Leak-proof and easy-to-fill enteral nutrition bags

Abstract

This utility model relates to the field of medical and nursing device technology, and discloses a leak-proof and easily infused enteral nutrition bag, including a nutrition bag body, an infusion tube installed on the nutrition bag body, the inner diameter of the infusion tube being ≥3cm, and the inner wall of the infusion tube forming a funnel-shaped cavity; wherein, the large opening of the funnel-shaped cavity is far away from the nutrition bag body, the inner wall of the infusion tube is a smooth surface, a suspension ring is fixedly connected to the inside of the nutrition bag body, a threaded groove is formed on the outer wall of the infusion tube, and an infusion cap is threadedly connected to the outer wall of the infusion tube, the infusion cap being threadedly connected to the inner wall of the threaded groove. In this utility model, the inner diameter of the infusion tube is ≥3cm, its inner wall forms a funnel-shaped cavity, and its inner wall is a smooth surface, which can significantly improve the infusion speed of the nutrient solution, reduce the difficulty of operation, and at the same time, because of the increased diameter, reduce the risk of leakage during operation, thus reducing the waste of nutrient solution or even the risk of contamination.

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing device technology, and in particular to an enteral nutrition bag that is leak-proof and easy to fill. Background Technology

[0002] Enteral nutrition support is an important clinical practice, especially for patients unable to eat orally. Traditional enteral nutrition bags are typically connected to an external catheter via an infusion tubing to deliver nutrient solutions. However, existing infusion tubing typically has a small inner diameter, generally less than 3 cm, with a common size of about 2 cm. This results in high fluid flow resistance and a slow infusion rate. To achieve rapid infusion and improve the convenience and safety of clinical procedures, a leak-proof and easily infused enteral nutrition bag is needed.

[0003] Furthermore, traditional small-diameter infusion tubing is prone to clogging when delivering high-viscosity nutrient solutions, such as those containing fiber, further reducing infusion efficiency. This deficiency is particularly pronounced in clinical scenarios requiring rapid infusion, such as emergency treatment or high-flow nutritional support. It not only affects treatment efficiency but may also increase the workload of medical staff. At the same time, due to the tubing diameter limitation, the sealing requirements at the connection points are high, and even slight carelessness can lead to leakage, resulting in waste of nutrient solution or even the risk of contamination. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a leak-proof and easy-to-inflate enteral nutrition bag, which aims to improve the problem that the previous nutrition bags had too small an infusion diameter, resulting in slow infusion speed, difficult operation, and especially affecting treatment efficiency in emergency situations.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A leak-proof and easily infused enteral nutrition bag includes a nutrition bag body, on which an infusion tube is installed. The inner diameter of the infusion tube is ≥3cm, and the inner wall of the infusion tube forms a funnel-shaped cavity. The large opening of the funnel-shaped cavity is far away from the nutrition bag body, and the inner wall of the infusion tube is a smooth surface.

[0007] Preferably, a suspension ring is fixedly connected inside the nutrient bag body, a threaded groove is opened on the outer wall of the infusion tube, an infusion cap is threadedly connected to the outer wall of the infusion tube, the infusion cap is threadedly connected to the inner wall of the threaded groove, a first rubber gasket is fixedly connected to the inner top wall of the infusion cap, and the outer wall of the first rubber gasket is slidably connected to the inner wall of the infusion tube.

[0008] Preferably, the outer wall of the filling cap is provided with anti-slip grooves.

[0009] Preferably, it also includes a clamping assembly; the clamping assembly includes a first connecting rope, a first clamping arm and a second clamping arm, one end of the first connecting rope is fixedly connected to the outer wall of the nutrient bag body, and the other end is fixedly connected to the first clamping arm, and the first clamping arm is rotatably connected to the second clamping arm.

[0010] The first clamping arm has a groove, and the second clamping arm is slidably connected in the groove;

[0011] The free end of the first clamping arm is provided with a second locking block, and the free end of the second clamping arm is provided with a first locking block. The first locking block and the second locking block are adapted to engage.

[0012] Preferably, an infusion tube is installed on the nutrient bag body, a limiting cylinder is fixedly connected inside the infusion tube, a locking pin is slidably connected to the inner wall of the limiting cylinder, and a spring is provided inside the limiting cylinder.

[0013] Preferably, one end of the spring is fixed to the locking post, and the other end abuts against the inner wall of the limiting cylinder, and the outer wall of the infusion tube is slidably connected to an infusion cap.

[0014] Preferably, a tricuspid heart valve is fixedly connected inside the infusion tube, and a second rubber gasket is fixedly connected inside the infusion cap, with the outer wall of the second rubber gasket slidably connected to the inner wall of the infusion tube.

