KR102328600B1 - Patient customized peak flow meter - Google Patents

Abstract

The patient-tailored respiration monitoring device is fixed to the end of the passage through which the user's exhalation passes, and includes an outlet unit through which the exhalation flows out. The outlet unit includes an outlet in which a plurality of holes are formed, and a cover part that selectively opens or closes the outlet to change the number of holes through which the exhaled air flows out. Thus, by changing the number of holes through which exhaled air flows out according to the patient's breathing state, it is possible to monitor the breathing state while having an optimal sensitivity tailored to the patient.

Description

PATIENT CUSTOMIZED PEAK FLOW METER

The present invention relates to a respiration monitoring device, and more particularly, when continuous respiration monitoring is required, it is manufactured in a relatively small and simple configuration to improve patient usability, and to perform optimal monitoring according to various patient conditions It relates to a patient-specific respiration monitoring device that can do this.

Techniques for monitoring a patient's respiratory status are being developed in various ways, especially for patients with chronic respiratory diseases or patients who have undergone respiratory-related surgery such as lung cancer, as continuous monitoring of the respiratory status is required.

However, as a result of the miniaturization and simplified design of the existing respiratory state monitoring device having a complex structure, it is implemented as a device for measuring the maximum single respiration volume, and its usability is expanding not only in hospitals but also at home.

For example, Korean Patent Registration No. 10-1905067 discloses a device capable of monitoring a patient's respiratory disease by accurately analyzing biogas contained in a respiratory body only with such a single respiration.

However, in order to monitor the patient's respiratory status, it is necessary to apply the most sensitive measurement device in the patient's respiratory status in consideration of the patient's respiratory status, that is, expiratory rate or exhalation pressure. In the case of a respiratory state monitoring device, there is no consideration of the patient's respiratory state.

That is, depending on the patient's age, gender, or the patient's disease level, the patient's respiratory status is variable, but considering the patient's breathing status up to now, it is suitable for the patient or optimally suited to the patient's respiratory status. Respiratory monitoring devices that can be sensed are not being developed.

Republic of Korea Patent Registration No. 10-1905067

Accordingly, the technical problem of the present invention was conceived in this regard, and an object of the present invention is to perform optimal monitoring according to the patient's respiratory state, thereby enabling more accurate monitoring of the patient's respiratory state, and a relatively small and simple configuration. It is designed to provide a patient-customized respiration monitoring device with improved patient usability.

Respiratory monitoring device according to an embodiment for realizing the object of the present invention is fixed to the end of the passage through which the user's exhalation, and includes an outlet unit through which the exhalation flows out. The outlet unit includes an outlet in which a plurality of holes are formed, and a cover part that selectively opens or closes the outlet to change the number of holes through which the exhaled air flows out.

In an embodiment, the passage unit may include a measuring unit positioned adjacent to the outlet unit to measure the pressure of air passing through the passage unit.

In one embodiment, as the number of holes through which the exhalation is discharged decreases, the sensitivity of the pressure measured by the measuring unit may increase, and the range of the measurable exhalation rate may decrease.

In an embodiment, the outlet may include an upper outlet in which the plurality of upper opening holes to be opened are formed, and a lower outlet in which a plurality of openings selectively opened or closed by the cover part are formed.

In an embodiment, a groove may be formed on the lower outlet, and a protrusion that slides along the groove may be formed in the cover.

In an embodiment, a boundary portion forming a step may be formed between the upper outlet portion and the lower outlet portion, and sliding of the cover portion may be restricted by the boundary portion.

In one embodiment, the cover part, in consideration of the number of holes through which the exhaled air flows out, may be replaced with a cover part of a different shape to open or close the outlet part.

In one embodiment, the outlet portion may have a circular plate shape, and the cover portion may overlap a portion of the outlet portion in a sectoral shape.

In one embodiment, a control module is provided therein, and it includes a handle part held by the user, a mouthpiece for providing exhalation by the user, and the passage part, and further comprising a connection module connected to the mouthpiece and the handle part. can do.

In one embodiment, the connection module further includes a coupling part connected to and detachably from the handle part, the passage part extends to form a predetermined angle with the coupling part, and the mouthpiece is at the starting end of the passage part. can be inserted.

According to the embodiments of the present invention, by changing the number of holes through which exhaled air flows out, it is possible to variably control the speed of exhalation passing through the passage, thereby changing the sensitivity of the pressure measured inside the passage. .

