JP6676307B2 - Nasal washer - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a nasal irrigator for washing a nasal cavity by pouring an irrigation solution from the nostrils.

  As a conventional nasal irrigator, for example, a nasal irrigator described in Patent Document 1 is known. The nasal irrigator described in Patent Literature 1 includes a container in which a cleaning liquid is stored, a lid for closing an upper opening of the container, a pipe having an upper end with a nozzle having an injection port capable of jetting the cleaning liquid, and a lower end of the pipe. And a hose connected to the The pipe is slidably attached to the lid up and down. When the nasal irrigator described in Patent Literature 1 is not used, by pushing a pipe into a container, the whole becomes compact, easy to handle, and convenient to carry. On the other hand, at the time of use, the washing liquid can be sprayed into the nasal cavity by pulling out the pipe from the container and inserting the nozzle into the nasal cavity.

Japanese Patent No. 3202973

  However, in the nasal irrigator described in Patent Literature 1, since the pipe having the nozzle is slidably attached to the lid, there are problems that the number of parts is large and the structure is complicated. In addition, the nasal irrigator needs to be used in a sanitary manner. However, in the nasal irrigator described in Patent Literature 1, a part of the pipe exposed to the outside of the container during use is not inside the container when not in use. Therefore, dirt attached to the pipe at the time of use may be mixed into the inside of the container, and there is a problem in hygiene.

  The present invention has been made to solve the above problems, and has as its object to provide a nasal irrigator that has a simple structure and can be used in a sanitary manner.

  An object of the present invention is to provide a nasal irrigator for washing a nasal cavity by pouring an irrigation liquid from an external nostril, a container capable of storing the irrigation liquid, a lid detachably attached to the container, and an upper part attached to the lid. This is achieved by a nasal irrigator comprising a nozzle formed so as to protrude toward and having an injection port at an upper end, and a hose attached to a surface of the lid opposite to the nozzle so as to communicate with the nozzle. You.

  In the nasal washing device having the above configuration, it is preferable that the nozzle is provided at a position shifted from a center position of the lid.

  Further, it is more preferable that the container is formed in a flat shape.

  Further, it is more preferable that the nozzle has a plurality of the injection ports.

  Further, the container has a front surface, a back surface, a left side surface, and a right side surface connected in a cylindrical shape, and the front surface and the back surface are formed so as to be flat along a vertical direction, and the left side is formed. More preferably, the surface and the right side surface are formed so as to form a convex shape along the vertical direction.

  The container and the lid are fixed to each other by fastening a male screw and a female screw. The male screw has a protrusion at the end of a screw thread, and the female screw has the protrusion at the time of fastening with the male screw. It is more preferable to have a groove in which the thread fits.

  According to the nasal rinser of the present invention, since the nozzle is provided integrally with the lid, the number of parts of the nasal rinser can be reduced and the structure can be simplified. In addition, since the nozzle is exposed to the outside of the container during use and non-use and does not fit inside the container, it can be preferable in terms of hygiene.

It is a front view of a nasal washing device concerning one embodiment of the present invention. FIG. 2 is a right side view of the nasal irrigator of FIG. 1. FIG. 2 is a plan view of the nasal irrigator of FIG. 1. FIG. 2 is an enlarged view of an AA cross section in FIG. 1. FIG. 5 is a partially enlarged view of FIG. 4. In FIG. 5, the hose is omitted. It is a front view of a container. FIG. 7 is a right side view of the container of FIG. 6. FIG. 7 is a plan view of the container of FIG. 6. FIG. 7 is a partially enlarged view of FIG. 6. It is a right view of a lid. It is a front view of the lid of FIG. It is a top view of the lid of FIG. It is a bottom view of the lid of FIG. It is an enlarged view of the BB cross section of FIG. It is an enlarged view of CC section of FIG. It is a partial sectional view which expands and shows the state where the projection of the male screw of the container was fitted in the slot of the female screw of the lid. It is the (a) front view, the (b) top view, and the (c) bottom view of a valve member. It is a figure ((a) Example and (b) Comparative example) which shows the state in which the cleaning liquid was discharged from the ejection opening. It is sectional drawing (sectional drawing in alignment with the AA of FIG. 1) of the nasal irrigator using the hose of a modification. It is a bottom view of the lid of a modification. FIG. 12 is a cross-sectional view (a cross-sectional view taken along line CC in FIG. 11) of a lid according to a modified example.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 3 show an external configuration of a nasal washing device 1 according to an embodiment of the present invention, and FIG. 4 shows an internal configuration. In the following description, the XY directions in FIGS. 1 and 2 are referred to as up and down directions, the UV direction in FIGS. 1 and 3 is referred to as left and right directions, and the ST direction in FIGS. 2 and 3 is referred to as front and rear directions. I have. The same applies to FIGS. 6 to 8.

