阅读说明：本技术 鼻适配器和呼吸管理装置 (Nasal adapter and respiratory management device ) 是由 青柳敬之 株本宪一郎 鹰取文彦 井上正行 于 2019-11-14 设计创作，主要内容包括：提供了一种鼻适配器和呼吸管理装置,其中,能够通过简单的构造改变口呼气引导部的姿态。鼻适配器包括：口呼气引导部7,其具有与生命体的嘴M相对的对置部12,并且在口呼气引导部7中,形成将从嘴M呼出的呼气B向对置部12引导的嘴侧引导路径7a；以及附接部8,其相对于生命体设置在口呼气引导部7上方,并且保持部件5附接到该附接部8,所述保持部件5保持用于测量由口呼气引导部7a引导的呼气B的传感器S。口呼气引导部7一体地连接到附接部8,并且具有姿态改变部14,该姿态改变部14改变连接到附接部8的连接部13与对置部12之间的距离,从而改变对置部12的姿态。(Provided are a nasal adapter and a breathing management device, wherein the posture of an oral exhalation guide can be changed by a simple configuration. The nasal adapter includes: a mouth-exhalation guide unit 7 that has an opposing unit 12 that faces the mouth M of the living body, and in which the mouth-exhalation guide unit 7 is formed with a mouth-side guide path 7a that guides the exhalation B exhaled from the mouth M to the opposing unit 12; and an attachment portion 8 that is provided above the mouth-expiration guide portion 7 with respect to the living body, and to which attachment portion 8 a holding member 5 is attached, the holding member 5 holding a sensor S for measuring the expiration B guided by the mouth-expiration guide portion 7 a. The mouth-expiration guide 7 is integrally connected to the attachment portion 8, and has a posture-changing portion 14, the posture-changing portion 14 changing a distance between the connecting portion 13 connected to the attachment portion 8 and the opposing portion 12, thereby changing a posture of the opposing portion 12.)

1. A nasal adapter, comprising:

a mouth exhalation guide section that includes an opposing section that opposes a mouth of a living body and in which a mouth-side guide path that guides an exhalation exhaled from the mouth to the opposing section is formed; and

an attachment portion that is placed above the mouth-expiration guide with respect to the living body, and to which a measurement member that holds a sensor for measuring the expiration air guided by the mouth-expiration guide or a tubular measurement member that guides the expiration air to an external device is attached,

wherein the mouth-expiration guide is integrally connected to the attachment portion, and

wherein the mouth-expiration guide includes a posture changing portion that changes a distance between the opposing portion and a connecting portion connected to the attaching portion, thereby changing a posture of the opposing portion.

2. The nasal adapter of claim 1,

wherein the connecting part is disposed in a pair of side parts of the mouth-exhalation guide part, and

wherein the posture changing portion is formed by: cutting a vicinity of the connecting portion so that a distance between the connecting portion and the opposing portion changes around a straight line connecting the pair of side portions to each other.

3. The nasal adapter of claim 1 or 2,

wherein the posture changing portion is configured to have a bellows shape that expands and contracts a gap between the connecting portion and the opposing portion around a straight line connecting the pair of side portions of the mouth-exhalation guide portion to each other.

4. The nasal adapter of any one of claims 1 to 3,

wherein the measurement member or the attachment portion includes a support portion extending in the mouth-side guide path so as to be opposed to an inner surface of the opposed portion,

wherein one of the back surface of the opposing portion and the supporting portion includes a protruding portion that protrudes toward the other of the back surface of the opposing portion and the supporting portion.

Wherein the other of the back surface of the opposing portion and the support portion includes a receiving portion recessed corresponding to the protrusion portion, and

wherein the posture of the opposing portion is configured to be supported by the support portion by engaging the protrusion portion with the receiving portion.

5. A nasal adapter according to claim 4,

wherein the other of the inside surface of the opposing portion and the supporting portion includes a plurality of receiving portions arranged in a vertical direction, and

wherein the posture of the opposing portion is configured to be changed stepwise by engaging the protrusion portion with different ones of the receiving portions.

6. A nasal adapter according to claim 4 or 5,

wherein the protrusion includes a recess in which a part of an upper portion is depressed downward, and

wherein the receiving portion includes a protrusion protruding to engage with the recess.

7. The nasal adapter according to any one of claims 1-6, wherein the measurement component is disposed on a side of the attachment portion opposite the living body and is attached to the attachment portion to cover at least a portion of the attachment portion.

