Tear-off dual body cap for vials and vials

Abstract

The utility model provides a kind of tearable double-body cover for penicillin bottle and penicillin bottle, belong to medical equipment field, it includes sealing plug and protective cover, sealing plug is used to block bottle mouth, protective cover includes protruding part, side wall and top cover, protruding part protrudes to penicillin bottle, sealing plug is integrally covered in the outer periphery of protruding part, the side of sealing plug away from protruding part is sealingly connected with the inner along of bottle mouth, the inner side of side wall is integrally connected with the edge of protective cover, and the inner along of side wall bottom is clamped in the outer periphery of bottle mouth, top cover is covered in side wall top, and the inner along of top cover is clamped with the outer periphery of side wall top, the hardness of side wall and the hardness of protective cover are all greater than the hardness of sealing plug;Side wall is equipped with two adjacent easy-to-tear recesses, and the easy-to-tear recesses penetrate the outer periphery of side wall along the axis of side wall.Compared with prior art, the utility model improves the bottle cap, solves the technical problems of the existing penicillin bottle cap operation cumbersome and hidden danger.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment, and more specifically, it relates to a tearable double-sided cap for vials. This utility model also relates to a vial having the aforementioned tearable double-sided cap for vials. Background Technology

[0002] A vial, also known as a borosilicate glass or soda-lime glass molded injection vial, is a small bottle sealed with a rubber stopper and an aluminum-plastic composite cap. Early penicillin was often contained in these vials, hence the name "vials."

[0003] In terms of structure and shape, vials have a narrower neck, with a uniform thickness below the neck. The mouth is slightly wider than the neck and slightly narrower than the body, and they are generally used for packaging vaccines, biological agents, powder injections, lyophilized drugs, and other pharmaceuticals.

[0004] A vial cap is a sealing cap used to seal a vial and prevent air from entering or leaving it. It is mainly sealed by a rubber dust plug and an aluminum-plastic connection point. The cap body is located on top of the rubber stopper. The vial cap can reduce the probability of contamination of the contents during use. With the help of pliers or other devices, the cap body can be torn open to inject liquid into the vial through medical instruments such as needles, or to open the rubber stopper of the vial to extract the medicine inside. The structure is relatively simple.

[0005] However, during use, the vials are difficult to open. Opening them by hand or with pliers or other aids is challenging, making it difficult to quickly remove the cap from the rubber stopper. The vial opening and stopper are also easily damaged during removal of the aluminum cap, compromising the safety of the user. Improvements are urgently needed. Utility Model Content

[0006] The purpose of this utility model is to provide a tear-off double-body cap for vials, so as to solve the technical problems of cumbersome operation and safety hazards of existing vial caps.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A tearable double-sided cap for vials is provided, comprising a sealing plug and a protective cap. The sealing plug is used to seal the vial opening. The protective cap includes a protrusion, a side panel, and a top cap. The protrusion protrudes into the vial. The sealing plug is integrally wrapped around the outer periphery of the protrusion. The side of the sealing plug opposite to the protrusion is sealed to the inner edge of the vial opening. The inner side of the side panel is integrally connected to the edge of the protective cap, and the inner edge of the bottom of the side panel is engaged with the outer periphery of the vial opening. The top cap covers the top of the side panel, and the inner edge of the top cap is engaged with the outer periphery of the top of the side panel. The hardness of the side panel and the protective cap are both greater than the hardness of the sealing plug.

[0008] The side panel is provided with two adjacent easy-tear recesses. The two easy-tear recesses are evenly distributed on the outer circumference of the side panel around the axis of the side panel, and the length direction of the two easy-tear recesses is parallel to the axis of the side panel. The easy-tear recesses penetrate the outer circumference of the side panel along the axis of the side panel.

[0009] In one possible implementation, corresponding to the tear-resistant recess, the top of the side panel is provided with a tear-resistant notch.

[0010] In one possible implementation, the inner edge of the bottom of the side panel is provided with a plurality of snap-fit ​​protrusions, each of the snap-fit ​​protrusions being evenly arranged around the axis of the side panel, and the snap-fit ​​protrusions engaging with the outer edge of the bottle opening.

[0011] In one possible implementation, a sealing ring is integrally connected to the side of the sealing plug away from the protrusion, and the sealing ring is sealed to the mouth of the vial.

[0012] In one possible implementation, the bottom of the protrusion is provided with a through hole that allows a needle to directly puncture the sealing plug.

[0013] In one possible implementation, the portion between the two tear-resistant recesses of the side panel is a tear-resistant part, which is integrally disposed with the protruding part.

[0014] In one possible implementation, the top outer edge of the side panel protrudes away from the side panel axis, and the bottom inner edge of the top cover protrudes towards the side panel axis, the top cover being snapped onto the top of the side panel.

