JP5047589B2 - Nasal medication dispenser - Google Patents

Description

The present invention relates to a nasal spray dispenser equipped with a nozzle .

As such a conventional nasal medication dispenser , there is a nasal medication dispenser in which a pump is arranged in the container body, and the medicine in the container body is sprayed from the nozzle tip by repeatedly pushing down and returning the nozzle (for example, , See Patent Document 1).
Japanese Patent Laid-Open No. 2004-844

As another conventional nasal medication dispenser , a nasal nose is formed by forming a container body from an elastic resin material, and repeatedly crushing and returning the body to spray the medicine in the container body from the tip of the nozzle. There is a prescription device (see, for example, Patent Document 2).
JP 2004-290868 A

However, such conventional nasal medication dispensers may irritate the nose because the pressurized medication is sprayed directly into the nostrils. Since this leads to user discomfort, there is room for improvement.

The problem to be solved by the present invention is to propose a nasal medication dispenser that can reduce the burden on the cavity when a nozzle is inserted into the cavity such as the nostril and the liquid content is poured out. It is.

Nasal administering device in terms of the present invention has a nozzle plug into the cavity of the nostrils or the like, a nose drops administering device point of pouring the contents of the liquid filled in the container body to the inner wall of the cavity The nozzle has a shaft portion and an exterior portion that surrounds the shaft portion and forms a cylindrical passage between the shaft portion and an annular portion that communicates with the passage at the tip of the exterior portion. A pouring outlet is provided, and the foamed contents formed through the mesh are poured out from the pouring outlet.

  In this case, the shaft portion has, on the outer side thereof, a protrusion that protrudes outward from the shaft portion and contacts the exterior portion, and the exterior portion communicates with the protrusion at the tip thereof through the passage. It is possible to provide a plurality of outlets partitioned by.

  Moreover, it is preferable that the said shaft part which concerns on this invention is equipped with the expansion front-end | tip part which protrudes from the front-end | tip of the said exterior part, and guides the foam-like content poured out from the said spout outlet diagonally ahead.

  According to the present invention, since the content to be poured out by inserting the nozzle into the cavity such as the nostril is a foam containing air, the cavity when the nozzle is inserted into the cavity and the content is poured out. The burden on the inner wall of the section can be reduced.

In addition, in the present invention, the nozzle for pouring the liquid contents into a foam shape has a shaft portion and an exterior portion that surrounds the shaft portion and forms a cylindrical passage between the shaft portion. and, the tip of the outer part, by Rukoto to form a spout annular communicating with said passage, when pouring the contents by inserting the nozzle into the cavity of the nostrils or the like, the burden on the cavity While mitigating, the contents can be poured uniformly over the entire inner wall of the cavity.

  Further, in this case, the shaft portion has a protrusion on the outer side thereof that protrudes outward from the shaft portion and contacts the exterior portion, and the protrusion extends through the passage at a tip of the exterior portion. If a plurality of spouts partitioned by the nozzle are formed, the entire inner wall of the cavity is reduced while reducing the burden on the cavity when the contents are poured out by inserting the nozzle into the cavity such as the nostril. In order to uniformly dispense the contents, the amount of the contents administered to the inner wall of the cavity can be locally adjusted.

  Furthermore, in the present invention, if the shaft portion includes an enlarged tip portion that projects from the tip of the exterior portion and guides the foam-like contents poured out from the spout port obliquely forward, a cavity such as a nostril When the content is poured out by inserting the nozzle into the cavity, while reducing the burden on the cavity, the content is uniformly poured into the entire inner wall of the cavity. The contents can be poured out intensively.

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

  FIG. 1 is a partial cross-sectional view showing a nasal drop medication device 100 according to the first embodiment of the present invention from the side.

  Reference numeral 110 denotes a container body having a mouth portion 111 and filled with a liquid nasal spray as a content.

  Reference numeral 120 denotes a foam pump that is suspended and held in the mouth 111 of the container body 110.

  Reference numeral 130 denotes a cap that has a through-hole 130a through which a later-described stem 129 of the foam pump 120 passes and is fixed to the mouth 111 of the container body 110.

  Here, FIGS. 2 (a) and 2 (b) are an enlarged view of a main part of FIG. 1 and a perspective view of a main part showing a nozzle 140 described later from the tip thereof.

  Reference numeral 140 denotes a stem 129 that penetrates the through hole 130a of the cap 130, and the container body 110 is repeatedly pushed in the d2 direction shown in FIG. 2A and returned to the d1 direction shown in FIG. 2A. This is a tapered nozzle that pours out a foam-like drug pumped through the stem 129. In FIG. 1, an overcap 150 is detachably attached to the cap 130.

