Infusion bottle combined cover with good sealing effect

Abstract

The utility model discloses a infusion bottle combination cover that good sealing effect, including the cover body, the top of cover body is established with the connecting groove, the inner wall fixed connection of connecting groove has the sealing washer. The utility model relates to the medical packaging technical field, this infusion bottle combination cover that good sealing effect cooperated through first pre -breaks the groove, second pre -breaks the groove, the auxiliary pad and the antiskid groove, realized when pulling the pull ring, prevented the pull ring and appeared the fracture, solved in the actual use process, because when opening the pull ring needs to overcome the strong cohesion between pull ring and cover top one -time, exerted greater tension to the pull ring instantaneously, this made the stress that pull ring bore too concentrated, can make the pull ring fracture in the opening process, lead to unable normal opening bottle cap, once the pull ring is dragged and is broken, not only delays the patient infusion treatment process, but also needs medical staff to change infusion bottle urgently, and then increased the workload and medical consumable cost problem.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical packaging technology, specifically to a combination cap for infusion bottles with good sealing effect. Background Technology

[0002] The infusion bottle cap is a key sealing component of the infusion bottle, mainly used to seal the bottle opening to ensure the safety, stability, and airtightness of the medication during storage, transportation, and use, while also meeting the convenience requirements of clinical operation.

[0003] When using a traditional infusion bottle cap, medical staff open the infusion channel by pulling the ring on the top of the cap;

[0004] However, in actual use, the pull ring needs to overcome the strong adhesive force between the pull ring and the cap in one go when opening it, which requires a large pulling force to be applied to the pull ring instantly. This causes the stress on the pull ring to be too concentrated, which may cause the pull ring to break during the opening process, making it impossible to open the bottle cap normally. Once the pull ring is broken, it will not only delay the patient's infusion treatment process, but also require medical staff to replace the infusion bottle in an emergency, thereby increasing the workload and medical consumable costs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an infusion bottle combination cap with good sealing performance. This solves the problem that in actual use, the pull ring must be opened in one go to overcome the strong adhesive force between the pull ring and the cap top, resulting in a large instantaneous pulling force on the pull ring. This causes excessive stress concentration on the pull ring, which may lead to breakage during opening, making it impossible to open the bottle cap normally. Once the pull ring breaks, it not only delays the patient's infusion treatment but also requires medical staff to urgently replace the infusion bottle, thus increasing workload and medical consumable costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combination cap for an infusion bottle with good sealing performance, comprising a cap body, a connecting groove on the top of the cap body, a sealing gasket fixedly connected to the inner wall of the connecting groove, a pull ring fixedly connected to the top of the sealing gasket, and an anti-breakage structure below the pull ring; the anti-breakage structure includes a first pre-breakage groove, a second pre-breakage groove, an auxiliary pad, and an anti-slip groove; the first pre-breakage groove is located on the top of the sealing gasket near the pull ring and communicates with the inner wall of the connecting groove; the second pre-breakage groove is located on the top of the sealing gasket near the first pre-breakage groove and communicates with the inner wall of the connecting groove; an auxiliary pad is located above the sealing gasket; the outer wall of the auxiliary pad is fixedly connected to the inner wall of the pull ring; and an anti-slip groove is located on the outer wall of the auxiliary pad away from the pull ring.

[0007] Preferably, the sealing gasket has an internal leak-proof structure; the leak-proof structure includes a fixing groove, a fixing ring, a leak-proof plug, and an auxiliary seat; the fixing groove is located on the top of the sealing gasket away from the pull ring, the fixing ring is engaged with the inner wall of the fixing groove, the leak-proof plug is fixedly connected to the inner wall of the fixing ring, the leak-proof plug is inserted into the inner wall of the fixing groove and extends into the interior of the cover, and the auxiliary seat is fixedly connected to the top of the leak-proof plug.

[0008] Preferably, a sealing plug is fixedly connected to the inner wall of the cover, an infusion channel is provided at the top of the sealing plug, a drug delivery channel is provided on the side of the top of the sealing plug away from the infusion channel, the inner wall of the drug delivery channel is sleeved on the outer wall of the leak-proof plug, a rubber stopper is provided below the leak-proof plug, and the inner and outer walls of the rubber stopper are fixedly connected to the inner wall of the drug delivery channel.

