Three-cavity infusion bag

Abstract

The utility model provides a three-cavity infusion bag. The three-cavity infusion bag comprises an infusion soft bag, an infusion connector and a medicine adding connector. The infusion soft bag is provided with three liquid medicine cavities used for containing liquid medicine, and the adjacent sides of the three liquid medicine cavities are separated through weak welding rods. One end of the infusion connector is hermetically connected with the infusion soft bag, and the other end is provided with a first rubber plug cover for the infusion needle to puncture; one end of the medicine adding connector is connected with the infusion soft bag in a sealed mode and communicated with one liquid medicine cavity, and the other end of the medicine adding connector is provided with a second rubber plug cover for a medicine adding needle to puncture. During use, extrusion force is applied to the infusion soft bag, and the weak welding rod is burst open by the pressure of liquid medicine, so that the three injections are mixed together. When other agents need to be added, the agents can be injected into one of the liquid medicine cavities through the agent adding connector. The second rubber plug cover is contained in the protection cavity, sterile sealing is achieved through the second sealing protection cover, pollution or leakage can be prevented, rapid medicine adding can be achieved, and using is safer and more reliable.

Description

Technical Field

[0001] This utility model belongs to the field of infusion bag technology, specifically relating to a three-chamber infusion bag. Background Technology

[0002] A three-chamber infusion bag, or simply a three-chamber bag, is a special type of nutritional infusion bag. It functions when patients are unable to eat normally for various reasons or have impaired intestinal function. It provides three key nutrients: glucose, amino acids, and fat emulsion to meet the patient's nutritional needs. The three-chamber infusion bag stores glucose injection, compound amino acid injection, and fat emulsion injection, each of which is separately filled into three independent chambers, hence the name "three-chamber infusion bag."

[0003] Before use, the glucose injection, compound amino acid injection and fat emulsion injection in the three-chamber infusion bag are separately contained in three chambers. In clinical use, the contents of the three chambers must be mixed evenly before being infused into the patient through a peripheral vein or central vein to participate in blood circulation and provide the patient with the necessary energy and nutritional support.

[0004] In existing technology, adjacent chambers in a three-chamber infusion bag are separated by weak welding rods. Medical staff squeeze the infusion bag, causing the weak welding rods to rupture under pressure, allowing the injection solutions in the three chambers to mix together before being administered to the patient through the outlet, which has a sealed rubber stopper. However, in clinical use, there is a need to add additional medications or other substances (such as adrenaline) to the infusion bag. In existing technology, infusion and medication addition share a single outlet, requiring the medication to be injected through the rubber stopper. This poses a risk of leakage due to poor sealing of the rubber stopper. Utility Model Content

[0005] This invention provides a three-chamber infusion bag, which aims to solve the problem that existing three-chamber infusion bags lack an independent drug delivery port, resulting in leakage or contamination risks.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a three-chamber infusion bag, comprising:

[0007] An infusion bag has three drug chambers for containing drug solution, and the three drug chambers are separated from each other on adjacent sides by a weak welding rod;

[0008] An infusion connector, one end of which is sealed to the infusion bag, and the other end of which is provided with a first rubber stopper for puncture by an infusion needle, the first rubber stopper being detachably provided with a first sealing protective cover; and

[0009] The drug delivery connector has one end sealed to the infusion bag and communicating with one of the drug chambers. The other end of the drug delivery connector is provided with a second rubber stopper for the drug delivery needle to puncture. The outer wall of the other end of the drug delivery connector is provided with an annular positioning ring. The outer periphery of the positioning ring extends along the end direction of the drug delivery connector to form an annular protective sleeve. The outer wall of the protective sleeve is movably connected to a second sealing protective cover. The second sealing protective cover, the protective sleeve, and the positioning ring enclose a closed protective chamber, and the second rubber stopper is housed in the protective chamber.

[0010] In one possible implementation, the infusion bag has a through hanging hole.

[0011] In one possible implementation, the infusion connector and the drug delivery connector are respectively heat-fused to the sealing edge of the infusion soft bag.

[0012] In one possible implementation, the end of the infusion connector used to connect with the infusion soft bag and the end of the drug delivery connector used to connect with the infusion soft bag are respectively provided with fusion connecting ribs.