  The nozzle 140 includes a cone-shaped shaft portion 141 whose tip is sealed, and an exterior portion 142 that surrounds the shaft portion 141 and forms a cylindrical passage 140p between the shaft portion 141. The exterior portion 142 is integrally provided with two finger-hanging pieces 143 projecting outward from the exterior portion 142 on the outer side, and at the tip 142e thereof, as shown in FIG. Provided with a spout 140a. The finger-hanging piece 143 has a surface whose upper surface is curved downward in consideration of operability, and the finger-hanging piece is obtained by changing the above-described two finger-hanging pieces 143 into a shape that protrudes outward in an annular shape. It can also be configured.

  Further, as shown in FIG. 1, one or more openings 141s leading to the stem 129 are formed below the shaft portion 141, and an outward projecting portion 141f is formed at the lower end portion of the shaft portion 141. A plurality of protrusions 142r projecting inward from the exterior part 142 are integrally formed inside the exterior part 142 facing the opening 141s, and an outward projecting part 141f is formed at the lower end of the protrusion 142r. A shaft portion 141 is housed in the exterior portion 142 so as to abut.

  Here, the foam pump 120 according to the present embodiment will be described in detail. The foam pump 120 has a cylinder 121 that is suspended and held at the mouth portion 111 via the packing P. The cylinder 121 is integrally provided with a large-diameter portion 121a for sucking, pressurizing, and pumping air and a small-diameter portion 121b for sucking, pressurizing, and pumping medicine in order from the mouth 111 side. A cylindrical portion 121h is erected above the large-diameter portion 121a via an outward flange 121f, and a rib 121r is formed on the outer wall of the cylindrical portion 121h. Relative rotation between the cylinder 121 and the cap 130 is prevented by engaging with a U-shaped notch 130c formed at the lower end of the cylindrical portion 130h.

  The cylinder 121 has a tapered tip portion 120p at its small diameter portion 121b, and an inlet 120a leading to the inside of the small diameter portion 121b is opened at the tip of the tip portion 120p. The cylinder 121 further includes a notch S connected to the suction port 120a and leading to the inside of the small diameter portion 121b at the tip portion 120p.

  A poppet (plunger) 122 is further disposed inside the small diameter portion 121b of the cylinder 121. The poppet 122 has a lower end 122a that can be seated on the back surface of the suction port 120a, and elastically supports a medicine piston 124 via a return spring 123.

  The drug piston 124 is integrally provided with a cylinder-side seal end 124a that is slidably held on the inner surface of the small-diameter portion 121b. On the inside thereof, the drug piston 124 projects inward from the drug piston 124, and the upper end of the poppet 122 A poppet side seal end portion 124b is slidably held on the outer surface of 122b. Thus, when the lower end portion 122a of the poppet 122 is seated on the back surface of the suction port 120a, a medicine filling space Rc is formed in the small diameter portion 121b.

  Further, a hollow piston guide 125 is fixed to the upper end portion of the medicine piston 124. The piston guide 125 has a ball 126 as a check valve mounted on the inner side thereof, and an air piston 127 on the outer surface thereof.

  The air piston 127 is integrally provided with a seal end portion 127a that is slidably held on the outer surface of the piston guide 125 and a seal end portion 127b that is slidably held on the inner surface of the large diameter portion 121a. Thus, an air filling space Ra is formed in the large diameter portion 121a.

  The air piston 127 is further formed with a through hole 127c for allowing air to circulate. The through hole 127c is provided with an air piston valve 128 serving as a check valve that allows only the inflow of air into the filling space Ra. Is provided.

  Further, the air piston 127 has a seal end portion 127d that is slidably held on an inner surface of a stem (jet ring) 129 attached to the piston guide 125, and is formed between the outer surface of the piston guide 125. The formed gap is communicated with the upper position of the ball 126 through a gap formed between the piston guide 125 and the stem 129.

  The stem 129 houses two mesh rings Rm on which meshes are stretched. A nozzle 140 is attached to the outer surface of the stem 129. As a result, the stem 129 passes through the cylindrical passage 140p formed between the opening 141s formed in the shaft portion 141 and the exterior portion 142 to the annular spout 140a provided at the tip 142e of the exterior portion 142. It leads.

  Here, the operation of this embodiment will be described.

  First, when the medicine is administered to the nostril, the nozzle 140 is inserted into the nostril after the overcap 150 is removed.

