JP2020081612A - Nasal cavity insertion tool - Google Patents

Abstract

To make it easy to be inserted into nasal cavities, send enough air into respiratory tracts through the nasal cavities when inserted into the nasal cavities, and prevent them from falling out of the nasal cavities as much as possible.SOLUTION: A nasal cavity insertion tool 1 used during respiration through nasal cavities has: a right-side body part 2R and a left-side body part 2L internally having a hollow part 10 being cylindrical and extended from an end 2aa of one end side 2a to an end 2bb of the other end side 2b, and inserted into the nasal cavities; an opening 11 for opening the hollow part 10 to the outside in the end 2aa of the one end side 2a of the right-side body part 2R and the left-side body part 2L; an opening 12 for opening the hollow part 10 to the outside in the end 2bb of the other end side 2b of the right-side body part 2R and the left-side body part 2L; and a pressing part 13 provided at the other end side 2b of the right-side body part 2R and the left-side body part 2L, and being movable between a projected position laterally projected from the right-side body part 2R or the left-side body part 2L viewed from the other end side 2b and an overlapping position overlapped with the hollow part 10.SELECTED DRAWING: Figure 1

Description

The present invention relates to a nasal cavity insertion tool used when breathing through the nasal cavity.

There are many men and women of all ages who are suffering from the symptoms of sleep apnea syndrome (SAS) in which breathing is temporarily stopped during sleep. When the symptoms of sleep apnea syndrome occur, the redox reaction in the blood becomes insufficient and the blood sent to the brain becomes oxygen deficient. This adversely affects not only the cranial nerve tissue but also the hormone metabolism, and may cause a lifestyle-related disease called heart disease, diabetes or cerebrovascular disease.

BACKGROUND ART Conventionally, a nasal cavity dilator that relieves symptoms of sleep apnea syndrome by inserting the nasal cavity into the nasal cavity during sleep and expanding the nasal cavity is known (for example, Patent Document 1). Such a nasal dilator, when inserted into the nasal cavity, remains inside the nasal cavity with the nasal cavity expanded, allowing air to be pumped through the nasal cavity into the respiratory tract.

Japanese Patent Publication No. 2006-501889

However, in the conventional nasal cavity insertion tool, it is necessary to further expand the nasal cavity in order to send more air to the airway through the nasal cavity, but when the entire nasal cavity insertion tool is enlarged to expand the nasal cavity, It becomes difficult to insert the nasal cavity insertion tool into the nasal cavity. On the other hand, when the size of the nasal cavity insertion tool is made small, it is easy to insert the nasal cavity tool into the nasal cavity, but the nasal cavity cannot be expanded sufficiently, so more air can be sent to the airway through the nasal cavity. Moreover, the nasal cavity insertion tool is likely to fall out of the nasal cavity. Therefore, the conventional nasal cavity insertion tool has a problem that it is not possible to achieve both easy insertion into the nasal cavity, sending more air into the nasal cavity and preventing the air from falling out of the nasal cavity.

An object of the present invention is to facilitate insertion into the nasal cavity, and when inserted into the nasal cavity, it is possible to send a sufficient amount of air to the airway through the nasal cavity, and to prevent falling out of the nasal cavity as much as possible. A nasal cavity insertion tool capable of

The nasal cavity insertion tool according to the present invention is a nasal cavity insertion tool used when breathing through a nasal cavity, is a tubular shape, and is hollow extending from one end to the other end. A main body portion having a portion inside and being inserted into the nasal cavity, a first opening portion that opens the hollow portion to the outside at the end portion on the one end side of the main body portion, and the other end side of the main body portion A second opening portion that opens the hollow portion to the outside at an end portion, a protruding position that is provided on the other end side of the main body portion, and that protrudes laterally beyond the main body portion when viewed from the other end side, and A pressing portion movable between the hollow portion and an overlapping position where the hollow portion overlaps.