[0015] Compared with the prior art, the advantages of the tear-off double-body cap for vials provided by this utility model are as follows:

[0016] Firstly, this invention utilizes a structure with a sealing plug and protective cap of varying hardness (the soft sealing plug provides a seal, while the hard protective cap ensures support), combined with an axially penetrating easy-tear recess design. This structure achieves a balance between one-handed, controllable tearing operation and sealing performance. When injection is required, the top cap can be opened, allowing the needle to penetrate the plastic sealing plug and enter the vial. Furthermore, after opening the top cap, the position of the needle within the vial can be more clearly observed by tearing open the easy-tear recess, making the needle insertion operation more efficient. After tearing open the side panel along the easy-tear recess, the hard protective cap provides a fulcrum. Since the side panel and protrusion are connected to the sealing plug, the soft sealing plug can be simultaneously disengaged from the vial opening by prying open the hard protective cap, achieving quick opening without auxiliary tools. This effectively replaces the traditional aluminum cap + rubber stopper dual-sealing system, solving the safety hazards of aluminum caps easily scratching operators and requiring a special opener.

[0017] Secondly, by adding an easy-tear notch to the top of the side panel, the above structure, together with the easy-tear recess mentioned above, forms a stress concentration guiding area. The notch, serving as the tearing starting point, can reduce the initial tearing resistance by approximately 30%, making the tearing direction more controllable and avoiding incomplete breakage of the side panel due to force deviation. This is especially suitable for medical personnel with weaker hand strength operating in such scenarios.

[0018] Furthermore, the multiple snap-fit ​​protrusions on the bottom of the side panel of this invention can form a multi-point mechanical interlock with the outer edge of the bottle mouth. Compared with the traditional aluminum continuous circumference fastener, the split protrusions reduce the difficulty of attaching the protective cap while ensuring sealing, and even medical staff with weaker hand strength can operate it with one hand.

[0019] Furthermore, the integrated sealing ring extending from the sealing plug creates a double sealing interface (sealing plug body + sealing ring) along the inner edge of the bottle opening, ensuring a tight seal for the medication inside the vial. Additionally, this invention reduces needle insertion resistance by approximately 50% when the needle punctures the sealing plug by pre-drilling a through hole at the bottom of the protrusion. The through hole area guides the needle's insertion path, avoiding the risk of debris shedding caused by random punctures with traditional rubber stoppers.

[0020] In addition to the aforementioned beneficial effects, this novel design, by separating the easy-tear portion and the protruding portion, concentrates stress in the easy-tear recessed area during tearing, avoiding damage to the sealing plug's functional area. This makes the overall bottle cap structure more rational. Furthermore, the interlocking latches between the top cap and the side panels achieve a balance between the dustproof protection function and the reusable opening feature of the top cap. Simultaneously, the cap can be easily removed with a single finger press, meeting the clinical needs of frequent medication dispensing.

[0021] Another objective of this invention is to provide a vial, including the tear-off double cap for vials mentioned above.

[0022] Compared to existing technologies, the vial of this invention has all the advantages of the aforementioned tearable double-body cap for vials, which will not be elaborated here. In addition, the vial body of this invention is made of plastic instead of aluminum, which can reduce the cost of the cap. Moreover, the entire double-body cap can be processed by two-color injection molding, which can ensure the overall airtightness and reliability of the cap while reducing the difficulty of opening the vial, making the improved vial easier to operate. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0024] Figure 1 A top view of the tear-off double-body cap for vials provided by this utility model;

[0025] Figure 2 A bottom view of the tear-off double-body cap for vials provided by this utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of the tear-off double-body cap for vials of this utility model.

[0027] In the picture:

[0028] 1. Sealing plug; 11. Sealing ring;

[0029] 2. Protective cover; 21. Protrusion; 211. Through hole; 22. Side panel; 221. Easy-tear recess; 222. Easy-tear notch; 223. Snap-fit ​​protrusion; 23. Top cover. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] In the description of this utility model, it should be noted that if terms such as "upper", "lower", "inner", "back" or indicating orientation or positional relationship appear, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0033] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] Please refer to the following: Figures 1 to 3 The present invention provides a tear-off double-sided cap for vials. This tear-off double-sided cap for vials includes a sealing plug 1 and a protective cap 2. The sealing plug 1 is used to seal the vial opening. The protective cap 2 includes a protrusion 21, a side panel 22, and a top cap 23. The protrusion 21 protrudes into the vial, and the sealing plug 1 is integrally covered around the outer periphery of the protrusion 21. The side of the sealing plug 1 opposite to the protrusion 21 is sealed to the inner edge of the vial opening. The inner side of the side panel 22 is integrally connected to the edge of the protective cap 2, and the inner edge of the bottom of the side panel 22 is engaged with the outer periphery of the vial opening. The top cap 23... The cover is placed on top of the side panel 22, and the inner edge of the top cover 23 is engaged with the outer periphery of the top of the side panel 22. The hardness of the side panel 22 and the hardness of the protective cover 2 are both greater than the hardness of the sealing plug 1. The side panel 22 is provided with two adjacent easy-tear recesses 221. The two easy-tear recesses 221 are evenly distributed on the outer periphery of the side panel 22 around the axis of the side panel 22, and the length direction of the two easy-tear recesses 221 is parallel to the axis of the side panel 22. The easy-tear recesses 221 penetrate the outer periphery of the side panel 22 along the axis of the side panel 22.