  The nasal irrigator 1 includes a container 2 capable of storing a cleaning liquid, a lid 3 detachably attached to the container 2, a nozzle 4 integrally formed so as to protrude upward from the lid 3, and a lid 3. And a hose 5 attached to the surface opposite to the nozzle 4 so as to communicate with the nozzle 4.

  As the cleaning liquid stored in the container 2, a known liquid such as physiological saline in this type of nasal irrigator can be used, but it is preferable to include a fragrance to impart a refreshing feeling.

  Examples of the flavor component include peppermint oil, citrus essential oil, peppermint oil and l-menthol, and at least one selected from the group consisting of peppermint oil and citrus essential oil, peppermint oil and l-menthol. Preferred examples include those prepared in combination. The citrus essential oil can be selected from conventionally known oils, and is not particularly limited. Examples thereof include lemon oil, lime oil, grapefruit oil, orange oil, mandarin oil, and bergamot oil. These citrus essential oils may be used alone or in combination of two or more. The citrus essential oil can be prepared from various citrus fruits as a raw material by a conventionally known method such as a steam distillation method or a solvent extraction method, or a commercially available one can be used.

  As the peppermint oil, those obtained by the above-mentioned essential oil preparation method can be used, and those commercially available can also be used. As for the peppermint oil, those obtained by the above-mentioned essential oil preparation method can be used, and commercially available oils can also be used. As for 1-menthol, commercially available l-menthol can be used.

  As shown in FIGS. 1 to 9, the container 2 has a cylindrical neck portion 21 having an opening 20 at an upper end, and a hollow and bottomed body portion 22 provided continuously with the neck portion 21 and capable of storing a cleaning liquid. It has. The material of the container 2 is not particularly limited, but is preferably formed of a flexible or elastic synthetic resin or the like, for example, using polyethylene, polypropylene, polyethylene terephthalate, or the like. It can be formed by injection molding or the like. Further, the thickness of the container 2 is preferably from 0.7 mm to 1.3 mm, more preferably from 0.8 mm to 1.0 mm. The container 2 is preferably partially or entirely transparent or translucent, so that the remaining amount of the cleaning liquid inside the container 2 can be confirmed from the outside. As shown in FIG. 4, the bottom surface 22 </ b> E of the container 2 (the body 22) has a central portion that is recessed upward, so that the container 2 can be stably placed on a horizontal table.

  A male screw 23 is formed on the outer peripheral surface of the neck 21. The neck 21 and the lid 3 are connected to each other by fastening the male screw 23 to a female screw 32 formed on the lid 3 described later. The male screw 23 has a screw thread that spirals around, and a projection 24 is integrally provided at the end of the screw thread (end on the side of the body 22 of the container 2). The protrusion 24 is formed on the outer peripheral surface of the neck portion 21 so as to extend in the up-down direction XY, and is orthogonal to the end portion of the thread of the male screw 23. A plurality (four in the present embodiment) of recesses 26 formed at regular intervals are provided below the male screw 23 of the neck 21 so as to extend along the circumferential direction.

  The body portion 22 is formed in a substantially rectangular shape in plan view having a shape larger in plan view than the neck portion 21, and has a front surface 22A, a back surface 22B, a left side surface 22C, and a right side surface 22D connected in a cylindrical shape. In the present embodiment, the body 22 is formed in a rounded shape with a corner 22F in plan view. Further, in the present embodiment, the trunk portion 22 has a flat shape in which the lateral width (length in the front-rear direction ST) of the left and right side surfaces 22C and 22D is shorter than the lateral width (length in the left-right direction UV) of the front surface 22A and the rear surface 22B. Is formed. Thus, the container 2 can be easily grasped by the fingers of the hand. In use, by pressing the front surface 22A and the rear surface 22B of the container 2, a large amount of cleaning liquid can be pushed out.

