Convenient unsealing and secondary sealing tool for sealing bag

By designing an open structure, zipper, and locking buckle in the self-sealing bag, combined with multi-layer composite film material, the problem of reduced sealing performance caused by repeated use of self-sealing bags is solved, achieving both sealing stability and convenience, and extending service life.

CN223546782UActive Publication Date: 2025-11-14TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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Patent Information

Application Number
CN202423222495.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-11-14
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

Existing self-sealing bags suffer from reduced sealing performance due to repeated use in the medical field.

Method used

A tool for easy opening and resealing of sealed bags has been designed, including an open structure design, a zipper, a limiting buckle, and a discharge tube. It uses multi-layer composite film material, and ensures sealing and convenience through the tight closure of the zipper and the binding of the limiting rope.

Benefits of technology

It improves the reusability and extends the service life of the sealed bags, ensures the stability and durability of the seal, and provides a more reliable and convenient material storage and transportation solution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging bags, in particular to a convenient unsealing and secondary sealing tool for a sealing bag, and adopts the technical scheme that the convenient unsealing and secondary sealing tool comprises a bag body, one end of the bag body adopts an open structure design and is provided with a clamping chain, and the other end of the bag body is provided with a hole and is embedded with a discharge pipe; a first limiting buckle and a second limiting buckle are fixedly installed on the upper end face and the lower end face of the bag body respectively, and a limiting rope is bound to the opposite sides of the first limiting buckle and the second limiting buckle. By means of the innovative clamping chain design, the enhanced fixing and protecting mechanism, the convenient discharging and resealing mode and the durable material and design, the repeated utilization rate of the sealing bag is remarkably increased, the service life is prolonged, and meanwhile the sealing effect is improved. Due to the design, the problem that the sealing performance is reduced due to repeated use of the self-sealing bag in the medical field is effectively solved, and a more reliable and convenient solution is provided for material storage and transportation in the medical field.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, specifically to a tool for easy opening and secondary sealing of sealed bags. Background Technology

[0002] In the medical industry, self-sealing bags are primarily used in aseptic packaging for medical devices and supplies that require sterility, such as surgical instruments, artificial organs, and interventional medical devices. Additionally, self-sealing bags can be used for pharmaceutical packaging and sealing laboratory samples to ensure product safety and hygiene and prevent contamination. Medical self-sealing bags are designed for quick and effective sealing without the need for specialized equipment. They are easy to tear, non-stick, and lint-free, and offer features such as color-changing indicators and explosion-proof edges, effectively extending the shelf life of sterilized items.

[0003] Extensive searches revealed CN221115097U, which discloses a plastic self-sealing bag, comprising a self-sealing bag body; a sealing female clip is horizontally fixedly connected to the inner wall of the self-sealing bag body, and a sealing male clip is fixedly connected to the inner wall of the self-sealing bag body, the sealing female clip and the sealing male clip are opposite to each other, and a disassembly strap is fixedly connected to one side of the sealing female clip and the sealing male clip, the disassembly strap being located on the outer wall of the self-sealing bag body.

[0004] In existing technologies, self-sealing bags can be used by pulling two release straps from the outside of the bag body without pulling the bag body itself. However, in the medical field, because the inlet and outlet of the self-sealing bag are located on the same side, the sealing position will become fatigued and the sealing performance will decrease after repeated use. To solve this problem, a convenient opening and resealing tool for sealing bags is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a convenient tool for opening and resealing sealed bags, which has the advantages of improving the reusability and extending the service life of sealed bags, and solves the problem of reduced sealing performance of self-sealing bags due to repeated use in the medical field.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tool for convenient opening and secondary sealing of a sealed bag, comprising a bag body, one end of which adopts an open structure design and is provided with a zipper, and the other end of which has an opening and is fitted with a discharge pipe, and a first limiting buckle and a second limiting buckle are respectively fixedly installed on the upper and lower ends of the bag body, and a limiting rope is tied to the opposite side of the first limiting buckle and the second limiting buckle.

