JP2007105365A - Injector for nasal cavity - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an injector for the nasal cavity, that is easily usable. <P>SOLUTION: In this injector for the nasal cavity, nozzle cylinders 20c on buttons 20 are inserted into nasal cavities, and a stem of the injector P is pushed in through a button, so that fluid in a container mounting the injector is discharged from the tips of the nozzle cylinders into the nasal cavities. On the button, two nozzle cylinders are provided in parallel to be respectively inserted into two nasal cavities, and simultaneously discharge fluid in the container. For use, the two nozzle cylinders on the button are respectively inserted into the two nasal cavities, and the stem of the injector is pushed in through the button. Fluid in the container mounting the injector is thus simultaneously discharged from the tips of the nozzle cylinders into the nasal cavity. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  In this invention, an injection device is attached to the mouth of a container, and a button is attached to the stem of the injection device. When in use, the nozzle tube of the button is placed in the nasal cavity and the stem is pushed in through the button. The present invention relates to a nasal cavity ejector that ejects liquid from the tip of a nozzle cylinder toward the nasal cavity.

  Conventionally, in this type of nasal injector, a pump type or aerosol type injection device is screwed to the mouth of a container, and a button having a handle is attached to the stem of the injection device. A nozzle cylinder is provided so as to protrude, and a nozzle having a nozzle is press-fitted to the tip of the nozzle cylinder.

  In use, the nozzle tube is first placed in one nasal cavity, the hand is placed on the handle and the stem is pushed in via the button, so that the liquid in the container is directed from the nozzle at the tip of the nozzle cylinder into the one nasal cavity. Then, the nozzle tube is replaced in the other nasal cavity, and the liquid in the container is discharged in the same way into the other nasal cavity, and the medicinal liquid is sprayed into the nasal cavity and applied to the nasal cavity, or the washing liquid is applied. The inside of the nasal cavity was washed by spraying.

JP 2000-335665 A JP 2004-418995 A JP 2004000844 A

  However, in such a nasal cavity injector, it is necessary to insert a nozzle tube and apply a medicinal solution to the nasal cavity one by one, or to clean the nasal cavity one by one, which is troublesome to use. It was.

  Accordingly, an object of the present invention is to provide a nasal cavity injector that is not troublesome to use and is not troublesome.

Therefore, in the present invention, by inserting a nozzle cylinder of a button into the nasal cavity and pushing the stem of the injection apparatus through the button, the liquid in the container to which the injection apparatus is attached is injected into the nasal cavity from the tip of the nozzle cylinder, for example, from the nozzle nozzle. In the nasal cavity ejected toward the
The button is provided with two nozzle cylinders that are inserted into the two nasal cavities and discharge the liquid in the container at the same time.

  When in use, the two nozzle cylinders of the button are inserted into the two nasal cavities, respectively, and the stem of the injection device is pushed through the buttons, so that the liquid in the container to which the injection device is attached passes through the nozzle tube from the tip of the nozzle cylinder. Simultaneously discharge toward

  The invention according to claim 2 is characterized in that, in such a nasal cavity injector, the liquid in the container is a medicinal liquid for nasal drop. In use, the medicinal solution for nasal drop is sprayed into the two nasal cavities at a time and applied to the nasal cavities.

  The invention described in claim 3 is characterized in that, in the nasal cavity injector as described above, the liquid in the container is a nasal rinse. In use, the nasal wash is sprayed into the two nasal cavities at a time to wash the nasal cavities.

  According to the fourth aspect of the present invention, in the nasal cavity injector as described above, the pump type injection device is attached to the mouth of the container, and the pump type injection device is operated by pushing the stem to suck up the liquid in the container. It discharges from the front-end | tip of a nozzle cylinder, It is characterized by the above-mentioned.

  According to the fifth aspect of the present invention, in the nasal cavity injector as described above, the aerosol-type injection device is attached to the mouth of the container, and the stem is pushed in, thereby opening the outlet valve of the aerosol-type injection device and liquid in the container. The liquid in the container is discharged from the tip of the nozzle cylinder with the pressure of the propellant stored together.