  The front surface 22A and the back surface 22B of the body 22 have, for example, the following shapes when viewed from front and rear and up and down. That is, the front surface 22A and the back surface 22B are flat along the vertical direction XY as shown in FIG. 7, while being between the corners 22F to 22F along the left-right direction UV as shown in FIG. , And is formed in a shape that is slightly convex outward. Note that “flat” refers to extending linearly, but does not necessarily need to be strictly flat, and allows slight dents and bulges. In the present embodiment, FIG. As shown, the front surface 22A and the back surface 22B are slightly outwardly convex in the vertical direction XY.

  On the other hand, the left and right side surfaces 22C and 22D of the body 22 have, for example, the following shapes when viewed from above and below. That is, the left and right side surfaces 22C and 22D are largely convex outward in the vertical direction XY as shown in FIG. 6, while the corners 22F are formed in the front-rear direction ST as shown in FIG. From the corner 22F.

  As described above, since the left and right side surfaces 22C and 22D of the body 22 are largely convex outward in the vertical direction XY, the front surface 22A and the rear surface 22B of the container 2 are pressed during use. As the pressing force generated at that time is transmitted to the apex of the convex portion, the container 2 is deformed, and it is possible to press effectively. Further, the design of the container 2 can be improved. Furthermore, since the front surface 22A and the back surface 22B of the body 22 are flat along the vertical direction XY, it is easy to grasp the container 2 when gripping it with a plurality of fingers of the hand. 22A and back 22B are easily pressed by a plurality of fingers.

  The front surface 22A and the back surface 22B do not necessarily have to be formed in the above-described shape, and may have a shape that is largely convex outward in the left-right direction UV, or a flat shape in the right-left direction UV. It may be formed in an eggplant shape. Further, the left and right side surfaces 22C and 22D do not necessarily have to be formed in the above-described shape, and may be formed in a shape that is outwardly convex along the front-rear direction ST.

  The height of the front surface 22A and the rear surface 22B is not particularly limited, but the three fingers fit when three fingers (for example, the index finger, the middle finger, and the ring finger) are arranged in the vertical direction XY. It is preferable to have a height of the order. Also, the width of the front surface 22A and the back surface 22B is not particularly limited, but it is preferable that the front surface 22A and the rear surface 22B have such a width that the area from the fingertip of the three fingers to the second joint can be accommodated. This makes it easy to grasp the container 2 when gripping it with a plurality of fingers of the hand, and to easily press the front surface 22A and the back surface 22B with the plurality of fingers during use.

  A mark 25 extending in the left-right direction UV is provided on the front surface 22A and the back surface 22B at the center position in the left-right direction UV. The mark 25 is a measure of the maximum height of the liquid level when the cleaning liquid is poured into the container 2.

  As shown in FIGS. 1 to 5 and FIGS. 10 to 15, the lid 3 includes an upper surface portion 30 formed in a circular shape in a plan view and a cylindrical side surface portion 31 hanging down from an outer peripheral edge of the upper surface portion 30. Have.

  On the inner peripheral surface of the side surface portion 31, there is provided a female screw 32 to be fastened to the male screw 23 provided on the outer peripheral surface of the neck portion 21 of the container 2. By fastening the male screw 23 and the female screw 32 while rotating the lid 3 in one direction with respect to the neck 21 of the container 2, the lid 3 is attached to the neck 21, and the opening 20 of the neck 21 is covered by the lid 3. Thus, the cleaning liquid in the container 2 is sealed. The female screw 32 has a screw thread that spirals around, and the projection 24 provided on the male screw 23 can be fitted into the terminal end side of the screw thread (the opening side at the lower end of the lid 3). A groove 33 of an appropriate size is provided. When the cover 3 is rotated and attached to the neck 21 of the container 2, as shown in FIG. 16, the protrusion 24 of the male screw 23 is fitted into the groove 33 of the female screw 32, so that the lid 3 can be further moved. Rotation with respect to the neck 21 of the container 2 is restricted.

  A knurl 34 is provided on the outer peripheral surface of the side surface portion 31 over the entire circumference to facilitate the rotation operation of the lid 3.

  On the lower surface of the upper surface portion 30, a cylindrical inner ring 35 is provided concentrically with the side surface portion 31 so as to protrude from the lower surface. An annular contact ring 36 having a height lower than that of the inner ring 35 is provided concentrically around the inner ring 35 so as to protrude from the lower surface of the upper surface portion 30.

