Leakage-proof and pollution-proof infusion container composite sealing interface structure

By designing a leak-proof and contamination-proof composite sealing interface structure for infusion containers, and utilizing the automatic reset function of the sealing protective sleeve and sealing block, the problems of drug leakage and injection hole contamination are solved, achieving both sealing and hygiene in the infusion process.

CN224251870UActive Publication Date: 2026-05-19LONG SHENG JIANGSU PHARMA PACKAGING MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LONG SHENG JIANGSU PHARMA PACKAGING MATERIAL CO LTD
Filing Date
2025-03-21
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing infusion bottles are prone to drug leakage and contamination of the injection port during use, leading to inconvenience and hygiene problems.

Method used

A composite sealing interface structure for infusion containers that is leak-proof and contamination-proof is designed, including a sealing protective sleeve, a sealing block, and a cotton ball. The sealing block is automatically reset and blocked by rotating the adjusting shaft and the torsion spring to prevent drug leakage and contamination.

Benefits of technology

It effectively prevents drug leakage and injection hole contamination, ensures sealing and hygiene, and is simple and convenient to operate, meeting the usage requirements of infusion containers.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224251870U_ABST
Patent Text Reader

Abstract

The utility model discloses an anti-leakage and anti-pollution infusion container composite sealing connector structure which comprises an infusion bottle and a sealing rubber plug installed inside a bottle opening of the infusion bottle, a sealing protection sleeve is fixedly installed at the bottle opening of the infusion bottle, and two penetrating holes used for infusion and medicine adding are formed in the bottom of the sealing protection sleeve. Mounting grooves located below the sealing rubber plug are formed in the tops of the two penetrating holes correspondingly, sealing check blocks used for shielding the tops of the penetrating holes are slidably mounted in the two mounting grooves correspondingly, liquid suction grooves are formed in the tops of the two sealing check blocks correspondingly, and cotton balls making contact with the sealing rubber plug and used for absorbing leaked liquid medicine are mounted in the two liquid suction grooves correspondingly; the leakage-proof and pollution-proof infusion container composite sealing connector structure is provided with the sealing and shielding structure, the sealing and shielding structure has an automatic reset function, the sealing and shielding structure can be automatically reset, shielded and sealed after an injector is pulled out after medicine adding is completed, and the problems of medicine leakage and injection hole pollution are effectively avoided.
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Description

Technical Field

[0001] This utility model belongs to the field of infusion bottle technology, specifically a composite sealing interface structure for an infusion container that is leak-proof and pollution-proof. Background Technology

[0002] An infusion bottle is a medical device used for intravenous infusion. It is usually made of sterile glass or plastic and its main function is to store liquid drugs, nutritional solutions, or saline to meet the treatment needs of patients. An infusion bottle usually consists of a bottle body, a bottle neck, a valve, and a tubing. The liquid inside the bottle is delivered to the patient's body through the tubing. Infusion bottles are widely used in hospitals, clinics, and other medical facilities and are an important tool for patients to receive intravenous infusions, fluid replacement, and drug therapy.

[0003] Currently, the sealing rubber stopper of an infusion bottle is directly exposed during infusion. When medication needs to be added, a syringe is used to inject the medication directly through the sealing rubber stopper. After injection, the syringe is pulled out, leaving a hole in the sealing rubber stopper. The medication inside can slowly leak through the hole, and the exposed hole is also prone to contamination. Furthermore, disinfection is required before adding medication again. Therefore, improvements are needed to address these issues. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof and pollution-proof composite sealing interface structure for an infusion container, comprising an infusion bottle and a sealing plug installed inside the bottle opening. A sealing protective sleeve is fixedly installed at the bottle opening of the infusion bottle. The sealing protective sleeve has a cylindrical concave structure. Two perforations for infusion and medication are opened at the bottom of the sealing protective sleeve. An installation groove is opened at the top of each of the two perforations, located below the sealing plug. A sealing block for blocking the top of the perforation is slidably installed inside each of the two installation grooves. A liquid absorption groove is opened at the top of each of the two sealing blocks. A cotton ball that contacts the sealing plug and is used to absorb leaked medication is installed inside each of the two liquid absorption grooves.

[0005] Preferably, the sealing protective sleeve has two L-shaped inner cavities. The opposite ends of the bottom of the two L-shaped inner cavities are respectively connected to two mounting grooves. An adjusting shaft is rotatably installed inside each of the two L-shaped inner cavities. A rotating block is fixedly installed on the lower part of the two adjusting shafts. A connecting rod is fixedly installed on one side of each rotating block. The ends of the two connecting rods away from the rotating blocks are respectively fixedly connected to two sealing blocks. A torsion spring is sleeved on the upper part of each of the two adjusting shafts. The two ends of the torsion spring are respectively fixedly connected to the top of the rotating block and the top of the L-shaped inner cavity.