Insert the main body into the nasal cavity with the pressing portion in the overlapping position, and after inserting the body into the nasal cavity, move the pressing portion from the overlapping position to the protruding position, thereby pressing the inner wall of the nasal cavity with the pressing portion and nasal cavity by the pressing portion. When the inner wall opposite to the inner wall of the nasal cavity pressed by the pressing portion is pressed by the main body by the recoil of pressing the inner wall of the body, the entire nasal cavity is expanded, and the air taken in from the second opening into the hollow portion is removed. Discharge through the first opening and into the respiratory tract.

According to the present invention, it is possible to facilitate insertion into the nasal cavity, and when inserted into the nasal cavity, it is possible to send a sufficient amount of air to the airway through the nasal cavity, and at the same time to prevent falling out of the nasal cavity as much as possible. You can

FIG. 3 is a perspective view of the nasal cavity insertion tool according to the embodiment of the present invention as seen from diagonally above and above. It is a front view of the state where the pressing portion of the nasal cavity insertion tool according to the embodiment of the present invention has moved to the protruding position. It is a top view of the nasal cavity insertion tool which concerns on embodiment of this invention. FIG. 3 is a perspective view of the nasal cavity insertion tool according to the embodiment of the present invention as viewed from diagonally below and below. It is an expanded sectional view of the main part of the nasal cavity insertion tool concerning the embodiment of the present invention. It is an expanded sectional view of the one end side of the main part of the nasal cavity insertion tool concerning the embodiment of the present invention. It is a front view of the state where the pressing portion of the nasal cavity insertion tool according to the embodiment of the present invention has moved to the overlapping position.

Hereinafter, a nasal cavity insertion tool according to an embodiment of the present invention will be described in detail with reference to the drawings. In the figure, the x-axis, y-axis and z-axis form a three-axis orthogonal coordinate system, where the positive direction of the y-axis is the forward direction, the negative direction of the y-axis is the backward direction, the positive direction of the x-axis is the right direction, and the x-axis is the right direction. The negative direction of the axis will be described as leftward, the positive direction of the z axis as upward, and the negative direction of the z axis as downward.

<Structure of nasal cavity insertion tool>
The nasal cavity insertion tool 1 according to the embodiment of the present invention will be described below in detail with reference to FIGS. 1 to 7.

The nasal cavity insertion tool 1 is integrally formed of an elastic synthetic resin and is elastically deformable as a whole. Here, the synthetic resin forming the nasal cavity insertion tool 1 is, for example, styrene-based elastomer, polyester-elastomer, silicon rubber, polyethylene or vinyl chloride.

The nasal cavity insertion tool 1 includes a left body portion 2L that is inserted into the left nasal cavity, a right body portion 2R that is inserted into the right nasal cavity, and a connecting portion 4 that connects the left body portion 2L and the right body portion 2R, have. The left body 2L and the right body 2R are symmetrical with respect to the y axis.

Each of the left body portion 2L and the right body portion 2R has a tubular shape, and has a shape narrowed from the end portion 2bb of the other end side 2b to the end portion 2aa of the one end side 2a. 2a is inserted into the nasal cavity. Specifically, each of the left body portion 2L and the right body portion 2R has a hollow portion 10, an opening 11, an opening 12, a pressing portion 13, a guide piece 14, an internal recess 15, and an external recess. 16 and a communication hole 17.

The hollow portion 10 is provided inside the left body portion 2L and the right body portion 2R, extends from the end portion 2aa of the one end side 2a to the end portion 2bb of the other end side 2b, and from the end portion 2bb to the end portion 2bb. It has a narrowed shape toward 2aa. The hollow portion 10 is surrounded by a wall portion 21 extending in the left-right direction, a wall portion 22 extending in the up-down direction, and a wall portion 23. The wall portion 21 and the wall portion 22 are connected to each other at their ends in the extending direction and extend in directions orthogonal to each other. The wall portion 23 connects the wall portion 21 and the wall portion 22. The wall portion 23 of the left main body portion 2L has a curved shape that is convex toward the right side. The wall portion 23 of the right main body portion 2R has a curved shape that is convex toward the left side. The connecting portion between the wall portion 21 and the wall portion 22, the connecting portion between the wall portion 21 and the wall portion 23, and the connecting portion between the wall portion 22 and the wall portion 23 are respectively curved.

