A refillable cap for an aluminum medicinal ointment tube and an ointment tube

Abstract

The utility model discloses a kind of caps of repeatable sealing medicinal aluminium quality ointment tube and ointment tube, especially suitable for packing ointment medicine container.The cap is composed of body and sealing soft component arranged on the body, and the body material hardness is greater than the sealing soft component material;the body is used for being fixed on medicine container mouth, and the sealing soft component is used for wrapping or plugging medicine container mouth.The cap cover of the utility model is matched by body hard material and sealing soft component, adopts thread or buckle connection, sealing soft component fills gap, and sealing effect is not influenced by user habit, improves the sealing property, stability in the use of ointment medicine, guarantees medicine quality and curative effect, reduces waste and metamorphic risk.

Description

Technical Field

[0001] This utility model relates to a component for sealing the opening of a medicine container, particularly suitable for caps and containers for ointment medicines. Background Technology

[0002] In the current pharmaceutical field, most medicine containers used to hold ointments are made of materials such as aluminum or plastic tubes. The existing testing procedures for these containers during manufacturing have certain limitations, typically focusing only on testing the container's seal at the time of manufacture, while lacking continuous and effective monitoring and consideration of the sealing condition during subsequent actual use.

[0003] In practical applications, it's rare for ointments to be used up in one go. Taking everyday household medications as an example, for common ailments like skin inflammation, users typically apply a limited amount each time, often leaving a significant amount of medication remaining in the container after the first use. In such cases, a cap is needed to seal the remaining ointment and maintain its effectiveness. In many households, screw caps are the most common sealing method. Similarly, in hospital wards or outpatient settings, the proper preservation of remaining ointments after application by healthcare professionals relies on an effective seal, directly impacting the safe continued use of the medication.

[0004] However, traditional screw cap sealing methods have revealed numerous problems in practical use. Their sealing performance is easily affected by user habits, with significant differences in the force, angle, and degree of tightening when different users tighten the cap. Elderly individuals may lack the hand strength to tighten the cap to the optimal seal; children may not tighten it completely due to unfamiliarity or lack of patience. Even in relatively professional environments like hospitals, busy medical staff may fail to ensure an ideal seal due to negligence or time constraints. These situations often result in poor container sealing, allowing air, moisture, and other external factors to enter and come into contact with the medication, ultimately leading to drug inactivation. Drug inactivation not only means patients cannot achieve the expected treatment effect, delaying their condition, but also results in a serious waste of drug resources and increases the financial burden on patients.

[0005] In light of this, to effectively address this long-standing issue of ensuring the safety and quality of medicines, this patent features an ingeniously designed resealable cap for pharmaceutical aluminum ointment tubes. This cap was designed with the operational characteristics and practical needs of different user groups in mind. Whether for easy and convenient self-administration by the elderly and children at home, or for efficient and reliable use by medical staff in busy hospital environments, it is designed for ease of use. Its unique structure and design ensure that the sealing effect is unaffected by user habits, thereby fundamentally and significantly improving the sealing and stability of ointment-type medicines during use. This lays a solid foundation for ensuring the quality and efficacy of the medicine, effectively reducing the risk of waste and spoilage caused by sealing problems, and building a robust and reliable barrier for the safe use of medicines. Utility Model Content

[0006] This utility model aims to overcome the problem of poor sealing of medicine containers caused by different people's usage habits, and provides a cap and container for a resealable aluminum ointment tube with stable sealing performance that is not affected by usage habits.

[0007] The technical solution to achieve the purpose of this utility model is that the cap of a resealable pharmaceutical aluminum ointment tube is composed of a body and a sealing soft component provided on the body. The hardness of the body material is greater than that of the sealing soft component material. The body is used to fix it to the opening of the medicine container, and the sealing soft component is used to wrap or seal the opening of the medicine container.

[0008] Furthermore, the main body includes a fixing member for connecting the opening of the medicine container and a connecting member for fixing the sealing soft component.

[0009] Furthermore, the fastener is provided with a connecting hole, and the fastener includes an annular wall connected to the connecting hole and a fixed end face connected to the other end of the annular wall, with a fixing hole provided on the fixed end face; the fixed end face is inside the connecting hole.

[0010] Furthermore, the fastener is a sleeve with screws or a sleeve with clips.

[0011] Furthermore, the connector is an annular body with a fixing hole.

[0012] Furthermore, the sealing soft component consists of a sealing head, a perforated part, and a fixing part. The sealing head passes through a fixing hole provided on the body, the perforated part is stuck in the fixing hole, and the fixing part seals the other side of the fixing hole.