  Therefore, according to the present invention, in use, the two nozzle cylinders of the button are inserted into the two nasal cavities one by one and the stem of the injection device is pushed through the button, whereby the liquid in the container is discharged from the nozzle cylinder. Since the liquid is simultaneously discharged from the tip into the nasal cavity, it is possible to provide a nasal cavity ejector that is troublesome to use by ejecting liquid into the two nasal cavities at a time and discharging the liquid one by one.

  According to the second aspect of the present invention, since the liquid in the container is a medicinal liquid for nasal drop, when used, the medicinal liquid for nasal drop is sprayed into two nasal cavities at a time and applied to the nasal cavity. be able to.

  According to the third aspect of the present invention, since the liquid in the container is a nasal rinse, the nasal rinse can be sprayed into the two nasal cavities at a time to clean the nasal cavity. it can.

  According to the fourth aspect of the present invention, since the pump type injection device is attached to the mouth of the container, in use, the pump type injection device is operated by pushing in the stem, and the liquid in the container is sucked up and the tip of the nozzle cylinder The liquid can be discharged from the two nasal cavities and the liquid can be ejected at once.

  According to the fifth aspect of the present invention, the aerosol type injection device is attached to the mouth of the container. Therefore, by pushing the stem, the outlet valve of the aerosol type injection device is opened to store the liquid with the liquid in the container. With the pressure of the agent, the liquid in the container can be discharged from the tip of the nozzle cylinder, and the liquid can be ejected into two nasal cavities at a time.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 shows the appearance of a nasal cavity injector according to the present invention as seen from the side.

  In the illustrated nasal cavity injector, a pump-type injection device P is attached to the mouth of the container 10 using a screw cap 11. The container 10 is made into a bottle shape using a plastic material, and is provided with a male screw on the outer periphery of the mouth, and stores a liquid for nasal drop or nasal wash.

  In FIG. 2, the external appearance of the pump-type injection device P is shown as viewed obliquely from above. Moreover, in FIG. 3, the longitudinal cross-section of the pump type injection apparatus P is shown.

  Reference numeral 12 in the figure denotes a cylinder. The cylinder 12 is provided with two stepped portions in the middle, sequentially formed in a small diameter downward, provided with a flange 12a around the upper edge of the upper large-diameter portion, and penetrated in a radial direction immediately below the flange 12a. Then, the air suction hole 12b is opened, and the upper end portion of the pipe 13 is press-fitted into the small diameter portion of the lower portion from below.

  In such a cylinder 12, a coil spring 14 is inserted from above and placed in the middle diameter portion, and is placed on the stepped portion 12c between the small diameter portion. The step 12c has an opening 12d at the center. Then, a piston 16 to which an on-off valve 15 is further attached is placed in the cylinder 12 and placed on the coil spring 14 so that the lower part is liquid-tightly inserted into the medium diameter part, and is provided in a removable manner.

  In the piston 16, a suction passage 16a is formed at the center of the lower portion, and a suction port 16b is opened through the suction passage 16a in the radial direction. Then, the above-described opening / closing valve 15 is provided around the piston 16 so as to open and close the suction port 16b by bending due to elasticity. The upper part of the piston 16 is inserted into the ejection passage 17a of the tubular stem 17 so as to be freely inserted and removed, and the tip shoulder portion 16c is applied to the inner diameter step portion 17b in the ejection passage 17a.

