A double-chamber liquid storage and compartment-mixing single-dose liquid dropping bottle

The single-dose dropper bottle design with dual-chamber storage and separate mixing chambers utilizes rigid and flexible bottle bodies and easily tearable films to achieve aseptic quantitative mixing of the drug solution, solving the problems of drug solution precipitation and contamination, and ensuring efficacy and safety.

CN224393505UActive Publication Date: 2026-06-23ZHANGJIAGANG ZHONGHUI MEDICAL PLASTIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521817843.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2026-06-23
Estimated Expiration
2035-08-26

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    Figure CN224393505U_ABST
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Abstract

The utility model discloses a single dose liquid drop bottle of double -cavity liquid storage cavity -separating mixed liquid, include: rigid bottle body and flexible bottle body, the sealing end of rigid bottle body on integral moulding has liquid outlet hole and breakable plugging, and breakable plugging blocks up liquid outlet hole, and the sealing end of flexible bottle body is away from the opening end of rigid bottle body, and the opening end of flexible bottle body is connected with the opening end of rigid bottle body, and the film that can tear easily and will not produce chippings is sealed to be provided on the opening end of flexible bottle body. The utility model discloses simple operation can also make the quantitative mixing of drug solution and the adjustment drug solution in the sterile environment, prevents the pollution of drug solution and guarantees the precision of the use of medicine.
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Description

Technical Field

[0001] This utility model relates to the field of medical packaging, and in particular to a single-dose drip bottle with a dual-chamber liquid storage and mixing chamber. Background Technology

[0002] To avoid contamination from repeated use of large dropper bottles, single-dose dropper bottles have been introduced to the market. However, these single-dose dropper bottles typically contain only a single dose of medication. Some medications require extremely high or low pH, high osmotic pressure, or high concentrations for stable storage. Medications under these conditions can cause eye irritation or other discomfort. Adjusting the pH, osmotic pressure, or concentration is necessary to maximize efficacy, requiring the separate preparation of a single-dose adjusting solution. However, prolonged mixing of the single and adjusting solutions can lead to precipitation, degradation, and stratification, reducing efficacy. Therefore, pre-mixing is generally avoided; mixing is only done shortly before use. Current industry practices cannot simultaneously address the efficacy, comfort, and stability requirements of these medications. Furthermore, mixing medications in ordinary environments easily causes contamination, compromising both efficacy and safety, and is not recommended. Utility Model Content

[0003] The purpose of this invention is to provide a single-dose dropper bottle with a dual-chamber storage and mixing chamber, which is not only simple to operate, but also allows for quantitative mixing of two drug solutions in a sterile environment.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a single-dose dripping bottle with dual-chamber liquid storage and mixing, comprising: a rigid bottle body and a flexible bottle body, wherein an outlet hole and a breakable seal are integrally formed on the sealing end of the rigid bottle body, the breakable seal blocks the outlet hole, the sealing end of the flexible bottle body is away from the opening end of the rigid bottle body, the opening end of the flexible bottle body is connected to the opening end of the rigid bottle body, and an easily tearable and non-fragmenting film is sealed on the opening end of the flexible bottle body.

[0005] Furthermore, in the aforementioned single-dose dripping bottle with dual-chamber storage and mixing, a flexible sealing ring is integrally formed on the open end of the flexible bottle body, an inverted conical shoulder is provided on the outer wall of the flexible sealing ring, a heat-sealed film covers the flexible sealing ring, an inverted conical annular groove is provided on the inner wall of the open end of the rigid bottle body, the flexible sealing ring is sealed and engaged in the open end of the rigid bottle body, and the inverted conical shoulder on the flexible sealing ring is engaged in the inverted conical annular groove.

[0006] Furthermore, in the aforementioned single-dose dripping bottle for dual-chamber liquid storage and mixing, both the flexible and rigid bottle bodies are elliptical cylindrical in shape. The two arc-shaped wide walls of the flexible bottle body and the two arc-shaped wide walls of the rigid bottle body are in the same radial direction. The cross-sections of the opening end of the rigid bottle body, the opening end of the flexible bottle body, and the flexible sealing ring are all elliptical.

