A tee fitting sterile protection device

CN224640213UActive Publication Date: 2026-08-18PUER PEOPLES HOSPITAL
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Patent Information

Application Number
CN202520300671.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-08-18
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

[0006]本实用新型的目的是为了解决现有三通管使用过程中所存在的各类问题,而提出的一种三通管无菌保护装置

Benefits of technology

[0013] 1. This utility model can seal and protect the tube opening through components such as tube plugs, movable plates, and fixed plates in the initial state and at each stage of drug input and switching. The corresponding tube opening will only open when the drug pipeline is accurately connected, which greatly reduces the chance of external contaminants coming into contact with the inside of the three-way tube, maintains the sterile state throughout the infusion process, and ensures the safety of patients during infusion.

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Abstract

The utility model relates to jelly stirring technical field, concretely is a tee pipe sterile protection device, including box cover, the box cover hinged has the box body, a plurality of fixed frame are fixedly connected in the box body, detachable tee pipe is provided on the fixed frame, the front of box body is provided with sliding slot, be provided with no. The utility model discloses, through the resilience design of no. 2 spring, extension spring, pulls out the liquid pipeline of not needing after, corresponding input branch mouth and input mouth can be rapid automatic closing, maintains the sterile environment in tee pipe.
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Description

Technical Field

[0001] This utility model relates to the field of aseptic protection technology for three-way pipes, specifically to an aseptic protection device for three-way pipes. Background Technology

[0002] In medical settings, three-way connectors are commonly used to deliver various medications. However, traditional three-way connectors lack effective aseptic protection measures. During the connection of medication lines, while waiting for infusion, or when switching medications, the connector opening is directly exposed to the external environment, making it highly susceptible to contamination by bacteria, dust, and other pollutants. This undoubtedly increases the risk of infusion-related infections and poses a potential threat to the health and safety of patients.

[0003] When multiple medications need to be administered to a patient, the traditional three-way connector method is complicated to operate and makes it difficult to achieve efficient, accurate and sterile connection. Each time a new medication is added, medical staff need to operate carefully, and the slightest carelessness can destroy the sterile environment. Moreover, there is a lack of systematic expansion methods to meet the convenient needs of mixing different quantities of medications.

[0004] During intravenous infusion, the infused fluid may be changed temporarily. Traditional three-way tubing does not have a convenient closure mechanism. Once the tubing is pulled out, the opening is open, and external contaminants can enter instantly, which destroys the sterility of the inside of the three-way tubing. If it is used again, the entire device must be replaced, which wastes medical resources and delays the patient's treatment time.

[0005] The purpose of this utility model is to provide a sterile protection device for a three-way pipe, thereby resolving various problems existing in the use of existing three-way pipes. Utility Model Content

[0006] The purpose of this invention is to solve various problems existing in the use of existing three-way pipes, and to propose a sterile protection device for three-way pipes.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a three-way tube sterile protection device, including a box cover, a box body hinged to the box cover, a plurality of fixing brackets fixedly connected inside the box body, and a detachable three-way tube provided on the fixing brackets.

[0008] Preferably, the front of the box body has a sliding groove, a second wedge block is provided in the sliding groove, a slider is fixedly connected to the second wedge block and provided in the sliding groove, a telescopic spring is fixedly connected to the side of the slider, the other end of the telescopic spring is fixedly connected to the inner wall of the sliding groove, a connecting rod is fixedly connected to the back of the slider, a pipe plug is fixedly connected to the other end of the connecting rod, and a T-shaped pipe inlet is provided on the back of the pipe plug.