[0007] Preferably, a handle is fixedly installed on the lower end face of the bag body. The handle is ergonomically designed in an arc shape, and the handle is connected to the bag body via a heat fusion process. This heat fusion connection method provides high strength and durability, ensuring that the handle will not detach or be damaged during use.

[0008] Preferably, both the first and second limiting buckles are made of plastic and are integrally molded with the bag body using an injection molding process. The use of the same plastic material for both the limiting buckles and the bag body, and their integral molding process, ensures the uniformity and stability of the overall structure.

[0009] Injection molding is an efficient and low-cost manufacturing method that can quickly produce a large number of limit buckles, reducing production costs.

[0010] Preferably, the limiting rope is made of elastic band material, and both ends of the limiting rope are provided with elastic rubber rings. The two ends of the limiting rope are respectively fitted onto the first limiting buckle and the second limiting buckle through the elastic rubber rings. In this design, the elastic rubber rings on the limiting rope can be firmly fitted onto the limiting buckles, ensuring that the limiting rope will not fall off or loosen during use.

[0011] Preferably, the bag has two sets of zippers, both made of soft plastic and of matching dimensions, which close the open end of the bag. This two-set zipper design provides a stronger seal, effectively preventing the intrusion of air, moisture, and microorganisms, keeping the contents dry and hygienic.

[0012] The zipper is easy and quick to open and close; users can do so with just a light press or pull.

[0013] Preferably, the discharge tube is embedded into the opening at the other end of the bag body via a heat-fusion connection. The discharge tube is made of medical-grade plastic, and a sealing cap, also made of medical-grade plastic, is provided at the end of the discharge tube. The heat-fusion connection between the discharge tube and the bag body ensures a strong and airtight connection.

[0014] Both the discharge pipe and the sealing cap are made of medical-grade plastic, which meets the hygiene and safety standards of the medical industry and will not contaminate the items inside the bag.

[0015] Users can easily discharge the material inside the bag by opening the sealed cap, improving ease of use.

[0016] Preferably, the main material of the bag adopts a multi-layer composite membrane structure design, including an inner layer of PE material, a middle layer of EVOH material, and an outer layer of PA material. This multi-layer composite membrane structure design effectively blocks the intrusion of air, moisture, and microorganisms, keeping the items inside the bag dry and hygienic.

[0017] Materials such as PE, EVOH, and PA have good toughness and wear resistance, which can resist external impact and wear, and extend the service life of the bag.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention features an open design with a zipper at one end of the bag, allowing users to easily open and close the bag while the tight closure of the zipper ensures a secure seal. The other end of the bag has an opening with an embedded discharge pipe, allowing users to easily discharge the material inside by opening the sealing cap. After discharge, the sealing cap can be replaced and the bag resealed using the zipper, ensuring the bag's airtightness remains intact. This design avoids the aging, deformation, or damage to the sealing strip caused by repeated use of traditional self-sealing bags, thus improving the stability and durability of the seal.

[0020] The bag is secured with a first and a second limiting buckle fixed to its upper and lower surfaces, respectively, and bound with a limiting rope. This design not only provides additional fixation to prevent the bag from accidentally opening during handling or storage, but also protects the zipper from external impacts to a certain extent, reducing the decrease in sealing performance caused by external forces.

[0021] In summary, the convenient opening and resealing tool for resealable bags provided by this utility model significantly improves the reusability and extends the service life of resealable bags through its innovative zipper design, enhanced fixing and protection mechanisms, convenient discharge and resealing methods, and durable materials and design. At the same time, these designs effectively solve the problem of reduced sealing performance of self-sealing bags due to repeated use in the medical field, providing a more reliable and convenient solution for the storage and transportation of materials in the medical field. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the present invention after storage;

[0024] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 4 For the present utility model Figure 3A magnified structural diagram.

[0026] In the diagram: 1. Bag body; 2. Sealing cap; 21. Discharge pipe; 3. First limit buckle; 4. Limiting rope; 5. Second limit buckle; 6. Handle; 7. Chain. 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

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, one embodiment of this utility model provides a convenient opening and secondary sealing tool for a sealed bag, including a bag body 1. One end of the bag body 1 adopts an open structure design and is provided with a zipper 7. The other end of the bag body 1 has an opening and a discharge pipe 21 is embedded therein. The upper end face and the lower end face of the bag body 1 are respectively fixedly installed with a first limiting buckle 3 and a second limiting buckle 5. A limiting rope 4 is tied to the opposite side of the first limiting buckle 3 and the second limiting buckle 5.