[0007] Furthermore, in the aforementioned single-dose dripping bottle with dual-chamber liquid storage and mixing, anti-slip protrusions are provided on both wide arc-shaped walls of the flexible bottle body, with the anti-slip protrusions close to the open end of the flexible bottle body, and an annular pressing guide groove is provided on the flexible bottle body, with the pressing guide groove close to the sealed end of the flexible bottle body.

[0008] Furthermore, in the aforementioned single-dose dripping bottle with dual-chamber liquid storage and mixing, a flat handle is integrally formed on the breakable seal. The wide wall of the flat handle is in the same radial direction as the arc-shaped wide wall of the rigid bottle body, and finger pressure grooves are provided on both wide walls of the flat handle.

[0009] Furthermore, in the aforementioned single-dose dripping bottle with dual-chamber liquid storage and mixing, a connecting plate is integrally formed on the sealing end of the flexible bottle body, and two label plates are symmetrically arranged on the connecting plate, with the two label plates and the arc-shaped wide wall of the flexible bottle body in the same radial direction.

[0010] Furthermore, in the aforementioned single-dose dropper bottle for dual-chamber liquid storage and mixing, several such single-dose dropper bottles are arranged side by side, and pre-cut weakened tear lines are provided between adjacent rigid bottles, adjacent flexible bottles, and adjacent connecting plates.

[0011] The advantages of this invention are as follows: the required mixed medicine and the conditioning medicine are separately and quantitatively filled into rigid and flexible bottles in a sterile environment, and separated by an easily tearable and non-fragmenting film. This physical isolation solves the mixing incompatibilities that may occur when the two medicines are mixed in advance, such as precipitation, degradation, and stratification. This ensures the stability of the medicine composition during storage and transportation, and balances the efficacy and safety of both medicines. In use, pressing the flexible bottle to break the film allows for quantitative mixing of the medicine and the conditioning medicine. Then, opening the dispensing hole allows for quantitative dispensing. The operation is simple, ensuring the accuracy of medication. Moreover, the mixing of the medicines is carried out in a sterile environment, which can prevent the medicines from being contaminated. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a single-dose dropping bottle for dual-chamber liquid storage and mixing as described in this utility model.

[0013] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure.

[0014] Figure 3 This is a schematic diagram of the structure of multiple single-dose dripping bottles for dual-chamber liquid storage and mixing as described in this utility model, connected together. Detailed Implementation

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings and preferred embodiments.

[0016] like Figure 1 , Figure 2 As shown, the single-dose dripping bottle for dual-chamber liquid storage and mixing of the present invention includes: a rigid bottle body 1 and a flexible bottle body 2. Both the rigid bottle body 1 and the flexible bottle body 2 are elliptical cylindrical in shape. The two arc-shaped wide walls of the flexible bottle body 3 are in the same radial direction as the two arc-shaped wide walls of the rigid bottle body 1. The cross-sections of the opening ends of the rigid bottle body 1 and the flexible bottle body 2 are elliptical. A flexible sealing ring 21 is integrally formed on the opening end of the flexible bottle body 2. The cross-section of the flexible sealing ring 21 is also elliptical. The flexible sealing ring 21 has an inverted conical shoulder 211 on its outer side wall and an inverted conical annular groove on its inner side wall at the opening end of the rigid bottle body 1. The flexible sealing ring 21 is sealed and engaged in the opening end of the rigid bottle body 1, and the inverted conical shoulder 211 on the flexible sealing ring 21 is engaged in the inverted conical annular groove. A tight seal is formed between the flexible bottle body 2 and the rigid bottle body 1, which also improves the connection stability between the flexible bottle body 2 and the rigid bottle body 1. The elliptical structure can prevent the flexible bottle body 2 from... The rigid bottle 1 rotates to ensure sealing stability. A film 3 that is easy to tear and does not produce debris is heat-sealed on the flexible sealing ring 21. The film 3 separates the inner cavity of the flexible bottle 2 from the inner cavity of the rigid bottle 1. Moreover, the heat-sealing of the film 3 on the flexible sealing ring 21 can improve the adhesion stability of the film 3. When the flexible bottle 2 is subjected to slow extrusion, the film 3 is not easy to break. However, when the flexible bottle 2 is subjected to instantaneous extrusion, the film 3 is subjected to a large amount of kinetic energy. If this kinetic energy exceeds the fracture surface threshold of the film 3, the film 3 will break. Therefore, during normal transportation and storage, the flexible bottle 2 will not break when subjected to slight extrusion. In use, by quickly extruding the two wide arc-shaped walls on the flexible bottle 2 and bringing the two wide arc-shaped walls together, a large enough kinetic energy is instantaneously generated in the flexible bottle 2 to extrude the liquid medicine. Since there is no compression space for the liquid medicine, all the instantaneous kinetic energy is transferred to the film 3, causing the film 3 to break.

