JP6959843B2 - A nasal discharge storage structure and a nasal discharge aspirator using this. - Google Patents

Description

The present invention relates to a nasal discharge storage structure that sucks and stores nasal discharge, and a nasal discharge aspirator that utilizes the nasal discharge storage structure.

Conventionally, a nasal discharge aspirator has been used to eliminate nasal congestion in infants and sick people.
Patent Document 1 is an example of this nasal mucus aspirator, and as shown in FIG. 1, it is connected to a nasal mucus aspirator main body 1 having a motor or the like for generating a negative pressure and the nasal mucus aspirator main body 1. A nasal discharge case 7 for collecting the nasal discharge that has been sucked, a tube 10 that serves as a passage for guiding the nasal discharge to the nasal discharge case 7, and a nasal discharge suction that is connected to the tip of the tube 10 and inserted into the nostril. It has a part 9 and. The space inside the nasal mucus suction device main body 1 and the nasal mucus suction unit 9 communicates with each other via the nasal mucus storage case 7 and the tube 10. Therefore, if a negative pressure is generated in the nasal mucus suction device main body 1. , The nasal discharge can be collected in the nasal discharge case 7 from the nasal discharge suction unit 9 inserted into the nostril via the tube 10.

The nasal discharge case 7 is a nasal discharge storage structure that can store the sucked nasal discharge without invading the main body 1 of the nasal discharge suction device 1. That is, the breathable paper 8 is arranged in the passage connecting the nasal discharge case 7 and the nasal discharge suction device main body 1. Further, the nasal discharge case 7 has a labyrinth 13 like a wall, and the nasal discharge that has entered the nasal discharge case 7 from the suction port collides with the labyrinth 13 and is collected on the bottom surface as much as possible. The breathable paper 8 is prevented from getting nasal discharge.

Further, as a nasal discharge storage structure that prevents invasion of the component on the side that generates negative pressure in this way, there is also one shown in Patent Document 2. In Patent Document 2, as shown in FIG. 1, a suction head portion 14 inserted into the nose hole, a storage container 11 connected to the suction head portion 14, and a tube 17 connected to the storage container 11 are provided. The suction port 18 at the tip of the tube 17 is sucked by the mouth to create a negative pressure inside the tube 17, whereby the nasal juice is sucked from the suction head portion 14 and stored in the storage container 11. In this respect, since the storage container 11 has a considerable depth and the tube 17 is connected to the upper part of the storage container 11, the sucked nasal discharge is directly dropped and stored on the inner bottom surface of the deep storage container 11. , The inflow into the tube 17 is prevented.

Jikkenhei 02-6052 Gazette Japanese Patent No. 4031098

By the way, in the nasal discharge storage structure of Patent Document 1, even if the nasal discharge hits the wall called the labyrinth 13 in the nasal discharge case 7 and the momentum of the inflow of the nasal discharge weakens, the nasal discharge is the labyrinth 13 due to the suction force of the motor. It wraps around the paper and flows toward the breathable paper 8. Therefore, the dirty breathable paper 8 must be replaced every time it is used.
Further, in the nasal discharge storage structure of Patent Document 2, the storage container 11 has a considerable depth, but if the storage container 11 is turned upside down or horizontal, the nasal discharge enters the tube 17 and sucks the tube 17. There is a risk of nasal discharge containing bacteria entering the person's mouth. In particular, when an infant or the like into which the suction head portion 14 is inserted moves violently or the like, such a fear increases.
The present invention solves such a problem, a nasal discharge storage structure that prevents the nasal discharge that has flowed into the nasal discharge storage structure from flowing to the side that generates negative pressure, and a nasal discharge using the nasal discharge storage structure. The purpose is to provide an aspirator.

According to the present invention, the above-mentioned problem is a nasal juice storage structure in which an inflow port into which nasal juice flows into a casing and a suction port for pulling the nasal juice are formed, and the nasal juice flowing in from the inflow port is stored in the casing. A labyrinth structure for forming a labyrinth structure is provided in the casing so that the inflowing nasal juice does not enter the suction port, and the labyrinth structure includes the inflow port and the labyrinth structure. It is a wall that is arranged between the suction port and collides with the inflowing nasal juice, and the end portion in the width direction orthogonal to the length direction connecting the inflow port and the suction port is the width direction of the casing. A wall to be collided so as not to come into contact with the inner surface of the wall, and an inner surface in the width direction by extending from the end of the wall to the suction port side along the inner surface in the width direction. It has a narrow road wall for forming a narrow road portion between the two, and a storage space for collecting the nasal juice is formed between the collision wall and the inflow port, and the collision wall and the collision wall and the above. The narrow road wall is solved by a nasal fluid storage structure that is in contact with or fixed to the inner surface of the casing in the depth direction orthogonal to both the length direction and the width direction of the casing.