8. The nasal adapter of any one of claims 1-7, wherein the measurement component is configured to have a stiffness that is higher than a stiffness of the oral exhalation guide and the attachment portion.

9. The nasal adapter of claim 8, wherein the measurement component includes an upper fixture and a lower fixture that respectively secure upper and lower portions of the attachment portion to stretch the attachment portion in a vertical direction.

10. A nasal adapter according to claim 8 or 9, wherein the measurement component includes right and left fixing portions that fix right and left portions of the attachment portion, respectively, to stretch the attachment portion in a left-right direction.

11. The nasal adapter according to any one of claims 1 to 10, further comprising a nasal exhalation guide portion that is provided in correspondence with a nostril of the living body, is integrally connected to an upper portion of the attachment portion, and in which a nasal side guide path that guides an exhalation exhaled from the nostril to the measurement means is formed.

12. A respiratory management device, comprising:

a nasal adapter according to any one of claims 1 to 11; and

a nasal cannula having a tubular shape and attached to the nasal adapter to supply a predetermined gas to at least one of a nostril and a mouth.

Technical Field

The subject matter of the present disclosure relates to a nasal adapter and a breathing management device, and more particularly, to a nasal adapter and a breathing management device for measuring exhaled breath exhaled from the mouth of a living being.

Background

Conventionally, a nasal adapter for measuring an expired air from a mouth and a nose of a living body has been practically used. The nasal adapter is attached to the face of a living body, and has, for example: an attachment portion to which a sensor for measuring a concentration of carbon dioxide contained in exhaled breath is attached; and a mouth exhalation guide disposed below the attachment portion so as to be opposed to the mouth. The mouth-expiration guide is formed to guide an expiration expired air from the mouth toward the sensor. The concentration of carbon dioxide contained in the expired air can in turn be measured by the sensor.

However, the mouth-exhalation guide is placed near the mouth, and therefore there is a risk that this portion comes into contact with the mouth and its periphery, and the subject feels uncomfortable.

For example, as a technique of suppressing contact of the mouth-expiration guide with the living body, patent document 1 thus proposes an airway adapter in which, in the case where a plurality of kinds of physiological information are to be acquired, the operation of attaching the adapter to the subject can be performed efficiently, and the trouble felt by the subject can be suppressed. In the airway adapter, the mouth-exhalation guide is swingably connected to the attachment portion by a support shaft, and therefore the posture of the mouth-exhalation guide can be changed to suppress contact of the portion with the living body.

Reference list

Patent document

Patent document 1: JP-A-2013-containing 180182

Disclosure of Invention

Technical problem

However, when the mouth-expiration guide is connected to the attachment portion by the support shaft, the attachment portion and the mouth-expiration guide must be separately manufactured, and thus there is a problem in that the number of parts increases.

The subject matter of the present disclosure has been made to solve the problems of the prior art. An object of the presently disclosed subject matter is to provide a nasal adapter and a breathing management device in which the posture of the mouth-expiration guide can be changed with a simple configuration.

Solution to the problem

The nasal adapter of the disclosed subject matter includes:

a mouth exhalation guide unit that has an opposing unit that faces the mouth of the living body, and in which a mouth-side guide path that guides the exhalation exhaled from the mouth to the opposing unit is formed; and an attachment portion that is provided above the mouth-expiration guide with respect to the living body, and to which a measurement member or a tubular measurement member is attached, the measurement member holding a sensor for measuring the expiration air guided by the mouth-expiration guide, the tubular measurement member guiding the expiration air to an external device, and the mouth-expiration guide being integrally connected to the attachment portion; and the mouth-exhalation guide portion has a posture changing portion that changes a distance between a connecting portion connected to the attaching portion and the opposing portion, thereby changing a posture of the opposing portion.

The breathing management device of the presently disclosed subject matter includes: the above-described nasal adapter; and a nasal cannula having a tubular shape and attached to the nasal adapter to supply a predetermined gas to at least one of the nares and the mouth.

Advantageous effects of the invention

According to the subject matter of the present disclosure, the mouth-exhalation guide is integrally connected to the attachment portion, and the posture changing portion changes the distance between the opposing portion and the connection portion connected to the attachment portion, thereby changing the posture of the opposing portion, and therefore a nasal adapter and a breathing management device in which the posture of the mouth-exhalation guide can be changed with a simple configuration can be provided.