[0006] Preferably, the bottom of the sealing protective sleeve has an arc-shaped groove located directly below the two L-shaped inner cavities, and the bottom of the two adjusting shafts extends into the interior of the two arc-shaped grooves and is fixedly installed with a rotating wheel, so that the sealing block can be effectively rotated and adjusted to use the perforation for infusion or drug administration.

[0007] Preferably, a rubber sheet is fixedly installed at the bottom of each of the two sealing blocks, located at the top of the perforation. The diameter of the rubber sheet is larger than the diameter of the perforation, and the rubber sheet acts as a barrier at the top of the perforation to enhance the sealing effect.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This leak-proof and pollution-proof infusion container composite sealing interface structure has a sealing shielding structure with an automatic reset function. It can automatically reset and seal after the syringe is pulled out after drug addition, effectively avoiding the problems of drug leakage and injection hole contamination. At the same time, the sealing shielding structure is simple in design, convenient to use and operate, and has stable and reliable sealing and protection. Its performance can meet the usage requirements of infusion containers.

[0009] When the perforation is needed for infusion or medication administration, the vertical groove rotates the roller, which in turn rotates the adjusting shaft. This rotation, in turn, rotates the rotating block, tightening the torsion spring. Simultaneously, the rotating block rotates the connecting rod and the sealing block, removing the sealing block from the top of the perforation. At this point, the perforation can be used for infusion or medication administration. After medication administration using a syringe is completed and the syringe is removed, the roller is released. The elastic restoring force of the torsion spring causes the adjusting shaft and rotating block to rotate back. This rotation causes the connecting rod and the sealing block to move back, moving the sealing block to the top of the perforation to provide a seal and prevent leakage and contamination. Simultaneously, the return of the sealing block causes a cotton ball to create a vacuum seal on the sealing stopper, absorbing any leaked medication. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0011] In the attached diagram:

[0012] Figure 1 This is a cross-sectional schematic diagram of the composite sealing interface structure of the leak-proof and pollution-proof infusion container of this utility model;

[0013] Figure 2 This utility model Figure 1 A partial structural diagram;

[0014] Figure 3This utility model Figure 2 A partial structural diagram;

[0015] In the diagram: 1. Infusion bottle; 2. Sealing stopper; 3. Sealing protective sleeve; 4. Perforation; 5. Mounting groove; 6. Sealing block; 7. Suction groove; 8. Cotton ball; 9. L-shaped inner cavity; 10. Adjusting shaft; 11. Rotating block; 12. Connecting rod; 13. Torsion spring; 14. Arc-shaped groove; 15. Rotating wheel; 16. Rubber sheet. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Depend on Figures 1 to 3 The present invention includes an infusion bottle 1 and a sealing plug 2 installed inside the bottle opening of the infusion bottle 1. A sealing protective sleeve 3 is fixedly installed at the bottle opening of the infusion bottle 1. The sealing protective sleeve 3 has a cylindrical concave structure. Two perforations 4 for infusion and medication are opened at the bottom of the sealing protective sleeve 3. The top of each of the two perforations 4 has an installation groove 5 located below the sealing plug 2. A sealing block 6 for blocking the top of the perforation 4 is slidably installed inside each of the two installation grooves 5. The top of each of the two sealing blocks 6 has a liquid absorption function. The two liquid absorption tanks 7 are each equipped with cotton balls 8 that come into contact with the sealing rubber plugs 2 and are used to absorb the leaked medicine. The bottom of the two sealing blocks 6 is fixedly equipped with rubber sheets 16 located at the top of the perforation 4. The diameter of the rubber sheet 16 is larger than the diameter of the perforation 4. The rubber sheet 16 covers the top of the perforation 4 and plays a role in strengthening the seal. The rubber sheet 16 can effectively seal the gap between the sealing block 6 and the perforation 4, thereby improving the performance of preventing leakage and pollution.

[0018] The sealing protective sleeve 3 has two L-shaped inner cavities 9. The opposite ends of the bottom of the two L-shaped inner cavities 9 are respectively connected to two mounting grooves 5. An adjusting shaft 10 is rotatably installed inside each of the two L-shaped inner cavities 9. A rotating block 11 is fixedly installed on the lower part of the two adjusting shafts 10. A connecting rod 12 is fixedly installed on one side of each rotating block 11. The ends of the two connecting rods 12 away from the rotating block 11 are respectively fixedly connected to two sealing blocks 6. A torsion spring 13 is sleeved on the upper part of each of the two adjusting shafts 10. The ends are fixedly connected to the top of the rotating block 11 and the top of the L-shaped inner cavity 9 respectively. The bottom of the sealing protective sleeve 3 is provided with an arc-shaped groove 14 located directly below the two L-shaped inner cavities 9. The bottom of the two adjusting shafts 10 extends into the interior of the two arc-shaped grooves 14 respectively and is fixedly installed with a rotating wheel 15. The circumferential surface of the rotating wheel 15 is provided with vertical grooves at equal intervals to increase friction. The vertical grooves are not shown in the attached figure, so that the sealing block 6 can be effectively rotated and adjusted, and the perforation 4 can be used for infusion or drug addition operations.