That is, in the case of a young patient or severely ill patient with relatively weak breathing intensity, by reducing the number of open holes, it is possible to sense the exhalation pressure with a relatively high sensitivity to a relatively small range of exhalation rates. Accurate monitoring of exhalation is possible.

On the other hand, in the case of an adult patient or a mild patient with relatively strong breathing intensity, by increasing the number of open holes, the exhalation pressure can be sensed over a relatively wide range of exhalation rates, so the As the range is widened, it is possible to more accurately monitor the exhalation state of the patient.

That is, as described above, in consideration of the patient's condition, it is possible to perform optimal monitoring of the expiration date.

In particular, through a simple structure in which the cover part opens or closes a part of the outlet, it is possible to selectively open or close the holes formed in the outlet, thereby implementing a patient-specific respiration monitoring device as described above.

In this case, since the cover part slides only on the lower outlet and implements the opening and closing of the holes, the outlet for a certain amount of exhalation is always maintained, and stable respiration monitoring can be implemented.

In particular, by arranging the holes on the lower outlet so that the number of open holes varies according to the sliding state of the cover, the number of open holes can be easily controlled through simple sliding of the cover.

In addition, by replacing the cover portion with a cover portion of a different shape, by easily controlling the number of open holes that are difficult to control with one cover portion, with a cover portion having a different shape, various respiration monitoring devices can be easily implemented according to users.

Figure 1a is a perspective view showing a respiration monitoring device according to an embodiment of the present invention, Figure 1b is a side view of the respiration monitoring device of Figure 1a.
FIG. 2 is an image simulating the flow state of air inside the passage of FIG. 1A .
3 is a schematic diagram illustrating a pressure state according to the flow of air inside the passage of FIG. 1A .
4A is a perspective view showing the outlet unit of FIG. 1A, FIGS. 4B to 4C are perspective views illustrating various open states of the outlet unit of FIG. 4A, and FIG. 4D is a perspective view showing another example of the outlet unit of FIG. 1A am.
FIG. 5 is a perspective view illustrating the inside of the cover part of FIG. 4A .
6A to 6D are schematic views illustrating an open state of the outlet unit of FIGS. 4A to 4D , and FIG. 7 is a graph showing the pressure measurement results according to the open state of the outlet unit of FIGS. 6A to 6D .
8 is a graph showing the sensitivity of the measurement result according to the open state of the outflow unit of FIG. 4A.

Since the present invention may have various changes and may have various forms, embodiments will be described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements. Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms.

In the present application, terms such as "comprises" or "consisting of" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

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

Figure 1a is a perspective view showing a respiration monitoring device according to an embodiment of the present invention, Figure 1b is a side view of the respiration monitoring device of Figure 1a.

1A and 1B , the breathing monitoring device 10 according to the present embodiment includes an outflow unit 100 , a handle 200 , a connection module 300 , and a mouthpiece 400 .

The handle 200 extends in one direction, and although not shown, a control module may be provided therein.

When the user blows the breath into the breathing monitoring device 10, the handle 200 is a gripping part, it is sufficient if it is formed of a size and length that the user can hold.

On the other hand, the control module receives the result of monitoring the respiration of the respiration monitoring device 10 to be described later, that is, measuring the respiration pressure, monitors the required user's respiration state, and transmits and receives the related result to the outside, or the It can be displayed to the outside of the respiration monitoring device (10).

In this case, although not shown in the handle portion 200 of the respiration monitoring device 10, a display portion for displaying the monitoring result may be formed.

The connection module 300 includes a coupling part 310 and a passage part 320, and the coupling part 310 extends in a direction parallel to the extension direction of the handle part 200, and the handle part ( 200) is inserted and coupled so that it can be detachably attached to the upper side.

The passage portion 320 is obliquely extended at a predetermined angle with respect to the coupling portion 310, and forms a passage through which exhaled air passes therein.

In this case, it is sufficient that the passage part 320 extends with respect to the coupling part 310 at an angle convenient for exhaling exhalation while the user holds the handle part 200, and the extended angle is sufficient. can be formed in various ways.

The mouthpiece 400 is inserted into and coupled to the start end of the passage portion 320 , and the user directly puts his/her mouth and blows exhalation into the mouthpiece.

In this case, it is preferable that the mouthpiece 400 is exchanged for a one-time use. Accordingly, a predetermined coupling portion may be formed at the starting end of the passage portion 320 so that the mouthpiece 400 can be detachably attached. have.

The outlet unit 100 is coupled to the end of the passage part 320 , the user's exhaled air passing through the passage part 320 flows out.