According to the labyrinth structure of the nasal discharge storage structure of the present invention, since the nasal discharge flowing into the casing has a collision wall, the momentum of the nasal discharge flowing from the inflow port is stopped by the collision wall, and the nasal discharge is stopped by the collision wall. The nasal discharge can be easily stored in the nasal discharge storage space formed between the collision wall and the inflow port.
The collision wall is formed so that the end in the width direction orthogonal to the length direction connecting the inflow port and the suction port does not contact the inner surface in the width direction of the casing, and the labyrinth structure is covered. It has a narrow road wall that extends from the end of the collision wall to the suction port side along the inner surface in the width direction of the casing to form a narrow road portion with the inner surface. Therefore, air for sucking nasal discharge can be drawn through this narrow road portion. At this time, the collision wall and the narrow road wall are in contact with or fixed to the inner surface in the depth direction orthogonal to both the length direction and the width direction of the casing. Therefore, it becomes difficult for the nasal discharge to flow from the region other than the narrow road portion toward the suction port side, and if it flows to the suction port side, it becomes easy to pass through the narrow road portion. However, since the narrow passage is a narrow passage between the inner surface and the narrow passage wall, it is possible to effectively prevent viscous nasal discharge from passing through the narrow passage (the distance between the narrow passages is the nasal discharge). It should be decided according to the negative pressure to pull).
As described above, the nasal discharge can be stored in the storage space while preventing the nasal discharge that has flowed into the nasal discharge storage structure from flowing into the suction port on the side where the negative pressure is generated.

Further, preferably, the suction port is formed at the tip of a protruding portion in the casing that protrudes toward the collision wall side, and is collided with the narrow road wall rather than the extended end portion. It is characterized by being arranged on the wall side. Therefore, even if the nasal discharge passes through the narrow road portion, the nasal discharge that has passed through the nasal discharge does not enter the suction port at least immediately, and even if the suction port is lowered, it protrudes from the end of the narrow road wall. It can be stored in the space between the parts.

Further, preferably, the collision wall is plate-shaped, and the collision wall and the suction port are separated from the storage space between the collision wall and the inflow port. It is characterized by having a reserve storage space for storing nasal discharge. Therefore, even if the inflow port is turned down after the nasal discharge has passed through the narrow path and entered the suction port side, the nasal discharge is stored in the preliminary storage space and sucked from the suction port. Can be effectively prevented.

Further, preferably, the casing is characterized by having a recessed portion on the outer surface in the depth direction corresponding to the thumb of the operator (the thumb of an adult such as parents when sucking the nasal discharge of an infant). Therefore, the thumb and the recess are fitted to facilitate the holding of the nasal discharge storage structure.

The subject is a nasal discharge aspirator having the nasal discharge storage structure, a suction head inserted into the nasal cavity to suck nasal discharge, a tube for drawing air, and an electric pump that generates negative pressure. In the nasal discharge storage structure, the suction head can be attached to and detached from the inflow port, one end of the tube can be attached to and detached from the suction port, and the other end of the tube can be attached to and detached from the electric pump. It is possible, and the problem is solved by a nasal discharge aspirator that creates a negative pressure in the suction head connected to the inlet of the nasal discharge storage structure in a state where the tube is connected to the suction port of the nasal discharge storage structure. Will be done.
Then, the nasal discharge structure is placed between the suction head and the tube, and as described above, the sucked nasal discharge is stored in the nasal discharge storage structure and does not enter the suction port, so that suction is performed. It is possible to prevent runny nose from adhering to the tube connected to the mouth. Therefore, it is possible to save the trouble of cleaning the tube each time it is used. Since the inflow port and the suction head are removable, and the suction port and the tube are also removable, hygiene can be achieved by removing the suction head and the suction port from the nasal juice storage structure and cleaning the nasal juice storage structure. Can be maintained.

As described above, the present invention can provide a nasal discharge storage structure that prevents the nasal discharge that has flowed into the nasal discharge storage structure from flowing to the side that generates negative pressure, and a nasal discharge aspirator that uses the nasal discharge storage structure.

The perspective view of the nasal mucus aspirator using the nasal mucus storage structure which concerns on embodiment of this invention. An exploded perspective view of the nasal discharge storage structure of FIG. A central cross-sectional view of the nasal discharge storage structure of FIG. The central longitudinal sectional view of the nasal discharge storage structure of FIG. A perspective view of a nasal discharge aspirator using the nasal discharge storage structure according to the first modification of the embodiment of the present invention. It is a cross-sectional view when the nasal discharge storage structure of FIG. 5 is cut horizontally at the position of the nasal discharge returning means, FIG. The figure when it is turned up. A central cross-sectional view of a nasal discharge storage structure according to a second modification according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Since the embodiments described below are suitable specific examples of the present invention, various technically preferable limitations are attached, but the scope of the present invention particularly limits the present invention in the following description. Unless otherwise stated, the present invention is not limited to these aspects.
In the figures below, the parts with the same reference numerals have the same configuration. Further, in the following figures, the X direction is the longitudinal direction of the nasal discharge storage structure 40, the Y direction is the width direction of the nasal discharge storage structure 40, and the Z direction is the depth direction of the nasal discharge storage structure 40. The X, Y, and Z directions are orthogonal to each other.

