Soft inner container of spray bottle and medicine bottle comprising inner container
By designing a soft inner liner for the spray bottle and utilizing air guide grooves and claw structures to isolate the drug from the outside air, the problems of microbial contamination and preservative use in sprays are solved, ensuring medication safety and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YICHANG HUMANWELL PHARMA CO LTD
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-28
AI Technical Summary
Existing sprays are prone to microbial contamination due to continuous inhalation of outside air during use, and the addition of preservatives increases drug costs and poses risks to human health.
Design a flexible inner liner for a spray bottle, including a sleeve and a flexible drug capsule, using an air guide groove to form an air circulation channel to keep the drug isolated from the outside air, and adopting a detachable connection or claw fixing structure to ensure airtightness.
This isolates the drug from the outside air, preventing microbial contamination, reducing the use of preservatives, ensuring medication safety, and lowering costs.
Smart Images
Figure CN224166673U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a soft inner liner for a spray bottle and a medicine bottle containing the inner liner. Background Technology
[0002] Spray formulations refer to preparations in which the active pharmaceutical ingredient (API) or, with appropriate excipients, is filled into a specially designed delivery device. During use, manual pressure is applied to release the contents as a mist, which is then sprayed directly onto cavities, mucous membranes, and skin. Commercially available delivery devices operate on largely the same principle: a one-way valve pumps the medication from the reservoir. As the contents are pumped out, the volume of the cavity inside the bottle increases. To balance the air pressure inside and outside the bottle, an air vent is required on the one-way valve. Therefore, during use, outside air is continuously drawn in, introducing microorganisms that can contaminate the medication and compromise its safety.
[0003] To reduce the impact of microorganisms, most existing spray products contain preservatives such as benzalkonium chloride and sodium benzoate. In particular, for multi-dose sprays, in order to meet the requirements for preservation during use and extend the product's shelf life, sufficient amounts and / or multiple types of preservatives must be added to the drug formulation. This increases the cost of the drug and also increases the risks to human health when using it. Utility Model Content
[0004] The purpose of this invention is to provide a flexible inner liner for a spray bottle and a medicine bottle containing the inner liner. The flexible inner liner for the spray bottle can be used in conjunction with commercially available conventional spray pumps and medicine storage bottles to isolate the medicine from the outside air and ensure medication safety.
[0005] To solve the above problems, the technical solution of this utility model is as follows:
[0006] A flexible inner liner for a spray bottle includes a sleeve with an outwardly extending flange at the upper end and a flexible medicine bladder at the lower end. The sleeve and the flange form a flange sleeve, and multiple air guide grooves are formed on the outer wall of the flange sleeve.
[0007] The lower end of the sleeve is fixedly connected to the drug capsule.
[0008] The drug capsule includes a test tube-shaped lower part and a conical tube-shaped upper part. The lower end of the sleeve has a constricted opening, and the upper part is assembled inside the constricted opening, forming a beveled fit with the constricted opening.
[0009] The sleeve has a hard ferrule with a tapered lower end. The ferrule has a groove in the middle and a groove with an inclined inner wall at the upper end. The lower end of the ferrule is inserted into the groove and forms an inclined fit with the inner wall of the groove. The upper tube opening is fitted into the groove of the ferrule.
[0010] Multiple "L"-shaped jaws are fixedly connected to the flange, and each jaw is evenly distributed around the sleeve axis.
[0011] A spray bottle includes a flexible inner liner, a cap, a medicine bottle, and a delivery pump. The delivery pump is disposed inside the flexible inner liner, which is disposed inside the medicine bottle. The cap, screwed onto the medicine bottle, presses the delivery pump and the upper flange of the flexible inner liner against the mouth of the medicine bottle.
[0012] A spray bottle includes a flexible inner liner, an aluminum cap, a medicine bottle, and a delivery pump. The delivery pump is disposed inside the flexible inner liner, which is disposed inside the medicine bottle. A flange edge claw engages with the mouth of the medicine bottle, and the aluminum cap clamps the delivery pump and the claw onto the mouth of the medicine bottle.
[0013] The beneficial effects of this utility model are as follows:
[0014] This invention features a flexible inner liner for packaging preservative-free sprays. The flange on the inner liner is press-fitted into the delivery pump chamber to form a seal. When the medication is pumped out of the flexible capsule, the air guide groove on the outer flange creates an airflow channel, causing the flexible capsule to deform and contract, maintaining air pressure balance. This flexible inner liner ensures that the medication inside the capsule remains completely isolated from the outside air, thus preventing external microorganisms from contacting the medication and ensuring medication safety.