Drawings

Fig. 1 shows the configuration of a breathing management device of embodiment 1 of the presently disclosed subject matter.

Fig. 2A and 2B illustrate the configuration of the nasal adapter.

Fig. 3 is a sectional view taken along line a-a in fig. 2A.

Fig. 4 is a perspective view showing the configuration of the holding member.

Fig. 5 shows the configuration of the rear surface of the opposing portion.

Fig. 6 is a side view illustrating a manner of changing the posture of the opposed portion.

Fig. 7 is a sectional view showing a manner of joining the convex portion formed in the housing portion and the concave portion of the protruding portion.

Fig. 8 is a side view showing the configuration of the oral exhalation guide in embodiment 2.

Fig. 9 is a perspective view showing the configuration of the support portion in embodiment 3.

Fig. 10 is a front view showing the configuration of the nasal adapter of embodiment 4.

Detailed Description

Hereinafter, embodiments of the presently disclosed subject matter will be described with reference to the accompanying drawings.

Example 1

Fig. 1 illustrates the construction of a respiratory management device including a nasal adapter of embodiment 1 of the presently disclosed subject matter. The breathing management device is attached to a face F of a living being and may include a nasal adapter 1, a pair of nasal cannulae 2, and a harness portion 3.

The nasal adapter 1 may comprise: an adapter body 4 placed on the front face F; and a holding member 5 attached to the adapter body 4.

The adaptor body 4 may include: a nasal exhalation guide unit 6 provided corresponding to the nostril N of the living body; a mouth exhalation guide section 7 provided corresponding to the mouth M of the living body; and an attachment portion 8 interposed between the nasal and oral expiratory guide portions 6, 7. Here, the nasal expiratory guide 6, the oral expiratory guide 7 and the attachment portion 8 are integrally formed of a flexible material. Examples of the flexible material are vinyl chloride resin and the like.

The nasal exhalation guide portion 6 guides the exhalation ejected from the nostrils N toward the holding member 5, and is formed to extend from the attachment portion 8 toward both nostrils N in a branching manner.

The attaching portion 8 is provided to extend in the left-right direction X with respect to the living body, and is formed so that the holding member 5 can be attached so as to cover an intermediate portion of the attaching portion. The attachment portions 8 are further formed so that the nasal cannulae 2 can be attached to the left and right side portions, respectively, and the fixing band portions 3 can be attached to the vicinities of the left and right side portions.

The mouth-expiration guiding portion 7 guides the expiration air ejected from the mouth M toward the holding member 5, and is formed to extend in the vertical direction Y in front of the mouth M.

The holding member 5 holds a sensor S that measures the exhalation guided by the nasal exhalation guide 6 and the oral exhalation guide 7, and is formed so that the sensor S can be attached to and detached from the holding member. The holding member 5 is formed to have a rigidity higher than those of the nasal exhalation guide portion 6, the oral exhalation guide portion 7, and the attachment portion 8. Here, the holding member 5 is provided on the opposite side of the attachment portion 8 from the face F of the living body, and is attached to the attachment portion 8 to cover a part of the attachment portion 8, thereby supporting the attachment portion 8. For example, the holding member 5 may be constructed of a thermoplastic resin. The holding member 5 constitutes a measuring member in the subject matter of the present disclosure.

As the sensor S, for example, a sensor that measures the concentration of carbon dioxide contained in the exhaled breath may be used.

The pair of nasal cannulas 2 have a tubular shape. In order to supply a predetermined gas to the nostrils N, one end portions of a pair of nasal cannulae 2 are respectively attached to the left and right end portions of the attachment portion 8. The nasal cannula 2 is formed to extend to a gas supply device, not shown, that supplies a predetermined gas, and the other end portion of the nasal cannula 2 is connected to the gas supply device. For example, a device for supplying oxygen may be used as the gas supply device. Here, gas supply portions 9A and 9B, which open toward the nostrils N and the mouth M, are formed in the upper portion of the attachment portion 8, respectively. The oxygen gas guided to the attachment portion 8 through the nasal cannula 2 is discharged to the periphery of the nostril N through the gas supply portion 9a, and is also discharged to the periphery of the mouth M through the gas supply portion 9 b.

The fixing band portion 3 is used to fix the nasal adapter 1 to the face F of a living body, and extends to surround the periphery of the face F, and both end portions of the fixing band portion are attached to the attachment portions 8.