  Next, when a finger is hooked on the finger hanging piece 143 and the bottom 114 of the container main body 110 is pushed, the container main body 110 is pushed in the direction of the arrow d2. By this pushing, the poppet 122 of the foam pump 120 is pushed into the cylinder 121 together with the stem 129, the air piston 127, the piston guide 125, and the medicine piston 124, and is seated along the poppet 122 when seated on the back surface of the suction port 120a. Then, the medicine piston 124 is pushed into the small diameter portion 121b. Accordingly, the poppet side seal end portion 124b of the medicine piston 124 and the upper end portion 122b of the poppet 122 are separated from each other, and the medicine pressurized in the filling space Rc is pumped toward the ball 126 and lifts the ball 126. The stem 129 passes through the spout 140a of the nozzle 140 to the outside.

  At the same time, the internal pressure of the filling space Ra also increases due to the pushing of the air piston 127, so that the lower end of the air piston 127 releases the seal with the piston guide 125 and leads the filling space Ra to the gap between the air piston 127 and the piston guide 125. Therefore, the air pressurized in the filling space Ra also passes through the upper part of the ball 126 to the outside through the stem 129 and the spout 140a of the nozzle 140.

  Next, when the finger is released from the finger hanging piece 143, the medicine piston 124 moves to return to the original position by the elastic force of the return spring 123, and the poppet side seal end portion 124b of the medicine piston 124 and the poppet 122 are moved. When the upper end portion 122b is engaged again, the poppet 122 is pulled up together with the medicine piston 124 and the like to return to the original position. Thereby, the medicine filled in the container main body 110 is introduced into the filling space Rc from the suction port 120a with the negative pressure generated in the filling space Rc.

  At the same time, the air piston 127 moves to return to the original position together with the piston guide 125, and the air piston valve 128 opens the through hole 127c and introduces air into the filling space Ra due to the negative pressure generated by the expansion of the filling space Ra. At the same time, the air piston 127 and the piston guide 125 come into contact again to close the gap.

  After that, when the finger 143 is further hooked and pushed, the poppet 122 is seated on the back surface of the suction port 120a, and then the drug piston 124 is pushed along the poppet 122, and the drug piston 124 and the poppet 122 are moved. The drug that is separated and pressurized in the filling space Rc lifts the ball 126 and is pumped toward the stem 129. At the same time, as the air piston 127 is pushed in, the internal pressure of the filling space Ra also rises again, and the air piston 127 is displaced from the piston guide 125 and is pumped to the stem 129 through the upper part of the ball 126.

  Thereby, after the medicine and air are mixed at the upper part of the ball 126, a foam-like medicine is formed through each of the three mesh rings Rm in the stem 129, and the foam-like medicine is formed from the spout 140a of the nozzle 140. Be poured out.

  Therefore, according to this embodiment, since the mechanism for pumping the medicine to the nozzle 140 is the foam pump 120, the medicine administered from the nozzle 140 to the nostril becomes a foam containing air. It is possible to reduce the burden on the inner wall of the nostril when the drug is inserted and to suppress the discomfort given to the user to the maximum.

  By the way, if the nozzle 140 is a simple hollow nozzle, it is not always possible to administer the drug uniformly to the entire inner wall of the nostril.

Therefore, as in this embodiment, the nozzle 140 has a shaft portion 141 and an exterior portion 142 that surrounds the shaft portion 141 and forms a cylindrical passage 140p between the shaft portion 141, the tip 142e of the outer portion 142, the Rukoto to form a spout 140a of annular leading to passageway 140p, while maximally suppressed discomfort to the user in administering the agent to a nostril, the entire inner wall of the nostrils The drug can be administered evenly.

  Further, as in the present embodiment, if the container main body 110 includes the bottom 114 having a minimum diameter near the cylinder tip portion 120s of the foam pump 120, the residual content can be reduced, and further the container The main body can be reduced in size and weight.

  Further, as in the present embodiment, the cylinder 121 has a tapered tip portion 120p, and if the edge portion of the tip portion 120p is provided with a notch S communicating with the cylinder 121, the bottom portion 114 of the container main body 110 is provided. Even if the dimension of the container body 110 in the direction of the axis O (height dimension) is shortened while minimizing the diameter of the container body 110, it is possible to prevent the outlet 120a at the end of the cylinder from being closed on the inner surface of the bottom 114 of the container body 110. The content of the medicine can be jetted, and the residual drug after use can be minimized.

  By the way, in the nozzle 140 according to the above embodiment, an annular spout 140a leading to the cylindrical passage 140p is formed at the tip 142e of the exterior portion 142 so as to uniformly administer the drug to the entire inner wall of the nostril. Various shapes can be employed for the outlet 140a.

  FIG. 3 (a) is a partial cross-sectional view showing the nasal drop medication device 200 according to the second embodiment of the present invention from the side, and FIG. 3 (b) shows the tip of the nozzle 140 according to the same form. It is the principal part top view to show, and the partial cross section which shows the same form from the side. In the present embodiment, the same parts as those in the other embodiments are denoted by the same reference numerals and the description thereof is omitted.