[0017] In this embodiment, the coating 3 is preferably made of PE film with a thickness of 0.025 to 0.035 mm. This thickness of PE film can not only seal the flexible bottle 2, but also break quickly when subjected to instantaneous extrusion pressure, and will not produce debris.

[0018] Anti-slip protrusions 22 are provided on both wide arc-shaped walls of the flexible bottle body 2. The anti-slip protrusions 22 are close to the opening end of the flexible bottle body 2. The anti-slip protrusions 22 can prevent slippage when pressing the flexible bottle body 2. An annular pressing guide groove 23 is provided on the flexible bottle body 2. The pressing guide groove 23 is close to the sealing end of the flexible bottle body 2, so that the flexible bottle body 2 can be more easily deformed after being subjected to pressure, which is convenient for squeezing. A connecting plate 24 is integrally formed on the sealing end of the flexible bottle body 2. Two label plates 4 are symmetrically arranged on the connecting plate 24. The two label plates 4 are in the same radial direction as the arc-shaped wide wall of the flexible bottle body 2. An outlet hole 11 and a breakable plug 12 are integrally formed on the sealing end of the rigid bottle body 1. The breakable plug 12 blocks the outlet hole 11. A flat handle 5 is integrally formed on the breakable plug 12. The wide wall of the flat handle 5 is in the same radial direction as the arc-shaped wide wall of the rigid bottle body 1. A finger pressure groove 51 is provided on both wide walls of the flat handle 5. When the fingers are pinched in the two finger pressure grooves 51 of the flat handle 5, the finger pressure grooves 51 provide a force point for the fingers to prevent the fingers from slipping and facilitate the breaking of the breakable plug 12.

[0019] During the production process, molding, filling, and assembly are carried out in a sterile environment. First, the open end of the molded flexible bottle 2 is facing upward, and a quantitative amount of conditioning solution is filled into the flexible bottle 2. Then, the film 3 is heat-sealed over the flexible sealing ring 21, and the flexible bottle 2 is sealed. The quantitative amount of conditioning solution is then filled into the rigid bottle 1. Finally, the sealed flexible bottle 2 is sealed and secured to the rigid bottle 1 by the flexible sealing ring 21. The film 3 blocks the contact between the flexible bottle 2 and the rigid bottle 1, preventing the medication and conditioning solution from coming into contact. In use, the single-dose drip bottle with a dual-chamber reservoir and separate compartment for mixing is held vertically with the rigid bottle 1 at the bottom and the flexible bottle 2 at the top. The membrane 3 is completely immersed in the adjusting solution. Then, the flexible bottle 2 is quickly squeezed, causing the adjusting solution in the flexible bottle 2 to break the membrane 3. The adjusting solution then enters the rigid bottle 1 and mixes with the medication. The membrane 3 does not produce debris when it breaks, thus preventing debris from contaminating the medication and causing no harm to the patient. After the medication and adjusting solution are mixed, the flat handle 5 is used to break the breakable seal 12, exposing the dispensing hole 11. Then, the flexible bottle 2 is pressed again to squeeze the mixed medication out of the dispensing hole 11. The empty single-dose drip bottle with a dual-chamber reservoir and separate compartment for mixing can then be discarded into the trash can. This method simplifies the operation and allows for quantitative mixing of the medication and adjusting solution in a sterile environment, ensuring accurate medication administration.