The opening portion 11 opens the hollow portion 10 to the outside at the end portion 2aa on the one end side 2a.

The opening portion 12 opens the hollow portion 10 to the outside at the end portion 2bb on the other end side 2b. The inner diameter of the opening 12 is larger than the inner diameter of the opening 11.

The pressing portions 13 are provided on the other end side 2b of the left body 2L and the other end 2b of the right body 2R, respectively. The pressing portion 13 provided on the left main body portion 2L overlaps the hollow portion 10 with the protruding position shown in FIG. 2 that protrudes to the right, which is the side of the left main body portion 2L, when viewed from the other end side 2b. It is movable between the overlapping position shown in FIG. 7 and presses the subnasal septal muscle at the protruding position when the left body 2L is inserted into the nasal cavity. Further, the pressing portion 13 provided on the right side main body portion 2R has a protruding position shown in FIG. 2 that protrudes leftward, which is a side of the right side main body portion 2R when viewed from the other end side 2b, and the hollow portion 10. It is movable between the overlapping position shown in FIG. 7 and the overlapping position, and when the right body 2R is inserted into the nasal cavity, it pushes the nasal septal muscle at the protruding position.

The pressing portion 13 includes an intermediate portion 131, a protruding portion 132, and a hinge portion 133.

The intermediate portion 131 is provided between the pair of hinge portions 133.

The protruding portion 132 is thicker than the intermediate portion 131 and has a wide width in the front-rear direction, and is a position that presses the nasal septal muscle when the pressing portion 13 moves to the protruding position. It is provided in.

The hinge portion 133 is thinner than the intermediate portion 131 and the protruding portion 132, and the width in the front-rear direction is the same as the width in the front-rear direction of the intermediate portion 131. The hinge portion 133 is provided between the intermediate portion 131 and the protruding portion 132, and between the intermediate portion 131 and the left body portion 2L or the right body portion 2R.

Here, the pressing portion 13 is not limited to the case where a part of the protruding portion 132 protrudes more laterally than the left body portion 2L or the right body portion 2R when viewed from the other end side 2b at the protruding position, and the protruding portion 132 is not limited thereto. The entire body may protrude laterally more than the left body portion 2L or the right body portion 2R. Further, the pressing portion 13 is not limited to the case where the entire protruding portion 132 overlaps the hollow portion 10 when viewed from the other end side 2b at the overlapping position, and the protruding portion 132 may partially overlap the hollow portion 10. Good.

The guide pieces 14 are plate-shaped and are provided in pairs. The guide pieces 14 are provided on the inner wall portion 101 around the hollow portion 10 on the one end side 2a, and extend outward from the opening 11 so as to separate from each other. As shown in FIG. 6, the pair of guide pieces 14 has an inclination of a predetermined angle θ with respect to the central axis P of the hollow portion 10. Here, the predetermined angle θ is preferably 30 degrees.

As shown in FIG. 5, the internal recess 15 is formed by recessing the inner wall 101 around the hollow portion 10 into a mortar shape, and a plurality of internal recesses 15 are provided.

As shown in FIG. 5, the external recess 16 is formed by recessing the outer wall 102 of the left main body 2L and the outer wall 102 of the right main body 2R in a mortar shape, and is provided at a position where they are back-to-back with the internal recess 15. Has been.

As shown in FIG. 6, one end of the communication hole 17 is opened to the inner bottom surface of the inner recess 15 and the other end is opened to the inner bottom surface of the outer recess 16 to communicate the hollow portion 10 to the outside.