[0013] The diameter of the sealing head is larger than the diameter of the fixing hole, and the diameter of the fixing part is larger than the diameter of the sealing head; or the sealing soft part is a soft sleeve with a long cross section of trapezoidal or conical shape, and the large edge of the soft sleeve is fixed to the edge of the fixing hole on the body.

[0014] Furthermore, the sealing head is triangular, polygonal, or hollow annular.

[0015] Furthermore, the hollow annular center is also provided with a protrusion.

[0016] Furthermore, the main body is formed in one piece.

[0017] Furthermore, the container consists of an aluminum tube and a cap located at the opening of the aluminum tube.

[0018] The cap designed in this patent is ingenious in that it is mainly composed of a hard material body and a soft sealing component. The two complement each other and work together to achieve excellent sealing performance.

[0019] When connecting to the medicine container opening, the rigid material of the main body is fully utilized to ensure a stable and reliable connection through a rigid connection method. Specifically, when using a threaded connection, the threads, due to their tight interlocking characteristics, allow the cap to gradually achieve a perfect fit with the container opening during the rotation of the cap. This connection method is not only strong but also offers some adjustability to accommodate different sealing requirements. Alternatively, when using a snap-fit ​​connection, the snap-fit, with its unique elastic deformation capability, can quickly and precisely form a fast and extremely strong locking effect upon contact with the edge of the container opening. This connection method is simple and quick to operate, greatly improving ease of use.

[0020] The sealing soft component is undoubtedly the core key to achieving excellent sealing performance. When the rigid body is securely fixed to the opening of the medicine container in a pre-designed manner, the sealing soft component immediately plays its crucial role, providing a highly precise and comprehensive seal to the container opening. For example, the sealing soft component can be made of high-quality rubber or silicone. The excellent softness and elasticity of these materials allow them to perfectly fill any tiny gaps that may exist between the container opening and the cap, forming a tight seal that effectively prevents air, moisture, and other adverse external factors from entering the container.

[0021] Whether in a typical home environment, where elderly people or children may have some inconsistency in their handling and pressure control when storing ointment medications after use, this new cap, thanks to its unique design, can still reliably maintain a seal. Similarly, in a professional medical setting in a hospital, where medical staff frequently use ointments and seal remaining medications amidst their busy work schedules, this cap maintains a consistently good seal regardless of user habits. This stable and reliable design greatly improves the sealing and stability of ointment medications throughout their use, fundamentally and effectively ensuring the quality and efficacy of the medication, significantly reducing waste and spoilage risks caused by sealing problems, providing a solid and reliable guarantee for the safe use of medications, and truly meeting the stringent sealing requirements of medications in different usage scenarios.

[0022] Using a combination of aluminum tubing and caps can significantly improve production efficiency and provide optimal sealing performance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is another structural schematic diagram of the present invention.

[0025] Figure 3 This is a schematic diagram of the preferred structure of this utility model.

[0026] Figure 4 for Figure 1 Reference diagram for usage.

[0027] Figure 5 for Figure 2 Reference diagram for usage.

[0028] Figure 6 for Figure 3 Reference diagram for usage.

[0029] Figure 7 This is a schematic diagram of the container structure.

[0030] As shown in the figure, the components are: body 1, sealing soft part 2, fixing part 11, connecting part 12, annular wall 13, fixing end face 14, sealing head 21, perforation part 22, fixing part 23, medicine container opening A, aluminum tube 3, and cap 4. Detailed Implementation

[0031] Example 1

[0032] like Figure 1 and Figure 4As shown, the cap of a resealable pharmaceutical aluminum ointment tube according to this utility model mainly consists of two parts: a body 1 and a sealing soft component 2 disposed on the body 1. The body 1 is made of a material with significantly greater hardness than the sealing soft component 2; this difference in material properties lays the foundation for the cap to achieve good sealing performance.

[0033] The main body 1 plays a crucial role in the overall structure by being fixed to the opening A of the medicine container. It includes a fixing member 11 for connecting to the opening A and a connecting member 12 for fixing the sealing soft component 2. In this embodiment, the fixing member 11 is preferably a sleeve with screws (of course, a sleeve with buckles is also feasible, but the screw connection method is described in detail here), which is a common and practical connection structure. By screwing in and out, the cap and the opening of the medicine container can be easily connected and separated. The connecting member 12 is designed as an annular body with a fixing hole. This structure can provide stable support and facilitate cooperation with the sealing soft component 2.