[0019] Specifically, when it is necessary to use the perforation 4 for infusion or medication administration, the rotating wheel 15 is rotated through the vertical groove. The rotation of the rotating wheel 15 will drive the adjusting shaft 10 to rotate. The rotation of the adjusting shaft 10 will drive the rotating block 11 to rotate and tighten the torsion spring 13. At the same time, the rotation of the rotating block 11 will drive the connecting rod 12 and the sealing block 6 to rotate, thereby removing the sealing block 6 from the top of the perforation 4. At this time, the perforation 4 can be used for infusion or medication administration.

[0020] After the syringe is used to add the medicine and is removed, the rotating wheel 15 is released. The elastic restoring force of the torsion spring 13 will cause the adjusting shaft 10 and the rotating block 11 to rotate. The rotation of the rotating block 11 will drive the connecting rod 12 and the sealing block 6 to move back, so that the sealing block 6 moves to the top of the perforation 4 to block and seal, thus providing protection against leakage and contamination. At the same time, the movement of the sealing block 6 will cause the cotton ball 8 to block the vacuum on the sealing rubber stopper 2, so that it can absorb the leaked medicine.

[0021] This leak-proof and contamination-proof infusion container features a composite sealing interface structure with a sealing shielding structure that has an automatic reset function. This structure automatically resets and seals after the syringe is removed after medication administration, effectively preventing drug leakage and injection hole contamination. Furthermore, the sealing shielding structure is simple in design, convenient to use and operate, and provides stable and reliable sealing and protection. Its performance meets the requirements for infusion container use.

Claims

1. A leak-proof and contamination-proof composite sealing interface structure for an infusion container, comprising an infusion bottle (1) and a sealing rubber stopper (2) installed inside the mouth of the infusion bottle (1), characterized in that: A sealing protective sleeve (3) is fixedly installed at the mouth of the infusion bottle (1). The sealing protective sleeve (3) has a cylindrical concave structure. Two perforations (4) for infusion and drug administration are opened at the bottom of the sealing protective sleeve (3). An installation groove (5) located below the sealing rubber stopper (2) is opened at the top of each of the two perforations (4). A sealing block (6) for blocking the top of the perforation (4) is slidably installed inside the two installation grooves (5). A liquid absorption groove (7) is opened at the top of each of the two sealing blocks (6). A cotton ball (8) that contacts the sealing rubber stopper (2) and is used to absorb the leaked drug solution is installed inside the two liquid absorption grooves (7).

2. The leak-proof and contamination-proof composite sealing interface structure for an infusion container according to claim 1, characterized in that: The sealing protective sleeve (3) has two L-shaped inner cavities (9) inside. The opposite ends of the bottom of the two L-shaped inner cavities (9) are respectively connected to two mounting grooves (5). An adjusting shaft (10) is rotatably installed inside the two L-shaped inner cavities (9). A rotating block (11) is fixedly installed on the lower part of the two adjusting shafts (10). A connecting rod (12) is fixedly installed on one side of the rotating block (11). The ends of the two connecting rods (12) away from the rotating block (11) are respectively fixedly connected to two sealing blocks (6). A torsion spring (13) is sleeved on the upper part of the two adjusting shafts (10). The two ends of the torsion spring (13) are respectively fixedly connected to the top of the rotating block (11) and the top of the L-shaped inner cavity (9).

3. The leak-proof and contamination-proof composite sealing interface structure for an infusion container according to claim 2, characterized in that: The bottom of the sealing protective sleeve (3) is provided with an arc-shaped groove (14) located directly below the two L-shaped inner cavities (9), and the bottom of the two adjusting shafts (10) extends into the interior of the two arc-shaped grooves (14) and is fixedly installed with a rotating wheel (15).

4. The leak-proof and contamination-proof composite sealing interface structure for an infusion container according to claim 1, characterized in that: Both sealing blocks (6) have a rubber sheet (16) fixedly installed at the bottom of the perforation (4) at the top. The diameter of the rubber sheet (16) is larger than the diameter of the perforation (4). The rubber sheet (16) covers the top of the perforation (4) and plays a role in strengthening the seal.