  The inner ring 35 has an outer diameter substantially equal to the inner diameter of the neck 21 of the container 2, and when the lid 3 is mounted on the neck 21, the outer peripheral surface thereof comes into contact with the inner peripheral surface of the neck 21. I do. Thus, the space between the neck 21 of the container 2 and the inner ring 35 can be sealed in a liquid-tight manner, and the cleaning liquid in the container 2 is prevented from leaking from between the neck 21 and the lid 3.

  The contact ring 36 is provided on the lower surface of the upper surface 30 at a position facing the upper surface of the neck 21 when the lid 3 is attached to the neck 21 of the container 2. When the lid 3 is mounted on the neck 21, the contact ring 36 comes into contact with the upper surface of the neck 21, so that the space between the upper surface 30 of the lid 3 and the neck 21 of the container 2 can also be sealed in a liquid-tight manner. . Therefore, the inside of the container 2 can be more effectively liquid-tightly sealed. In the present embodiment, the shape of the contact ring 36 is formed in a mountain shape with a sharp top in a cross-sectional view. However, the contact ring 36 may have a mountain shape with a round top or a rectangular shape in a cross-sectional view. It may be formed in various shapes as long as it protrudes from the lower surface of the portion 30.

  The nozzle 4 is integrally provided on the upper surface 30 of the lid 3 so as to protrude upward. In this embodiment, since the nozzle 4 is formed integrally with the lid 3, the lid 3 and the nozzle 4 are not composed of multiple parts. The nozzle 4 is formed in a substantially cylindrical shape, and is formed in a shape that tapers toward an upper end so as to be easily inserted into a nasal cavity from a nostril. In the present embodiment, the upper portion 40 of the nozzle 4 is tapered to a greater degree and sharply tapered, whereas the intermediate portion 41 and the lower portion 42 are tapered. Are small and gently tapered. The upper portion 40 indicates a predetermined portion below the upper end of the nozzle 4.

  The nozzle 4 has an injection port 43 for injecting the cleaning liquid at an upper portion 40 thereof, and has a lower end opened. In the present embodiment, the injection port 43 is formed on the top surface portion 46 which is the upper end of the nozzle 4, but may be formed on the side surface of the upper portion 40. In addition, although three injection ports 43 are provided in the present embodiment, at least one injection port 43 may be provided. However, it is preferable that a plurality of injection ports 43 are provided because the cleaning liquid can be injected into the nasal cavity over a wide area and can be evenly distributed in the nasal cavity. When a plurality of injection ports 43 are provided on the top surface 46 serving as the upper end of the nozzle 4, it is preferable to provide them in point symmetry with respect to the center position of the upper end surface (the upper surface of the top surface 46). Thereby, the washing liquid can be more evenly distributed in the nasal cavity.

  Although the shape of the injection port 43 is not particularly limited, in the present embodiment, the shape is such that the diameter increases toward the upper end of the nozzle 4 (a reverse tapered shape). As a result, the area for spraying the cleaning liquid can be expanded, so that the cleaning liquid can be more effectively injected into the nasal cavity over a wide range. The diameter of the injection port 43 (the diameter of the lowest part in the vertical direction XY of the inversely tapered portion) is not particularly limited, but is preferably 1.0 mm to 3.0 mm, and more preferably 1.0 mm to 3.0 mm. 2.0 mm is more preferable, 1.0 mm to 1.8 mm is more preferable, and 1.5 mm in the present embodiment. Accordingly, when the cleaning liquid is sprayed, a proper amount of the cleaning liquid can be sprayed, and the nasal cavity can be more effectively cleaned. The inclination angle α of the injection port 43 is not particularly limited, but is preferably 3 ° to 10 °, and is 5 ° in the present embodiment. Note that, in the present embodiment, the injection port 43 has an enlarged diameter portion 45 formed near the upper end of the nozzle 4 so as to rapidly increase in diameter at an inclination angle larger than the inclination angle α. The radius of curvature R of the enlarged diameter portion 45 is not particularly limited, but is preferably 0.1 mm to 1.0 mm, more preferably 0.1 mm to 0.7 mm, and still more preferably 0.1 mm to 0.5 mm. , 0.2 mm to 0.4 mm is even more preferable, and is 0.3 mm in the present embodiment. By forming the enlarged diameter portion 45 in this manner, when the cleaning liquid is injected from the injection port 43, the cleaning liquid is not linearly diffused and discharged, and the nasal cavity can be more effectively cleaned. .