[0035] Compared to existing technologies, this embodiment achieves a balance between one-handed, controllable tearing operation and sealing performance by setting a structure with a sealing plug 1 and a protective cap 2 of different hardness (the sealing plug 1 is soft to achieve sealing, and the protective cap 2 is hard to ensure support). Combined with the axially penetrating easy-tear recess 221 design, it can be implemented. Specifically, when injection is needed, the top cap 23 can be opened, allowing the needle to pass through the plastic sealing plug 1 and enter the vial. Furthermore, after opening the top cap 23, the position of the needle in the vial can be more clearly observed by tearing open the easy-tear recess 221, making the needle insertion operation more efficient. After tearing open the side panel 22 along the easy-tear recess 221, the hard protective cap 2 provides a support point. Since the side panel 22 and the protrusion 21 are connected to the sealing plug 1, the soft sealing plug 1 can be simultaneously disengaged from the vial opening by prying open the hard protective cap 2. This achieves the goal of quick opening without auxiliary tools, thus replacing the traditional aluminum cap + rubber stopper dual-sealing system. This solves the technical problems of existing aluminum covers easily scratching operators and being cumbersome to operate.

[0036] Based on the above embodiments, in one feasible implementation, corresponding to the easy-tear recess 221, the top of the side panel 22 is provided with an easy-tear notch 222. Furthermore, preferably, the inner edge of the bottom of the side panel 22 is provided with multiple locking protrusions 223, each locking protrusion 223 being evenly arranged around the axis of the side panel 22, and the locking protrusions 223 engaging with the outer edge of the bottle opening. In this way, the easy-tear notch 222 in the above embodiment can form a stress concentration guiding area with the easy-tear recess 221 mentioned above. The notch, as the tearing starting point, can reduce the initial tearing resistance by approximately 30%, making the tearing direction more controllable and avoiding the problem of incomplete breakage of the side panel 22 due to force deviation, which is especially suitable for medical personnel with weak hand strength. Simultaneously, the multiple locking protrusions 223 provided at the bottom of the side panel 22 in this embodiment can form a multi-point mechanical interlock with the outer edge of the bottle opening. Compared to the traditional aluminum continuous snap-fit ​​design, the split protrusion reduces the difficulty of supporting the protective cover 2 while ensuring a tight seal, allowing medical staff with weaker hand strength to operate it with one hand.

[0037] In one feasible embodiment, a sealing ring 11 is integrally connected to the side of the sealing plug 1 away from the protrusion 21, and the sealing ring 11 is sealed to the mouth of the vial. Furthermore, the bottom of the protrusion 21 has a through hole 211 for easy needle penetration of the sealing plug 1, so that the integrated sealing ring 11 extending from the sealing plug 1 forms a double sealing interface (sealing plug 1 body + sealing ring 11) along the inner edge of the vial mouth, ensuring a tight seal for the medication inside the vial. Additionally, the above embodiment reduces the needle insertion resistance when piercing the sealing plug 1 by approximately 50% by pre-setting the through hole 211 at the bottom of the protrusion 21. The through hole 211 area can guide the needle insertion path, avoiding the risk of debris shedding caused by random punctures of traditional rubber stoppers.

[0038] In one feasible embodiment, the portion between the two tear-resistant recesses 221 of the side panel 22 is a tear-resistant section, which is separately provided from the protrusion 21. This prevents damage to the sealing cap during the tearing process of the tear-resistant section.

[0039] Based on the above embodiments, in one feasible implementation, the top outer edge of the side panel 22 protrudes away from the axis of the side panel 22, and the bottom inner edge of the top cover 23 protrudes towards the axis of the side panel 22, with the top cover 23 snapped onto the top of the side panel 22. This interlocking snap-fit ​​between the top cover 23 and the side panel 22 achieves a balance between the dustproof protection function of the top cover 23 and its reusable opening characteristic. Simultaneously, the cover can be easily removed by pressing with a single finger, meeting the clinical needs for frequent medication access.

