Chemical liquid applicator and chemical liquid application container equipped with same

Abstract

To provide a medical solution applicator that can prevent a brush from being damaged when the medical solution applicator is assembled to a medical solution container body after medical solution is filled in the medical solution container body.SOLUTION: A medical solution applicator 13 includes: a brush 16; an inside plug 14 to which the brush 16 is fitted; and a cap 18 including a fitting hole 40 into which the brush 16 and a tip 27 of the inside plug 14 are fitted. The inside plug 14 is formed with a holding part 32 for holding the cap 18 while the brush 16 and the tip 27 of the inside plug 14 are fitted into the fitting hole 40, while the cap 18 is formed with a part to be held 42 that is held by the holding part 32.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a liquid applicator for a liquid applicator container used for applying a liquid medicine to the skin, for example, and to a liquid applicator container including the same. [Background technology]

[0002] Chemical solution application containers have been developed that include a chemical solution container body for storing the chemical solution, and a chemical solution applicator including a brush, an inner stopper, and a cap for applying the chemical solution to the skin or the like (for example, Patent Document 1).

[0003] Generally, such a liquid applicator container is designed so that a cap engages with the outside of the opening of the liquid container body. For this reason, the manufacturer of the liquid applicator container separates the liquid container body from the liquid applicator, and delivers the liquid applicator container in a state in which the cap is separated from the liquid applicator to the liquid manufacturer. The liquid manufacturer fills the liquid container body with the liquid, and then assembles the brush (and inner stopper) and cap in that order. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-91449 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the above-mentioned procedure, there were problems where the cap would accidentally interfere with the tip of the brush when the chemical liquid manufacturer was assembling the cap, or the exposed brush would be hit against something, causing damage to the brush.

[0006] The present invention has been made in consideration of the above-mentioned problems, and its object is to provide a chemical liquid applicator and a chemical liquid applicator container equipped with the same that can avoid damage to the brush when assembling the chemical liquid applicator to the chemical liquid container body after the chemical liquid has been filled into the chemical liquid container body. [Means for solving the problem]

[0007] According to one aspect of the present invention, With a brush, The brush is attached With brush insertion hole A stopper and and a cap having an insertion hole into which the tip of the brush or the inside plug is inserted, The inner plug The outer surface of the inner plug on the opposite side to the surface that constitutes the brush insertion hole. a holding portion is formed to hold the cap in a state where the tip portion of the brush or the inside plug is inserted into the insertion hole, The cap Inside The holding portion is formed with a held portion that is held by the holding portion. A medical applicator is provided.

[0008] Preferably, The retaining portion is a male screw. Ji The held portion is a female screw that engages with the holding portion. Ji be.

[0009] Preferably, A cap contact surface that contacts the inside of the cap is formed on the outside of the inside plug, The cap abutment surface is a tapered surface that slopes outward from the center of the inside plug toward the opposite side from the tip side of the inside plug to which the brush is attached.

[0010] Preferably, An inner plug abutment surface that abuts against an outer side of the inner plug is formed on the inner side of the cap, The inner plug abutment surface is a tapered surface that slopes from the outside of the cap toward the center from the opening side of the insertion hole toward the back side of the insertion hole.

[0013] Preferably, a liquid medicine container body insertion port into which a neck portion of a liquid medicine container body is inserted is formed at an end of the inner plug opposite to the end where the brush is attached; The outer diameter of the end portion constituting the drug solution container body insertion port is equal to or larger than the maximum outer diameter of the cap.

[0014] According to another aspect of the present invention, There is provided a medical solution applicator container including the above-mentioned medical solution applicator and a medical solution container body in which medical solution is stored. Effect of the Invention

[0015] In the chemical liquid applicator of the chemical liquid application container of the present invention, a holding portion that holds the cap when the tip of the brush or inner stopper is inserted into the insertion hole of the cap is formed on the outside of the inner stopper that constitutes the chemical liquid applicator, and a held portion that is held by the holding portion is formed on the inside of the cap.

[0016] As a result, when the chemical liquid container body and the chemical liquid applicator are separated and delivered to the chemical liquid manufacturer by the manufacturer of the chemical liquid application container, the tip of the brush or inner stopper can be inserted into the insertion hole of the cap, and the holding portion of the inner stopper and the held portion of the cap can be combined for transport.