  In the nozzle 140 according to the present embodiment, the shaft portion 141 has a plurality of protrusions 141p that protrude outward from the shaft portion 141 and come into contact with the exterior portion 142 on the outer side, and at the tip 142e of the exterior portion 142, A plurality of spouts 140a defined by protrusions 141p are formed through a tubular passage 140p.

  In this case, the amount of the drug to be administered to the inner wall of the nostril can be reduced when the drug is uniformly applied to the entire inner wall of the nostril while suppressing the discomfort given to the user when the drug is administered to the nostril. It can be adjusted locally by changing the height and interval of the protrusions 141p.

  FIG. 4 (a) is a partial cross-sectional view showing a nasal medication dispenser 300 according to the third embodiment of the present invention from the side, and FIG. 4 (b) shows the tip of a nozzle 140 that can be used in the same form. It is a partial cross section figure which shows a part from a side surface. In the present embodiment, the same parts as those in the other embodiments are denoted by the same reference numerals and the description thereof is omitted.

  In the nozzle 140 according to this embodiment, the shaft portion 141 protrudes from the tip 142e of the exterior portion 142, and an enlarged tip portion 141e that guides the foam-like medicine poured out from the spout 140a obliquely forward in the arrow Cf direction is integrated. Prepare.

  In this case, when the drug is uniformly applied to the entire inner wall of the nostril while suppressing the discomfort given to the user at the time of administering the drug to the nostril, the shape of the enlarged tip portion 141e, from the tip 142e By changing the protruding amount, the shape of the base portion 141b of the enlarged tip portion 141e, and the like, the drug can be administered mainly to the inner wall of the nostril near the tip portion 142e of the outer portion 142 of the nozzle 140.

  Note that the enlarged tip portion 141e can be separated from the shaft portion 141. In this case, it is not necessary to forcibly push the enlarged distal end portion 141e from the portion opened at the distal end 142e of the exterior portion 142 for assembly.

  The above is a preferred embodiment of the present invention, but various modifications can be made within the scope of the claims. For example, the configuration of the foam pump 120 is not limited to the above-described form, and may be operated by repeatedly pushing and returning the nozzle, for example. That is, the foam pump according to the present invention is not limited as long as the liquid content can be foamed and pumped by repeated approach and separation between the nozzle and the container body.

  Further, the foam mechanism for converting the liquid content into a foam-like content and pumping it to the nozzle 140 is not limited to the foam pump, and for example, the container body is made of an elastic resin or the like to form a squeeze container. You may produce the same effect.

  Furthermore, various configurations employed in the above-described embodiments can be appropriately combined and replaced according to the purpose and application.

  The dispenser of the present invention is not limited to a nasal medication dispenser, and can be used to administer various medicines as long as it aims to dispense liquid contents onto the inner wall of the cavity. Furthermore, various liquids can be adopted as long as the content to be poured out is liquid.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional view showing a nasal drop administration device according to a first embodiment of the present invention from the side. (a), (b) is the principal part enlarged view of FIG. 1, respectively, and the principal part perspective view which shows the nozzle which concerns on the same form from the front-end | tip. (a) is a partial cross-sectional view showing the nasal drop medication device according to the second embodiment of the present invention from the side, (b) is a top view of the main part showing the tip portion of the nozzle according to the same form; It is a partial sectional view showing the form from the side. (a) is a partial cross-sectional view showing a nasal drop administration device according to a third embodiment of the present invention from the side, and (b) is a side view showing a tip portion of a nozzle that can be used in the same form. FIG.

Explanation of symbols

110 Container body
111 mouth
120 foam pump
130 cap
133 Through hole
140 nozzles
140a nozzle spout
141 Shaft part
141e Expanded tip
141p
142 Exterior part
142e Exterior part tip
143 finger

Claims (3)

A nasal drop medication dispenser that has a nozzle inserted into a cavity such as a nostril and dispenses the liquid content filled in the container body onto the inner wall of the cavity,
The nozzle includes a shaft portion and an exterior portion that surrounds the shaft portion and forms a cylindrical passage between the shaft portion, and an annular injection pipe that communicates with the passage at the tip of the exterior portion. With an exit,
A nasal drop medication dispenser for dispensing foamy contents formed through a mesh from the spout. The shaft portion has, on its outer side, a protrusion that protrudes outward from the shaft portion and contacts the exterior portion,
2. The nasal drop medication dispenser according to claim 1, comprising a plurality of spouts, which are defined by the protrusions through the passage, at a distal end of the exterior portion. 4. The nasal drop medication device according to claim 2, wherein the shaft portion includes an enlarged distal end portion that protrudes from the distal end of the exterior portion and guides the foam-like contents poured out from the spout port obliquely forward.

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