Next, the configuration of the nasal adapter 1 will be described in detail.

As shown in fig. 2A and 2B, the nasal expiratory guide 6 is integrally connected to an upper portion of the attachment portion 8, and the oral expiratory guide 7 is integrally connected to a lower portion of the attachment portion 8. The attaching portion 8 is formed to extend rearward of the holding member 5, that is, in the left-right direction X and on the side of the face portion F with respect to the holding member 5. In contrast, the holding member 5 may include a back plate portion 15, the back plate portion 15 being formed to extend in the left-right direction X and in front of the attachment portion 8, while the back plate portion 15 forms a gap with the attachment portion 8. Thus, supply portions 9A and 9B, which are open toward the nostrils N and the mouth M, respectively, are formed between the attachment portion 8 and the back plate portion 15.

The attachment hole 10a is provided in the right portion of the attachment portion 8, and the attachment hole 10b is provided in the left portion of the attachment portion 8. In the back plate portion 15 of the holding member 5, the right fixing portion 11a is provided to be insertable into the attachment hole 10a, and the left fixing portion 11b is provided to be insertable into the attachment hole 10 b. When the right fixing portion 11a is inserted into the attachment hole 10a, the right portion of the attachment portion 8 is fixed to the holding member 5 to be stretched in the right direction, and when the left fixing portion 11b is inserted into the attachment hole 10b, the left portion of the attachment portion 8 is fixed to the holding member 5 to be stretched in the left direction.

The attachment hole 10c is provided in an upper portion of the attachment portion 8, and the attachment hole 10d is provided in a lower portion of the attachment portion 8. In the holding member 5, an upper fixing portion 11c is provided corresponding to the attachment hole 10c, and a lower fixing portion 11d is provided corresponding to the attachment hole 10d, respectively. When the upper fixing portion 11c is inserted into the attachment hole 10c, the upper portion of the attachment portion 8 is fixed to the holding member 5 to be stretched in the upward direction, and when the lower fixing portion 11d is inserted into the attachment hole 10d, the lower portion of the attachment portion 8 is fixed to the holding member 5 to be stretched in the downward direction.

The mouth-expiration guide 7 may include an opposing portion 12, a connecting portion 13, and a posture changing portion 14.

The opposing portion 12 is formed in a cup shape extending directly below the holding member 5 and having an arcuate shape toward the front side, and is provided so as to oppose the mouth M of the living body.

The connecting portions 13 are respectively provided in a pair of side portions of the mouth-expiration guide portion 7, and are integrally connected to the attaching portions 8. That is, the mouth-expiration guide 7 is connected to the attachment portion 8 only by a pair of side portions, and a portion between the side portions is not connected to the attachment portion 8 but is separated from the attachment portion 8.

The posture changing portion 14 is formed by cutting out the adjacent region of the connecting portion 13 such that the distance between the connecting portion 13 and the opposing portion 12 changes circumferentially around a straight line connecting a pair of side portions of the mouth-expiration guide portion 7 to each other. Specifically, the posture changing portion 14 is formed by cutting the gap between the connecting portion 13 and the opposing portion 12 in an L shape or in the vertical direction Y and the front-rear direction Z. In other words, each posture changing portion 14 has a slit shape that opens and closes a gap between the corresponding connecting portion 13 and the opposing portion 12. Therefore, the posture changing portion 14 changes the posture of the opposing portion 12 to change the distance of the opposing portion 12 with respect to the connecting portion 13 while using a straight line connecting the pair of side portions of the mouth-expiration guide portion 7 to each other as a virtual swing axis.

As shown in fig. 3, a nose-side guide path 6a that guides the exhaled breath B exhaled from the nostril N toward the holding member 5 is formed in the nasal exhalation guide portion 6. Further, a mouth-side guide path 7a that guides the breath B exhaled from the mouth M to the facing portion 12 toward the holding member 5 is formed in the mouth-exhalation guide portion 7. Further, a communicating path 5a that communicates the nose-side guide path 6a with the mouth-side guide path 7a is formed in the holding member 5. According to this configuration, the expired air B expired from the nostril N is guided to the communicating path 5a through the nose side guide path 6a, and the expired air B expired from the mouth M is guided to the communicating path 5a through the mouth side guide path 7 a.