[0009] Preferably, a leak-proof pad is inserted into the inner wall of the infusion channel, and the top of the leak-proof pad is fixedly connected to the bottom of the sealing pad.

[0010] Preferably, a limiting groove is formed on the inner wall of the cover, and a sealing ring is fixedly connected to the inner wall of the limiting groove, with the inner wall of the sealing ring sleeved on the outer wall of the sealing plug.

[0011] Preferably, an external thread is provided below the limiting groove, and the external thread is machined on the inner wall of the cover.

[0012] Beneficial effects

[0013] This utility model provides a combination cap for infusion bottles with good sealing performance. It has the following advantages: This combination cap, through the cooperation of a first pre-break groove, a second pre-break groove, an auxiliary pad, and an anti-slip groove, prevents the pull ring from breaking when pulled. This solves the problem that in actual use, the pull ring needs to overcome the strong adhesive force between it and the cap top in one go, applying a large instantaneous pulling force. This causes excessive stress concentration on the pull ring, which may lead to breakage during opening, making it impossible to open the bottle cap normally. If the pull ring breaks, it not only delays the patient's infusion treatment but also requires medical staff to urgently replace the infusion bottle, thus increasing workload and medical consumable costs.

[0014] By combining a fixing groove, a fixing ring, a leak-proof plug, and an auxiliary seat, the medication port is sealed after medication is added. This solves the problem that in actual use, when a needle is inserted into the infusion bottle for medication addition, the infusion bottle may not be used immediately after the needle is removed. As the infusion bottle moves or the internal pressure changes, the medication remaining in the needle hole will slowly seep out, causing not only medication waste but also potential contamination of the operating table or the patient's clothing. More seriously, dust and microorganisms carried by the outside air may directly enter the bottle through the needle hole, adhering to the surface of the medication or suspending in it, thus contaminating the medication. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0016] Figure 2 for Figure 1 A sectional view;

[0017] Figure 3 for Figure 2 Installation diagram;

[0018] Figure 4 for Figure 2 A schematic diagram of the structure of the fixing groove, fixing ring and leak-proof plug;

[0019] Figure 5 for Figure 2 A schematic diagram of the structure of the middle cover, the limiting groove, and the sealing ring.

[0020] In the diagram: 1. Cover; 2. Connecting groove; 3. Sealing gasket; 4. Pull ring; 5. First pre-cut groove; 6. Second pre-cut groove; 7. Auxiliary pad; 8. Anti-slip groove; 9. Fixing groove; 10. Fixing ring; 11. Leak-proof plug; 12. Auxiliary seat; 13. Sealing plug; 14. Infusion channel; 15. Drug delivery channel; 16. Leak-proof pad; 17. Rubber stopper; 18. Limiting groove; 19. Sealing ring; 20. External thread. Detailed Implementation

[0021] 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.

[0022] In actual use, the pull ring needs to overcome the strong adhesive force between the pull ring and the cap in one go when it is opened, which requires a large pulling force to be applied to the pull ring at an instant. This causes the stress on the pull ring to be too concentrated, which may cause the pull ring to break during the opening process, making it impossible to open the bottle cap normally. Once the pull ring is broken, it will not only delay the patient's infusion treatment process, but also require medical staff to replace the infusion bottle in an emergency, thereby increasing the workload and medical consumable costs.

[0023] In view of this, the present invention provides an infusion bottle combination cap with good sealing effect, which solves the problem that in actual use, the pull ring needs to overcome the strong adhesive force between the pull ring and the top of the cap in one go when opening it, which requires a large instantaneous pulling force on the pull ring. This causes the pull ring to be subjected to excessive stress concentration, which may cause the pull ring to break during the opening process, making it impossible to open the bottle cap normally. Once the pull ring is broken, it not only delays the patient's infusion treatment process, but also requires medical staff to replace the infusion bottle in an emergency, thereby increasing the workload and medical consumable costs.