[0020] like Figure 3As shown, in actual production, multiple single-dose dropper bottles of the aforementioned dual-cavity liquid storage and mixing type need to be arranged side by side to form a single plate. At this time, it is only necessary to integrally connect two adjacent rigid bottles 1 and two adjacent flexible bottles 2 and the connecting plate 24 on the two connected flexible bottles 2 during injection molding of rigid bottle 1 and flexible bottle 2. Then, pre-cut weakened tear lines 6 are set between the connected rigid bottles 1, between the flexible bottles 2 and between the connecting plate 24. In use, two adjacent single-dose dropper bottles of the aforementioned dual-cavity liquid storage and mixing type can be separated by the weakened tear lines 6.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A single-dose dispensing bottle with a dual-chamber liquid storage and mixing chamber, characterized in that: include: The rigid bottle and the flexible bottle are integrally formed with a liquid outlet hole and a breakable seal on the sealing end of the rigid bottle. The breakable seal blocks the liquid outlet hole. The sealing end of the flexible bottle is away from the opening end of the rigid bottle. The opening end of the flexible bottle is connected to the opening end of the rigid bottle. The opening end of the flexible bottle is sealed with an easily tearable film that does not produce debris.

2. The single-dose dropping bottle for dual-chamber liquid storage and mixing according to claim 1, characterized in that: A flexible sealing ring is integrally formed on the open end of the flexible bottle body. An inverted conical shoulder is provided on the outer wall of the flexible sealing ring. A heat-sealed film covers the flexible sealing ring. An inverted conical ring groove is provided on the inner wall of the open end of the rigid bottle body. The flexible sealing ring is sealed and locked in the open end of the rigid bottle body. The inverted conical shoulder on the flexible sealing ring is locked in the inverted conical ring groove.

3. The single-dose dripping bottle for dual-chamber liquid storage and mixing according to claim 2, characterized in that: Both the flexible and rigid bottles are elliptical cylindrical in shape. The two curved wide walls of the flexible bottle and the two curved wide walls of the rigid bottle are in the same radial direction. The cross-sections of the opening end of the rigid bottle, the opening end of the flexible bottle, and the flexible sealing ring are all elliptical.

4. A single-dose dropping bottle for dual-chamber liquid storage and mixing according to claim 3, characterized in that: Anti-slip protrusions are provided on both wide arc-shaped walls of the flexible bottle body, with the anti-slip protrusions close to the opening end of the flexible bottle body. An annular pressing guide groove is provided on the flexible bottle body, with the pressing guide groove close to the sealing end of the flexible bottle body.

5. A single-dose dropping bottle for dual-chamber liquid storage and mixing according to claim 3, characterized in that: A flat handle is integrally formed on the breakable seal. The wide wall of the flat handle is in the same radial direction as the arc-shaped wide wall of the rigid bottle body. Finger pressure grooves are provided on both wide walls of the flat handle.

6. A single-dose dropping bottle for dual-chamber liquid storage and mixing according to claim 5, characterized in that: A connecting plate is integrally formed on the sealing end of the flexible bottle, and two label plates are symmetrically arranged on the connecting plate. The two label plates are in the same radial direction as the arc-shaped wide wall of the flexible bottle.

7. A single-dose dropping bottle for dual-chamber liquid storage and mixing according to claim 6, characterized in that: Several single-dose dropper bottles for dual-chamber liquid storage and mixing as described in claim 6 are arranged side by side, and pre-cut weakened tear lines are provided between adjacent rigid bottles, between adjacent flexible bottles and between adjacent connecting plates.