[0040] In summary, compared with existing technologies, by setting up a hardness-graded sealing plug 1 and protective cap 2 structure (the sealing plug 1 provides a soft seal, and the protective cap 2 provides a hard support), combined with the axially penetrating double easy-tear recess 221 and the top easy-tear notch 222 design, a synergistic effect of single-handed controllable tear-off opening and multiple seals is achieved: the easy-tear structure reduces opening resistance, the snap-fit ​​protrusion 223 improves the tolerance compatibility of the bottle mouth, the pre-set through hole 211 reduces the risk of puncture and debris, the split easy-tear part optimizes stress distribution, and the interlocking snap-fit ​​of the top cap 23 achieves a balance between the dustproof protection function and the reusable opening characteristic of the top cap 23. At the same time, the cap can be easily removed by pressing with one finger, meeting the clinical needs of frequent drug access. The entire system uses plastic instead of aluminum, reducing the cost per cap and simplifying the production process. At the same time, the double seal through the sealing ring 11 meets the stability in extreme environments, complies with the regulatory requirements for drug tamper-proofing and traceability, and systematically solves the industry pain points such as the risk of scratches from traditional aluminum caps, the reliance on tools for opening, and leakage during cold chain storage.

[0041] Based on the same inventive concept, this utility model also proposes a vial, which includes the tear-off double cap for vials mentioned above.

[0042] Compared to existing technologies, the vial of this invention has all the advantages of the aforementioned tearable double-body cap for vials, which will not be elaborated here. In addition, the vial body of this invention is made of plastic instead of aluminum, which can reduce the cost of the cap. Moreover, the entire double-body cap can be processed by two-color injection molding, which can ensure the overall airtightness and reliability of the cap while reducing the difficulty of opening the vial, making the improved vial easier to operate.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tear-pull dual body cap for a penicillin bottle, characterized by, The device includes a sealing plug (1) and a protective cap (2). The sealing plug (1) is used to seal the bottle opening. The protective cap (2) includes a protrusion (21), a side wall (22), and a top cap (23). The protrusion (21) protrudes into the vial. The sealing plug (1) is integrally covered around the outer periphery of the protrusion (21). The side of the sealing plug (1) facing away from the protrusion (21) is sealed to the inner edge of the bottle opening. The inner side of the side wall (22) is integrally connected to the edge of the protective cap (2), and the inner edge of the bottom of the side wall (22) is engaged with the outer periphery of the bottle opening. The top cap (23) is placed on top of the side wall (22), and the inner edge of the top cap (23) is engaged with the outer periphery of the top of the side wall (22). The hardness of the side wall (22) and the hardness of the protective cap (2) are both greater than the hardness of the sealing plug (1). The side panel (22) is provided with two adjacent tear-resistant recesses (221). The two tear-resistant recesses (221) are evenly distributed on the outer periphery of the side panel (22) around the axis of the side panel (22), and the length direction of the two tear-resistant recesses (221) is parallel to the axis of the side panel (22). The tear-resistant recesses (221) penetrate the outer periphery of the side panel (22) along the axis of the side panel (22).

2. The tear-open dual body lid for a penicillin bottle according to claim 1, wherein Corresponding to the tear-resistant recess (221), the top of the side panel (22) is provided with a tear-resistant notch (222).

3. The tear-open dual body lid for a penicillin bottle according to claim 2, wherein The inner edge of the bottom of the side panel (22) is provided with a plurality of snap-fit ​​protrusions (223), and each snap-fit ​​protrusion (223) is evenly arranged around the axis of the side panel (22), and the snap-fit ​​protrusion (223) snaps into the outer edge of the bottle mouth.

4. The tear-open dual body lid for a penicillin bottle according to claim 1, wherein The sealing plug (1) is integrally connected to a sealing ring (11) on the side away from the protrusion (21), and the sealing ring (11) is sealed to the mouth of the vial.

5. The tear-open dual body lid for a Schlenk flask according to claim 1, wherein The bottom of the protrusion (21) is provided with a through hole (211) for easy needle to directly puncture the sealing plug (1).

6. The tear-open dual body lid for a vial as defined in claim 1, wherein The area between the two tear-resistant recesses (221) of the side panel (22) is the tear-resistant part, which is separately provided from the protrusion (21).

7. The tear-open dual body lid for a vial as defined in claim 1, wherein The top outer edge of the side panel (22) protrudes away from the axis of the side panel (22), and the bottom inner edge of the top cover (23) protrudes towards the axis of the side panel (22). The top cover (23) is snapped onto the top of the side panel (22).

8. A vial, characterized by, Including the tear-off double cap for vials as described in any one of claims 1 to 7.

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