The outflow unit 100 is formed with a plurality of holes and has a shape to control the degree of outflow of the user's exhaled air, which will be described later.

FIG. 2 is an image simulating the flow state of air inside the passage of FIG. 1A . 3 is a schematic diagram illustrating a pressure state according to the flow of air inside the passage of FIG. 1A .

Referring to FIG. 2 , the user's exhaled air flows in through the mouthpiece 400 , passes through the passage 320 , and flows out through the outlet unit 100 , and the mouthpiece 400 is a predetermined It has a radius and has a cylindrical shape with both sides open, but the outflow unit 100 is formed with a plurality of holes, and the exhaled air flowing out through the outflow unit 100 can flow out only through the holes. Flow is limited to some extent.

Accordingly, as shown in FIG. 2 , the exhaled air passing through the passage part 320 forms a predetermined flow path, that is, an irregular flow path rather than a flow path parallel to each other.

In addition, when the exhaled air passing through the passage 320 forms a predetermined flow, a predetermined pressure gradient is formed inside the passage 320 , and the resulting pressure is applied to the outlet of the passage 320 . The side, that is, the outflow unit 100 is increased toward the end side is formed.

More specifically, assuming that the outlet unit 100 of FIG. 1A is partially closed as shown in FIG. 1A, the passage portion formed by the exhalation air passing through the passage portion 320 ( 320) If the internal pressure gradient is indicated by a line, it can be schematically illustrated as shown in FIG. 3 .

That is, referring to FIG. 3 , the pressure distribution P1 of the exhaled air flowing out to the upper side of the outlet unit 100 , the pressure distribution P2 of the exhalation flowing out to the center of the outlet unit 100 , and the outlet unit In all of the pressure distributions P3 of the exhaled air flowing out to the lower side of 100, it can be seen that the pressure increases toward the outlet side of the passage portion 320.

In addition, it can be confirmed that the pressure measured at a specific location is relatively high as the exhaled air flows out through the upper side of the outflow unit 100 , and through this, the passage part according to the degree of opening of the upper side of the outflow unit 100 . (320) It can be seen that the internal pressure values change with each other.

That is, as the degree of opening of the upper side of the outlet unit 100 is controlled, the pressure values of the exhaled air flowing inside the passage part 320 are measured differently. From this, by controlling the degree of opening of the outlet unit 100 differently depending on the user who can exhale with a relatively large pressure and the user who does not, the pressure of the exhaled air passing through the passage part 320 is reduced. can be controlled

A detailed description related thereto will be given later.

On the other hand, in this embodiment, the passage part 320 is located adjacent to the outflow unit 100, and the exhaled air (air) passing through the passage part 320 on the lower surface of the passage part 320 is It includes a measuring unit 321 for measuring the pressure.

That is, the measuring unit 321 may be a pressure sensor.

4A is a perspective view showing the outlet unit of FIG. 1A, FIGS. 4B to 4C are perspective views illustrating various open states of the outlet unit of FIG. 4A, and FIG. 4D is a perspective view showing another example of the outlet unit of FIG. 1A am. FIG. 5 is a perspective view illustrating the inside of the cover part of FIG. 4A .

First, referring to FIGS. 4A , 4C and 5 , the outflow unit 100 includes an outlet 101 and a cover 130 .

The outlet 101 has, for example, a circular plate shape, and a plurality of holes are formed at regular intervals from each other.

More specifically, the outlet 101 is divided into an upper outlet 110 and a lower outlet 120 , and a plurality of upper opening holes 111 are formed in the upper outlet 110 , and the A plurality of opening holes 121 , 122 , 123 are also formed in the lower outlet 120 .

In this case, the upper outlet 110 may be formed to have a larger area than the lower outlet 120 . Accordingly, the number of holes formed in the upper outlet 110 increases with the lower outlet 120 . ) may be greater than the number of holes formed in the .

)을 가지는 부채꼴 형상으로 형성될 수 있다. In addition, in order to form the areas of the upper outlet 110 and the lower outlet 120 to be different from each other as described above, the lower outlet 120 has a central angle smaller than 180° (

) may be formed in a sectoral shape having

In this case, the size of the central angle of the lower outlet part 120 may be formed in various ways in consideration of the number of the formed holes, the size of each hole, the total area of the outlet part 101 , and the like.

In addition, in consideration of the coupling with the cover unit 130 to be described later, a boundary portion 115 may be formed at the boundary between the upper outlet portion 110 and the lower outlet portion 120 , and the boundary portion 115 may be It is formed in a step, so that the upper outlet 110 and the lower outlet 120 can be distinguished from each other.