[0034] The sealing soft component 2 consists of a sealing head 21, a perforated portion 22, and a fixing portion 23. The sealing head 21 is cleverly designed with a diameter larger than the fixing hole diameter on the main body 1. This allows the sealing head 21 to pass through the fixing hole during installation, and its larger diameter creates a certain squeezing effect, ensuring a tight seal. The perforated portion 22 fits precisely into the fixing hole, further enhancing the sealing effect of the sealing soft component 2 at the fixing hole and preventing air or other impurities from entering the container from this area. The fixing portion 23 has a larger diameter than the sealing head 21, effectively sealing the other side of the fixing hole, forming multiple layers of sealing protection.

[0035] In practical use, the sealing head 21 will be partially inserted into the opening A of the medicine container, thereby directly sealing the container opening. To further optimize the sealing performance, the sealing head 21 can be designed as a triangle or a polygon. This shape design allows the sealing head 21 to better adapt to container openings of different shapes and sizes when inserted into the container opening, increasing the contact area and improving the sealing effect. At the same time, the body 1 is manufactured using a one-piece molding process. This process ensures the structural integrity and stability of the body 1, reducing gaps or defects that may occur due to component connections, thereby further improving the overall sealing performance of the cap.

[0036] Example 2

[0037] like Figure 2 and Figure 5 As shown, the cap of the resealable pharmaceutical aluminum ointment tube in another embodiment is also composed of a body 1 and a sealing soft component 2. The material properties of the body 1 and the sealing soft component 2, as well as their basic functions in the overall structure, are the same as in Embodiment 1.

[0038] The fixing component 11 of the main body 1 can also be a sleeve with screws or a sleeve with buckles, and the connecting component 12 is also an annular body with a fixing hole. The sealing soft component 2 has a slightly different structure; its sealing head 21 is designed as a hollow annular shape. This hollow annular sealing head 21 can tightly wrap around the outer edge of the medicine container opening during use, forming a unique sealing method. Furthermore, a protrusion is provided in the center of the hollow annular shape. When the cap is installed on the container opening, the protrusion can partially insert into the medicine container opening A, forming a tighter contact with the inside of the container opening and effectively preventing external substances from entering the container. The diameter of the sealing head 21 is larger than the diameter of the fixing hole, the diameter of the fixing part 23 is larger than the diameter of the sealing head 21, and the perforated part 22 is engaged in the fixing hole, together achieving a good sealing effect.

[0039] Example 3

[0040] like Figure 3 and Figure 6 As shown, in this embodiment, the composition of the cap body 1 and the sealing soft component 2, as well as their basic relationship with the drug container opening A, are consistent with the previous embodiment.

[0041] The fixing component 11 can be a sleeve with screws or a sleeve with buckles. The connecting component 12 is an annular body with a fixing hole, and the fixing component 11 has a connecting hole. The connecting component 12 includes an annular wall 13 connected to the connecting hole and a fixing end face 14 located at the other end of the annular wall 13. The fixing end face 14 has a fixing hole and is located inside the connecting hole. The sealing soft component 2 is a soft sleeve with a long cross-section in the shape of a trapezoid or cone. The large edge of the soft sleeve is fixed to the edge of the fixing hole on the body 1. This design allows the soft sleeve to be placed inside the annular wall 13, which provides good protection for the soft sleeve and prevents it from deforming due to force during use, thereby ensuring that its sealing performance is not affected. In actual use, the medicine container opening A is inserted from the large end of the sealing soft component 2. As the insertion depth increases, the container opening at the small end can be completely wrapped by the soft sleeve, forming a complete sealed space, effectively preventing external factors from affecting the medicine. Through the detailed description of the three different embodiments above, it can be seen that the cap structure design of this utility model is flexible and diverse, capable of adapting to different usage needs and scenarios. Whether in daily household medication use or in professional medical environments in hospitals, it can provide a reliable sealing solution for ointment containers, ensuring the quality and safety of the medicine during use. Furthermore, in actual production, appropriate implementation methods can be selected based on specific cost, process, and other factors, demonstrating high practicality and promotional value.

[0042] like Figure 7 As shown, the ointment tube consists of an aluminum tube 3 and a cap 4 located at the opening of the aluminum tube 3.