  The stem 17 is provided so that the lower portion is liquid-tightly inserted into the large-diameter portion of the cylinder 12 and can be taken in and out. Thereby, the pressure chamber A is partitioned in the cylinder 12. Then, the upper portion of the stem 17 is inserted into the center hole of the top portion 11a and the above-described screw cap 11 is attached. The screw cap 11 is put on the flange 12a with the seal 18 interposed therebetween, and is hung on the cylinder 12, and The tip protrudes upward. At this time, the stem 17 is pushed down together with the piston 16 through the seal 18 to slightly compress the coil spring 14, and the tip shoulder portion 16 c of the piston 16 is reliably pressed against the inner diameter step portion 17 b of the stem 17. The screw cap 11 has a central hole in the top part 11a, and has an internal thread 11b on the inner periphery, and a cylindrical part 11c is erected upward from the top part 11a.

  A cap-like push 21 to which the button 20 is fixed is detachably fitted to the tip of the stem 17. The push 21 has a center hole 21a at the center of the top portion, a small cylinder portion 21b to the stem 17 downward from around the center hole 21a, and a cylindrical portion 11c of the screw cap 11 downward from the outer periphery of the top portion. Has a large cylindrical portion 21c. Then, the downward cylinder portion 20a of the button 20 is fitted around the large cylinder portion 21c and fixed by fitting, welding, or the like. Thereby, a disk-shaped space 22 is formed between the top of the push 21 and the button 20.

  The button 20 is provided with the above-described downward cylindrical portion 20a downward from the oval plate portion 20b, and two nozzle cylinders 20c are arranged side by side upward. The two nozzle cylinder portions 20c are slightly tapered so that they can be easily inserted into the nasal cavity, house the columnar center post tip 23 inside, and fit the small cap-shaped nozzle 24 at the entrance. In the nozzle 24, a nozzle hole 24a is formed at the center of the top, and a spin groove 24b is formed on the inner surface of the top. The plate portion 20b is formed with communication holes 20d that allow the inside of the two nozzle cylinder portions 20c and the disk-shaped space 22 to communicate with each other.

  Then, the packing 25 is inserted into the screw cap 11 and applied to the flange 12 a of the cylinder 12, the pipe 13 is inserted from the mouth of the container 10 and the cylinder 12 is also inserted, and the tip of the pipe 13 faces the bottom of the container 10. Extend, cover the mouth of the container 10 with the screw cap 11, screw the inner peripheral female screw 11 b to the male screw of the mouth, compress the packing 25, and attach the pump type injection device P to the mouth of the container 10. It becomes.

  Now, when using this nasal cavity injector, the container 10 is held, fingers are put on both ends of the plate part 20b, the two nozzle cylinder parts 20c are inserted into the nasal cavity, and the button 20 is pushed down. Then, the stem 17 is pushed into the cylinder 12 together with the piston 16 through the push 21 against the urging force of the coil spring 14, and the pressure in the pressure chamber A is increased.

  When the pressure in the pressure chamber A becomes a certain level or higher, the piston 16 is pushed by that pressure, the tip shoulder portion 16c is separated from the inner diameter step portion 17b of the stem 17, and the liquid in the pressure chamber A is separated from the stem 17 and the piston 16. Between the jet passage 17a of the stem 17 and the space 22 through the center hole 21a of the push 21, and is distributed and guided into the two nozzle cylinders 20c through the two communication holes 20d, respectively, and the nozzle cylinder 20c and the center post tip 23, passes through the spin groove 24b, and is discharged from the nozzle hole 24a of the nozzle 24 into the nasal cavity as a mist. The medicinal liquid is sprayed into the nasal cavity and applied to the nasal cavity, or the cleaning liquid is sprayed. To clean the nasal cavity.

  When the pressure in the pressure chamber A decreases, the piston 16 is returned by the urging force of the coil spring 14, and the tip shoulder 16c is pressed against the inner diameter step portion 17b of the stem 17 to stop the discharge from the nozzle 24a. When the finger hung on the plate portion 20 b is removed, the stem 17 is pushed back together with the piston 16 by the biasing force of the coil spring 14, and the button 20 is pushed up via the push 21.