The cover part 130 closes or opens some of the holes formed in the outlet part 101. In this embodiment, the cover part 130 selects only the lower outlet part 120. cover with

Thus, the cover unit 130 selectively closes or opens only the holes 121 , 122 , and 123 formed in the lower outlet 120 , and accordingly, the upper outlet 120 formed in the upper outlet 120 . The upper opening holes 111 are always kept open.

Meanwhile, the cover part 130 is coupled only to the lower outlet part 120 , and substantially, the shape of the cover part 130 may be the same as that of the lower outlet part 120 .

However, as shown in FIG. 4A , the arc end of the lower outlet part 120 may protrude to a certain extent and be larger than the cover part 130 .

)을 가지는 부채꼴 형상을 가지도록 형성되며, 이에 따라, 상기 커버부(130)가 상기 하부 유출부(120)와 모두 중첩되면, 상기 하부 유출부(120)에 형성되는 모든 개구홀들은 폐쇄된다. Nevertheless, as a whole, the cover part 130 also has the same central angle as the lower outlet part 120 (

), and thus, when the cover part 130 overlaps with the lower outlet part 120 , all opening holes formed in the lower outlet part 120 are closed.

On the other hand, as shown in FIG. 5 , a protruding protrusion 133 is formed in the center of the bottom surface of the cover part 130 , that is, the surface facing each other with the lower outlet part 120 .

In addition, as shown in FIG. 4C , a predetermined groove 124 is also formed in the center of the upper surface of the lower outlet part 120 , that is, the surface facing the cover part 130 .

In this case, the groove 124 and the protrusion 133 extend in the same direction, that is, from the bottom surface of the lower outlet 120 toward the upper outlet 110 , and the protrusion 133 . is slid along the extending direction of the groove 124 in a state in which it is inserted into the groove 124 .

Meanwhile, at least one fixing groove 125 is formed in the groove portion 124 , and one fixing protrusion 134 is formed in the protrusion 133 , and the fixing projection 134 is connected to the fixing groove 125 . When positioned on the top, the cover part 130 may be positioned in a fixed state.

That is, in the cover part 130 , the protrusion part 133 slides on the groove part 124 , and moves on the lower outlet part 120 , but the fixing projection 134 is in the fixing groove 125 . When positioned, that is, additional movement is restricted at the first position so that the position can be fixed, and when an additional external force is applied from the outside, it can be further moved from the first position.

In addition, if two or more fixing grooves 125 are formed, after being further moved from the first position, when the fixing protrusion 134 is located on another fixing groove 125 , that is, the second fixing groove 125 . Further movement in the position may be restricted so that the position may be fixed.

As described above, the cover part 130 slides and moves on the lower outlet part 120 , but in the first position (ie, the position shown in FIG. 4B ), the fixing protrusion on the fixing groove 125 . By positioning 134 , the position can be fixed, and after being further slid and moved, in the second position (ie, the position shown in FIG. 4A ), the fixing protrusion 134 on the other fixing groove 125 . ), the position can be fixed.

That is, in the present embodiment, it is exemplified that the cover part 130 may be fixedly positioned at each of the two positions, and the number of positions at which the cover part 130 is fixed may be variously modified. .

In addition, as described above, since the boundary portion 115 is formed as a step, even if the cover portion 130 slides toward the upper outlet portion 110 , the contact portion 131 of the cover portion 130 is the Further sliding is limited while in contact with the boundary portion 115 .

Accordingly, the cover part 130 can be slid with a change in position only on the lower outlet part 120 , and only the opening holes formed on the lower outlet part 120 can be selectively closed or opened. .

Hereinafter, examples of the opening holes that are opened or closed according to the position of the cover part 130 will be described with reference to FIGS. 4A to 4D .

That is, referring to FIG. 4A , as the cover part 130 is positioned to cover the front surface of the lower outlet part 120 , the plurality of upper opening holes 111 formed in the upper outlet part 110 . is opened, and all of the opening holes formed in the lower outlet part 120 are closed.

In addition, although not shown, the cover part 130 is fixed by being inserted into a fixing hole in which the fixing protrusion 134 is formed adjacent to the upper outlet 110 among the fixing holes 125 . position, and thus the cover unit 130 may be stably fixed to the position shown in FIG. 4A .

Furthermore, since the contact portion 131 of the cover portion 130 is positioned in contact with the step formed by the boundary portion 115 , the cover portion 130 may be stably positioned.