[0015] The spray bottle of this invention uses a soft inner liner to package preservative-free spray. It has a simple structure, ensures drug quality, and reduces prescription and equipment costs, making it very suitable for industrial production. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings:
[0017] Figure 1 This is a three-dimensional structural diagram of Example 1.
[0018] Figure 2 This is a cross-sectional view of the structure of Example 1 when assembled into a medicine bottle.
[0019] Figure 3 This is a cross-sectional view of the structure of Example 1 when assembled into a medicine bottle.
[0020] Figure 4 This is a schematic diagram of the exploded structure of Example 2.
[0021] Figure 5 This is a schematic diagram of a half-section structure of Example 2.
[0022] Figure 6 This is a cross-sectional view of the structure of Example 2 when assembled into a medicine bottle.
[0023] Figure 7 This is a three-dimensional structural diagram of Example 3.
[0024] Figure 8This is a cross-sectional view of the structure of Example 3 when assembled into a medicine bottle.
[0025] Figure 9 This is a schematic diagram of the exploded structure of Example 2.
[0026] In the figure: flange 1, sleeve 2, air guide groove 3, medicine bag 4, delivery pump 5, bottle cap 6, medicine bottle 7, aluminum cap 8, ferrule 9, ferrule 10, lower part 41, upper part 42, groove 43, cut groove 91. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Example 1: As Figure 1 As shown, a preservative-free spray bottle with a flexible inner liner includes a sleeve 2. The upper end of the sleeve 2 is provided with an outwardly extending flange 1. The sleeve 2 and the flange 1 form a flange sleeve. Multiple air guide grooves 3 are opened on the outer wall of the flange sleeve. The lower end of the sleeve 2 is fixedly connected to a flexible medicine bag 4. The sleeve 2 and the flexible medicine bag 4 are integrally blow-molded. The medicine bag 4 has a thin wall, which allows the medicine bag 4 to deform and shrink. The upper end of the sleeve 2 has a conical opening. The delivery pump is assembled inside the sleeve 2 and forms a conical surface fit with the conical opening of the sleeve 2.
[0029] During assembly, such as Figure 2 As shown, first, the soft inner liner is inserted into the medicine bottle 7, and the flange 1 is placed at the mouth of the medicine bottle 7. Then, the medicine is poured into the medicine bag 4. Finally, the bottle cap 6 with the hole in the middle is screwed onto the medicine bottle 7. The bottle cap 6 presses the outer edge of the delivery pump 5 and the flange 1 onto the mouth of the medicine bottle 7. The upper end of the delivery pump 5 drain pipe passes through the hole of the bottle cap 6. Since the delivery pump housing and the sleeve 2 are in a conical fit, the medicine can be sealed.
[0030] When using, such as Figure 2 As shown, pressing the delivery pump 5 draws the liquid medicine from the sac 4. Outside air enters the sac 7 through the threaded gap between the cap 6 and the sac 7 and the air guide groove 3, forming an air circulation channel. This ensures the sac 4 contracts normally, completely isolating the medicine inside from the outside air. Consequently, external microorganisms cannot contact the medicine in the sac 4, ensuring medication safety. Additionally, as shown... Figure 3 As shown, this invention is also applicable to medicine bottles 7 sealed with aluminum caps 8.
[0031] Example 2: As Figures 4 to 6As shown, Embodiment 2 is a further improvement on Embodiment 1. The improvement is that the fixed connection between the lower end of the sleeve 2 and the flexible drug capsule 4 is changed to a separate and detachable connection. Compared with the fixed connection, this connection method allows the drug capsule 4 and the sleeve 2 to be made of different materials. For example, the sleeve 2 can be made of PE or PVC material, while the drug capsule 4 can be made of medical silicone rubber material. In this way, the liquid medicine that is not suitable to be contained in PE or PVC material can be contained in the drug capsule 4 made of silicone rubber material.