[0017] Therefore, it is possible to avoid problems that could occur when a chemical liquid manufacturer assembles a cap onto an inner plug, such as the cap accidentally interfering with the tip of the brush or the exposed brush being hit against something and damaging the brush. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a cross-sectional view showing a chemical solution applying container 10 according to an embodiment. [Diagram 2] FIG. 1 is an exploded cross-sectional view showing a chemical solution applying container 10 according to an embodiment. [Diagram 3] 1 is a cross-sectional view showing a chemical solution applying container 10 according to a first modified example. [Figure 4]1 is an exploded cross-sectional view showing a chemical solution applying container 10 according to a first modified example. [Diagram 5] FIG. 11 is a cross-sectional view showing the chemical solution applying container 10 according to a third modified example. [Figure 6] FIG. 11 is an exploded cross-sectional view showing the chemical solution applying container 10 according to Modification 3. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] (Configuration of chemical solution application container 10) Hereinafter, an example of the configuration of a chemical solution applying container 10 to which the present invention is applied will be described with reference to the drawings.

[0020] As shown in FIGS. 1 and 2, the chemical solution applicator container 10 is generally composed of a chemical solution container body 12 and a chemical solution applicator 13.

[0021] The liquid medicine container body 12 is a substantially cylindrical, bottomed tubular member in which the liquid medicine L is stored, and a neck portion 20 formed at its tip is adapted to be inserted into a liquid medicine container body insertion port 30 formed at the end of the inside plug 14. An opening 22 through which the liquid medicine L is injected is formed at the upper end of the neck portion 20 of the liquid medicine container body 12, and a male thread 24 is formed on the outer periphery of the neck portion 20 to screw into a female thread 36 formed on the inner surface of the liquid medicine container body insertion port 30 (described later) of the inside plug 14.

[0022] Although the liquid medicine container body 12 according to this embodiment is formed in a substantially cylindrical shape as described above, the shape of the liquid medicine container body 12 is not limited thereto, and may be, for example, a substantially prismatic column shape or a more complicated shape. The material of the liquid medicine container body 12 is also not particularly limited, and may be, for example, at least one selected from the group consisting of polypropylene (PP), polyethylene (PE), polyester (PET), and elastomer, but polyethylene (PE) or elastomer is optimal when the liquid medicine is dripped from the brush 16 described later, and polyethylene (PE) or polyester (PET) is preferable when it is desired to let the user know the remaining amount of the liquid medicine.

[0023] The chemical solution applicator 13 is composed of an inner plug 14, a brush 16, and a cap 18. Of course, the chemical solution applicator 13 may be composed of other members in addition to these.

[0024] The inside plug 14 is a generally cylindrical tubular member and has an inside plug body 26, a brush insertion hole 28 formed in the center in the longitudinal direction at the tip end 27 of the inside plug body 26, and a liquid medicine container body insertion port 30 formed at the end (rear end 38) opposite the brush insertion hole 28. The brush insertion hole 28 and the liquid medicine container body insertion port 30 communicate with each other inside the inside of the inside plug body 26.

[0025] Further, an inner plug male thread 32 is formed on the outer periphery of the tip portion 27 of the inner plug body 26. In this embodiment, this inner plug male thread 32 corresponds to the “holding portion” that holds the cap 18.

[0026] Furthermore, a cap abutment surface 34 that abuts against the inside of the cap 18 is formed at the tip position of the tip portion 27, which is located near the inside plug male thread 32. This cap abutment surface 34 is a tapered surface that slopes outward from the center of the inside plug 14, from the tip side of the inside plug 14 to which the brush 16 is attached, toward the opposite side (rear end side).

[0027] In addition, the liquid medicine container body insertion port 30 in the inner stopper 14 is designed so that the neck 20 of the liquid medicine container body 12 is inserted therein, as described above, and the inner surface of the liquid medicine container body insertion port 30 is formed with a female thread 36 that screws into the male thread 24 formed on the outer periphery of the neck 20 of the liquid medicine container body 12.