Meanwhile, referring to FIG. 4B , when the cover part 130 slides along the groove part 124 and moves in a downward direction, a part of the lower outlet part 120 is opened.

In this case, the cover part 130 may be positioned in a state in which the fixing protrusion 134 is inserted into a fixing hole formed at a lower side of the fixing holes 125 to be fixed, and accordingly, the cover part ( 130) may be stably fixed to the position shown in FIG. 4B.

As described above, when the cover part 130 is positioned at the position shown in FIG. 4B , the plurality of upper opening holes 111 formed in the upper outlet 110 are opened as well as the lower outlet. Among the opening holes formed in the part 120 , all of the first opening holes 121 may be opened.

Accordingly, the number of open opening holes is increased compared to the position of FIG. 4A.

Meanwhile, referring to FIG. 4C , when the cover part 130 slides along the groove part 124 and moves downward and is removed from the lower outlet part 120 , the lower outlet part 120 is all is open

As described above, when the cover part 130 is removed to the outside of the lower outlet part 120 as shown in FIG. 4C , the plurality of upper opening holes 111 formed in the upper outlet part 110 are formed. As well as being opened, all of the opening holes formed in the lower outlet part 120 are also opened. That is, all of the first opening holes 121 as well as the second opening holes 122 are opened.

Accordingly, the number of open opening holes is increased compared to the position of FIG. 4B.

Furthermore, referring to FIG. 4D , the cover part may be replaced with a shape other than a sector shape, and the cover part 140 is formed in a sector where both side corners are cut from the sector shape, so that the lower outlet part 120 ) can be covered.

That is, when the cover part 140 shown in FIG. 4D is slid along the groove part 124 and the contact part 141 is positioned to contact the boundary part 115, the cover part 140 is in a sector shape. Since the side portions 144 are formed on both sides in a shape in which both side edges are cut, the opening holes of the lower outlet portion 120 are not all closed by the cover portion 140 .

That is, among the opening holes of the lower outlet part 120 , the third opening holes 123 are not closed by the cover part 140 but are in an open state.

Thus, as shown in FIG. 4D , as the shape of the cover part 140 is deformed, the plurality of upper opening holes 111 formed in the upper outlet part 110 are opened as well as the lower outlet part. The third opening holes 123 formed in the 120 are also opened.

In this case, the number of holes to be opened is larger than that of the outflow unit 100 shown in FIG. 4A , and less than that of the outflow unit 100 shown in FIG. 4B .

6A to 6D are schematic views illustrating an open state of the outlet unit of FIGS. 4A to 4D , and FIG. 7 is a graph showing the pressure measurement results according to the open state of the outlet unit of FIGS. 6A to 6D . 8 is a graph showing the sensitivity of the measurement result according to the open state of the outflow unit of FIG. 4A.

As described above, the openings 111 opened by the outlet unit 100 of FIG. 4A are the same as the outlet parts of FIG. 6A , and the opening holes opened by the outlet unit 100 of FIG. 4B are shown. The ones 111 and 121 are the same as the outlet of FIG. 6B, and the openings 111, 121 and 122 opened by the outlet unit 100 of FIG. 4C are shown in FIG. 6C. , which shows the opening holes 111 and 123 opened by the outlet unit 100 of FIG. 4D are the same as that of FIG. 6D.

That is, referring to FIGS. 6A to 6D, if the number of opening holes to be opened is listed first, the outlet (A) of FIG. 6A, the outlet (D) of FIG. 6D, the outlet (B) of FIG. 6B and It is the order of the outlet (C) of FIG. 6C.

As described above, in the case where the opening holes are different from each other, the result of measuring the user's exhalation pressure by the measuring unit 321 is shown in FIG. 7 .

That is, referring to FIG. 7 , it can be seen that as the number of opening holes in the outlet increases, the peak flow rate that can be measured through the measurement unit 321 decreases, and the maximum exhalation that can be measured Although the rate decreases, the sensitivity of the measurement at each measurable maximum expiratory rate increases.

That is, as shown in FIG. 8, if the measurable maximum expiratory rate decreases, when the range (within the measurement limit) in which pressure sensor signals can be obtained is constant, the peak flow rate When this is decreased, it can be seen that the sensitivity of the naturally measured pressure signal increases.

Accordingly, as the number of openings in the outlet decreases, the sensitivity of the exhalation measured in the corresponding measurement section increases.

