System conversion tee

By designing a system conversion three-way device, using a pagoda connector and a T-type three-way valve to achieve separate operation of drug injection and drainage, the problem of the existing drainage device being disrupted by the sealed environment and the risk of infection during drug injection is solved, providing a safe and convenient operation method.

CN224307683UActive Publication Date: 2026-06-02TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
Filing Date
2025-01-26
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing drainage devices can easily disrupt the closed environment when injecting drugs or saline, increasing the risk of infection. Furthermore, improper operation may lead to spillage and occupational exposure.

Method used

A system conversion three-way device was designed, including a first valve channel and a second valve channel, which are connected to the drainage tube through a pagoda connector. They are used for drug injection and drainage, respectively. The T-type three-way valve and threaded connection enable diversified operation and avoid disassembling the drainage tube and connecting it to the drainage bag.

Benefits of technology

It achieves the maintenance of a closed environment during drug injection and drainage, reducing the risk of infection. The operation is simple and does not easily cause spillage, thus reducing the risk of infection and contamination.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224307683U_ABST
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Abstract

The utility model provides a system conversion tee, include: first valve channel, first valve channel includes first tee valve, pagoda joint and two first water injection joint, and two water injection joints are installed in the three valve ports of first tee valve respectively, second valve channel, second valve channel includes second tee valve, second water injection joint, connecting head and discharge head. The first valve channel of the device is connected with the drainage tube on the patient's body through the pagoda joint, the use form is various, when only needing to inject medicine, the first valve channel is used alone, when needing to inject medicine and also needing to drain, the first valve channel and the second valve channel are connected and used, when injecting medicine or draining, rotating first tee valve and second tee valve can, the operation is simple, and at the same time, external bacteria cannot enter due to the mutual dismounting connection between the drainage tube and the drainage bag or the medicine bag, causing the infection of the patient.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a system conversion tee. Background Technology

[0002] Drainage devices (including gastrointestinal decompression, wound drainage, joint cavity drainage, abdominal cavity drainage, urinary catheter drainage, etc.) are devices that use invasive or non-invasive methods to insert a drainage tube into a corresponding location in the body and connect it to a drainage bag to drain fluid. In clinical nursing work, it is necessary to administer medications through drainage tubes, such as gastric tube administration, wound irrigation, transvesical intra-abdominal pressure measurement, and neonatal gastric lavage.

[0003] When it is necessary to inject saline solution into the drainage tube for flushing or medication administration in clinical practice, it is necessary to separate the drainage tube and drainage bag, or directly puncture the drainage tube with a syringe needle. Both of these operations will cause the drainage system to lose its sealed environment. If the operation is frequent or not standardized, it is easy to contaminate the tubing and even cause infection in the patient. At the same time, the operation of separating the drainage system or puncturing the tubing also poses an occupational exposure risk because the drainage fluid will spill out.

[0004] How to provide a system conversion tee that can be used in various ways to separate drainage and drug injection to reduce infection is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a system conversion tee to at least solve one of the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, this utility model provides a system conversion three-way valve, comprising: a first valve channel, the first valve channel including a first three-way valve, a pagoda connector and two first water injection connectors, the pagoda connector and the two first water injection connectors being respectively installed on the three valve ports of the first three-way valve; and a second valve channel, the second valve channel including a second three-way valve, a second water injection connector, a connector and a drain head, the second water injection connector, the connector and the drain head being respectively installed on the three valve ports of the second three-way valve, the connector and any one of the first water injection connectors being detachably connected.

[0007] Optionally, the inner diameter of the connector is the same as the outer diameter of the first water injection connector. The inner ring of the connector is provided with a thread, and the outer ring of the first water injection connector, which is detachably connected to the connector, is provided with a thread that matches the connector. The threaded first water injection connector is detachably connected to the connector through the thread.

[0008] Optionally, one valve port of the first three-way valve connected to the pagoda connector is provided with an external thread, while the pagoda connector is provided with an internal thread, and the pagoda connector and the first three-way valve are detachably connected by the thread.