[0013] In one possible implementation, the second sealing cover is movably connected to the outer wall of the protective sleeve via a flexible connecting strip.

[0014] In one possible implementation, the outer wall of the other end of the infusion connector is provided with an annular first protrusion, and the first sealing protective cover is detachably connected to the first protrusion.

[0015] In one possible implementation, the outer wall of the other end of the infusion connector is provided with an annular second protrusion, the second protrusion being located on the side of the first protrusion adjacent to the infusion soft bag, and an accommodating space is formed between the second protrusion and the first protrusion.

[0016] In one possible implementation, the outer wall of the infusion connector is detachably wrapped with a heating ring, which is accommodated between the first boss and the second boss.

[0017] In one possible implementation, the infusion bag further has a mixing chamber adjacent to at least one of the drug solution chambers and separated from the drug solution chambers by a weak welding rod, and the infusion connector is in communication with the mixing chamber.

[0018] In one possible implementation, the three drug chambers are respectively used to contain glucose injection, amino acid injection, and fat emulsion injection.

[0019] Compared with the prior art, the beneficial effects of the three-chamber infusion bag provided by this utility model are:

[0020] This utility model provides a three-chamber infusion bag, comprising an infusion soft bag, an infusion connector, and a medication dispensing connector. The infusion soft bag has three medication chambers for storing glucose injection, compound amino acid injection, and fat emulsion injection, respectively. The infusion soft bag is connected to both the infusion connector and the medication dispensing connector. During use, pressure is applied to the infusion soft bag; the pressure of the medication forces open the weak welding rod, mixing the three injection solutions together. Then, the infusion needle pierces the first rubber stopper cap, and the infusion is administered to the patient. When additional medication is needed, the second sealing protective cap can be opened, and the medication can be injected into one of the medication chambers through the medication dispensing needle. The second rubber stopper cap is normally housed within the protective chamber, and the second sealing protective cap can seal the protective chamber, preventing contamination or leakage. This allows for rapid medication dispensing and is safer and more reliable during use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a three-chamber infusion bag provided in Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the dosing connector in Embodiment 1 of this utility model;

[0023] Figure 3 This is a cross-sectional view of the dosing connector in Embodiment 1 of this utility model;

[0024] Figure 4 This is a schematic diagram of the infusion connector in Embodiment 1 of this utility model;

[0025] Figure 5 This is a cross-sectional view of the infusion connector in Embodiment 1 of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of a three-chamber infusion bag provided in Embodiment 2 of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Infusion bag; 11. Medication chamber; 12. Heat-sealed edge; 13. Weak welding rod; 14. Hanging hole; 15. Mixing chamber; 20. Infusion connector; 21. First rubber stopper cap; 22. First sealing protective cap; 23. First boss; 24. Second boss; 25. Fusion connecting rib; 26. Heating ring; 30. Medication dispensing connector; 31. Second rubber stopper cap; 32. Positioning ring; 33. Protective sleeve; 34. Second sealing protective cap; 35. Flexible connecting strip. Detailed Implementation

[0029] 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.

[0030] Please refer to the following: Figures 1 to 6 The following is a description of a three-chamber infusion bag provided by this utility model.

[0031] Please see Figures 1 to 5 As an embodiment of the present invention, the three-chamber infusion bag includes an infusion soft bag 10, an infusion connector 20, and a drug delivery connector 30. The infusion bag 10 has three drug chambers 11 for containing drug solution, and the three drug chambers 11 are separated from each other on one side by a weak welding rod 13. One end of the infusion connector 20 is sealed to the infusion bag 10, and the other end of the infusion connector 20 is provided with a first rubber stopper 21 for the infusion needle to puncture. The first rubber stopper 21 is detachably provided with a first sealing protective cover 22. One end of the drug delivery connector 30 is sealed to the infusion bag 10 and communicates with one of the drug chambers 11. The other end of the drug delivery connector 30 is provided with a second rubber stopper 31 for the drug delivery needle to puncture. The outer wall of the other end of the drug delivery connector 30 is provided with an annular positioning ring 32. The outer periphery of the positioning ring 32 extends along the end direction of the drug delivery connector 30 to form an annular protective sleeve 33. The outer wall of the protective sleeve 33 is movably connected to a second sealing protective cover 34. The second sealing protective cover 34, the protective sleeve 33 and the positioning ring 32 enclose a closed protective chamber, and the second rubber stopper 31 is housed in the protective chamber.