The connecting portion 4 connects the pressing portion 13 provided on the left main body portion 2L and the pressing portion 13 provided on the right main body portion 2R. The connecting portion 4 protrudes in a direction facing the contact portion 42 and has a sharp tip surface in the projecting direction, and the connecting portion 4 projects in a direction facing the regulating portion 41 and has a tip surface in the projecting direction. And a flat contact portion 42.

The nasal cavity insertion tool 1 having the above-described configuration changes the overall size of the left main body 2L and the right main body 2R according to the user who uses it. Specifically, the nasal cavity insertion tool 1 for children and women has a smaller overall size of the left side body portion 2L and the right side body portion 2R than the nasal cavity insertion tool 1 for adult males.

<Operation of nasal cavity insertion tool>
The operation of the nasal cavity insertion tool 1 according to the embodiment of the present invention will be described below in detail with reference to FIGS. 1 to 7.

First, in the nasal cavity insertion tool 1 in the state of FIG. 1, with the hinge portion 133 bent and the pressing portion 13 positioned at the overlapping position shown in FIG. 7, the left body portion 2L is moved from the one end side 2a to the left nasal cavity. At the same time as the insertion, the right body 2R is inserted into the right nasal cavity from the one end side 2a. At this time, by positioning the pressing portion 13 at the overlapping position, the nasal cavity insertion tool 1 can be easily inserted into the nasal cavity.

After inserting the left main body 2L and the right main body 2R into the nasal cavity, pulling the connecting portion 4 forward extends the bent hinge portion 133 to move the pressing portion 13 from the overlapping position to the protruding position. .. At this time, the movement of the pressing portion 13 from the overlapping position to the projecting position can be performed in one movement by providing the pressing portion 13 with the hinge portion 133. Further, the connecting portion 4 can be prevented from being operated more than necessary because the restricting portion 41 and the contact portion 42 facing each other are in contact with each other and movement thereof is restricted. In this way, since the pressing portion 13 can be moved from the overlapping position to the protruding position by operating the connecting portion 4, the pressing portion 13 can be easily moved.

By moving the pressing portion 13 from the overlapping position to the protruding position, the pressing portion 13, the left main body portion 2L, and the right main body portion 2R press the inner wall of the nasal cavity, and the pressing portion 13 presses the intranasal septum control muscle. Therefore, the nasal cavity can be expanded further by the nasal cavity insertion tool 1, and the nasal cavity insertion tool 1 can be prevented from falling out of the nasal cavity. In addition, since the volume of the nasal cavity can be expanded downward by pressing the subnasal septal muscle by the pressing portion 13, more outside air can be taken in through the nasal cavity or more exhaled air can be taken through the nasal cavity. Since it can be discharged and the tongue can be raised to the palate, mouth breathing can be prevented and the occurrence of snoring can be suppressed. Further, the inner wall of the nasal cavity opposite to the inner wall of the nasal cavity pressed by the pressing section 13 can be pressed by the left main body section 2L and the right main body section 2R by the recoil of pressing the inner wall of the nasal cavity by the pressing section 13. Can be expanded and the nasal cavity insertion tool 1 can be further prevented from falling out of the nasal cavity.

The left body portion 2L and the right body portion 2R are provided with a wall portion 23 having a curved shape that is convex laterally, and a wall portion 21 and a wall portion 22 that extend in directions orthogonal to each other, Since the shape can match the shape of the nasal cavity, it is possible to widen the entire inner wall of the nasal cavity and prevent the nasal cavity from falling off as much as possible.

When breathing through the nasal cavity with the nasal cavity insertion tool 1 inserted into the nasal cavity by forming the hollow portion into a shape that is narrowed from the end portion 2bb on the other end side 2b toward the end portion 2aa on the one end side 2a In addition, the outside air taken into the hollow portion 10 from the opening portion 12 is discharged from the opening portion 11 to the nasal cavity by increasing the flow rate from the end portion 2bb on the other end side 2b of the hollow portion 10 to the end portion 2aa on the one end side 2a. And can deliver a sufficient amount of air to the respiratory tract via the nasal cavity.