[0009] Optionally, the connector is detachably threaded onto one port of the second three-way valve, and the spiral connector is detachably threaded onto one port of the first three-way valve. The thread size is the same at the end of the connector connected to the second three-way valve and the thread size is the same at the end of the spiral connector connected to the first three-way valve.

[0010] Optionally, the three valve ports of the first three-way valve are T-shaped, and the pagoda connector and the first water injection connector connected to the connector are located at opposite ends of the three valve ports of the first three-way valve; the three valve ports of the second three-way valve are T-shaped, and the connector and the drain head are located at opposite ends of the three valve ports of the second three-way valve.

[0011] Optionally, the discharge head is frustum-shaped, and the smaller diameter side of the discharge head is connected to the second three-way valve.

[0012] Optionally, the drain head can be detachably connected to one port of the second three-way valve.

[0013] Optionally, both the first three-way valve and the second three-way valve are T-type three-way ball valves.

[0014] Optionally, the first and second water inlet connectors may be detachably equipped with connector caps.

[0015] Optionally, both the first three-way valve and the second three-way valve are made of PVC material.

[0016] Beneficial effects:

[0017] This invention provides a system conversion three-way valve. The first valve of the device is connected to a drainage tube on the patient's body via a pagoda connector. Normally, when no treatment is needed, both first water inlet terminals of the first three-way valve are closed. When only medication needs to be administered, one or two medications are connected to the two first water inlet terminals respectively, the first three-way valve is opened, and the valve is connected to one or both first water inlet terminals for medication administration. When both medication administration and drainage of bodily fluids are required, the second valve is connected to one first water inlet terminal via a connector, and the drain head is connected to a drainage bag. The pagoda connector of the first three-way valve is connected to one water inlet terminal of the second valve, while the other water inlet terminal is closed. The second three-way valve connects the connector and the drain head, while the second water inlet is also closed. The first and second valve channels form a straight pipe for drainage. When medication needs to be injected again, the second valve channel does not need to be disassembled. Simply close the drain head of the second three-way valve, connect the second water inlet and the connector, and open all three ends of the first valve channel, allowing simultaneous injection of medication at both connectors. This device can be used in various ways. When only medication is needed, the first valve channel can be used alone. When both medication and drainage are needed, the first and second valve channels can be connected. To inject or drain, simply rotate the first and second three-way valves. The operation is simple and prevents external bacteria from entering and causing infection to the patient due to the disassembly and reassembly of the drainage tube and drainage bag or medication bag.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the split facade structure provided in an embodiment of this application;

[0021] Figure 2 A schematic diagram of the communication elevation of the first valve channel and the second valve channel provided in an embodiment of this application;

[0022] Figure 3 A schematic diagram of the communication elevation of the first valve channel and the second valve channel provided in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the connection structure between the second valve channel and the pagoda connector provided in an embodiment of this application.

[0024] Figure label:

[0025] 1. First valve channel; 11. First three-way valve; 12. Pagoda connector; 13. First water injection connector;

[0026] 2. Second valve channel; 21. Second three-way valve; 22. Second water inlet connector; 23. Connector; 24. Drain head;

[0027] 3. Connector cap. Detailed Implementation

[0028] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this specification are within the protection scope of this utility model.

[0029] Furthermore, in the embodiments of this specification, when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component present.

[0030] Please see Figure 1-4 This embodiment provides a system conversion tee, which includes a first valve channel 1, which includes a first tee valve 11, a pagoda connector 12, and two first water inlet connectors 13, which are respectively installed at the three valve ports of the first tee valve 11; and a second valve channel 2, which includes a second tee valve 21, a second water inlet connector 22, a connector 23, and a drain head 24, which are respectively installed at the three valve ports of the second tee valve 21, and the connector 23 is detachably connected to any one of the first water inlet connectors 13.