FIG. 1 is a perspective view of a nasal discharge aspirator 10 according to an embodiment of the present invention, and the nasal discharge aspirator 10 is also called a nasal mucus aspirator or a nasal mucus aspirator, and is used to remove nasal discharge (also referred to as nasal discharge). Used. The purpose of removing nasal discharge is to make breathing easier and to prevent diseases such as otitis media and sinusitis caused by bacteria in the nasal discharge. In particular, infants do not blow their noses by themselves, so they are prone to nasal congestion, and the nasal discharge aspirator 10 is effectively used to remove the nasal discharge. The present embodiment is a nasal discharge aspirator 10 suitable for this infant. However, the nasal discharge aspirator 10 of the present invention is not limited to infants.

The nasal discharge aspirator 10 of FIG. 1 has a suction head 20 that is inserted into the nasal passage of the nose NZ to suck nasal discharge, a nasal discharge storage structure 40 that collects nasal discharge sucked by the suction head 20, and a negative pressure inside the suction head 20. It has a tube 50 for drawing air and a negative pressure generating portion 60 for generating a negative pressure.
The suction head 20, the nasal juice storage structure 40, the tube 50, and the negative pressure generating portion 60 are connected to each other in this order, and the space S4 in the suction head 20 and the inner space S of the nasal juice storage structure 40 are connected to each other. It communicates with the space S5 in the tube 50. Then, by applying a negative pressure to the inside of the tube 50 by the negative pressure generating portion 60, the nasal discharge is sucked from the suction head 20 via the nasal discharge storage structure 40.

The nasal discharge aspirator 10 of FIG. 1 is an electric type in which a known electric pump is used for the negative pressure generating unit 60. For example, inside the negative pressure generating unit 60, there is a power supply unit 61 and a pump 62 that operates by receiving a power supply from the power supply unit 61, and the pump 62 is driven into the tube 50. Inhales the air to generate a constant negative pressure. This negative pressure acts as a suction force for nasal discharge. The suction force of the pump 62 can be controlled by the operation unit 64. The nasal discharge aspirator 10 of the present invention is not limited to the electric type, but is a type in which an operator such as a parent holds the tip of the tube 50 and sucks it by mouth, or a manual type dropper or pump is used to apply negative pressure. It may be a type that generates and sucks nasal discharge.

The tube 50 is a tubular having a space S5 inside thereof, and is a passage for drawing air. The tube 50 is preferably made of a flexible material such as silicone rubber and has elasticity and flexibility. The length of the tube 50 is arbitrary, but in the case of the present embodiment, the length is set to 1 m or more so that the tube 50 is separated from the electric negative pressure generating portion 60, thereby preventing the motor noise and the like from scaring the infant. There is. The tube 50 and the negative pressure generating portion 60 are removable.

The nasal discharge storage structure 40 has a casing 43 having an inner space S for storing the sucked nasal discharge. The casing 43 is transparently formed of a hard plastic resin such as polycarbonate. The casing 43 has a head connecting portion 25 to which the suction head 20 is connected on the front end side, and has a tube connecting portion 53 to which the tube 50 is connected on the rear end side (negative pressure generating portion 60 side). It is arranged between the suction head 20 and the tube 50. As a result, the sucked nasal mucus stays in the nasal discharge storage structure 40 and is prevented from entering or adhering to the tube 50. Therefore, it is possible to save the trouble of cleaning the tube 50 each time it is used. In addition, since the conventional electric nasal discharge aspirator has a mechanism in which nasal discharge invades or adheres to the tube during the process of use, the electric pump is driven after use to suck the cleaning liquid into the tube. Is cleaning. Therefore, in the conventional electric nasal discharge aspirator, a tank capable of accommodating the cleaning liquid after cleaning the tube is arranged between the tube and the electric pump. However, in this embodiment, since the invasion or adhesion of the nasal discharge into the tube 50 is prevented, such a tank is unnecessary.
The suction head 20 and the head connecting portion 25, and the tube 50 and the tube connecting portion 53 are each detachable, and the suction head 20 and the tube 20 can be removed to clean the casing 43.

The casing 43 is formed with an inflow port 41 through which nasal discharge flows into the inner space S, and a suction port 42 for applying a negative pressure to the inner space S to draw air. The inflow port 41 is an opening for guiding nasal discharge to the inner space S of the casing 43, and communicates with the space S4 in the suction head 20. The suction port 42 is an opening for drawing air from the inner space S of the casing 43 into a negative pressure state, and communicates with the space S5 in the tube 20 and the space in the protrusion 46 described later.