[0028] As described above, the inside plug 14 according to this embodiment is formed in a substantially cylindrical shape, but the outer shape of the rear end 38 of the inside plug 14 constituting the liquid medicine container body insertion port 30 is not limited to this, and may be, for example, a substantially rectangular column shape or a more complex shape. The material of the inside plug 14 is also not particularly limited, and may be, for example, at least one selected from the group consisting of polypropylene (PP), polyethylene (PE), polyester (PET), and polybutylene terephthalate (PBT), as long as it has a rigidity that allows the brush 16 to be easily inserted into the brush insertion hole 28 and allows easy assembly to the liquid medicine container body 12.

[0029] Brush 16 is formed by pressing a bundle of synthetic fibers having a specific gravity and strength into a generally cylindrical shape at a specific density. The chemical solution L permeates from the lower end of brush 16 in the figure and permeates to the upper end of brush 16 in the figure by capillary action, so that the chemical solution L can be applied to the desired location by pressing the upper end against the skin, etc.

[0030] The outer shape of the brush 16 according to this embodiment is formed in a substantially cylindrical shape as described above, but the outer shape of the brush 16 is not limited to this, and may be, for example, a substantially prismatic shape or a more complicated shape. The material of the brush 16 is also not particularly limited, and may be, for example, at least one selected from the group consisting of polyester fiber (PET, PBT), polypropylene fiber (PP), polyamide fiber (PA), acrylic fiber (PMMA), and polyacetal fiber (POM).

[0031] The cap 18 is a component that prevents the upper end of the brush 16 from undesirably hitting objects, etc., which could result in damage to the brush 16 itself or the chemical liquid L adhering to those objects, or prevents the chemical liquid L from naturally evaporating from the upper end of the brush 16, etc., when the chemical liquid application container 10 is stored and not in use.

[0032] The cap 18 according to this embodiment is formed in a generally conical shape, and has an insertion hole 40 formed on the inside, into which the brush 16 or the tip of the inside plug 14 is inserted. A cap female thread 42 is formed on the inner surface of the insertion hole 40 on the inside of the cap 18. In this embodiment, the cap female thread 42 corresponds to the "held portion" that is held by the inside plug 14.

[0033] Furthermore, an inner plug abutment surface 44 that abuts against the cap abutment surface 34 of the inner plug 14 is formed on the inside of the cap 18. This inner plug abutment surface 44 is a tapered surface that slopes from the outside of the cap 18 toward the center from the opening side of the insertion hole 40 (the side where the brush 16 and the tip portion 27 of the inner plug 14 are inserted) toward the back side of the insertion hole 40.

[0034] Although the outer shape of cap 18 according to this embodiment is formed into a substantially conical shape as described above, the outer shape of cap 18 is not limited thereto and may be, for example, a substantially prismatic or cylindrical shape, or may be a more complicated shape. In addition, it is preferable to set the maximum outer diameter of cap 18 to be smaller than the outer diameter of rear end portion 38 constituting medicinal liquid container body insertion port 30 in inside plug 14 (in other words, the outer diameter of rear end portion 38 constituting medicinal liquid container body insertion port 30 is equal to or larger than the maximum outer diameter of cap 18).

[0035] The material of cap 18 is not particularly limited, and may be at least one selected from the group consisting of polypropylene (PP), polyethylene (PE), and acrylonitrile butadiene styrene (ABS), as long as it is not extremely poor in rigidity to prevent a decrease in the opening torque of cap 18 or in moisture-proofing performance.

[0036] (Assembly of the drug solution application container 10) A manufacturing procedure for the chemical solution applicator container 10 according to this embodiment will be briefly described. First, the lower end of the brush 16 is inserted into the brush insertion hole 28 of the inside plug 14, and the brush 16 is attached to the inside plug 14. Thereafter, the tip 27 of the brush 16 and the inside plug 14 is inserted into the insertion hole 40 of the cap 18, and the cap 18 is rotated relative to the inside plug 14, so that the inside plug male thread 32 of the inside plug 14 and the cap female thread 42 of the cap 18 are screwed together, thereby holding the cap 18 with the inside plug 14. At this point, the chemical solution applicator 13 is completed.

[0037] Next, after filling the liquid medicine container body 12 with a predetermined amount of liquid medicine L in advance, the neck portion 20 of the liquid medicine container body 12 is inserted into the liquid medicine container body insertion port 30 of the inner stopper 14, and the male thread 24 formed on the neck portion 20 of the liquid medicine container body 12 is screwed into the female thread 36 formed on the surface of the liquid medicine container body insertion port 30 of the inner stopper 14, thereby combining the liquid medicine container body 12 and the liquid medicine applicator 13. This completes the manufacture of the liquid medicine applicator container 10.