[0015] Preferably, the infusion cap has a slot inside, the outer wall of the locking post is slidably connected to the inner wall of the slot, and a second connecting rope is fixedly connected to the outer wall of the infusion cap. The outer wall of the second connecting rope is fixedly connected to the bottom outer wall of the nutrient bag body.

[0016] This utility model has the following beneficial effects:

[0017] In this invention, the inner diameter of the infusion tube is ≥3cm, and its inner wall forms a funnel-shaped cavity with a smooth surface. This significantly improves the infusion speed of the nutrient solution and reduces the difficulty of operation. At the same time, the increased diameter reduces the risk of leakage during operation, thus reducing the waste or even contamination of the nutrient solution. Attached Figure Description

[0018] Figure 1 A perspective view of the leak-proof and easily filled enteral nutrition bag proposed in this utility model;

[0019] Figure 2 This is a partial structural diagram of the second connecting rope of the leak-proof and easily injectable enteral nutrition bag proposed in this utility model.

[0020] Figure 3 This is a partial structural diagram of the first clamping arm of the leak-proof and easily injectable enteral nutrition bag proposed in this utility model.

[0021] Figure 4 This is a partial structural diagram of the enteral nutrition bag filling cap that is leak-proof and easy to fill, as proposed in this utility model.

[0022] Figure 5 This is a partial structural diagram of the three-leaf heart valve of the enteral nutrition bag that is leak-proof and easy to inject, as proposed in this utility model.

[0023] Figure 6 This is a partial structural diagram of the spring in the enteral nutrition bag that is leak-proof and easy to inject, as proposed in this utility model.

[0024] Legend:

[0025] 1. Nutrient bag body; 2. Suspension ring; 3. Infusion tube; 4. Threaded groove; 5. Infusion cap; 6. First rubber gasket; 7. Anti-slip groove; 8. First connecting rope; 9. First clamping arm; 10. Groove; 11. Second clamping arm; 12. First locking block; 13. Second locking block; 14. Infusion tube; 15. Tricuspid heart valve; 16. Limiting cylinder; 17. Locking post; 18. Spring; 19. Infusion cap; 20. Second rubber gasket; 21. Locking groove; 22. Second connecting rope. Detailed Implementation

[0026] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An embodiment of this utility model provides a leak-proof and easily injectable enteral nutrition bag, comprising a nutrition bag body 1, an injection tube 3 installed on the nutrition bag body 1, the inner diameter of the injection tube 3 being ≥3cm, and the inner wall of the injection tube 3 forming a funnel-shaped cavity; wherein, the large opening of the funnel-shaped cavity is far away from the nutrition bag body 1, and the inner wall of the injection tube 3 is a smooth surface.

[0028] Specifically, the nutrient bag body 1 is made of medical-grade polymer materials such as PE or PP, which have good biocompatibility, corrosion resistance and transparency, making it easy to observe the internal liquid state. Its surface is set with volume scale lines, which facilitates precise control of the infusion volume in clinical practice. The infusion tube 3 has an enlarged inner diameter of ≥3cm. The inner wall of the infusion tube 3 is a smooth slope that is inclined towards the inlet side of the pipe to facilitate smooth liquid entry and reduce turbulence, while reducing flow resistance, thereby helping to guide the flow, reducing nutrient solution residue, and avoiding blockage by viscous liquid. The infusion tube 3 is a pipe with an inner diameter of 3cm, which can significantly improve the nutrient solution infusion speed.

[0029] Reference Figure 1 and Figure 3 The nutrient bag body 1 is internally fixedly connected to a suspension ring 2. The outer wall of the infusion tube 3 is provided with a threaded groove 4. An infusion cap 5 is threadedly connected to the outer wall of the infusion tube 3. The infusion cap 5 is threadedly connected to the inner wall of the threaded groove 4. A first rubber pad 6 is fixedly connected to the inner top wall of the infusion cap 5. The outer wall of the first rubber pad 6 is slidably connected to the inner wall of the infusion tube 3. An anti-slip groove 7 is provided on the outer wall of the infusion cap 5. The nutrient bag body 1 also includes a clamping assembly. The clamping assembly includes a first connecting rope 8, a first clamping arm 9, and a second clamping arm 11. One end of the first connecting rope 8 is fixedly connected to the outer wall of the nutrient bag body 1, and the other end is fixedly connected to the first clamping arm 9. The first clamping arm 9 is rotatably connected to the second clamping arm 11. A groove 10 is provided on the first clamping arm 9, and the second clamping arm 11 is slidably connected in the groove 10. A second locking block 13 is provided at the free end of the first clamping arm 9, and a first locking block 12 is provided at the free end of the second clamping arm 11. The first locking block 12 and the second locking block 13 are adapted to and engaged with each other.