As shown in FIG. 1, the casing 43 is a rectangular parallelepiped or an ellipsoid as a whole, and the length direction X connecting the inflow port 41 and the suction port 42 has dimensions in the width direction Y and the depth direction Z orthogonal to the length direction X. The dimension X1 is relatively large (hereinafter, the length direction X is referred to as the longitudinal direction X). Therefore, there is a long casing 43 along the direction connecting the suction head 20 and the tube 50. Therefore, since the nasal discharge storage structure 40 is located immediately at the rear end side of the suction head 20, there is little intimidation even in front of the face of the person to be operated, such as an infant, in which the suction head 20 is inserted into the nostril. The burden on infants who dislike suction movements can be reduced.
The depth direction Z of the casing 43 is orthogonal to the longitudinal direction X, and is a direction connecting the thumb TF and the other finger AF when the casing 43 is sandwiched between the thumb TF and the other finger AF. The dimension Z1 in the depth direction Z of the casing 43 in the figure is about 25 mm, which is smaller than the dimension X1 in the longitudinal direction X and the dimension Y1 in the width direction Y, and can be comfortably sandwiched between the thumb TF and other finger AF. ..

The dimension Y1 in the width direction Y of the casing 43 is smaller than the dimension X1 in the longitudinal direction X, and the dimension Y1 in the figure is about 40 mm. When the dimension Y1 in the width direction Y is small as described above, the casing 43 is easily hidden by the nose NZ when the suction head 20 is inserted into the nostril, and the visibility of the user into which the suction head 20 is inserted is lowered. Can be done.
In order to make the shape of the casing 43 inconspicuous as described above and to allow the nasal discharge to be stored in the inner space S without any trouble, the dimension X1 in the longitudinal direction X in the drawing is set to be about 75 mm or more. As a result of the investigation, since the amount of nasal discharge sucked at one time is at most about 10 g, even if 10 g of nasal discharge is stored in the inner space S, the nasal discharge is prevented from entering the suction port 42. This point will be described in detail later.
If the dimension X1 of the casing 43 in the longitudinal direction X is too large, it will hit the palm of the hand when gripped by the thumb TF and other finger AF, and it will be difficult to grip the casing 43. Therefore, it is preferably about 85 mm or less.

A recessed portion 52 corresponding to the operator's thumb TF is formed on the upper surface (outer surface in the depth direction Z) of the casing 43. The recessed portion 52 has a concave shape corresponding to the bulge of the thumb TF, and the thumb TF and the recessed portion 52 can be fitted to improve the ease of holding. The casing 43 of the present embodiment has a recessed portion 52 (see FIG. 4) similar to the recessed portion 52 on the upper surface formed on the lower surface thereof, so that the casing 43 can be easily gripped without any problem even if the upper surface and the lower surface are reversed. ing. Further, the presence of the recessed portions 52 on the upper and lower surfaces in this way makes it more difficult to slip. That is, the recessed portion 52 on the upper surface is fitted to the thumb TF, but as shown in FIG. 1, a gap is generated between the finger AF supporting the casing 43 and the recessed portion 52 on the lower surface, and if the recessed portion 52 on the lower surface is mistakenly formed on the lower surface. Even if the nasal discharge flows, the nasal discharge can flow through the gap (that is, the recess) to prevent slipping. The recessed portion 52 in the figure has an elliptical shape that is long in the longitudinal direction X in the front view.

The suction head 20 has an insertion portion 21 to be inserted into the nostril and a nose pad 28 to abut around the nostril. An opening for sucking nasal discharge is formed at the tip of the insertion portion 21, and this opening is connected to the inner space S4. The nose pad 28 is a stopper that spreads like an umbrella so that the suction head 20 is not inserted too deep into the nostrils. Such a suction head 20 is made of a flexible material, for example, a silicone resin.

The features of the nasal discharge aspirator 10 of the present embodiment are as described above, and the above-mentioned nasal discharge storage structure 40 has further features, which will be described with reference to FIGS. 2 to 4.
2 is an exploded perspective view of the nasal discharge storage structure 40 of FIG. 1, FIG. 3 is a central cross-sectional view of the nasal discharge storage structure 40 of FIG. 1, and FIG. 4 is a central vertical sectional view of the nasal discharge storage structure 40 of FIG. be.
The casing 43 of the nasal discharge storage structure 40 has a case body 12 and a lid 13 that can be attached to and detached from each other, and the case body 12 and the lid 13 are connected to each other via a packing (not shown) to allow an inflow port. Air is prevented from leaking from other than 41 and the suction port 42.

The nasal discharge storage structure 40 has a labyrinth structure 30 for forming a labyrinth structure so that the nasal discharge flowing in from the inflow port 41 does not enter the suction port 42. The labyrinth structure 30 in the figure is locked with a protruding piece 29 protruding from the inner bottom surface 43B of the case body 12, and specifically, the protruding piece 29 is inserted into a hole 36 formed in the labyrinth structure 30. As a result, the labyrinth structure 30 is also detachable from the case body 12. In this way, the case body 12, the lid 13, and the labyrinth structure 30 are separable from each other, so that the inside of the casing 43 can be easily cleaned.