[0043] From January to April 2024, the patent holder began research and testing on the sealing performance of aluminum tubes after repeated opening. Based on the sealing test specifications in "YBB00162002-2015 Aluminum Pharmaceutical Ointment Tubes," sealing tests were conducted on the aluminum pharmaceutical ointment tubes after opening. To address the sealing issues of sterile, ophthalmic, and burn ointments / creams / gels, as well as topical preparations that are easily oxidized or sensitive to air, after use and repeated opening, research and testing were conducted on the design of a soft-hard composite cap that fits snugly against the aluminum tube head. Figure 1 , 2 The three products corresponding to numbers 1 and 3 are connected to the container. The comparative test group uses the traditional threaded connection method, that is, the cap is connected to the container by threads.

[0044] Research and Testing Objectives: The combined soft-hard cap integrates the sealing properties of soft materials with the structural strength of hard materials, aiming to provide superior sealing performance and durability. Through a series of tests, we will verify the effectiveness of this design and evaluate its performance under different conditions. We will design a combined soft-hard cap that can tightly bond with aluminum pharmaceutical ointment tubes to address the sealing issues of sterile, ophthalmic, and burn ointments / creams / gels, as well as easily oxidized or air-sensitive topical preparations, after repeated opening and closing. We will also compare the sealing performance of the combined soft-hard cap with that of a traditional single-material cap.

[0045] Test method: Figure 1-3 Take 30 of each corresponding product and 30 of the traditional products.

[0046] After connecting the ointment tube, immerse it in a water bath at 10-30 degrees Celsius, with the end of the aluminum tube about 10 mm above the water surface. Then, pressurize the end of the aluminum tube to 0.2 MPa through a pressure tube. If there are no air bubbles in the water, there is no leakage.

[0047] First test: The aluminum tube end was unsealed and there was no leakage;

[0048] Second test: After opening the aluminum tube end, put the cap on the aluminum tube end and test. Figure 1-3 No leaks were found in any of the test samples. In contrast, four samples in the control group leaked. Analysis of the cause of the leaks revealed that the screws connecting the caps to the aluminum tube openings were misaligned.

[0049] The above embodiments are only some implementations of this utility model, and adjustments and improvements can be made according to specific needs in actual applications. The scope of protection of this utility model is defined by the claims.

Claims

1. A cap for a resealable pharmaceutical aluminum ointment tube, characterized in that: The cap consists of a body and a sealing soft component disposed on the body, wherein the hardness of the body material is greater than that of the sealing soft component material; The main body is used to fix it to the opening of the medicine container, and the sealing soft component is used to wrap or seal the opening of the medicine container.

2. The cap of a resealable pharmaceutical aluminum ointment tube according to claim 1, characterized in that: The main body includes a fixing member for connecting to the opening of the medicine container and a connecting member for fixing the sealing soft component.

3. The cap of a resealable pharmaceutical aluminum ointment tube according to claim 2, characterized in that: The fastener is provided with a connecting hole, and the fastener includes an annular wall connected to the connecting hole and a fixed end face connected to the other end of the annular wall, and a fixing hole is provided on the fixed end face; The fixed end face is inside the connection hole.

4. The cap of a resealable pharmaceutical aluminum ointment tube according to claim 2, characterized in that: The fastener is a sleeve with screws or a sleeve with clips.

5. The cap of a resealable pharmaceutical aluminum ointment tube according to claim 2, characterized in that: The connector is a ring-shaped body with a fixing hole.

6. The cap of a resealable pharmaceutical aluminum ointment tube according to any one of claims 1-5, characterized in that: The sealing soft component consists of a sealing head, a perforation part, and a fixing part. The sealing head passes through a fixing hole provided on the body, the perforation part is stuck in the fixing hole, and the fixing part seals the other side of the fixing hole. The diameter of the sealing head is larger than the diameter of the fixing hole, and the diameter of the fixing part is larger than the diameter of the sealing head; Alternatively, the sealing soft component may be a soft sleeve with a long cross-section in the shape of a trapezoid or a cone, and the large edge of the soft sleeve is fixed to the edge of the fixing hole on the body.

7. The cap of a resealable pharmaceutical aluminum ointment tube according to claim 6, characterized in that: The sealing head is triangular, polygonal, or hollow annular.

8. The cap of a resealable pharmaceutical aluminum ointment tube according to claim 7, characterized in that: The hollow annular center is also provided with a protrusion.

9. A cap for a resealable pharmaceutical aluminum ointment tube according to any one of claims 1-5, characterized in that: The main body is formed in one piece.

10. An ointment tube using a resealable pharmaceutical aluminum ointment tube cap as described in claim 9, characterized in that: The ointment tube consists of an aluminum tube and a cap located at the opening of the aluminum tube.

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