[0032] The specific modifications are as follows: The drug capsule 4 includes a test tube-shaped lower part 41 and a conical upper part 42. The lower end of the sleeve 2 is a constricted opening. The upper part 42 is fitted inside the constricted opening and forms a beveled fit with the constricted opening. A hard ferrule 9 with a conical lower end is provided inside the sleeve 2. A groove 91 is provided in the middle of the ferrule 9. A groove 43 with a beveled inner wall is provided in the upper end of the upper part 42. The lower end of the ferrule 9 is inserted into the groove 43 and forms a beveled fit with the inner wall of the groove 43. The opening of the upper part 42 is fitted inside the groove 91 of the ferrule 9. The upper end of the ferrule 9 fits with the conical surface of the delivery pump housing.
[0033] like Figure 6 As shown, when the bottle cap 6 is tightened, the bottle cap 6 drives the delivery pump 5 to squeeze the upper end of the sleeve 9 and simultaneously drives the sleeve 9 downward. Since the delivery pump 5 and the upper end of the sleeve 9 are in a conical fit, the lower end of the sleeve 9 and the inner wall of the groove 43 form an inclined fit, and the outer wall of the upper part 42 of the sac 4 and the lower end of the sleeve 2 are in a constricted inclined fit, when the downward-moving sleeve 9 pushes the upper part 42 of the sac 4 downward, it not only seals the sleeve 9 and the delivery pump 5, but also presses and fixes the upper part 42 of the sac 4 inside the constricted opening of the sleeve 2.
[0034] Example 3: As Figures 7 to 9 As shown, in Embodiment 3, compared to Embodiment 2, multiple "L"-shaped claws 10 are fixedly connected to the flange 1, and each claw 10 is evenly distributed around the axis of the sleeve 2. The claws 10 on the edge of the flange 1 are snapped onto the mouth of the medicine bottle 7, and the aluminum cap 8 with a hole in the middle fixes the delivery pump 5 and the claws 10 onto the mouth of the medicine bottle 7 by the capping machine. This structure is suitable for the aluminum cap 8 and the claws 10 on the medicine bottle 7.
[0035] The embodiments described in this specification are merely examples of implementations of the inventive concept. The scope of protection of this utility model should not be considered as limited to the specific forms described in the embodiments. The scope of protection of this utility model also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.
Claims
1. A flexible inner liner for a spray bottle, characterized in that: Includes a sleeve (2), the upper end of the sleeve (2) is provided with an outwardly extending flange (1), the lower end of the sleeve (2) is connected to a flexible drug bag (4), the sleeve (2) and the flange (1) form a flange sleeve, and multiple air guide grooves (3) are opened on the outer wall surface of the flange sleeve.
2. The soft inner liner of a spray bottle according to claim 1, characterized in that: The lower end of the sleeve (2) is fixedly connected to the medicine bag (4).
3. The soft inner liner of a spray bottle according to claim 1, characterized in that: The drug capsule (4) includes a test tube-shaped lower part (41) and a conical tube-shaped upper part (42). The lower end of the sleeve (2) is a constricted opening. The upper part (42) is fitted inside the constricted opening and forms a beveled fit with the constricted opening. A hard ferrule (9) with a conical lower end is provided inside the sleeve (2). A groove (91) is provided in the middle of the ferrule (9). A groove (43) with a beveled inner wall is provided in the upper end of the upper part (42). The lower end of the ferrule (9) is inserted into the groove (43) and forms a beveled fit with the inner wall of the groove (43). The opening of the upper part (42) is fitted inside the groove (91) of the ferrule (9).
4. A flexible inner liner for a spray bottle according to any one of claims 1 to 3, characterized in that: Multiple "L"-shaped claws (10) are fixedly connected to the edge of the flange (1), and each claw (10) is evenly distributed around the axis of the sleeve (2).
5. A spray bottle, characterized in that: The spray bottle includes a soft inner liner as described in any one of claims 1 to 3, and also includes a cap (6), a medicine bottle (7) and a delivery pump (5), wherein the delivery pump (5) is disposed inside the soft inner liner, the soft inner liner is disposed inside the medicine bottle (7), and the cap (6) presses the delivery pump (5) and the upper flange (1) of the soft inner liner onto the mouth of the medicine bottle (7).
6. A spray bottle, characterized in that: The spray bottle includes the soft inner liner as described in claim 4, and also includes an aluminum cap (8), a medicine bottle (7) and a delivery pump (5). The delivery pump (5) is disposed inside the soft inner liner, and the soft inner liner is disposed inside the medicine bottle (7). The edge claw (10) of the flange (1) is fastened to the mouth of the medicine bottle (7). The aluminum cap (8) fixes the delivery pump (5) and the claw (10) to the mouth of the medicine bottle (7).