[0009] Preferably, the back of the box body has a circular groove and an output port connected to a three-way pipe. Several No. 1 fixing clips are fixedly connected inside the output port. Several No. 1 springs are fixedly connected to the No. 1 fixing clips. The other end of each of the No. 1 springs is fixedly connected to a No. 1 movable plate. The No. 1 movable plate is slidably connected to the pipe wall of the output port. A pair of No. 1 fixing plates are provided on both sides of the No. 1 movable plate. The No. 1 fixing plates are fixedly connected to the pipe wall of the output port, and the No. 1 fixing clips are located outside the No. 1 fixing plates. A telescopic ring is connected to the pipe opening of the output port. A pull rod is fixedly connected to the edge of the telescopic ring. A sliding button is fixedly connected above the pull rod. The pull rod is slidably connected to the hidden groove. The hidden groove on the back of the box body allows the sliding button of the box lid to be hidden inside the box body when pulled to its innermost position.

[0010] Preferably, the side of the box body has a circular groove, and the groove is connected to an input port. The inner wall of the input port is fixedly connected to several No. 2 fixing clips, and several No. 2 springs are fixedly connected to the No. 2 springs. Each No. 2 spring is fixedly connected to a No. 2 movable plate. The No. 2 movable plate is slidably connected to the inner wall of the input port. A pair of No. 2 fixing plates are provided on both sides of the No. 2 movable plate. The No. 2 fixing plates are fixedly connected to the inner wall of the input port, and the No. 2 fixing clips are located inside the No. 2 fixing plates.

[0011] Preferably, a slide rail mother body is fixedly connected to the front of the box body, and a slide rail daughter body is fixedly connected to the back of the box body. The slide rail mother body and the slide rail daughter body can be used together. A first wedge block is fixedly connected to the back of the box body, and the first wedge block and the second wedge block can be used together.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. This utility model can seal and protect the tube opening through components such as tube plugs, movable plates, and fixed plates in the initial state and at each stage of drug input and switching. The corresponding tube opening will only open when the drug pipeline is accurately connected, which greatly reduces the chance of external contaminants coming into contact with the inside of the three-way tube, maintains the sterile state throughout the infusion process, and ensures the safety of patients during infusion.

[0014] 2. When multiple liquid medicines need to be input, this utility model can easily and quickly increase the number of devices by utilizing the cooperation between the slide rail sub-body and the slide rail mother body, as well as the structure of wedge blocks and telescopic springs, to realize the splicing of multiple devices and orderly complete the input of multiple liquid medicines, thus optimizing the complex liquid medicine mixing and conveying process.

[0015] 3. In the event of a temporary change in the infusion fluid during use, thanks to the rebound design of the No. 2 spring and the telescopic spring, the corresponding infusion port and inlet can quickly and automatically close after the unwanted fluid pipe is pulled out. This maintains the sterile environment inside the three-way tube and eliminates the need to replace the entire device, saving medical resources, improving the efficiency of medical staff, and making the infusion process smoother. Attached Figure Description

[0016] Figure 1 This is a frontal perspective view of the present invention.

[0017] Figure 2 This is a front structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the rear structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the present invention;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the back of this utility model;

[0021] Figure 6 This is a schematic diagram of the present invention with the box body removed;

[0022] Figure 7 This is a schematic cross-sectional view of the input and output tubes of this utility model.

[0023] Figure 8 This is a schematic diagram of the cross-sectional structure of the input branch pipe of this utility model;

[0024] Legend: 1. Box lid; 2. Box body; 3. Main slide rail body; 4. Sub-slide rail body; 5. Wedge block No. 1; 6. Wedge block No. 2; 7. Sliding groove; 8. Telescopic spring; 9. Connecting rod; 10. Pipe plug; 11. Telescopic ring; 12. Pull rod; 13. Hidden groove; 14. Sliding button; 15. Input port; 16. Output port; 17. Input support port; 18. Fixing clip No. 1; 19. Spring No. 1; 20. Fixing bracket; 21. Fixing clip No. 2; 22. Spring No. 2; 23. Fixing plate No. 1; 24. Movable plate No. 1; 25. Fixing plate No. 2; 26. Movable plate No. 2. Detailed Implementation

[0025] Reference Figures 1 to 8 As shown, this utility model provides a technical solution: a three-way tube sterile protection device, including a box cover 1, a box body 2 hinged to the box cover 1, and a plurality of fixing brackets 20 fixedly connected inside the box body 2, with a detachable three-way tube provided on the fixing brackets 20.