[0030] Specifically, by adopting an open structure design with a zipper 7 at one end of the bag body 1, users can easily open and close the bag opening, while the tight closure design of the zipper 7 ensures the airtightness of the bag body 1. The other end of the bag body 1 has an opening and a discharge pipe 21 is embedded therein, allowing users to easily discharge the material inside the bag by opening the sealing cap 2. After discharge, the sealing cap 2 can be replaced and resealed using the zipper 7, ensuring that the airtightness of the bag body 1 remains unaffected. This design avoids the aging, deformation, or damage of the sealing strip caused by repeated use of traditional self-sealing bags, thereby improving the stability and durability of the seal.

[0031] The bag body 1 is secured with a first limiting buckle 3 and a second limiting buckle 5 fixedly installed on its upper and lower ends, respectively, and bound with a limiting rope 4. This design not only provides additional fixation to prevent the bag body 1 from accidentally opening during handling or storage, but also protects the zipper 7 from external impacts to a certain extent, reducing the decrease in sealing performance caused by external forces.

[0032] In summary, the convenient opening and resealing tool for resealable bags provided by this utility model significantly improves the reusability and extends the service life of resealable bags through its innovative zipper 7 design, enhanced fixing and protection mechanism, convenient discharge and resealing method, and durable materials and design. At the same time, these designs effectively solve the problem of reduced sealing performance of self-sealing bags due to repeated use in the medical field, providing a more reliable and convenient solution for the storage and transportation of materials in the medical field.

[0033] Example 2

[0034] To improve the sealing performance of the bag during use, such as Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, a handle 6 is fixedly installed on the lower end face of the bag body 1. The handle 6 is designed with an ergonomic arc shape, and the handle 6 is connected to the bag body 1 by a heat fusion process. In this design, the handle 6 and the bag body 1 are connected by a heat fusion process. This connection method has high strength and durability, ensuring that the handle 6 will not fall off or be damaged during use.

[0035] Furthermore, both the first limiting buckle 3 and the second limiting buckle 5 are made of plastic and are integrally molded with the bag body 1 through injection molding. The design uses the same plastic material for the limiting buckles and the bag body 1, and is integrally molded through injection molding, ensuring the uniformity and stability of the overall structure.

[0036] Injection molding is an efficient and low-cost manufacturing method that can quickly produce a large number of limit buckles, reducing production costs.

[0037] Furthermore, the limiting rope 4 is made of elastic band material, and both ends of the limiting rope 4 are equipped with elastic rubber rings. The two ends of the limiting rope 4 are respectively fitted onto the first limiting buckle 3 and the second limiting buckle 5 through the elastic rubber rings. In this design, the elastic rubber rings on the limiting rope 4 can be firmly fitted onto the limiting buckles, ensuring that the limiting rope 4 will not fall off or loosen during use.

[0038] Furthermore, there are two sets of zippers 7, both made of soft plastic and of matching size. The open end of the bag body 1 is closed by the two sets of zippers 7. The design of two sets of zippers 7 provides stronger sealing, effectively preventing the intrusion of air, moisture and microorganisms, and keeping the items inside the bag dry and hygienic.

[0039] The opening and closing of the zipper 7 is simple and quick; users can complete the operation with just a light press or pull.

[0040] Example 3

[0041] To improve the convenience of material discharge from the bag, such as Figure 3As shown, in this embodiment, the discharge tube 21 is embedded in the opening at the other end of the bag body 1 by heat fusion connection. The discharge tube 21 is made of medical-grade plastic, and a sealing cap 2 is provided at the end of the discharge tube 21. The sealing cap 2 is also made of medical-grade plastic. In this design, the discharge tube 21 is connected to the bag body 1 by heat fusion connection, ensuring the connection is firm and airtight.