As shown in fig. 4, the holding member 5 may include: a pillar portion 16 that protrudes forward in a columnar manner from an intermediate portion of the back plate portion 15; a pair of projecting portions 17a and 17b projecting forward from the upper and lower portions of the back plate portion 15, respectively, to clamp the column portion 16; a support portion 18 formed to protrude downward from the protruding portion 17 b; and a protrusion 19 protruding forward from a lower portion of the support portion 18.

Sensors S, not shown in the drawing, are attached to both side portions of the pillar portion 16 to sandwich the pillar portion. Windows 16a for measuring the exhalation B flowing through the communication path 5a formed in the column portion 16 are formed in both side portions, respectively. For example, the sensor S outputs an infrared beam or the like to the window 16a, and measures the concentration of carbon dioxide contained in the exhaled breath B based on a change in the amount of the infrared beam passing through the window 16 a.

The pair of projections 17a and 17b support the sensor S, not shown in the figure, in the vertical direction Y, and are provided to sandwich the sensor S in the vertical direction Y.

The support portion 18 supports the posture of the opposing portion 12, extends into the mouth-side guide path 7a of the mouth-expiration guide portion 7, and is disposed so as to oppose the inner surface of the opposing portion 12. The support portion 18 is formed to be bent forward in a U-like shape and along the inner surface of the opposing portion 12. The lower fixing portions 11d are respectively provided at both side portions of the support portion.

The protrusion 19 is provided at a middle portion of the support portion 18 in the left-right direction X, and is formed to protrude from the support portion 18 toward the inner surface of the opposing portion 12. Further, in the middle portion of the protrusion 19, a recess 20 is formed such that the upper portion is recessed downward.

As shown in fig. 5, four receiving portions 21a, 21b, 21c, and 21d recessed corresponding to the protruding portion 19 of the holding member 5 are formed in the inner surface of the opposing portion 12. When the protrusion 19 is engaged with one of the receiving portions 21a to 21d, the posture of the opposing portion 12 is supported with respect to the support portion 18. The receiving portions 21a to 21d are arranged in the vertical direction Y. When the protrusion 19 is engaged with the different receiving portions 21a to 21d, the posture of the opposed portion 12 can be changed stepwise. The convex portion 22 protrudes to engage with the concave portion 20 of the protruding portion 19, the convex portion 22 being formed in the receiving portion 21a located at the highest position among the receiving portions 21a to 21 d.

Next, the operation of the embodiment will be described.

As shown in fig. 1, first, the nasal adapter 1 is fixed to the face F of the living body by the fixing band portion 3. At this time, the nasal adapter 1 is fixed such that the nasal exhalation guide portion 6 is inserted into the nostril N, and the oral exhalation guide portion 7 is opposed to the mouth M.

Here, the holding member 5 is provided to cover a part of the attaching portion 8. Thus, the holding member 5 supports the attachment portion 8, and also supports the nasal exhalation guide portion 6 and the oral exhalation guide portion 7 arranged to sandwich the attachment portion 8 in the vertical direction Y, and thus can hold the postures of the nasal exhalation guide portion 6, the oral exhalation guide portion 7, and the attachment portion 8 formed of a flexible material. Therefore, the nasal exhalation guide portion 6, the oral exhalation guide portion 7, and the attachment portion 8 can be integrally formed of a flexible material, the number of components can be reduced, and the nasal adapter 1 can be formed by a simple configuration. Further, the nasal and oral expiratory guide portions 6, 7 can be prevented from falling off from the attachment portion 8. Further, when the mouth-expiration guide 7 is in contact with a living body, forming the mouth-expiration guide 7 with a flexible material can prevent the skin of the living body from being damaged.

The holding member 5 has a rigidity higher than the rigidity of the nasal exhalation guide 6, the oral exhalation guide 7, and the attachment portion 8, and therefore can strongly support the nasal exhalation guide 6, the oral exhalation guide 7, and the attachment portion 8.

Further, the holding member 5 fixes the upper and lower portions of the attached portion 8 so that the attached portion 8 is stretched in the vertical direction Y, and the holding member 5 fixes the right and left portions of the attached portion 8 so that the attached portion 8 is stretched in the left-right direction X. Therefore, the nasal expiratory guide 6, the oral expiratory guide 7 and the attachment portion 8 can be supported more strongly.