  The peripheral wall 44 of the nozzle 4 is formed to be thick, so that the strength and shape retention of the nozzle 4 are enhanced. Therefore, when the nozzle 4 is inserted into the nasal cavity from the nostrils, the outer shape of the nozzle 4 is maintained, so that the nozzle 4 can be easily inserted.

  The nozzle 4 is provided on the upper surface 30 of the lid 3 at a position shifted from the center position C (eccentric position), that is, at a position closer to the outer peripheral edge than the center position C. The outer peripheral portion refers to a corner between the upper surface 30 and the side surface 31. Here, if the nozzle 4 is provided at the center position C of the upper surface portion 30 of the lid 3, when the nozzle 4 is inserted into the nasal cavity from the nostrils, the outer peripheral edge of the lid 3 becomes the face (the nose and the mouth). There is a problem that it is difficult to use during the period. On the other hand, if the nozzle 4 is provided at a position deviated from the center position C of the upper surface 30 of the lid 3, the container 2 is gripped so that the nozzle 4 is in front, and the nozzle 4 is moved from the nostril. By inserting the lid 3 into the nasal cavity, the outer peripheral edge of the lid 3 does not hit the face (between the nose and the mouth), and the usability can be improved. The nozzle 4 is provided on the upper surface portion 30 of the lid 3 so that when the lid 3 is attached to the neck portion 21 of the container 2, the nozzle 4 is located on the front surface 22A side or the rear surface 22B side of the container 2 (body portion 22). Preferably.

  The nozzle 4 is provided integrally with a cylindrical tubular portion 37 so as to protrude downward. The hose 5 is connected to the cylindrical portion 37.

  The material of the lid 3 and the nozzle 4 is not particularly limited, but is preferably formed of a flexible or elastic synthetic resin or the like. For example, polyethylene, a thermosetting elastomer, a thermoplastic elastomer It can be formed by injection molding or the like.

  As shown in FIG. 4, the hose 5 is formed in a tubular shape from a flexible material such as a thermosetting elastomer or a thermoplastic elastomer. The hose 5 communicates with the nozzle 4 on the surface on the opposite side of the lid 3 via the cylindrical portion 37. The length of the hose 5 is set such that the lower end of the hose 5 reaches the vicinity of the bottom surface 22E of the container 2. Thus, even if the amount of the cleaning liquid in the container 2 becomes small, the cleaning liquid can be supplied to the nozzle 4 by the hose 5.

  In FIG. 4, the inner diameter of the hose 5 is larger than the outer diameter of the tubular portion 37, and the tubular portion 37 is inserted into the hose 5. However, as shown in FIG. The tubular portion 37 may be connected to the hose 5 by making the hose 5 smaller than the inner diameter of the tubular portion 37 and inserting the hose 5 into the tubular body 37. By reducing the inner diameter of the hose 5 as the outer diameter of the hose 5 is reduced, when the amount of the cleaning liquid in the container 2 becomes small, the cleaning liquid can be easily sucked up.

  Further, in FIG. 4, the hose 5 is formed so as to entirely extend straight, but as shown in FIG. 19, the hose 5 is formed so as to be bent at a predetermined position so as to be entirely in the shape of "". May be. In this case, the length of the hose 5 is set such that the upper end of the hose 5 abuts on the top surface 46 of the upper end of the nozzle 4 and the lower end of the hose 5 reaches the corners of the front surface 22A and the bottom surface 22E of the container 2. Is done. Thereby, when the hose 5 is connected to the nozzle 4, the lower end of the hose 5 always reaches the above-mentioned corner of the container 2, so that when the amount of the cleaning liquid in the container 2 becomes small due to use, the container 2 is removed. By inclining toward the front (the front 22A side) and storing the remaining cleaning liquid in the corners of the front surface 22A and the bottom surface 22E of the container 2, the remaining cleaning liquid can be reliably supplied to the nozzle 4 by the hose 5.

  In using the nasal irrigator 1 configured as described above, a cleaning liquid is poured into the container 2, the lid 3 is attached to the container 2, and then the nozzle 4 is inserted into one nasal cavity of the nose. Then, by gradually pressing the body 22 of the container 2, the cleaning liquid that has passed through the hose 5 flows into the nasal cavity from each of the injection ports 43 of the nozzle 4, and the cleaning liquid is discharged from the other nasal cavity of the nose. Is washed.