[0026] In one embodiment, a sliding groove 7 is provided on the front of the box body 2, and a second wedge block 6 is provided in the sliding groove 7. The second wedge block 6 is fixedly connected to a slider provided in the sliding groove 7. A telescopic spring 8 is fixedly connected to the side of the slider. The other end of the telescopic spring 8 is fixedly connected to the inner wall of the sliding groove 7. A connecting rod 9 is fixedly connected to the back of the slider. A pipe plug 10 is fixedly connected to the other end of the connecting rod 9. A three-way pipe inlet 15 is provided on the back of the pipe plug 10.

[0027] In one embodiment, the back of the box body 2 has a circular groove and an output port 16 connected to a three-way pipe. Several No. 1 fixing clips 18 are fixedly connected inside the output port 16. Several No. 1 springs 19 are fixedly connected to the No. 1 fixing clips 18. The other end of each No. 1 spring 19 is fixedly connected to a No. 1 movable plate 24. The No. 1 movable plate 24 is slidably connected to the pipe wall of the output port 16. A pair of No. 1 fixing plates 23 are provided on both sides of the No. 1 movable plate 24. The No. 1 fixing plates 23 are fixedly connected to the pipe wall of the output port 16. The No. 1 fixing clips 18 are located outside the No. 1 fixing plates 23. A telescopic ring 11 is connected to the pipe opening of the output port 16. A pull rod 12 is fixedly connected to the edge of the telescopic ring 11. A sliding button 14 is fixedly connected above the pull rod 12. The pull rod 12 is slidably connected to the hidden groove 13. The hidden groove 13 on the back of the box body 2 allows the sliding button 14 of the box cover 1 to be hidden inside the box body 2 when pulled to the innermost position.

[0028] In one embodiment, a circular groove is provided on the side of the box body 2, and the groove is connected to an input port 17. Several second-order fixing clips 21 are fixedly connected to the inner wall of the input port 17. Several second-order springs 22 are fixedly connected to the second-order fixing clips 21. Several second-order springs 22 are fixedly connected to second-order movable plates 26. The second-order movable plates 26 are slidably connected to the inner wall of the input port 17. A pair of second-order fixing plates 25 are provided on both sides of the second-order movable plates 26. The second-order fixing plates 25 are fixedly connected to the inner wall of the input port 17, and the second-order fixing clips 21 are located inside the second-order fixing plates 25.

[0029] In one embodiment, a slide rail mother body 3 is fixedly connected to the front of the box body 2, and a slide rail daughter body 4 is fixedly connected to the back of the box body 2. The slide rail mother body 3 and the slide rail daughter body 4 can be used together. A first wedge block 5 is fixedly connected to the back of the box body 2. The first wedge block 5 and the second wedge block 6 can be used together.

[0030] Working Principle: When this device is needed, first connect the output port 16 to an empty pipe. When two different liquids need to be input, move the second wedge block 6 to the movable side, causing the pipe plug 10 to slide to the right, exposing the opening of the input port 15. Then, insert one of the required liquids into the pipe, and the other liquid into the input branch port 17. Simultaneously, the liquid pressure forces the second movable plate 26 inward to compress the spring, causing the liquid to flow into the tee pipe through the side gap. The liquid mixes in the pipe cavity. When the liquid in the cavity reaches a certain saturation point, the liquid pushes the first fixed plate 23 outward to compress the spring, causing the liquid to flow into the empty pipe through the side gap. Since there can only be one output port, each additional liquid input requires one more of this device. When three types of medicine need to be input, two of these devices are required. Align the slide rail body 4 of one device with the slide rail body 3 of the other device from top to bottom and insert it downwards to ensure a tight fit. At the same time, slide the sliding button 14 of the other device inwards. The inward sliding of the sliding button 14 causes the telescopic ring 11 indirectly connected to it to slide inwards. Meanwhile, due to the compression of the first wedge block 5 of the other device from top to bottom against the second wedge block 6, the second wedge block 6 compresses the telescopic spring 8 until the pipe plug 10 is completely moved to the same side, exposing the inlet 15. Release the sliding button 14 of the other device, and the telescopic ring 11 of the other device will automatically spring back to the inlet 15 for connection. The above operation for installing two types of medicine can be performed to connect the input pipe.