In this way, the posture of the nasal exhalation guide portion 6 inserted into the nostril N is maintained, and the posture of the oral exhalation guide portion 7 disposed opposite to the mouth M is maintained. Then, as shown in fig. 3, the expired air B expired from the nostril N is guided to the nose side guide path 6a of the nasal expiration guide portion 6 and flows into the communicating path 5a of the holding member 5, and the expired air B expired from the mouth M is guided to the mouth side guide path 7a and flows into the communicating path 5a of the holding member 5. Then, the concentration of carbon dioxide contained in the exhalation flowing in the communication path 5a is measured by the sensor S.

At this time, the postures of the nasal exhalation guide 6 and the oral exhalation guide 7 are maintained. Therefore, the expired air B expired from the nostril N and the mouth M can be stably guided to the communicating path 5a, and the concentration of carbon dioxide contained in the expired air B can be accurately measured.

In a case where the subject wishes to bring the opposed section 12 of the mouth-expiration guide 7 close to the mouth M, as shown in fig. 6, the posture of the opposed section 12 is changed so that the opposed section swings centering on a straight line connecting a pair of side sections of the mouth-expiration guide 7 to each other. At this time, the posture changing section 14 changes the posture of the opposing section 12 such that the distance between the connecting section 13 and the opposing section 12 increases around a straight line connecting the pair of side portions of the mouth exhalation guide section 7 to each other, that is, the posture changing section 14 is largely opened. Specifically, in each posture changing portion 14, the posture of the opposing portion 12 is changed by separating the distance changing portion 12a located on the front side of the opposing portion 12 from the connecting portion 13, wherein the connecting portion 13 and the distance changing portion 12a are in a posture across the posture changing portion 14 in the front-rear direction Z.

According to this configuration, in a state where the mouth-expiration guide 7 is integrally connected to the attached portion 8, the posture of the opposing portion 12 can be easily changed so that the opposing portion 12 approaches the mouth M. That is, the posture of the opposing portion 12 can be changed simply by opening the posture-changing portion 14 without strongly bending the connecting portion 13.

As described above, the posture of the opposing portion 12 integrally connected to the attached portion 8 can be easily changed with a simple configuration. Further, the posture changing portion 14 is formed such that the gap between each connecting portion 13 and the opposing portion 12 is cut off in an L-like shape. Therefore, the cut-off gap can be largely opened not only in the front-rear direction Z but also in the vertical direction Y, and the posture of the opposed portion 12 can be largely changed.

When the distance between the mouth M and the opposing portion 12 is changed as described above, it is possible to prevent the occurrence of a situation in which the opposing portion 12 comes into contact with the mouth M and the periphery thereof and the subject feels an uncomfortable feeling. Further, when the posture of the facing portion 12 is changed in accordance with the shape of the mouth M, the exhaled breath B exhaled from the mouth M can be prevented from flowing out to the outside of the facing portion 12. In the case where the upper lip of the subject protrudes more than the lower lip, when, for example, the posture of the facing portion 12 is kept unchanged, the lower portion of the facing portion 12 is separated from the lower lip, and therefore there is a risk that the expired air B expired from the mouth M flows out through the lower side of the facing portion 12. Therefore, the posture of the opposed section 12 is changed so that the lower portion of the opposed section 12 approaches the lower lip, thereby causing the expired air B from the mouth M to flow surely into the inside of the opposed section 12.

Further, as shown in fig. 4, the protrusion 19 is provided on the support portion 18 of the holding member 5. Further, as shown in fig. 5, four receiving portions 21a to 21d are formed on the back surface of the opposing portion 12. When the posture of the facing portion 12 is not changed, the protrusion 19 is engaged with the housing portion 21 d. In contrast, in the case where the opposed portion 12 has an inclined posture as shown in fig. 6, the projection 19 is engaged with another one of the housing portions 21a to 21d, that is, for example, the housing portion 21 b. Therefore, the posture of the opposed section 12 is supported by the support section 18, and thus the posture of the opposed section 12 can be changed stepwise according to various shapes of the mouth M.

When the posture of the opposing portion 12 is inclined more largely, there is a risk that: the projection 19 of the holding member 5 is moved to a position higher than the receiving portion 21a, and the engagement is eliminated. Therefore, as shown in fig. 7, the convex portion 22 is formed in the receiving portion 21a located at the highest position among the receiving portions 21a to 21d, and when the convex portion 22 is engaged with the concave portion 20 of the projection portion 19, the projection portion 19 can be prevented from moving to a position higher than the receiving portion 21 a. Therefore, the posture of the facing portion 12 can be prevented from being largely changed without limitation, and the facing portion 12 can be prevented from coming off the support portion 18.