[0038] (Features of the drug solution application container 10) In the drug solution applicator 13 of the drug solution application container 10 of this embodiment, a middle stopper male thread 32 (holding portion) that holds the cap 18 when the brush 16 and the tip portion 27 of the middle stopper 14 are inserted into the insertion hole 40 of the cap 18 is formed on the outside of the middle stopper 14 that constitutes the drug solution applicator 13, and a cap female thread 42 (held portion) that is held by the middle stopper male thread 32 (holding portion) is formed on the inside of the cap 18.

[0039] As a result, when the chemical liquid container body 12 and the chemical liquid applicator 13 are separated from the manufacturer of the chemical liquid application container 10 and delivered to the manufacturer of the chemical liquid L, the brush 16 and the tip 27 of the inner stopper 14 can be inserted into the insertion hole 40 of the cap 18, and the inner stopper male thread 32 (holding portion) of the inner stopper 14 and the cap female thread 42 (held portion) of the cap 18 can be combined for transport.

[0040] Therefore, it is possible to avoid a problem in which the cap 18 accidentally interferes with the tip of the brush 16 when the manufacturer of the chemical solution L assembles the cap 18 to the inner plug 14, or the exposed brush 16 is hit against something, resulting in damage to the brush 16.

[0041] In addition, a cap abutment surface 34 that abuts against the inside of the cap 18 is formed on the outside of the inside plug 14, and this cap abutment surface 34 is a tapered surface that slopes outward from the center of the inside plug 14 toward the opposite side from the tip side of the inside plug 14 where the brush 16 is attached.

[0042] Furthermore, a stopper abutment surface 44 that abuts against the outside of the stopper 14 is formed on the inside of the cap 18, and this stopper abutment surface 44 is a tapered surface that slopes from the outside of the cap 18 toward the center from the opening side of the insertion hole 40 toward the back side of the insertion hole 40.

[0043] By forming the cap abutment surface 34 of the inside plug 14 and the inside plug abutment surface 44 of the cap 18 as tapered surfaces in this manner, the airtightness due to the abutment between the inside plug 14 and the cap 18 can be improved, and the space surrounding the brush 16 in the insertion hole 40 is made airtight, thereby preventing the chemical solution L from undesirably evaporating or leaking from the tip of the brush 16 during storage. Also, the cap abutment surface 34, which is a tapered surface that slopes outward from the center of the inside plug 14 from the tip side of the inside plug 14 to which the brush 16 is attached toward the opposite side, is pushed toward the center by the inside plug abutment surface 44, thereby improving the holding force of the inside plug 14 for the brush 16 inserted in the brush insertion hole 28.

[0044] In this embodiment, both the cap abutting surface 34 and the inside plug abutting surface 44 are tapered surfaces, but it is sufficient that at least one of them is a tapered surface.

[0045] Furthermore, since the inner plug male thread 32 (retaining portion) of the inner plug 14 is formed near the cap abutment surface 34, by tightly tightening the inner plug male thread 32 (retaining portion) with the cap female thread 42 (retained portion) of the cap 18, the cap abutment surface 34 and the inner surface of the cap 18 are pressed against each other more strongly, thereby further improving the airtightness described above.

[0046] In addition, a liquid medicine container body insertion port 30 into which the neck 20 of the liquid medicine container body 12 is inserted is formed at the end (rear end 38) of the inner stopper 14 opposite to where the brush 16 is attached, and by setting the outer diameter of the rear end 38 that constitutes this liquid medicine container body insertion port 30 to be equal to or greater than the maximum outer diameter of the cap 18, the outer peripheral surface of the rear end 38 of the inner stopper 14 is held rather than the outer peripheral surface of the cap 18 when the liquid medicine applicator 13 is combined with the liquid medicine container body 12 or when the user uses the liquid medicine applicator container 10.