Thus, if the exhalation state is measured while changing the opening holes of the outlet according to the user's exhalation state, high sensitivity is achieved in the relatively low maximum expiratory rate range for young or severely ill patients with relatively low maximum expiratory rates. It is possible to measure the patient's expiratory state with Therefore, it is possible to measure optimized for the user's exhalation state.

That is, for a patient with a relatively low maximum expiratory rate, the outlet (A) or the outlet (D) is applied to measure the expiratory state with high sensitivity, and for a patient with a relatively high maximum expiratory rate, the By applying the outlet (B) or the outlet (C), the expiratory state can be measured for a wide range of maximum expiratory velocity sections.

In addition, since the number of opening holes of the outlets can be variously changed as described above, the number of opening holes can be controlled in a state optimized for the user's exhalation state.

According to the embodiments of the present invention as described above, by changing the number of holes through which exhaled air flows out, it is possible to variably control the speed of exhalation passing through the passage, thereby changing the sensitivity of the pressure measured inside the passage. can do it

That is, in the case of a young patient or severely ill patient with relatively weak breathing intensity, by reducing the number of open holes, it is possible to sense the exhalation pressure with a relatively high sensitivity to a relatively small range of exhalation rates. Accurate monitoring of exhalation is possible.

On the other hand, in the case of an adult patient or a mild patient with relatively strong breathing intensity, by increasing the number of open holes, the exhalation pressure can be sensed over a relatively wide range of exhalation rates, so the As the range is widened, it is possible to more accurately monitor the exhalation state of the patient.

That is, as described above, in consideration of the patient's condition, it is possible to perform optimal monitoring of the expiration date.

In particular, through a simple structure in which the cover part opens or closes a part of the outlet, it is possible to selectively open or close the holes formed in the outlet, thereby implementing a patient-specific respiration monitoring device as described above.

In this case, since the cover part slides only on the lower outlet and implements the opening and closing of the holes, the outlet for a certain amount of exhalation is always maintained, and stable respiration monitoring can be implemented.

In particular, by arranging the holes on the lower outlet so that the number of open holes varies according to the sliding state of the cover, the number of open holes can be easily controlled through simple sliding of the cover.

In addition, by replacing the cover portion with a cover portion of a different shape, by easily controlling the number of open holes that are difficult to control with one cover portion, with a cover portion having a different shape, various respiration monitoring devices can be easily implemented according to users.

Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can.

10: breathing monitoring device
100: outflow unit 101: outflow
110: upper outlet 120: lower outlet
130, 140: cover part 111: upper opening hole
121: first opening hole 122: second opening hole
133: third opening hole 124: groove portion
133: protrusion 200: handle part
300: connection module 310: coupling part
320: passage part 321: sensor part
400: mouthpiece

Claims (10)

It is fixed to the end of the passage through which the user's exhalation passes, and includes an outlet unit through which the exhaled air flows out, the outlet unit comprising:
an outlet including an upper outlet in which a plurality of upper opening holes that are always open are formed, and a lower outlet in which a plurality of selectively open or closed openings are formed; and
By selectively opening or closing the lower outlet, it includes a cover for changing the number of holes through which the exhaled air flows out,
A groove portion through which the cover portion slides is formed on the lower outlet portion, and a step is formed between the upper outlet portion and the lower outlet portion to limit sliding of the cover portion,
Respiratory monitoring device, characterized in that the cover portion is replaced with a cover portion having a different shape, the number of opening holes of the lower outlet to be opened or closed in various ways. According to claim 1, wherein the passage portion,
Respiratory monitoring device, which is located adjacent to the outflow unit, comprising a measuring unit for measuring the pressure of the air passing through the passage. 3. The method of claim 2,
As the number of holes through which the exhalation is discharged decreases, the sensitivity of the pressure measured by the measuring unit increases, and the range of the measurable exhalation rate decreases. delete delete delete delete According to claim 1,
The outlet has a circular plate shape,
Respiratory monitoring device, characterized in that the cover portion overlaps a portion of the outlet in a sector-shaped shape. According to claim 1,
A control module is provided therein, the user grips a handle portion;
a mouthpiece through which the user provides an exhalation; and
Respiratory monitoring device comprising the passage portion, further comprising a connection module connected to the mouthpiece and the handle portion. 10. The method of claim 9,
The connection module further includes a coupling part connected to and detachably from the handle part,
The passage portion extends to form a predetermined angle with the coupling portion,
The mouthpiece is a breathing monitoring device, characterized in that inserted into the starting end of the passage.

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