratory gas leaks, filtering bacteria contained in respiratory humidification, and indicating the time of replacement of a respiratory gas leak valve device for an artificial respirator.

[0016] FIG. 1 is a front perspective view of a respiratory gas leak valve device for an artificial respirator according to one embodiment of the present invention.

[0017] FIG. 2 is a rear perspective view of a respiratory gas leak valve device for an artificial respirator according to one embodiment of the present invention.

[0018] Figure 3 is an exploded perspective view of a respiratory gas leak valve device for an artificial respirator according to one embodiment of the present invention.

[0019] FIG. 4 is a drawing showing a state in which a second valve tube is separated from a respiratory gas leakage valve device for an artificial respirator according to one embodiment of the present invention.

[0020] FIG. 5 is a front view of a respiratory gas leak valve device for an artificial respirator according to one embodiment of the present invention.

[0021] FIG. 6 is a rear view of a respiratory gas leak valve device for an artificial respirator according to one embodiment of the present invention.

[0022] Figure 7 is a cross-sectional view of a respiratory gas leak valve device for an artificial respirator according to one embodiment of the present invention.

[0023] FIG. 8 is a drawing showing a state in which an indicator member of a respiratory gas leak valve device for an artificial respirator according to one embodiment of the present invention changes color due to respiratory gas.

[0024] Accordingly, even if most of the respiratory gas passing through the filter member (130) passes through the indicator member (140) through the flow path, and a small amount of respiratory gas passes through the indicator member (140) of the second region without passing through the flow path, the color of the indicator member (140) of the second region formed of a material having a higher reactivity with the predetermined gas components described above can change to a degree that can be recognized by the user.

[0025] Meanwhile, the second valve tube (120) may be formed of a transparent material so that the indicator member (140) located inside can be visible to the user.

[0026] The present invention has been described above, focusing on preferred embodiments. Those skilled in the art will appreciate that variations and modifications can be made to the invention without departing from its essential characteristics. Therefore, the disclosed embodiments should be considered illustrative rather than limiting. The scope of the present invention is set forth in the claims, not the foregoing description, and all differences within the scope equivalent thereto should be construed as being encompassed by the invention.

[0027] As described above, although the present invention has been described by limited embodiments and drawings, the present invention is not limited thereto, and various modifications and variations are possible by a person having ordinary skill in the art to which the present invention pertains within the scope of the technical idea of ​​the present invention and the equivalent scope of the patent claims to be described below.

Claims

1. In a leak valve device for an artificial respirator, A first valve tube formed in a tube shape, with a first inlet / outlet hole and a second inlet / outlet hole formed at each end to allow breathing gas to flow in / out, and a plurality of leak holes formed penetrating between the first end and the other end to allow breathing gas to leak; and A second valve tube formed in a tubular shape, wherein when the first valve tube is inserted inside, a portion of the inner surface is formed to be spaced apart from the plurality of leakage holes, thereby forming a spaced apart space together with the outer surface of the first valve tube; The above space is One side is connected to the plurality of leakage holes, and the other side is connected to the outside, so that the respiratory gas leaked from the plurality of leakage holes leaks to the outside. A respiratory gas leak valve device for an artificial respirator.

2. In paragraph 1, The above leak valve device for artificial respirator A filter member accommodated in the above space and filtering the respiratory gas; and It is characterized by further including an indicator member which is accommodated in the above space and changes color by reacting with a predetermined gas component among the gas components included in the breathing gas; A respiratory gas leak valve device for an artificial respirator.

3. In paragraph 1, The above second valve pipe A first sub-tube whose inner surface is in contact with the outer surface of the first valve tube when the first valve tube is inserted inside; and The second sub-tube is characterized in that it is formed with an inner diameter longer than the inner diameter of the first sub-tube so that one end and the other end of the first sub-tube are connected and, when the first valve tube is inserted inside, a part of the inner surface is separated from the outer surface of the first valve tube. A respiratory gas leak valve device for an artificial respirator.

4. In paragraph 3, The above first valve pipe It has a partition formed in a gear shape surrounding the outer surface between the second inlet / outlet hole formed on the other end and the plurality of leakage holes; The above bulkhead It is characterized in that a plurality of baffle projections protruding in the shape of the gear teeth of the above gear are formed on the outer surface. A respiratory gas leak valve device for an artificial respirator.

5. In paragraph 4, The above bulkhead When the first valve tube is inserted into the second valve tube, it is arranged to block a part of the other end of the second sub-tube, thereby forming the separation space together with a part of the outer surface of the first valve tube and the inner surface of the second sub-tube. A respiratory gas leak valve device for an artificial respirator.

6. In paragraph 5, The above bulkhead The outer surface on which the plurality of bulkhead protrusions are not formed is arranged so as to be spaced apart from the inner surface of the other end of the second sub-tube, and the plurality of bulkhead protrusions are arranged so as to be in contact with the inner surface of the other end of the second sub-tube, thereby forming a plurality of outflow spaces. A respiratory gas leak valve device for an artificial respirator.

7. In paragraph 6, Each of the above multiple outflow spaces One side is connected to the other side of the space, and the other side is connected to the outside, so that the respiratory gas that has passed through the space leaks to the outside. A respiratory gas leak valve device for an artificial respirator.

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