[0047] As a result, when combining the medicinal liquid applicator 13 with the medicinal liquid container body 12, the inner stopper 14 (medical liquid applicator 13) can be securely attached to the medicinal liquid container body 12, and when a user uses the medicinal liquid applicator container 10, the user holds the outer peripheral surface of the rear end portion 38 of the inner stopper 14, thereby reducing the possibility of the user's body heat undesirably raising the temperature of the medicinal liquid L in the medicinal liquid container body 12.

[0048] (Variation 1) In the above-described embodiment, the neck 20 of the liquid medicine container body 12 is adapted to be inserted into the liquid medicine container body insertion port 30 formed in the rear end 38 of the inner plug 14. Alternatively, the rear end 38 of the inner plug 14 may be inserted into the upper end of the liquid medicine container body 12, as shown in Figures 3 and 4.

[0049] (Variation 2) In addition, in the above-described embodiment, the inner plug male thread 32 is formed as the retaining portion of the inner plug 14, and the cap female thread 42 is formed as the retained portion of the cap 18, but the retaining portion and the retained portion do not need to be threads. For example, a recess or protrusion may be formed on the outer surface of the inner plug 14, and a corresponding protrusion or recess may be formed on the inner surface of the cap 18.

[0050] (Variation 3) Furthermore, in the above-described embodiment, the inner plug male thread 32 and the cap abutment surface 34, which are the retaining portions, were formed on the tip portion 27 of the inner plug 14. Alternatively, as shown in Figures 5 and 6, the inner plug male thread 32 and the cap abutment surface 34 may be formed at a position other than the tip portion 27 of the inner plug 14 (in the figures, the middle portion of the inner plug 14).

[0051] Of course, the cap female threads 42 and the inner plug abutment surface 44 of the cap 18 will also be positioned closer to the opening of the insertion hole 40 in accordance with the inner plug male threads 32 and the cap abutment surface 34 of the inner plug 14 .

[0052] (Variation 4) In the embodiment described above, the inner plug male thread 32 is formed as the holding portion of the inner plug 14, and the cap female thread 42 is formed as the held portion of the cap 18, but conversely, the inner plug female thread may be formed as the holding portion of the inner plug 14, and the cap male thread may be formed as the held portion of the cap 18.

[0053] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0054] 10: medicinal liquid application container, 12: medicinal liquid container body, 13: medicinal liquid application tool 14...Inner plug, 16...Brush, 18...Cap 20...Neck, 22...Opening, 24...Male thread 26... inner plug body, 27... (inner plug body 26) tip portion, 28... brush insertion hole, 30... drug solution container body insertion port, 32... inner plug male thread, 34... cap abutment surface, 36... female thread, 38... (inner plug body 26) rear end portion 40: insertion hole, 42: cap female screw, 44: inner plug abutment surface L: Chemical solution

Claims

1. With a brush, A middle plug having a brush insertion hole into which the brush is attached; and a cap having an insertion hole into which the tip of the brush or the inside plug is inserted, a holder for holding the cap in a state where the brush or the tip of the inside plug is inserted into the insertion hole is formed on an outer surface of the inside plug opposite to the surface that defines the brush insertion hole; A held portion that is held by the holding portion is formed on the inside of the cap. Chemical applicator.

2. The holding portion is a male screw, and the held portion is a female screw that engages with the holding portion. The drug solution applicator according to claim 1.

3. A cap contact surface that contacts the inside of the cap is formed on the outside of the inside plug, The cap contact surface is a tapered surface that slopes outward from the center of the inside plug toward the opposite side from the tip side of the inside plug to which the brush is attached.

3. The drug solution applicator according to claim 1 or 2.

4. An inner plug abutment surface that abuts against an outer side of the inner plug is formed on the inner side of the cap, The inner plug abutment surface is a tapered surface that slopes from the outside of the cap toward the center from the opening side of the insertion hole toward the back side of the insertion hole.

3. The drug solution applicator according to claim 1 or 2.

5. a liquid medicine container body insertion port into which a neck portion of a liquid medicine container body is inserted is formed at an end of the inner plug opposite to the end where the brush is attached; The outer diameter of the end portion constituting the drug solution container body insertion port is equal to or larger than the maximum outer diameter of the cap. The drug solution applicator according to any one of claims 1 to 4.

6. The drug solution applicator according to any one of claims 1 to 5, A liquid medicine container body in which the liquid medicine is stored. Chemical solution application container.

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