The labyrinth structure 30 is arranged between the inflow port 41 and the suction port 42 in the casing 43, and has a collision wall 31 on which the inflowing nasal discharge collides. A storage space S1 for collecting nasal discharge is formed in the casing 43 between the collision wall 31 and the inflow port 41. Therefore, the momentum of the nasal discharge flowing from the inflow port 41 can be stopped by the collision wall 31, and the nasal discharge can be stored in the storage space S1 as it is.
In this storage space S1, as shown in FIG. 4, the space below the virtual line connecting the inflow port 41 and the suction port 42 (the space that does not cover the inflow port 41 and the suction port 42) Sa is about 5 g of nasal discharge. Has a volume that can store. As a result of the demonstration, since most nasal discharge of infants weighs 1 to 2 g, the volume of this space Sa can be sufficiently large for nasal discharge storage. The inflow port 41 and the suction port 42 are located at the centers of the depth direction Z and the width direction Y, respectively, as shown in FIGS. 3 and 4.

The collision wall 31 in the figure is a plate-shaped (preferably thin plate-shaped) wall, and the main surface 31C on the inflow port 41 side is arranged toward the inflow port 41, and the main surface 31D on the suction port 42 side is arranged. It is arranged toward the suction port 42. Specifically, as shown in FIG. 3, the collision wall 31 is arranged so that the central portion in the width direction Y is closest to the suction port 42, and the inflow port gradually increases toward both end portions 31B and 31B in the width direction Y. The main surfaces 31C and 31D are inclined so as to be located on the 41 side, and in the case of the figure, they are curved. Therefore, the runny nose MU is likely to be accumulated on the curved surface of the collision wall 31 when the inflow port 41 is turned up. As shown in FIGS. 3 and 4, the collision wall 31 is curved only in the width direction Y, but the present invention is not limited to this. For example, the depth direction Z is both ends from the central portion thereof. It may be curved so as to be gradually located on the inflow port 41 side toward the portions 31A and 31A.

Then, in the collision wall 31, both ends 31A and 31A in the depth direction Z are formed on the inner surfaces of the casing 43 in the depth direction Z (the inner bottom surface of the case body 12 and the back surface of the lid 13 in FIG. 2) 43B and 43B. In contact with each other, the nasal juice in the storage space S1 is prevented from going from above and below in the depth direction Z in the casing 43 toward the suction port 42 as much as possible. The labyrinth structure 30 of the present embodiment is removable from the casing 43, and the end portion 31A and the inner surface 43B are in contact with each other. However, the present invention is not limited to this, and for example, the labyrinth structure 30 is casing. The end portion 31A and the inner surface 43B may be fixed by connecting to the 43.

Then, both end portions 31B and 31B in the width direction Y orthogonal to the longitudinal direction X connecting the inflow port 41 and the suction port 42 in the collision wall 31 are placed on the inner surface 43A in the width direction Y of the casing 43 adjacent thereto. It extends to the suction port 42 side along the inner surface 43A without contacting. As a result, the labyrinth structure 30 has a pair of narrow road walls 32 that form a pair of narrow road portions 45 with the inner surface 43A. In the nasal discharge storage structure 40, one and the other in the width direction Y are symmetrical with respect to the virtual line connecting the inflow port 41 and the suction port 42, and one of the width directions Y (for example, the upper side in FIG. 3). The narrow road portion 45 and the narrow road wall 32 and the other narrow road portion 45 and the narrow road wall 32 in the width direction Y (for example, the lower side of FIG. 3) have the same configuration.

The narrow road wall 32 is a plate-shaped (preferably thin plate-shaped) wall, and both ends 32A and 32A in the depth direction Z are in contact with the inner surfaces 43B and 43B of the casing 43 in the depth direction Z. As described above, the labyrinth structure 30 of the present embodiment is removable from the casing 43, and the end portion 32A and the inner surface 43B are in contact with each other. However, the present invention is not limited to this, and the end portion 32A is not limited to this. And the inner surface 43B may be connected and fixed.
In this way, the narrow road portion 45 defined by the narrow road wall 32 and the inner surfaces 43A and 43B of the casing 43 can be used as a passage for sucking air from the inflow port 41 toward the suction port 42. The broken line arrow in FIG. 3 indicates this air flow, and the air flowing from the inflow port 41 collides with the collision wall 31 through the storage space S1, and then the end portion 31B of the collision wall 31 and the inner surface of the casing 43. It enters the narrow road portion 45 from the gap (entrance of the narrow road portion 45) 45A with 43A, and enters the suction port 42 so as to go around the end portion 32B on the suction port 42 side of the narrow road wall 32.
Further, the narrow road portion 45 is a narrow road for effectively preventing the inflow of viscous nasal discharge to the suction port 42 side. In particular, in the case of a nasal discharge having a high viscosity and a large amount due to a cold or the like, even if the nasal discharge is caught near the narrow entrance 45A of the narrow road portion 45 or invades the narrow road portion 45, the nasal discharge becomes the narrow road portion 45. It becomes difficult to move due to the contact with the nasal discharge, and it is easy to prevent the inflow of nasal discharge to the suction port 42 side by the narrow road portion 45. The narrowness of the narrow road portion 45 may be determined by the negative pressure generated by the negative pressure generating portion 60 (see FIG. 1), and the negative pressure of the negative pressure generating portion 60 of the present embodiment is -30 kPa to -80 kPa, and the narrow road portion 45 is narrow. The width dimension (dimension between the inner surface 43A and the narrow road wall 32) W1 of the portion 45 is about 5 mm, and the height is about 18 mm to 20 mm, which is the same as the dimension in the depth direction Z inside the casing 43. ..