  According to the nasal irrigator 1 having the above-described configuration, first, since the nozzle 4 is formed integrally with the lid 3, the lid 3 and the nozzle 4 are not composed of multiple parts. Therefore, the number of parts of the nasal washing device 1 can be reduced and the structure can be simplified. In addition, the nozzle 4 is exposed to the outside of the container 2 during use and non-use, and does not fit inside the container 2, so that the cleaning liquid can be kept hygienic.

  Further, since the nozzle 4 is provided at a position shifted from the center position C of the lid 3, when the container 2 is gripped and the nozzle 4 is inserted into the nasal cavity so that the nozzle 4 is located on the near side, the outer peripheral edge of the lid 3 is The part does not hit the face (between the nose and mouth). Therefore, the nozzle 4 can be inserted regardless of the shape of the user's outer nose, nasal cavity, and the like, and the cleaning liquid can be appropriately sprayed, so that the usability can be improved.

  In addition, since the container 2 is formed in a flat shape, it is easy to hold the container 2 with fingers when in use, and by pressing the front surface 22A and the back surface 22B of the container 2, a large amount of cleaning liquid can be removed from the container 2. It can be extruded and ejected from the nozzle 4.

  In addition, since the nozzle 4 has the plurality of injection ports 43, the cleaning liquid can be injected into the nasal cavity over a wide range, and can be evenly distributed in the nasal cavity. In addition, since the injection port 43 is formed to have a shape that expands in diameter toward the upper end of the nozzle 4, the injection area of the cleaning liquid can be expanded, and the cleaning liquid can be more effectively injected into the nasal cavity over a wide area. can do.

  In addition, since the front surface 22A and the back surface 22B of the container 2 are formed so as to be flat along the vertical direction XY, it is easy to grasp when the container 2 is gripped with a plurality of fingers during use, The front face 22A and the back face 22B can be easily pressed with a plurality of fingers. On the other hand, since the left and right side surfaces 22C and 22D of the container 2 are largely convex outward in the vertical direction XY, when the front surface 22A and the rear surface 22B of the container 2 are pressed during use, As the generated pressing force is transmitted to the apex of the convex portion, the container 2 is deformed, and it is possible to press effectively. In addition, the design of the container 2 can be improved.

  Further, the cover 3 is rotated with respect to the container 2, and the cover 3 is attached to the container 2 by fastening the male screw 23 and the female screw 32. When the male screw 23 and the female screw 32 are fastened, the groove 33 of the female screw 32 is formed. Since the projection 24 of the male screw 23 fits into the container 2, further rotation of the lid 3 with respect to the container 2 after the mounting of the lid 3 on the container 2 is restricted. In addition, by setting the projection 24 and the groove 33 at predetermined positions, when the nozzle 4 is attached to the neck 21 of the container 2, the nozzle 4 is attached to the front 22 A side or the back of the container 2 (body 22). It can be arranged at a desired position such as the 22B side.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to said Embodiment, A various change is possible unless it deviates from the meaning. For example, in the present embodiment, only one nozzle 4 is provided integrally with the lid 3, but two nozzles 4 may be provided integrally with the lid 3. In this case, the two nozzles 4 are provided at positions shifted from the center position C of the lid 3, that is, both the nozzles 4 are provided at positions closer to the outer peripheral edge than the center position C.

  Further, in the present embodiment, the container 2 is configured to have flexibility or elasticity. However, the container 2 is formed of hard glass or the like, and the container 2 is configured to have no flexibility or elasticity. May be.

  Further, in the present embodiment, the lid 3 is detachably attached to the container 2 by fastening the male screw 23 and the female screw 32, but the lid 3 is detachably attached to the container 2 by other means such as fitting of a rib and a groove. A configuration may be adopted.

  Further, in the present embodiment, the container 2 is formed in a flat shape, but is not necessarily required to be formed in a flat shape.

  Further, the nasal irrigator 1 of the present embodiment may be configured to be provided with an air valve of the lid 3 and a check valve of the nozzle 4. As the air valve and the check valve, for example, a valve member 6 shown in FIG. 17 can be used.