[0032] Compared with the prior art, the beneficial effects of the three-chamber infusion bag provided by this utility model are:

[0033] This utility model provides a three-chamber infusion bag, comprising an infusion soft bag 10, an infusion connector 20, and a medication dispensing connector 30. The infusion soft bag 10 has three medication chambers 11 for storing glucose injection, compound amino acid injection, and fat emulsion injection, respectively. The infusion soft bag 10 is connected to the infusion connector 20 and the medication dispensing connector 30. During use, pressure is applied to the infusion soft bag 10, and the pressure of the medication forces open the weak welding rod 13, mixing the three injection solutions together. Then, the infusion needle pierces the first rubber stopper 21 to administer the infusion to the patient. When additional medication is needed, the second sealing protective cover 34 can be opened, and the medication can be injected into one of the medication chambers 11 through the medication dispensing needle. The second rubber stopper 31 is normally housed within the protective chamber, and the second sealing protective cover 34 seals the protective chamber, preventing contamination or leakage. This allows for rapid medication dispensing and is safer and more reliable during use.

[0034] In this invention, the infusion bag 10 is formed by joining two pieces of film together and then heat-sealing the edges 12. A weak welding rod 13 separates it into three medication chambers 11, each for holding different types of medications, such as glucose injection or amino acid injection. The three medication chambers 11 can be arranged in a straight line, a triangular arrangement, or other configurations. After filling, the filling port can be heat-sealed.

[0035] Both the infusion connector 20 and the drug delivery connector 30 can be integrally processed from polypropylene material and integrally connected to the infusion soft bag 10 by heat fusion connection.

[0036] Please see Figure 1 To facilitate hanging, the infusion bag 10 has a through hanging hole 14, which makes it easy to hang it on the infusion stand.

[0037] Please see Figure 1 The infusion connector 20 and the drug delivery connector 30 are respectively heat-fused to the sealing edge of the infusion soft bag 10 to prevent the drug solution from leaking from the connection.

[0038] Please see Figure 1 , Figure 2 and Figure 4 The infusion connector 20, which connects to the infusion soft bag 10, and the drug delivery connector 30, which connects to the infusion soft bag 10, are each provided with a fusion connecting rib 25. The fusion connecting rib 25 ensures the quality of the weld between the connector and the infusion soft bag 10.

[0039] Please see Figure 2 and Figure 3 The second sealing cover 34 and the outer wall of the protective sleeve 33 are movably connected by a flexible connecting strip 35.

[0040] Please see Figure 4 and Figure 5 Furthermore, the outer wall of the other end of the infusion connector 20 is provided with an annular first protrusion 23, and the first sealing cover 22 is detachably connected to the first protrusion 23. Optionally, the first sealing cover 22 can be connected to the first protrusion 23 by means of heat fusion welding, threaded connection, etc. During infusion, the first sealing cover 22 is removed, and then the infusion needle is passed through the first rubber stopper 21.

[0041] Please see Figure 4 and Figure 5 The outer wall of the other end of the infusion connector 20 is provided with an annular second protrusion 24. The second protrusion 24 is located on the side of the first protrusion 23 adjacent to the infusion soft bag 10, and an accommodating space is formed between the second protrusion 24 and the first protrusion 23. Please refer to Figure 1A heating ring 26 is detachably wound around the outer wall of the infusion connector 20. The heating ring 26 is housed between the first protrusion 23 and the second protrusion 24. The heating ring 26 has a built-in heating wire and uses electric heating. When in use, it is connected to a power source and can continuously heat the injection solution flowing from the infusion connector 20 to prevent the injection solution from being too cold and affecting the injection effect. The heating ring 26 is wound around the outer wall of the infusion connector 20 and can be removed when not in use. It is installed in a detachable manner and can be reused.