As shown in FIGS. 2 and 3, the two narrow road walls 32, 32 are connected to each other by a connecting portion 37, thereby preventing the narrow road walls 32, 32 from approaching or separating from each other. , The interval W1 of the narrow road portion 45 is maintained. The connecting portion 37 has a flat plate shape with the main surface facing up and down, and a hole 36 (see FIG. 2) into which the protruding piece 29 protruding from the case body 12 described above is inserted is formed in the connecting portion 37. ing. Further, as shown in FIG. 4, the connecting portion 37 is preferably arranged on a virtual line connecting the inflow port 41 and the suction port 42, and the flow of nasal discharge to the second preliminary storage space S3, which will be described later, is as much as possible. I try not to interfere.

Here, the extended end 32B of the narrow road wall 32 of FIG. 3 is arranged on the tube 50 side (rear end side) of the suction port 42, and the suction port 42 is a pair of narrow road walls 32, It is sandwiched between 32 through a space. The length X2 of the narrow road wall 32 in the drawing in the extending direction is about 35 mm. Specifically, the suction port 42 is formed at the tip end portion (tip surface in the case of the drawing) of the projecting portion 46 projecting toward the collision wall 31 side in the casing 43, and the tip end portion of the projecting portion 46 is a narrow path. It is arranged closer to the collision wall 31 than the extended end (end on the tube 50 side) 32B of the casing wall 32. Therefore, even if the nasal discharge passes through the narrow road portion 45, the nasal discharge does not enter the suction port 42 at least immediately, and the nasal discharge storage structure 40 is used with the suction port 42 side down. Can also be stored in the space S2 between the end 32B of the narrow road wall 32 and the protrusion 46 (around the root of the protrusion 46). Therefore, this space S2 is a preliminary storage space S2 that can store the nasal discharge in the casing 43 even if the nasal discharge flows to the suction port 42 side.
In the present embodiment, the inflow port 41 is also formed on the tip surface of the protruding portion 67 protruding toward the collision wall 31 in the casing 43. As a result, for example, when the drive of the pump is stopped and the inflow port 41 side is turned down, the nasal juice is collected in the space between the inner surface of the longitudinal direction X and the protruding portion 67 (around the root of the protruding portion 67), and the nasal juice is collected. It is possible to prevent backflow to the inflow port 41 and prevent nasal juice from leaking from the suction head 20.

Further, as described above, the collision wall 31 has a plate shape, is between the main surface 31D of the collision wall 31 and the suction port 42, and is between the pair of narrow road walls 32, 32. In addition to the storage space S1 between the collision wall 31 and the inflow port 41, a reserve storage space S3 for storing nasal discharge is formed in the vehicle. That is, the reserve storage space S2 between the end portion 32B of the narrow road wall 32 and the protrusion 46 is the first reserve storage space S2, and the space between the collision wall 31 and the suction port 42 is the second reserve. It becomes the storage space S3. The distance X5 between the collision wall 31 and the suction port 42 in FIG. 4 is about 30 mm. Therefore, if the nasal discharge passes through the narrow road portion 45 and enters the suction port 42 side and then the inflow port 41 side is turned down, the nasal discharge can be stored in the second preliminary storage space S3.

As shown in FIG. 3, the dimension Y2 of the projecting piece 29 in the width direction Y is smaller than the distance between the two narrow road walls 32 and 32, and the nasal discharge that wraps around the end 32B of the narrow road wall 32 The passage portion 18 (see FIG. 2) between the projecting piece 29 and the narrow road wall 32 can be entered into the collision wall 31 side of the preliminary storage space S3. The projecting piece 29 in the figure has a flat plate shape, and its main surface is arranged so as to face the suction port 42. As a result, the nasal discharge collected on the main surface 31D of the collision wall 31 of the preliminary storage space S3 through the passage portion 18 has a protruding side 29 as a barrier against suction, and it is effective that the nasal discharge is sucked into the suction port 42. Is prevented. Further, as shown in FIG. 4, in the projecting piece 29, the distance X3 to the collision wall 31 and the distance X4 to the suction port 42 are substantially the same, and the end portion 29A in the depth direction Z is a lid. It is in contact with the inner surface of 13 (the end of the protruding piece 29 opposite to the end 29A is fixed to the case body 12).