[0024] Example 1, by Figures 1-5 It is known that an infusion bottle combination cap with good sealing effect includes a cap body 1. The top of the cap body 1 is provided with a connecting groove 2. A sealing gasket 3 is fixedly connected to the inner wall of the connecting groove 2. A pull ring 4 is fixedly connected to the top of the sealing gasket 3. An anti-breakage structure is provided below the pull ring 4. The anti-breakage structure includes a first pre-breakage groove 5, a second pre-breakage groove 6, an auxiliary pad 7, and an anti-slip groove 8. The first pre-breakage groove 5 is opened on the top of the sealing gasket 3 near the pull ring 4 and is connected to the inner wall of the connecting groove 2. The second pre-breakage groove 6 is opened on the top of the sealing gasket 3 near the first pre-breakage groove 5 and is connected to the inner wall of the connecting groove 2. An auxiliary pad 7 is provided above the sealing gasket 3. The outer wall of the auxiliary pad 7 is fixedly connected to the inner wall of the pull ring 4. An anti-slip groove 8 is opened on the outer wall of the auxiliary pad 7 away from the pull ring 4.

[0025] In the specific implementation process, it is particularly worth pointing out that the overall structure of the cover body 1 is a stepped cylinder with a slightly narrower top and a slightly wider bottom, and its cross section is similar to a "convex" shape, which can be sleeved on the liquid outlet of an infusion bottle or the liquid outlet of an infusion bag. Its material can be selected as medical-grade polypropylene. The connecting groove 2 is opened at the top of the cover body 1 and is circular. The sealing gasket 3 is integrally in the shape of a circular sheet, and its material can be selected as medical butyl rubber. Its surface is subjected to plasma treatment, which can improve the surface polarity, enhance the thermal bonding strength with the cover body 1, and prevent the sealing gasket 3 from falling off. The pull ring 4 is fixed on the top of the sealing gasket 3 through a base, both of which are made of medical modified polypropylene material, and the connection between the base and the sealing gasket 3 can adopt a rounded chamfer to avoid stress concentration. The first pre-breaking groove 5 is opened at the edge of the sealing gasket 3, with a length of one third of the circumference of the sealing gasket 3, which is similar to a part of a circular ring when viewed from above. Through the thinning design, a mechanical weak point is formed. The second pre-breaking grooves 6 are opened on both sides of the first pre-breaking groove 5, which are similar to a square when viewed from above. The bottom of the sealing gasket 3 is provided with grooves similar to the first pre-breaking groove 5 and the second pre-breaking grooves 6. By providing the "pre-breaking zone" (weak structure) composed of the first pre-breaking groove 5 and the second pre-breaking grooves 6, it is broken before the pull ring 4, releases the internal pressure and reduces the opening resistance, so that the tensile force borne by the pull ring 4 when opening in the "main opening zone" (the area connected to the connecting groove 2 except the first pre-breaking groove 5 and the second pre-breaking grooves 6) is greatly reduced, thereby preventing the pull ring 4 from being pulled off. The auxiliary gasket 7 is integrally similar to an arc-shaped sheet, and its material can be selected as medical-grade polyethylene. The auxiliary gasket 7 can increase the contact area between the finger and the pull ring 4, optimize the force distribution, and the anti-slip groove 8 can further enhance the friction force, control the stress distribution when the pull ring 4 is opened, and prevent the pull ring 4 from breaking. When it is necessary to open the sealing gasket 3, the medical staff inserts a finger into the interior of the pull ring 4, presses the finger pad against the auxiliary gasket 7, exerts force in the direction opposite to the first pre-breaking groove 5, the finger drives the auxiliary gasket 7 to move, the auxiliary gasket 7 drives the pull ring 4 to move, and the pull ring 4 drives the sealing gasket 3 to move. Under the influence of the force, the first pre-breaking groove 5 on the sealing gasket 3 first separates from the inner wall of the connecting groove 2. After the first pre-breaking groove 5 is completely away from the connecting groove 2, the second pre-breaking grooves 6 on the sealing gasket 3 gradually separate from the inner wall of the connecting groove 2. After the second pre-breaking grooves 6 are completely away from the connecting groove 2, at this time, half of the sealing gasket 3 has separated from the inner wall of the connecting groove 2, the stress on the pull ring 4 gradually decreases, and the pull ring 4 is pulled to make the rest of the sealing gasket 3 separate from the connecting groove 2 smoothly, which realizes the reliability and operational convenience of the combined cover for infusion bottles with good sealing effect;