[0042] Please see Figure 6 As a second embodiment of this utility model, the infusion soft bag 10 also has a mixing chamber 15, which is adjacent to at least one medicine solution chamber 11. The mixing chamber 15 is empty and is separated from the medicine solution chamber 11 by a weak welding rod 13. The infusion connector 20 is connected to the mixing chamber 15. Figure 1 As shown, when the infusion connector 20 is directly connected to the drug solution chamber 11, some unmixed drug solution may remain in part of the infusion connector 20 during drug mixing. In this embodiment, during use, the weak welding strip 13 between the three injection solutions is first broken by squeezing the infusion soft bag 10. After the three injection solutions are mixed evenly, the infusion soft bag 10 is squeezed again to break the weak welding strip 13 between the drug solution chamber 11 and the mixing chamber 15. The mixed drug solution is then administered to the patient through the infusion connector 20 and the infusion tube.

[0043] Please see Figure 1 The three drug solution chambers 11 are used to contain glucose injection, amino acid injection and fat emulsion injection respectively. There are no specific restrictions on the dosage ratio of the three injection solutions. Users can prepare them themselves as needed.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., shall be interpreted broadly. For example, they may refer to a connection, a detachable connection, or an integral part; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; they may refer to the internal communication of two components or the interaction between two components. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0047] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0048] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present utility model specification has recorded each combined embodiment and can support different combined embodiments.

[0049] 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 and improvements 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 three-chambered infusion bag, characterized in that, The infusion soft bag (10) has three medicine liquid chambers (11) for containing medicine liquid, and the three medicine liquid chambers (11) are separated from each other by weak welding strips (13) on one side adjacent to each other. The infusion connector (20) is sealingly connected to the infusion soft bag (10) at one end, and is provided with a first rubber plug cover (21) for a puncture of an infusion needle at the other end, and the first rubber plug cover (21) is detachably provided with a first sealing protection cover (22) outside. The medicine adding connector (30) is sealingly connected to the infusion soft bag (10) at one end and communicates with one of the medicine liquid chambers (11), and is provided with a second rubber plug cover (31) for a puncture of a medicine adding needle at the other end, and the outer wall of the other end of the medicine adding connector (30) is provided with an annular positioning ring (32), the outer periphery of the positioning ring (32) extends in the direction of the end of the medicine adding connector (30) to form an annular protection sleeve (33), and the outer wall of the protection sleeve (33) is movably connected with a second sealing protection cover (34), the second sealing protection cover (34), the protection sleeve (33) and the positioning ring (32) form a closed protection chamber, and the second rubber plug cover (31) is contained in the protection chamber. The infusion soft bag (10) is provided with a through hanging hole (14).

2. A three-chambered infusion bag according to claim 1, wherein, The infusion connector (20) and the medicine adding connector (30) are respectively hot melt connected to the edge of the infusion soft bag (10).

3. The three-chambered infusion bag of claim 1, wherein, The end of the infusion connector (20) for connecting to the infusion soft bag (10) and the end of the medicine adding connector (30) for connecting to the infusion soft bag (10) are respectively provided with a melt connection rib (25).

4. A three-chambered infusion bag according to claim 3, wherein, The second sealing protection cover (34) and the outer wall of the protection sleeve (33) are movably connected by a flexible connecting strip (35).

5. The three-chambered infusion bag of claim 1, wherein, The outer wall of the other end of the infusion connector (20) is provided with an annular first boss (23), and the first sealing protection cover (22) is movably connected with the first boss (23).

6. The three-chambered infusion bag of claim 1, wherein, The outer wall of the other end of the infusion connector (20) is provided with an annular second boss (24), and the second boss (24) is located on the side adjacent to the infusion soft bag (10) of the first boss (23), and a containing space is formed between the second boss (24) and the first boss (23).

7. A three-chambered infusion bag according to claim 6, wherein, The outer wall of the infusion connector (20) is movably provided with a heating ring (26), and the heating ring (26) is contained between the first boss (23) and the second boss (24).

8. A three-chambered infusion bag according to claim 7, wherein, The infusion soft bag (10) further has a mixing chamber (15) adjacent to at least one of the medicine liquid chambers (11) and separated from the medicine liquid chamber (11) by a weak welding strip (13), and the infusion connector (20) communicates with the mixing chamber (15).

9. The three-chambered infusion bag of claim 1, wherein, The three medicine liquid chambers (11) are respectively used for containing glucose injection, amino acid injection and fat emulsion injection.

10. The three-chambered infusion bag of claim 1, wherein, ​

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