By the way, of the first and second preliminary storage spaces S2 and S3, the space below the virtual line connecting the inflow port 41 and the suction port 42 in FIG. 4 (the space that does not cover the inflow port 41 and the suction port 42) Sb. Has a volume that can store about 5 g of nasal discharge. Therefore, a total of 10 g of nasal discharge can be stored in the space Sa on the inflow port 41 side and the space Sb on the suction port 42 side with reference to the collision wall 31. In the case of infants, the amount of nasal discharge at one time is considerably less than 10 g, so that the nasal discharge can be stored in the casing 43 without any trouble. The casing 43 is substantially vertically symmetrical with respect to the virtual line connecting the inflow port 41 and the suction port 42, and the casing 43 is similarly inverted regardless of whether the lid 13 is turned up or down. It has a structure that can store 10 g of nasal juice inside.

The nasal mucus aspirator 10 according to the embodiment of the present invention is configured as described above. Therefore, even if the depth of the casing 43 of the nasal mucus storage structure 40 is small, the nasal mucus sucked by having a labyrinth structure is provided. Can be prevented from adhering to the tube 50 through the suction port 42. That is, with a normal suction amount of nasal discharge, nasal discharge can be stored in the storage space S1 on the inflow port 41 side of the collision wall 31 (therefore, the storage space S1 can be said to be the main storage space). Then, when the suction amount of the nasal discharge is large and the nasal discharge passes through the narrow road portion 45, when the suction port 42 is below, the first first between the end portion 32B of the narrow road wall 32 and the protruding portion 46. The nasal discharge can be stored in the preliminary storage space S2, and when the suction port 42 is on the upper side, the nasal discharge can be stored in the second preliminary storage space S3 between the collision wall 31 and the suction port 42. Further, since the nasal discharge storage structure 40 is substantially vertically symmetrical, the same storage is possible even if the nasal discharge storage structure 40 is turned upside down. Thus, regardless of the orientation, the nasal discharge can be stored in the casing 43 without any trouble, and the risk of the nasal discharge being drawn into the suction port 42 can be effectively prevented.

[First modification]
Next, a first modification of the above embodiment will be described with reference to FIGS. 5 and 6.
FIG. 5 is a perspective view of a nasal discharge aspirator 72 using the nasal discharge storage structure 70 according to the first modification, and FIG. 6 is a horizontal view of the nasal discharge storage structure 70 of FIG. 5 cut horizontally at the position of the nasal discharge return means 74. It is a cross-sectional view, FIG. 6A is a view when the suction port 42 is down, and FIG. 6B is a view when the suction port 42 is up.
The nasal discharge aspirator 72 in these figures differs from the nasal discharge aspirator 10 in FIGS. 1 to 4 in that the nasal discharge returning means 74 is formed in the nasal discharge storage structure 70.

That is, the plate-shaped collided wall 31 having an inclined surface so that the central portion in the width direction Y is convex toward the suction port 42 is located near the boundary between the collided wall 31 and the narrow road wall 32. A nasal discharge returning means 74 is formed. The nasal discharge returning means 74 is a notch formed on the peripheral edge of the labyrinth structure 30 and / or a through hole penetrating in the thickness direction of the labyrinth structure 30, and is suction as shown in FIG. 6 (B). When the nasal discharge MU is excessively accumulated in the second preliminary storage space S3 with the mouth 42 facing up, it exerts a function of dropping the nasal discharge back into the storage space S1. Since the suction port 42 is an opening facing the second preliminary storage space S3, the accumulation of nasal discharge in the second preliminary storage space S3 draws the nasal discharge into the suction port 42, although there is a barrier due to the protruding side 29. It is the highest risk condition. Therefore, in order to reduce this risk, a nasal discharge returning means 74 is provided so that the nasal discharge accumulated in the second preliminary storage space S3 falls into the storage space S1 by its own weight. As shown in FIG. 5, the nasal discharge returning means 74 of this modified example has a notch portion so as to be the farthest from the suction port 41 among the KLs near the boundary. The nasal discharge returning means 74 does not face the inflow port 41.