[0042] Both the discharge pipe 21 and the sealing cap 2 are made of medical-grade plastic, which meets the hygiene and safety standards of the medical industry and will not contaminate the items inside the bag.

[0043] Users can easily discharge the material inside the bag by opening the sealing cap 2, which improves the ease of use.

[0044] Furthermore, the main material of bag 1 adopts a multi-layer composite membrane structure design, including an inner layer of PE material, a middle layer of EVOH material, and an outer layer of PA material. This multi-layer composite membrane structure effectively blocks the intrusion of air, moisture, and microorganisms, keeping the items inside the bag dry and hygienic.

[0045] Materials such as PE, EVOH, and PA have good toughness and wear resistance, which can resist external impact and wear, and extend the service life of the bag body 1.

[0046] In use, the item is placed into the bag 1 through its open end. The open end of the bag 1 is then closed using two sets of zippers 7, ensuring that the zippers 7 are tightly aligned and securely locked to maintain the airtightness of the bag 1. This end is then wound up. Next, one end of the limiting rope 4 is fitted onto the first limiting buckle 3 via an elastic rubber ring, and the other end of the limiting rope 4 is fitted onto the second limiting buckle 5 via an elastic rubber ring. This further ensures that the open end of the bag 1 will not accidentally unfold, enhancing the sealing effect. The sealing cover 2 can be opened when needed. Materials are discharged through the discharge pipe 21. After discharge, the sealing cap 2 is replaced to maintain the airtightness of the bag body 1. When it is necessary to open the bag body 1 and refill it with items, the limiting rope 4 can be released and the clamp 7 can be opened to add or replace items. After adding, the clamp 7 is used to seal again, and the above steps of using the limiting rope 4 for additional fixation are repeated. This can ensure the reusability of the bag body 1 and extend its service life, while solving the problem of reduced airtightness of self-sealing bags used in the medical field due to repeated use.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tool for easy opening and resealing of a sealed bag, comprising a bag body (1), wherein one end of the bag body (1) is designed with an open structure and is provided with a zipper (7), and the other end of the bag body (1) has an opening and is fitted with a discharge pipe (21), characterized in that: The bag body (1) is fixedly installed with a first limiting buckle (3) and a second limiting buckle (5) on its upper and lower ends respectively, and a limiting rope (4) is tied to the opposite side of the first limiting buckle (3) and the second limiting buckle (5).

2. The convenient opening and resealing tool for sealed bags according to claim 1, characterized in that, A handle (6) is fixedly installed on the lower end face of the bag body (1). The handle (6) is designed in an ergonomic arc shape. The handle (6) is connected to the bag body (1) by a heat fusion process.

3. The convenient opening and resealing tool for sealed bags according to claim 1, characterized in that, The first limiting buckle (3) and the second limiting buckle (5) are both made of plastic and are integrally formed with the bag body (1) through injection molding process.

4. The convenient opening and resealing tool for sealed bags according to claim 1, characterized in that, The limiting rope (4) is made of elastic band material. Both ends of the limiting rope (4) are provided with elastic rubber rings. The two ends of the limiting rope (4) are respectively fitted onto the first limiting buckle (3) and the second limiting buckle (5) through the elastic rubber rings.

5. The convenient opening and resealing tool for sealed bags according to claim 1, characterized in that, The number of the zippers (7) is two sets. Both sets of zippers (7) are made of soft plastic and are matched in size. The open end of the bag body (1) is closed by the two sets of zippers (7).

6. The convenient opening and resealing tool for sealed bags according to claim 1, characterized in that, The discharge tube (21) is embedded in the opening at the other end of the bag body (1) by heat fusion connection. The discharge tube (21) is made of medical grade plastic material. The end of the discharge tube (21) is equipped with a sealing cap (2), which is also made of medical grade plastic material.

7. The convenient opening and resealing tool for sealed bags according to claim 1, characterized in that, The main material of the bag body (1) adopts a multi-layer composite membrane structure design, including an inner layer of PE material, a middle layer of EVOH material and an outer layer of PA material.

Citation Information

Patent Citations

  • Plastic self-sealing bag

    CN221115097U