[0030] Specifically, the suspension ring 2 is located at the upper left corner of the nutrient bag body 1, adopting a ring design and made of hard plastic or metal-coated material to ensure suspension stability. It can also connect to infusion stand auxiliary devices such as a height adjuster to adapt to different bed environments. The anti-slip groove 7 on the outer wall of the infusion cap 5 enhances friction during nurse operation, facilitating one-handed opening or closing. The first rubber gasket 6, made of medical-grade silicone, balances hardness with sealing and durability, and has an interference fit with the inner wall of the infusion tube 3, forming a double seal to effectively ensure its airtightness. The first connecting rope 8 serves to limit the connection of the first clamping arm 9. The first clamping arm 9 and the second clamping arm 11 can rotate 180°, ensuring smooth opening and closing and the ability to fix any angle. The groove 10 and the protrusion of the second clamping arm 11... The sliding joint restricts lateral displacement and effectively prevents misalignment during clamping. When the first clamping arm 9 and the second clamping arm 11 move towards each other and engage, the connection between the filling port and the nutrient bag can be clamped and sealed to ensure airtightness. The first clamping block 12 is a hemispherical protrusion and the second clamping block 13 is a matching recess, which enhances the interlocking stability. The contact surfaces of the first clamping block 12 and the second clamping block 13 are embedded with silicone pads, which not only increases friction but also avoids locking failure caused by wear of hard materials, thus effectively preventing nutrient solution leakage or contamination and ensuring hygiene and safety during storage and transportation. The first clamping arm 9 and the second clamping arm 11 together form a sealing clamp at the connection between the filling port and the nutrient bag, which facilitates a tight connection with the filling equipment or sealing cap.

[0031] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6 An infusion tube 14 is installed on the nutrient bag body 1. A limiting cylinder 16 is fixedly connected inside the infusion tube 14. A locking post 17 is slidably connected to the inner wall of the limiting cylinder 16. A spring 18 is installed inside the limiting cylinder 16. One end of the spring 18 is fixed to the locking post 17, and the other end abuts against the inner wall of the limiting cylinder 16. An infusion cap 19 is slidably connected to the outer wall of the infusion tube 14. A trilobal heart valve 15 is fixedly connected inside the infusion tube 14. A second rubber gasket 20 is fixedly connected inside the infusion cap 19. The outer wall of the second rubber gasket 20 is slidably connected to the inner wall of the infusion tube 14. A locking groove 21 is opened inside the infusion cap 19. The outer wall of the locking post 17 is slidably connected to the inner wall of the locking groove 21. A second connecting rope 22 is fixedly connected to the outer wall of the infusion cap 19. The outer wall of the second connecting rope 22 is fixedly connected to the bottom outer wall of the nutrient bag body 1.

[0032] Specifically, four limiting cylinders 16 are evenly distributed along the inner circumference of the infusion tube 14. Each limiting cylinder 16 is symmetrically arranged radially along the infusion tube 14. The limiting cylinder 16 supports the limiting pin 17 and the spring 18. The limiting cylinder 16 is sleeved outside the pin 17, and the second spring 18 is housed within the limiting cylinder 16 and connected to the pin 17. The inner wall of the limiting cylinder 16 slides against the pin 17, thereby limiting the displacement of the pin 17 and preventing [further movement / damage]. The locking post 17 disengages from the limiting cylinder 16 to ensure the stability of the post 17 during sliding. The locking post 17 has a cylindrical design with a hemispherical protrusion at the top to facilitate engagement with the locking groove 21. One end of the spring 18 is fixed to the locking post 17, and the other end is fixed in the limiting cylinder 16. The second rubber gasket 20 is made of medical-grade liquid silicone, with a convex cross-section and a drainage slope at the top to ensure complete coverage of the infusion port when closed. The second connecting rope 22 serves to connect to the limiting infusion cap 19. The tricuspid heart valve 15 automatically closes when the liquid has drained, effectively preventing air from entering the digestive tract and avoiding adverse reactions such as abdominal distension and reflux caused by air ingress. The tricuspid heart valve 15 is described in this paper as a biomimetic anti-reflux design, which ensures the safety of nutrient infusion and prevents air from entering the digestive tract through an automatic opening and closing mechanism. It is not an anatomical heart valve, but a functional structure in medical devices. The tricuspid heart valve 15 is located inside the infusion tube 14. The tricuspid heart valve 15 is existing technology. It is normally closed (preventing air from entering). When liquid flows through, the valve is opened. When the infusion stops, the valve automatically rebounds and closes. The top of the infusion port of the infusion tube 14 is made of rubber. This material is soft and elastic, which facilitates the precise insertion of the puncture instrument into the nutrient solution infusion tube 14, while providing excellent sealing performance to effectively prevent liquid leakage. The puncture port supports repeated punctures, avoiding waste caused by interface damage. In addition, the infusion tube 14 is equipped with an openable and closable infusion cap 19, which can effectively prevent contamination of the infusion port.