Further, by making the air flowing through the hollow portion 10 into a turbulent flow by making the air in the hollow portion 15 into a vortex, the flow velocity of the air flowing through the hollow portion 10 can be increased.

Further, the air in the inner recess 15 sucks the air in the outer recess 16 and the communication hole 17 into the inner recess 15 so that the outer recess 16 and the communication hole 17 become a negative pressure more than the inner recess 15. The body fluid secreted from the mucous membrane of E. coli easily evaporates in the external recess 16 and the communication hole 17. The body fluid evaporated in the outer recess 16 and the communication hole 17 is sucked by the inner recess 15 from the outer recess 16 and the communication hole 17 to reach the hollow portion 10, and further rides on the air flow in the hollow portion 10 to reach the inner part of the nasal cavity. Or reaches mucosal tissue of pharynx. This makes it possible to keep the inner part of the nasal cavity or the pharyngeal mucosal tissue moist and protect the function of the inner part of the nasal cavity or the pharyngeal mucosal tissue.

Further, the flow velocity of the air discharged from the opening 11 to the nasal cavity can be increased by the guide piece 14, and the air discharged from the opening 11 to the nasal cavity can be guided by the guide piece 14 toward the middle nasal passage. It can be delivered and the velocity of the air flowing to the larynx can be kept from slowing. Here, by forming the pair of guide pieces 14 so as to extend with an inclination of 30 degrees with respect to the central axis P of the hollow portion 10, the air discharged from the opening 11 to the nasal cavity can be prevented. Experiments have confirmed that the flow velocity can be increased.

In this way, by increasing the flow rate of the air taken into the nasal cavity via the nasal cavity insertion tool 1, the flow rate of the air reaching the lungs can be increased and the alveoli can be further expanded. Further, by further expanding the alveoli, it is possible to efficiently wither the alveoli due to its recoil, so that the flow rate of the expiratory air can be increased, and the expiratory and inspiratory air accompanying the stagnation of exhaled air or inhalation in the bronchus Since the turbidity can be reduced and the respiratory volume can be increased, the blood oxygen saturation SpO2 can be increased.

Furthermore, by pressing the inner wall of the nasal cavity outward by the pressing portion 13, it is possible to obtain the stretching effect of the muscle group around the nasal cavity.

When removing the nasal cavity insertion tool 1 from the nasal cavity, the pressing portion 13 is moved from the protruding position to the overlapping position by operating the connecting portion 4 in the direction in which the restricting portion 41 and the contact portion 42 are separated from each other. The pressure applied to the inner wall of the nasal cavity by 13 is released. At this time, the movement of the pressing portion 13 from the protruding position to the overlapping position can be performed in one movement by providing the pressing portion 13 with the hinge portion 133. This allows the nasal cavity insertion tool 1 to be easily removed from the nasal cavity. Moreover, since the pressing portion 13 can be moved from the protruding position to the overlapping position by operating the connecting portion 4, the pressing portion 13 can be easily moved.

Thus, according to the present embodiment, the right side main body portion 2R having the hollow portion 10 extending from the end portion 2aa on the one end side 2a to the end portion 2bb on the other end side 2b inside and inserted into the nasal cavity and It is provided on the other end side 2b of the left side body 2L, and between a protruding position that protrudes more laterally than the right side main body 2R or the left side main body 2L when viewed from the other end side 2b, and an overlapping position where the hollow portion 10 overlaps. By providing the movable pressing portion 13, it is possible to facilitate insertion into the nasal cavity, and when inserted into the nasal cavity, a sufficient amount of air can be sent to the airway via the nasal cavity and fall out from the nasal cavity. This can be prevented as much as possible.

Further, according to the present embodiment, by connecting the left main body 2L and the right main body 2R with the connecting portion 4, it is possible to prevent loss or forgetting to carry either one of the left main body 2L and the right main body 2R. You can

The present invention is not limited to the above-mentioned embodiment in the kind, arrangement, number, etc. of the members, and appropriately replaces the constituent elements thereof with those having the same operational effects, etc. within a range not departing from the gist of the invention. Of course, it can be changed appropriately.