[0026] Furthermore, the sealing gasket 3 has an internal leak-proof structure; the leak-proof structure includes a fixing groove 9, a fixing ring 10, a leak-proof plug 11, and an auxiliary seat 12; the fixing groove 9 is opened on the top of the sealing gasket 3 away from the pull ring 4, the fixing ring 10 is engaged with the inner wall of the fixing groove 9, the leak-proof plug 11 is fixedly connected to the inner wall of the fixing ring 10, the leak-proof plug 11 is inserted into the inner wall of the fixing groove 9 and extends into the interior of the cover body 1, and the auxiliary seat 12 is fixedly connected to the top of the leak-proof plug 11;

[0027] In the specific implementation process, it is worth noting that the fixing groove 9 is circular in shape, and its inner wall is also machined with an annular groove. The annular groove fits tightly with the fixing ring 10 to achieve a snap-fit ​​fixation. The fixing ring 10 has a trapezoidal cross-section, the leak-proof plug 11 is cylindrical in shape, and the top of the auxiliary seat 12 is provided with a circular auxiliary ring to facilitate the removal of the auxiliary seat 12 by medical staff. The materials of the fixing ring 10, the leak-proof plug 11, and the auxiliary seat 12 are exactly the same as those of the sealing gasket 3. Through the cooperation of the fixing groove 9, the fixing ring 10, the leak-proof plug 11, and the auxiliary seat 12, leakage of drugs from the holes left by the drug injection needle is prevented after the injection needle is removed. This design prevents foreign objects from entering the infusion bottle and contaminating the medication. When medication needs to be added to the infusion bottle, medical staff pass the tool through the ring at the top of the auxiliary seat 12 and pull the auxiliary seat 12 away from the sealing gasket 3. The auxiliary seat 12 moves the anti-leak plug 11, which in turn moves the fixing ring 10. The fixing ring 10 gradually moves away from the fixing groove 9 through deformation until the anti-leak plug 11 is completely away from the fixing groove 9. Medical staff then begin adding medication. After adding medication, the above steps are reversed to restore the initial position. This design improves the sealing performance of the infusion bottle combination cap.

[0028] Furthermore, a sealing plug 13 is fixedly connected to the inner wall of the cover 1. An infusion channel 14 is provided on the top of the sealing plug 13. A drug delivery channel 15 is provided on the side of the top of the sealing plug 13 away from the infusion channel 14. The inner wall of the drug delivery channel 15 is sleeved on the outer wall of the leak-proof plug 11. A rubber stopper 17 is provided below the leak-proof plug 11. The inner and outer walls of the rubber stopper 17 are fixedly connected to the inner wall of the drug delivery channel 15.

[0029] In the specific implementation process, it is worth noting that the sealing plug 13 is a stepped cylindrical shape with a cross-section similar to a 'T'. Its material can be medical-grade silicone rubber. There is an annular protrusion on the lower part of its outer wall. When the sealing plug 13 enters the inner wall of the infusion bottle mouth, the protrusion can enhance the sealing effect. The infusion channel 14 is used to connect to the external infusion pipeline. It is rectangular in shape with a large diameter. The drug addition channel 15 is used to add drugs into the infusion bottle. Its cross-section is similar to a 'T', wider at the top and narrower at the bottom. The rubber stopper 17 is cylindrical in shape. There is a conical groove in the center of its top to facilitate the drug addition operation by medical staff. Its material can be medical-grade polyisoprene rubber. After puncture, the needle hole can close quickly to reduce drug leakage. It can also achieve antibacterial function by adding antibacterial agents to reduce the risk of microbial contamination. This improves the sealing performance and safety of the infusion bottle combination cap with good sealing effect.

[0030] Example 2, by Figures 1-5 It can be seen that a leak-proof pad 16 is inserted into the inner wall of the infusion channel 14, and the top of the leak-proof pad 16 is fixedly connected to the bottom of the sealing pad 3.

[0031] In the specific implementation process, it is worth noting that the cross-section of the leak-proof pad 16 is similar to a 'T' shape, which fits tightly against the inner wall of the infusion channel 14. During the drug addition operation, it prevents the drug from leaking from the gap between the infusion channel and the sealing pad 3, thereby improving the leak-proofness and reliability of the infusion bottle combination cap with good sealing effect.