[0033] Working principle: When the device is needed, first open the filling cap 5. Simply twist the filling cap 5 to open it. Then, quickly inject the nutrient solution into the nutrient bag body 1 through the filling tube 3. After filling, tighten the filling cap 5 and clamp the first clamping arm 9 and the second clamping arm 11 connected to the nutrient bag body 1. At this time, the protrusion on the second clamping arm 11 will be inserted into the first clamping arm 9, and the second locking block 13 and the first locking block 12 will engage with each other to ensure sealing.

[0034] Then, pull open the infusion cap 19 on the infusion tube 14. At this time, the infusion cap 19 slides on the infusion tube 14 and squeezes the retaining post 17 to make it slide in the limiting cylinder 16. At the same time, the retaining post 17 squeezes the spring 18 to make it contract. Then, insert the piercing connecting tube into the infusion tube 14 to start the infusion. When the infusion is completed, the tricuspid valve 15 will automatically close, which can prevent air from entering the gastric tube and intestinal tube, so as to avoid abdominal distension and reflux.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 leak-proof, easy-to-pour enteral nutrition bag comprising a bag body (1), characterized in that: An infusion tube (3) is installed on the nutrient bag body (1). The inner diameter of the infusion tube (3) is ≥3cm, and the inner wall of the infusion tube (3) forms a trumpet-shaped cavity. The large opening of the trumpet-shaped cavity is far away from the nutrient bag body (1), and the inner wall of the infusion tube (3) is a smooth surface.

2. The leak-proof and easily filled enteral nutrition bag according to claim 1, characterized in that: The nutrient bag body (1) is fixedly connected to a suspension ring (2). The outer wall of the infusion tube (3) is provided with a threaded groove (4). The outer wall of the infusion tube (3) is threadedly connected to an infusion cap (5). The infusion cap (5) is threadedly connected to the inner wall of the threaded groove (4). The inner top wall of the infusion cap (5) is fixedly connected to a first rubber gasket (6). The outer wall of the first rubber gasket (6) is slidably connected to the inner wall of the infusion tube (3).

3. The leak-proof and easily filled enteral nutrition bag according to claim 2, characterized in that: The outer wall of the filling cap (5) is provided with anti-slip grooves (7).

4. The leak-proof and easily filled enteral nutrition bag according to claim 1, characterized in that: It also includes a clamping assembly; the clamping assembly includes a first connecting rope (8), a first clamping arm (9) and a second clamping arm (11), one end of the first connecting rope (8) is fixedly connected to the outer wall of the nutrient bag body (1), and the other end is fixedly connected to the first clamping arm (9), and the first clamping arm (9) is rotatably connected to the second clamping arm (11); The first clamping arm (9) has a groove (10) and the second clamping arm (11) is slidably connected in the groove (10); The free end of the first clamping arm (9) is provided with a second locking block (13), and the free end of the second clamping arm (11) is provided with a first locking block (12). The first locking block (12) and the second locking block (13) are adapted to engage.

5. The leak-proof and easily filled enteral nutrition bag according to claim 1, characterized in that: An infusion tube (14) is installed on the nutrient bag body (1). A limiting cylinder (16) is fixedly connected inside the infusion tube (14). A locking post (17) is slidably connected to the inner wall of the limiting cylinder (16). A spring (18) is provided inside the limiting cylinder (16).

6. The leak-proof and easily filled enteral nutrition bag according to claim 5, characterized in that: One end of the spring (18) is fixed to the locking post (17), and the other end abuts against the inner wall of the limiting cylinder (16). The outer wall of the infusion tube (14) is slidably connected to the infusion cap (19).

7. The leak-proof and easily filled enteral nutrition bag according to claim 6, characterized in that: The infusion tube (14) is fixedly connected to a tricuspid heart valve (15), and the infusion cap (19) is fixedly connected to a second rubber plug (20). The outer wall of the second rubber plug (20) is slidably connected to the inner wall of the infusion tube (14).

8. The leak-proof and easily filled enteral nutrition bag according to claim 7, characterized in that: The infusion cap (19) has a slot (21) inside. The outer wall of the locking post (17) is slidably connected to the inner wall of the slot (21). The outer wall of the infusion cap (19) is fixedly connected to a second connecting rope (22). The outer wall of the second connecting rope (22) is fixedly connected to the bottom outer wall of the nutrient bag body (1).

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