When the posture of the opposing portion 12 is subsequently restored such that the protruding portion 19 is engaged with the receiving portion 21d, the upper edge portion of the opposing portion 12 abuts against the supporting portion 18 of the holding member 5. Therefore, the posture of the facing portion 12 can be prevented from largely changing in the direction away from the nozzle M.

Therefore, while maintaining the desired shape of the opposing portion 12, the concentration of carbon dioxide contained in the expired air from the nostrils N and the mouth M can be sequentially measured.

According to the present embodiment, the posture changing portion 14 is formed by cutting out the vicinity of the connecting portion 13 so that the distance between the connecting portion 13 and the opposing portion 12 is changed, and therefore, the posture of the opposing portion 12 can be changed by a simple configuration.

Example 2

In the above-described embodiment 1, the posture changing portion 14 is formed by cutting out the adjacent region of the connecting portion 13 such that the distance between the connecting portion 13 and the opposing portion 12 is changed around the straight line connecting the pair of side portions of the mouth-expiration guiding portion 7 to each other. However, the posture changing portion is required to change the distance between the connecting portion 13 and the opposing portion 12 so as to change the posture of the opposing portion 12, and is not limited to the configuration formed by cutting.

For example, as shown in fig. 8, a posture changing portion 23 may be provided instead of the posture changing portion 14 in embodiment 1. The posture changing portion 23 may have a bellows shape such that a gap between the connecting portion 13 and the opposing portion 12 is expanded and contracted around a straight line connecting a pair of side portions of the mouth-expiration guide portion 7 to each other.

According to this configuration, in a case where the subject wishes to bring the opposing portion 12 of the mouth-expiration guide 7 close to the mouth M, the posture of the opposing portion 12 is changed to be inclined toward the mouth M. At this time, the posture of the facing portion 12 is changed such that the distance between the connecting portion 13 and the facing portion 12 becomes large around a straight line connecting the pair of side portions of the mouth-expiration guide portion 7 to each other, that is, the posture changing portion 23 stretches. Specifically, the posture changing portion 23 stretches the distance changing portion 12a located on the front side of the opposing portion 12 to be separated from the connecting portion 13, thereby changing the posture of the opposing portion 12, the connecting portion 13 and the distance changing portion 12a being in a posture across the vertical direction Y. Therefore, in a state where the mouth-expiration guide 7 is integrally connected to the attachment portion 8, the posture of the facing portion 12 can be easily changed so that the facing portion 12 approaches the mouth M.

According to this embodiment, the posture changing portion 23 has a bellows structure that causes the gap between the connecting portion 13 and the opposing portion 12 to expand and contract around the straight line connecting the pair of side portions of the mouth-expiration guide portion 7 to each other, and thus the posture of the opposing portion 12 can be changed with a simple configuration.

In the above embodiment 1, the posture changing section 23 in the present embodiment may be added. That is, in the nasal adapter 1, the posture changing portion 23 in the present embodiment and the posture changing portion 14 in embodiment 1 can be formed together. Further, in the nasal adapter 1, the posture changing portion 23 in the present embodiment and the protrusion 19 and the storage portions 21a to 21d in embodiment 1 may be formed together.

Example 3

However, in embodiments 1 and 2 described above, the support portion 18 is provided on the holding member 5, and the support portion is only required to support the opposing portion 12, and is not limited to being provided on the holding member 5.

For example, as shown in fig. 9, a support portion 31 may be provided instead of the support portion 18 in embodiment 1. In fig. 9, the holding member 5 is not shown.

The support portion 31 has a planar shape integrally connected to the attachment portion 8, extends from the attachment portion 8 into the mouth-side guide path 7a of the mouth-exhalation guide portion 7, and is disposed so as to oppose the inner surface of the opposing portion 12. That is, the support portion 31 is formed to extend from the attachment portion 8 toward the inner surface of the opposing portion 12 while being inclined downward. Further, in the same or similar manner as embodiment 1, a protrusion 19 is provided in the tip of the support portion 31.

According to this configuration, in a case where the subject wishes to bring the opposed section 12 of the mouth-expiration guide 7 close to the mouth M, the posture of the opposed section 12 is changed so as to swing around a straight line connecting a pair of side portions of the mouth-expiration guide 7 to each other. Therefore, the protrusion 19 engages with one of the receiving portions 21a to 21d formed in the inner surface of the opposing portion 12, and the posture of the opposing portion 12 can be changed stepwise.