[0031] When it is necessary to temporarily change the input liquid while using this device, simply pull out the unwanted liquid pipe. For the input port 17, when the second fixing plate 25 continues to press the second spring 22 inward without liquid pushing it, the second spring 22 rebounds and resets the second fixing plate 25, and the pipe opening of the input port 17 automatically closes. For the input port 15, simply pull out the unwanted liquid pipe, and the telescopic spring 8 rebounds, indirectly resetting the pipe plug 10.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A tee fitting aseptic protection device, characterized in that: Includes a lid (1), the lid (1) is hinged to a body (2), the body (2) is fixedly connected to several fixing brackets (20), the fixing brackets (20) are provided with detachable three-way pipes, the front of the body (2) is provided with a sliding groove (7), the sliding groove (7) is fixedly connected with a telescopic spring (8), the other end of the telescopic spring (8) is fixedly connected with a second wedge block (6), the back of the second wedge block (6) is fixedly connected with a connecting rod (9), the other end of the connecting rod (9) is fixedly connected with a pipe plug (10), the back of the pipe plug (10) is provided with a three-way pipe inlet (15).

2. A tee tube sterilization protection device according to claim 1, characterized in that: The back of the box (2) has a circular groove and an output port (16) connected to a three-way pipe. Several No. 1 fixing clips (18) are fixedly connected inside the output port (16). Several No. 1 springs (19) are fixedly connected to the No. 1 fixing clips (18). The other end of each of the No. 1 springs (19) is fixedly connected to a No. 1 movable plate (24). The No. 1 movable plate (24) is slidably connected to the pipe wall of the output port (16). A pair of No. 1 fixing plates (23) are provided on both sides of the No. 1 movable plate (24). The No. 1 fixing plates (23) are fixedly connected to the pipe wall of the output port (16).

3. A tee pipe sterilization protection device according to claim 2, characterized in that: The first fixing clip (18) is located outside the first fixing plate (23). The outlet (16) is connected to a telescopic ring (11). A pull rod (12) is fixedly connected to the edge of the telescopic ring (11). A sliding button (14) is fixedly connected above the pull rod (12). A hidden groove (13) is provided on the back of the box (2) so that the sliding button (14) can be hidden inside the box (2) when pulled to the innermost position. The pull rod (12) is slidably connected to the hidden groove (13).

4. A tee-joint sterilization protector according to claim 1, characterized in that: The side of the box (2) is provided with a circular groove, and the groove is connected to an input port (17). Several No. 2 fixing clips (21) are fixedly connected to the inner wall of the input port (17). Several No. 2 springs (22) are fixedly connected to the No. 2 fixing clips (21). Several No. 2 movable plates (26) are fixedly connected to the No. 2 springs (22). The No. 2 movable plates (26) are slidably connected to the inner wall of the input port (17). A pair of No. 2 fixing plates (25) are provided on both sides of the No. 2 movable plates (26). The No. 2 fixing plates (25) are fixedly connected to the inner wall of the input port (17), and the No. 2 fixing clips (21) are located inside the No. 2 fixing plates (25).

5. The aseptic protection device for a three-way tube according to claim 1, characterized in that: The front of the box (2) is fixedly connected to the slide rail mother body (3), and the back of the box (2) is fixedly connected to the slide rail daughter body (4). The slide rail mother body (3) and the slide rail daughter body (4) can be used together. The back of the box (2) is fixedly connected to the first wedge block (5), and the first wedge block (5) and the second wedge block (6) can be used together.