  Then, the inside of the pressure chamber A becomes negative pressure and bends against elasticity to open the on-off valve 15, and the liquid in the container 10 passes through the pipe 13 from the opening 12 d of the cylinder 12 into the inside diameter portion of the cylinder 12. The air passes through the suction passage 16a and is sucked into the pressure chamber A from the suction port 16b. Thereby, when the button 20 is pushed down again, the liquid in the pressure chamber A can be discharged again from the nozzle 24a into the nasal cavity.

  As described above, according to the illustrated nasal cavity injector, the nozzle cylinder 20c of the button 20 is inserted into the nasal cavity, and the stem 17 of the injection apparatus P is pushed through the button 20, whereby the liquid in the container 10 to which the injection apparatus P is attached. In the nasal cavity injector that discharges from the tip of the nozzle cylinder 20c into the nasal cavity, the button 20 is provided with two nozzle cylinders 20c that are inserted into the two nasal cavities and discharge the liquid in the container 10 side by side.

  In use, the two nozzle cylinders 20c of the button 20 are inserted into the two nasal cavities, respectively, and the stem 17 of the injection device P is pushed through the button 20, whereby the liquid in the container 10 to which the injection device P is attached is discharged. It discharges simultaneously toward the nasal cavity from the tip of the nozzle cylinder 20c. Therefore, it is possible to provide a nasal cavity ejector that is troublesome to use by ejecting liquid into the two nasal cavities at once and eliminating the trouble of ejecting the liquid one by one.

  When the liquid in the container 10 is a nasal medicinal liquid, the nasal medicinal liquid can be sprayed into two nasal cavities at a time and applied to the nasal cavity. When the liquid in the container 10 is a nasal wash, the nasal wash can be sprayed into the two nasal cavities at a time to wash the nasal cavity.

  In the above-described example, the pump type injection device P is attached to the mouth of the container 10 and the pump type injection device P is operated by pushing the stem 17 to suck up the liquid in the container 10 and discharge it from the tip of the nozzle cylinder 20c. A case where the present invention is applied to a nasal cavity injector has been described. However, this invention attaches a known aerosol injection device to the mouth of the container and pushes the stem so that the outlet valve of the aerosol injection device is opened and the pressure of the propellant such as CFC stored in the container together with the liquid. The present invention can be similarly applied to a non-pump type nasal cavity injector that discharges the liquid in the container from the tip of the nozzle cylinder.

It is the external view which looked at the nasal cavity injector which concerns on this invention from the side. In the nasal cavity injector, it is a perspective view of a pump type injection device attached to a container. It is a longitudinal cross-sectional view of the pump type injection device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Container 11 Screw cap 12 Cylinder 14 Coil spring 15 On-off valve 16 Piston 17 Stem 20 Button 20c Nozzle cylinder 21 Push 22 Disk-shaped space 23 Center post chip | tip 24 Nozzle 24a Injection hole P Pump type ejection apparatus

Claims (5)

In a nasal cavity injector for inserting a nozzle cylinder of a button into the nasal cavity and discharging the liquid in the container from the tip of the nozzle cylinder into the nasal cavity by pushing the stem through the button,
The nasal cavity injector, wherein the button is provided with two nozzle cylinders that are inserted into the two nasal cavities and discharge the liquid in the container at the same time.   The nasal cavity injector according to claim 1, wherein the liquid in the container is a medicinal liquid for nasal drop.   The nasal cavity injector according to claim 1, wherein the liquid in the container is a nasal rinse.   The pump-type injection device is attached to the mouth portion of the container, and the liquid in the container is sucked up by the pump-type injection device by pushing the stem and discharged from the tip of the nozzle cylinder. 4. The nasal cavity injector according to 3.   By attaching an aerosol type injection device to the mouth of the container and pushing the stem, the outlet valve of the aerosol type injection device is opened, and the liquid in the container is filled with the pressure of the propellant stored together with the liquid in the container. The nasal cavity injector according to any one of claims 1 to 3, wherein the nasal cavity ejector is discharged from the tip of the nozzle tube.

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