The nasal discharge returning means 74 composed of the notch is formed in the KL near the boundary between the collision wall 31 and the narrow road wall 32 because the nasal discharge adhering to the collision wall 31 is conversely stored in the second preliminary storage. This is to prevent it from falling into the space S3. That is, as shown in FIG. 6A, since the collision wall 31 is inclined so that the central portion in the width direction Y is convex toward the suction port 42, the normal suction amount of 1 to 2 g of nasal discharge. In the state of, the nasal discharge is in a state of being attached to this inclined surface of the collision wall 31. At this time, if, for example, a notch or a through hole is provided in the central portion 31a of the collision wall 31 in the width direction Y, for example, the amount of nasal discharge there is large and heavy, so that the nasal discharge falls into the second reserve storage space S3. There is a risk of doing. However, since the amount of nasal discharge in the KL near the boundary between the collision wall 31 and the narrow road wall 32 is small, the risk of falling is reduced even if the nasal discharge returning means 74 is present there. Further, the nasal discharge returning means 74 is a small notch that does not fall due to the viscosity of the nasal discharge at least with a normal suction amount of 1 to 2 g, and in the case of this modified example, each opening area does not exceed ^{about 6 mm 2.} It is said that.

By the way, when the collision wall 31 is inclined so that the central portion in the width direction Y is convex toward the suction port 42, as shown in FIG. 6B, when the suction port 42 is turned up, it is covered. On the contrary, the amount of nasal discharge MUa in the KL near the boundary between the collision wall 31 and the narrow road wall 32 increases. Therefore, the nasal discharge in the second preliminary storage space S3 tends to fall into the storage space S1 through the notch 74.
As in the first modification, all of the end faces 31A and 32A (see FIG. 2) of the collision wall 31 and the narrow road wall 32 in the depth direction Z do not have to be in contact with the inner surface of the casing 43. No.

By the way, the present invention is not limited to the above-described embodiment, and the individual configurations of the above-described embodiment may be omitted or combined with other configurations not described, if necessary.
For example, the above-mentioned collision wall 31 is inclined so that the central portion in the width direction Y is convex toward the suction port 42, but the present invention is not limited to this. At this time, as shown in FIG. 7 according to the second modification of the above embodiment, the collided wall 31 has a straight main surface along the width direction Y, and both ends of the collided wall 31 in the width direction Y. A pair of extending portions 80 extending from each of the portions 31A and 31A toward the inflow port 41 side along the inner surface 43A may be provided.

10, 72 ... Nasal juice aspirator, 20 ... Suction head, 30 ... Labyrinth structure, 31 ... Collision wall, 32 ... Narrow road wall, 40 ... Nasal juice storage structure , 41 ... Inflow port, 42 ... Suction port, 43 ... Casing, 46 ... Protruding part, 50 ... Tube, 52 ... Recessed part, 60 ... Negative pressure generating part ( (Electric pump), S ... storage space, S1 ... main storage space, S2 ... first reserve storage space, S3 ... second reserve storage space

Claims (5)

A nasal discharge storage structure in which an inflow port into which nasal discharge flows into a casing and a suction port for drawing the nasal discharge are formed, and the nasal discharge flowing in from the inflow port is stored in the casing.
A labyrinth structure for forming a labyrinth structure is provided in the casing so that the inflowing nasal discharge does not enter the suction port.
The labyrinth structure
It is a wall that is arranged between the inflow port and the suction port and collides with the inflowing nasal juice, and the end portion in the width direction orthogonal to the length direction connecting the inflow port and the suction port is said. A collision-affected wall formed so as not to come into contact with the inner surface of the casing in the width direction,
For narrow roads, a narrow road portion is formed between the end of the collision wall and the inner surface in the width direction by extending toward the suction port side along the inner surface in the width direction. Has a wall and
A storage space for collecting the nasal discharge is formed between the collision wall and the inflow port.
The nasal discharge storage structure is characterized in that the collision wall and the narrow road wall are in contact with or fixed to an inner surface in a depth direction orthogonal to both the length direction and the width direction of the casing. body. The suction port is formed at the tip of a protruding portion in the casing that protrudes toward the collision wall side, and is arranged closer to the collision wall side than the extended end of the narrow road wall. The nasal discharge storage structure according to claim 1, wherein the nasal discharge storage structure is characterized by the above. The collision wall is plate-shaped, and a preliminary storage for storing the nasal discharge between the collision wall and the suction port is separate from the storage space between the collision wall and the inflow port. The nasal discharge storage structure according to claim 1 or 2, characterized in having a space. The nasal discharge storage structure according to any one of claims 1 to 3, wherein the casing has a recessed portion corresponding to the thumb of the operator on the outer surface in the depth direction. The nasal discharge storage structure according to any one of claims 1 to 4 and
A suction head that is inserted into the nostrils and sucks nasal discharge,
A tube that draws air and
A nasal discharge aspirator with an electric pump that generates negative pressure.
In the nasal discharge storage structure, the suction head can be attached to and detached from the inflow port, and one end of the tube can be attached to and detached from the suction port.
In the electric pump, the other end of the tube is removable, and the tube is connected to the suction port of the nasal discharge storage structure, and the tube is connected to the inflow port of the nasal discharge storage structure. A nasal discharge aspirator characterized by creating a negative pressure inside the suction head.

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