[0031] Specifically, the first valve 1 of the device is connected to a drainage tube on the patient's body via a pagoda connector 12. Normally, when no treatment is needed, both first water inlet connectors 13 of the first three-way valve 11 are closed. When only medication needs to be administered, one or two medications are connected to the two first water inlet connectors 13 respectively, the first three-way valve 11 is opened, and the first three-way valve 11 is connected to one or both first water inlet connectors 13 for medication administration. When both medication administration and drainage of fluids from the patient's body are required, the second valve 2 is connected to one first water inlet connector 13 via a connector 23, and the drain head 24 is connected to a drainage bag. The pagoda connector 12 of the first three-way valve 11 is connected to one water inlet connector of the second valve 2, while the other water inlet connector is closed, and the second three-way valve 2 is opened. 1. Connect the connector 23 and the drain head 24, and close the second water inlet connector 22. The first valve channel 1 and the second valve channel 2 form a straight pipe for drainage. When medication needs to be injected again, the second valve channel 2 does not need to be disassembled. Close the drain head 24 of the second three-way valve 21, connect the second water inlet connector 22 and the connector 23, and open all three ends of the first valve channel 1. Medication can then be injected into the patient through both connectors simultaneously. This device can be used in various ways. When only medication is needed, the first valve channel 1 can be used alone. When both medication and drainage are needed, the first valve channel 1 and the second valve channel 2 can be connected. When injecting medication or draining, simply rotate the first three-way valve 11 and the second three-way valve 21. The operation is simple, and there is no risk of external bacteria entering the patient due to the disassembly and reassembly of the drainage tube and the drainage bag or medication bag, which could cause infection.

[0032] In some possible implementations, the inner diameter of the connector 23 is the same as the outer diameter of the first water inlet connector 13, the inner ring of the connector 23 is provided with threads, the outer ring of the first water inlet connector 13 which is detachably connected to the connector 23 is provided with threads that are compatible with the connector 23, and the threaded first water inlet connector 13 is detachably connected to the connector 23 through the threads.

[0033] Specifically, the injection tube is connected by inserting into the interior of the first water injection connector 13. The first water injection connector 13 needs to be connected to the connector 23. The outer ring of the first water injection connector 13 does not affect the connection with the injection tube. The outer ring of the first water injection connector 13 is threaded. The first water injection connector 13 is more tightly connected to the inner ring of the connector 23 through the thread, and there will be no leakage.

[0034] In some possible implementations, one port of the first three-way valve 11 connected to the pagoda connector 12 has an external thread, while the pagoda connector 12 has an internal thread. The pagoda connector 12 and the first three-way valve 11 are detachably connected via threads. The connector 23 is detachably threaded onto one port of the second three-way valve 21, and the end of the connector 23 connected to the second three-way valve 21 has the same thread size as the pagoda connector 12.

[0035] Specifically, the pagoda connector 12 is connected to the first three-way valve 11 via threads. Different diameter pagoda connectors 12 can be selected as needed. When the required diameter of the pagoda connector 12 is small, the pagoda connector 12 can be removed, and the connector 23 on the second three-way valve 21 can be removed. Since the end of the connector 23 that connects to the second three-way valve 21 has the same thread size as the pagoda connector 12, the pagoda connector 12 can be connected to the second three-way valve 21. A single second valve channel 2 can complete the task of drug injection or drainage for the patient. A single valve channel is more convenient. At the same time, when replacing, medical staff will not directly contact the head end of the pagoda connector 12 when holding the bolt, thus avoiding contamination.

[0036] In some possible implementations, the three ports of the first three-way valve 11 are T-shaped, with the pagoda connector 12 and the first water inlet connector 13 connected to the connector 23 located at opposite ends of the three ports of the first three-way valve 11; the three ports of the second three-way valve 21 are T-shaped, with the connector 23 and the drain head 24 located at opposite ends of the three ports of the second three-way valve 21.

[0037] Specifically, both the first three-way valve 11 and the second three-way valve 21 are T-shaped, and the pagoda connector 12 and the first water inlet connector 13 connected to the connector 23 are opposite each other. The connector 23 is opposite to the drain head 24. Therefore, the drain head 24 and the pagoda connector 12 are opposite each other. When the two three-way valves are connected, they form a straight pipe, which is more aesthetically pleasing and easier to place.