According to this embodiment, the support portion 31 extends from the attachment portion 8 into the mouth-side guide path 7a of the mouth-exhalation guide portion 7, and is disposed so as to oppose the inner surface of the opposing portion 12. Therefore, the support portion can support the posture of the opposing portion 12.

Example 4

Although in the above embodiments 1 to 3, the holding member 5 holding the sensor S is attached to the attaching portion 8, the member to be attached to the attaching portion 8 is not limited to the holding member 5, and any member for measuring the exhalation guided through the nasal exhalation guide 6 and the oral exhalation guide 7 may be attached.

As shown in fig. 10, for example, an attachment portion 41 may be provided in place of the attachment portion 8 in embodiment 1, a guide portion 42 may be provided in place of the holding member 5, and a pair of measuring members 43 may be provided in place of the pair of nasal cannulae 2.

The attaching portion 41 is provided to extend in the left-right direction X, and is formed so that the guide portion 42 can be attached so as to cover the middle portion of the attaching portion. The attaching portions 41 are further formed so that the measuring parts 43 can be attached to the left and right side portions, respectively. Attachment-side guide paths 41a respectively connected to the measurement members 43 are formed in the attachment portions 41.

The guide portion 42 guides the exhaled breath B guided by the nose-side guide path 6a of the nose exhalation guide portion 6 and the mouth-side guide path 7a of the mouth exhalation guide portion 7 toward the measurement means 43. In the guide portion 42, a communication path 42a that communicates the nose-side guide path 6a and the mouth-side guide path 7a with the attachment-side guide path 41a is formed. In the same or similar manner as the holding member 5 in embodiment 1, the guide portion 42 is attached to the attaching portion 41 so as to cover the intermediate portion of the attaching portion 41.

The measurement part 43 guides the exhaled breath B flowing from the attachment-side guide path 41a toward an unillustrated external device having a tubular shape. One end portion of the measurement member 43 is attached to the left-right direction end portion of the attachment portion 41, and the other end portion is connected to an external device. As the external device, for example, a device for measuring the concentration of carbon dioxide contained in the exhaled breath B may be used.

According to this configuration, the exhaled breath B guided by the nose-side guide path 6a and the mouth-side guide path 7a flows through the inside of the communication path 42a, the attachment-side guide path 41a, and the measurement part 43 to reach the external device, and the concentration of carbon dioxide contained in the exhaled breath B is sequentially measured by the external device.

According to this embodiment, the measurement part 43 that guides the breath B to the external device is attached to the attachment part 41, and thus the concentration of carbon dioxide contained in the breath B can be sequentially measured by the external device.

Although in the above-described embodiments 1 to 4, the nasal adapter 1 is configured by the nasal exhalation guide portion 6, the attachment portion, the oral exhalation guide portion 7, and the measurement member, the configuration of the nasal adapter is not limited thereto as long as the oral exhalation guide portion 7 is integrally connected to the attachment portion. For example, the nasal adapter 1 may be constituted by an attachment portion and the mouth exhalation guide portion 7.

Although in the above-described embodiments 1 to 4, the protruding portion 19 is provided on the supporting portion, and the housing portions 21a to 21d recessed in correspondence with the protruding portion 19 are formed in the inner surface of the opposing portion 12, the manner of supporting the posture of the opposing portion 12 is not limited thereto as long as the posture of the opposing portion can be supported by engaging the protruding portion with one of the housing portions. For example, four protruding portions protruding toward the support portion may be provided on the inner surface of the opposing portion 12, and receiving portions recessed corresponding to the protruding portions may be provided in the support portion.

Although in the above-described embodiments 1 to 4, the four receiving portions 21a to 21d are provided on the inner surface of the opposing portion 12, the number of receiving portions is not limited to four as long as the protruding portion 19 can be engaged with the receiving portions to cause the supporting portion to support the posture of the opposing portion 12. For example, a receiving portion may be provided on the inner surface of the opposing portion 12.

The present application is based on japanese patent application No.2018-231161, filed 12, 10, 2018, the contents of which are incorporated herein by reference.

[ Industrial Applicability ]

According to the present invention, there are provided a nasal adapter and a breathing management device in which the posture of an oral exhalation guide can be changed by a simple configuration.