Specifically, in the above embodiment, the left main body 2L and the right main body 2R were connected by the connecting portion 4, but the left main body and the right main body may be separated without using the connecting portion.

Further, in the above-described embodiment, the nasal septum restraining muscle is pushed by the pressing portion 13, but the inner wall of the nasal cavity other than the nasal septal restraining muscle may be pressed by the pressing portion 13.

Further, in the above-described embodiment, the number of the hinge portions 133 in the pressing portion 13 is two, and the number of the hinge portions 133 in the pressing portion 13 is the sandwiching portion between the pressing portion 13 and the connecting portion 4. It is possible to provide one or three or more arbitrary numbers sandwiching the connecting portion between the connection portion 13 and the connecting portion 4.

The present invention is suitable for a nasal cavity insertion tool used when breathing through the nasal cavity.

1 Nasal cavity insertion tool 2a One end side 2aa End part 2b Other end side 2bb End part 2L Left side body part 2R Right side body part 4 Connecting part 10 Hollow part 11 Opening part 12 Opening part 13 Pressing part 14 Guide piece 15 Internal recessed part 16 External recessed part 17 Communication hole 21 Wall part 22 Wall part 23 Wall part 41 Control part 42 Contact part 131 Intermediate part 132 Projection part 133 Hinge part

Claims (9)

A nasal cavity insertion tool used when breathing through the nasal cavity,
A tubular body, having a hollow portion extending from one end side end portion to the other end side end portion inside and a body portion that is inserted into the nasal cavity
A first opening portion that opens the hollow portion to the outside at the end portion on the one end side of the main body portion;
A second opening portion that opens the hollow portion to the outside at the end portion on the other end side of the main body portion;
A pressing portion that is provided on the other end side of the main body portion and is movable between a projecting position that projects laterally from the main body portion when viewed from the other end side and an overlapping position that overlaps the hollow portion,
The nasal cavity insertion tool characterized by having. The main body is
Having the hollow portion surrounded by the first wall portion, the second wall portion and the third wall portion,
The first wall portion and the second wall portion,
Connected to each other and extended in the orthogonal direction,
The third wall is
Having a curved shape that connects the first wall portion and the second wall portion and is convex to the side,
The pressing portion is
When projecting from the other end side, the first wall portion and the second wall portion project laterally at the projecting position.
The nasal cavity insertion tool according to claim 1, wherein: The pressing portion is
When the body portion is inserted into the nasal cavity, presses the subnasal septal muscle at the protruding position,
The nasal cavity insertion tool according to claim 1 or 2, characterized in that. While connecting the pressing portions provided on each of the pair of main body portions to each other, a connecting portion that allows the pressing portions to move between the protruding position and the overlapping position,
The nasal cavity insertion tool according to any one of claims 1 to 3, which is characterized in that. The pressing portion is
A hinge portion that bends when moving from the protruding position to the overlapping position, and extends when moving from the overlapping position to the protruding position,
The nasal cavity insertion tool according to any one of claims 1 to 4, wherein The hollow portion is
It has a shape narrowed from the end on the other end side toward the end on the one end side,
The nasal cavity insertion tool according to any one of claims 1 to 5, wherein The main body is
A plurality of internal recesses formed by recessing the inner wall around the hollow portion;
The nasal cavity insertion tool according to any one of claims 1 to 6, which is characterized in that. The main body is
A plurality of external recesses formed by recessing the outer wall; and a communication hole having one end opened to the internal recess and the other end opened to the external recess to communicate the hollow portion to the outside,
The nasal cavity insertion tool according to claim 7, wherein The main body is
A plurality of plate-shaped guide pieces that are provided on the one end side and that extend outward from the first opening and extend in directions away from each other;
The nasal cavity insertion tool according to any one of claims 1 to 8, which is characterized in that.

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