[0038] In some possible implementations, the drain head 24 is frustoconical, with the smaller diameter side of the drain head 24 connected to the second three-way valve 21. The drain head 24 is detachably connected to one port of the second three-way valve 21.

[0039] Specifically, the frustum-shaped drain head 24 makes it easier to drain the drainage fluid. At the same time, the drain head 24 can be disassembled for easy cleaning.

[0040] In some possible implementations, both the first three-way valve 11 and the second three-way valve 21 are T-type three-way ball valves.

[0041] Specifically, the T-type three-way ball valve has two inlets and one outlet, which perfectly meets the usage requirements of this device. In addition, the three-way ball valve has a simple structure, is not prone to failure, and can also adjust the flow rate, making it more convenient to use.

[0042] In some possible implementations, a connector cap 3 is detachably provided on the first water inlet connector 13 and the second water inlet connector 22.

[0043] Specifically, when draining a patient, the first water inlet connector 13 and the second water inlet connector 22 do not need to be used. Covering them with caps can prevent direct contact with the external parts and thus avoid contamination.

[0044] In some possible implementations, both the first three-way valve 11 and the second three-way valve 21 are made of PVC material.

[0045] Specifically, PVC material is lighter and has good chemical stability, and will not corrode or produce harmful substances when in contact with drugs or drainage fluids.

[0046] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. All should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0047] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A system conversion tee, characterized in that, include: The first valve channel (1) includes a first three-way valve (11), a pagoda connector (12) and two first water inlet connectors (13), wherein the pagoda connector (12) and the two first water inlet connectors (13) are respectively installed at the three valve ports of the first three-way valve (11); The second valve channel (2) includes a second three-way valve (21), a second water inlet connector (22), a connector (23), and a drain head (24). The second water inlet connector (22), the connector (23), and the drain head (24) are respectively installed on the three valve ports of the second three-way valve (21). The connector (23) is detachably connected to any one of the first water inlet connectors (13).

2. A system conversion tee according to claim 1, characterized in that: The inner diameter of the connector (23) is the same as the outer diameter of the first water injection connector (13). The inner ring of the connector (23) is provided with a thread. The outer ring of the first water injection connector (13), which is detachably connected to the connector (23), is provided with a thread that matches the connector (23). The first water injection connector (13) with the thread is detachably connected to the connector (23) through the thread.

3. A system conversion tee according to claim 2, characterized in that: The first three-way valve (11) is connected to the pagoda connector (12) with an external thread at one of its ports, and the pagoda connector (12) is internally threaded. The pagoda connector (12) and the first three-way valve (11) are detachably connected by the thread.

4. A system conversion tee according to claim 3, characterized in that: The connector (23) is detachably threaded onto one valve port of the second three-way valve (21). The end of the connector (23) connected to the second three-way valve (21) has the same thread size as the pagoda connector (12).

5. A system conversion tee according to claim 4, characterized in that: The three valve ports of the first three-way valve (11) are T-shaped, and the pagoda connector (12) and the first water injection connector (13) connected to the connector (23) are located at opposite ends of the three valve ports of the first three-way valve (11); The three ports of the second three-way valve (21) are T-shaped, and the connecting head (23) and the drain head (24) are located at opposite ends of the three ports of the second three-way valve (21).

6. A system conversion tee according to claim 5, characterized in that: The drain head (24) is frustum-shaped, and the smaller diameter side of the drain head (24) is connected to the second three-way valve (21).

7. A system conversion tee according to claim 6, characterized in that: The drain head (24) is detachably connected to one port of the second three-way valve (21).

8. A system conversion tee according to any one of claims 1 to 7, characterized in that: Both the first three-way valve (11) and the second three-way valve (21) are T-type three-way ball valves.

9. A system conversion tee according to claim 8, characterized in that: The first water inlet connector (13) and the second water inlet connector (22) are detachably provided with connector caps (3).

10. A system conversion tee according to claim 9, characterized in that: Both the first three-way valve (11) and the second three-way valve (21) are made of PVC material.