  The valve member 6 is formed of, for example, an elastic material such as a silicone resin, and is integrally formed with the disk-shaped base 60 having a size that fits in the inner ring 35 of the lid 3 and with the base 60 so as to penetrate the base 60. It is provided with two cylindrical check valves 61 and air valves 62 having different lengths. The valve member 6 is mounted on the lid 3 by fitting the base 60 into the inner ring 35 of the lid 3. At this time, the portion of the check valve 61 protruding above the base 60 is the cylindrical portion of the lid 3. The portion of the air valve 62 protruding above the base 60 is fitted into an air hole (not shown) formed in the upper surface 30 of the lid 3. The hose 5 is connected to a portion of the check valve 61 protruding below the base 60.

  The check valve 61 is open at both the upper and lower ends, but the opening at the upper end is closed by an opening / closing lid 63. The air valve 62 is open at both the upper and lower ends, but the opening at the lower end is closed by an opening / closing lid 64. The opening / closing lids 63 and 64 are partly and integrally connected to the check valve 61 and the air valve 62, respectively, and open and close the opening by tilting up and down with the part as a fulcrum. Therefore, when the opening / closing lid 63 of the check valve 61 receives the pressure as shown by the arrow P by the cleaning liquid, the opening / closing lid 63 opens upward to allow the passage of the cleaning liquid, so that the cleaning liquid is supplied to the nozzle 4. Even if the opening / closing lid 63 receives a force in the direction opposite to the direction of the arrow P, the opening at the upper end of the check valve 61 is kept closed and the passage of the cleaning liquid is restricted, so that the backflow of the cleaning liquid is prevented. it can. On the other hand, when the opening / closing lid 64 of the air valve 62 receives a pressure as indicated by the arrow Q by air, the opening / closing lid 64 opens downward to allow the passage of air, so that air is supplied into the container 2. In addition, even if the opening / closing lid 64 receives a force in the direction opposite to the arrow Q, the opening at the lower end of the air valve 62 is kept closed to restrict the passage of air, so that air leakage can be prevented. .

  Further, in the above embodiment, the peripheral wall 44 of the nozzle 4 is formed to be thick, but the nozzle 4 does not necessarily need to have a large thickness of the peripheral wall 44, and as shown in FIGS. May be reduced in thickness. 20 and 21 are a bottom view and a cross-sectional view of the lid 3 of the modified example in which the peripheral wall 44 of the nozzle 4 is formed to be thin. In the lid 3 of the present modification, the peripheral wall 44 of the nozzle 4 is provided continuously with substantially the same thickness as the upper surface 30 of the lid 3. The cylindrical portion 37 for connecting the hose 5 hangs down from the top surface portion 46, and a gap S is provided between the cylindrical portion 37 and the peripheral wall 44. As described above, when the peripheral wall 44 of the nozzle 4 is formed thin, the manufacturing cost of the lid 3 can be reduced accordingly. Further, even if the cleaning liquid adheres to the gap S between the root portion of the cylindrical portion 37 and the peripheral wall 44, the cleaning liquid does not dry and remain, so there is no problem in hygiene.

  Note that the right side view, front view, and plan view of the lid 3 of the present modification are the same as those in FIGS. The basic configuration of the lid 3 of the present modified example is the same as that of the lid 3 shown in FIGS. 10 to 15 except that the peripheral wall 44 of the nozzle 4 is made thin, and a detailed description thereof is omitted here.

  When the peripheral wall 44 of the nozzle 4 is made thin, a plurality of longitudinal ribs extending in the vertical direction XY are provided along the peripheral direction on the inner peripheral surface of the peripheral wall 44 to reinforce the strength and shape retention of the nozzle 4. You may make it increase.

  Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited to these examples.

  First, a monitor test was performed using the nasal washer of Example 1 and Comparative Example 1. As the nasal irrigator of Example 1, the nasal irrigator 1 of the present embodiment having the above-described configuration shown in FIGS. 1 to 4 was used. In the nasal irrigator 1 of the present embodiment, the injection port 43 of the nozzle 4 is formed in a reverse tapered shape whose diameter increases toward the upper end of the nozzle 4, and a large diameter portion 45 is provided. On the other hand, as the nasal irrigator of Comparative Example 1, the conventional nasal irrigator described in Background Art was used. In the conventional nasal irrigator, the injection port of the nozzle is formed in an inverted taper shape, but is almost straight, and the enlarged diameter portion is not provided, and the nozzle is formed with substantially the same diameter from the upper end to the lower end of the nozzle. I was The same cleaning liquid (the cleaning liquid of Example 2 described later) was placed in the container for both the nasal irrigators of Example 1 and Comparative Example 1. As a component of the washing solution, peppermint oil as a flavor was dissolved using Polysorbate 80 to prepare a mixture. In addition, glycerin, benzalkonium chloride, sodium chloride, and disodium edetate were dissolved in water as other components, and mixed with the mixture to prepare a washing solution.