[0032] Furthermore, a limiting groove 18 is formed on the inner wall of the cover 1, and a sealing ring 19 is fixedly connected to the inner wall of the limiting groove 18. The inner wall of the sealing ring 19 is sleeved on the outer wall of the sealing plug 13.

[0033] In the specific implementation process, it is worth noting that the limiting groove 18 is set below the inner wall of the cover 1 to accommodate the sealing ring 19. The material of the sealing ring 19 can be EPDM rubber. The sealing ring 19 fits tightly with the outer wall of the infusion bottle mouth, thereby enhancing the overall sealing performance of the cover 1 and the bottle mouth.

[0034] Furthermore, an external thread 20 is provided below the limiting groove 18, and the external thread 20 is machined on the inner wall of the cover body 1;

[0035] In the specific implementation process, it is worth noting that the external thread 20 is matched with the internal thread of the infusion bottle mouth to realize the fixed installation of the combination cap, thereby improving the ease of installation of the infusion bottle combination cap with good sealing effect.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combination cap for an infusion bottle with good sealing effect, comprising a cap body (1), characterized in that: The top of the cover (1) is provided with a connecting groove (2), and a sealing gasket (3) is fixedly connected to the inner wall of the connecting groove (2). A pull ring (4) is fixedly connected to the top of the sealing gasket (3), and an anti-breakage structure is provided below the pull ring (4). The anti-breakage structure includes a first pre-breakage groove (5), a second pre-breakage groove (6), an auxiliary pad (7), and an anti-slip groove (8); The first pre-break groove (5) is opened on the top of the sealing gasket (3) near the pull ring (4) and is connected to the inner wall of the connecting groove (2). The top of the sealing gasket (3) near the first pre-break groove (5) is provided with a second pre-break groove (6) and is connected to the inner wall of the connecting groove (2). An auxiliary pad (7) is provided above the sealing gasket (3). The outer wall of the auxiliary pad (7) is fixedly connected to the inner wall of the pull ring (4). An anti-slip groove (8) is provided on the outer wall of the auxiliary pad (7) away from the pull ring (4).

2. The infusion bottle combination cap with good sealing effect according to claim 1, characterized in that: The sealing gasket (3) has a leak-proof structure inside; The leak-proof structure includes a fixing groove (9), a fixing ring (10), a leak-proof plug (11), and an auxiliary seat (12); The fixing groove (9) is opened on the top of the sealing gasket (3) away from the pull ring (4). The inner wall of the fixing groove (9) is fitted with a fixing ring (10). The inner wall of the fixing ring (10) is fixedly connected with a leak-proof plug (11). The leak-proof plug (11) is inserted into the inner wall of the fixing groove (9) and extends into the interior of the cover (1). The top of the leak-proof plug (11) is fixedly connected with an auxiliary seat (12).

3. The infusion bottle combination cap with good sealing effect according to claim 2, characterized in that: A sealing plug (13) is fixedly connected to the inner wall of the cover (1). An infusion channel (14) is provided at the top of the sealing plug (13). A drug delivery channel (15) is provided on the side of the top of the sealing plug (13) away from the infusion channel (14). The inner wall of the drug delivery channel (15) is sleeved on the outer wall of the leak-proof plug (11). A rubber stopper (17) is provided below the leak-proof plug (11). The inner and outer walls of the rubber stopper (17) are fixedly connected to the inner wall of the drug delivery channel (15).

4. The infusion bottle combination cap with good sealing effect according to claim 3, characterized in that: The inner wall of the infusion channel (14) is fitted with a leak-proof pad (16), and the top of the leak-proof pad (16) is fixedly connected to the bottom of the sealing pad (3).

5. The infusion bottle combination cap with good sealing effect according to claim 3, characterized in that: The inner wall of the cover (1) has a limiting groove (18), and a sealing ring (19) is fixedly connected to the inner wall of the limiting groove (18). The inner wall of the sealing ring (19) is sleeved on the outer wall of the sealing plug (13).

6. The infusion bottle combination cap with good sealing effect according to claim 5, characterized in that: The limiting groove (18) is provided with an external thread (20) below it, and the external thread (20) is machined on the inner wall of the cover (1).

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