  Nasal washing was performed on the panelists (seven persons) using the nasal washing devices of Example 1 and Comparative Example 1, and a sensory evaluation of a refreshing feeling was performed. The sensory evaluation was evaluated on a five-point scale of "satisfied", "somewhat satisfied", "neither", "somewhat dissatisfied", and "dissatisfied". As a result, in the nasal irrigator of Example 1, six persons answered "satisfied", and one person answered "satisfactory". One responded "satisfied," and two responded "satisfactory." As described above, it was confirmed that the nasal irrigator of Example 1 obtained a better evaluation on the refreshing sensation than the nasal irrigator of Comparative Example 1, even though the same washing liquid was used. This result indicates that, in the nasal irrigator of Example 1, as shown in FIG. 18, the injection port of the nozzle is formed in a reverse taper shape, and the enlarged diameter portion is provided, so that the cleaning liquid can be widely spread in the nasal cavity. This is due to being able to eject.

  Next, as the nasal irrigator, the nasal irrigator 1 of the present embodiment having the configuration shown in FIGS. 1 to 4 described above was used, and a cleaning liquid having the composition shown in Table 1 was placed in a container as the cleaning liquid. 7, and a monitor test was performed. Specifically, the washing liquid was prepared by dissolving a fragrance (peppermint oil) using polysorbate 80 to prepare a mixture. Further, other components were dissolved in water according to the formulation in Table 1 to prepare an aqueous solution. The prepared mixture and the aqueous solution were mixed to prepare a washing solution.

  Nasal irrigation was performed on panelists (six persons) using the nasal irrigators of Examples 2 to 7, and a sensory evaluation was conducted on the spread of the irrigation solution into the nasal cavity and the refreshing feeling. The sensory evaluation was “some (5 points)”, “somewhat some (4 points)”, “somewhat yes (3 points)”, “neither way (2 points)”, “somewhat bad” The average score was calculated as a 6-point scale of "(1 point)" and "none (0 point)". Table 1 shows the results.

  As shown in Table 1, according to the nasal irrigator 1 of the present embodiment, good results were obtained with respect to the spread of the cleaning liquid into the nasal cavity. As shown in FIG. 18, it was confirmed that the provision of the diameter portion allows the cleaning liquid to be sprayed into the nasal cavity over a wide range. Also, as shown in Example 2 and Example 6, the injection port of the nozzle is formed in a reverse taper shape, and the enlarged diameter portion is provided, and a fragrance is added to the cleaning liquid to provide a refreshing feeling. It was confirmed that it could be quite excellent.

DESCRIPTION OF SYMBOLS 1 Nasal irrigator 2 Container 3 Lid 4 Nozzle 5 Hose 22A Front 22B Back 23C Left side 22D Right side 23 Male screw 24 Projection 32 Female screw 33 Groove 43 Injection port

Claims (4)

A nasal irrigator for washing the nasal cavity by pouring a washing solution from the nostrils,
A container capable of storing a cleaning liquid,
A lid detachably attached to the container,
A nozzle formed to protrude upward from the lid and having an injection port at an upper end,
A hose attached to a surface of the lid opposite to the nozzle so as to communicate with the nozzle,
The container is formed in a flat shape, has a front and back in the front-rear direction, a left side and a right side in the left and right direction,
The length in the left-right direction of the front and back of the container is longer than the length in the front-rear direction of the left side and the right side,
The front and the back of the container are formed so as to be flat along the vertical direction,
The nozzle is provided at a position shifted from the center position of the lid, and, when the lid is attached to the container, from the center position of the lid to the front side or the back side of the container in the front-rear direction. A nasal washer provided on the lid so as to be positioned.   The nasal irrigator according to claim 1, wherein the nozzle has a plurality of the injection ports.   The nasal irrigator according to claim 1, wherein the left side surface and the right side surface are formed to have a convex shape along a vertical direction. The container and the lid are fixed to each other by fastening a male screw and a female screw,
The screw according to any one of claims 1 to 3, wherein the male screw has a protrusion at an end of a screw thread, and the female screw has a groove in the screw thread into which the protrusion fits when fastening with the male screw. Nasal irrigator.