Three-way switch drainage bag

By introducing a support frame and heating device into the drainage bag, the problems of connecting tube entanglement and low-temperature blockage were solved, resulting in convenient operation and improved patient comfort.

CN223930479UActive Publication Date: 2026-02-24THE FIFTH AFFILIATED HOSPITAL SUN YAT SEN UNIV
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Patent Information

Application Number
CN202423153035.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2026-02-24
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

The connecting tubes of existing drainage bags are prone to tangling, and the medication may become too cold in a low-temperature environment, affecting patient comfort and potentially causing blockage.

Method used

A three-way switch drainage bag was designed, which includes a sorting bracket and a heating device. The sorting bracket is used to fix the connecting tube to prevent tangling, and the heating device is used to maintain a suitable liquid temperature in the connecting tube.

Benefits of technology

It improves the ease of operation and safety for medical staff, avoids tangling and blockage of connecting tubes, ensures appropriate drug temperature, and enhances patient comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical instruments, in particular to a three-way switch drainage bag which comprises a bag body, a liquid outlet pipe is communicated with the lower end of the bag body, a connecting pipe is communicated with the upper end of the bag body, and a three-way switch is arranged at the end, away from the bag body, of the connecting pipe. A sorting support is arranged on the connecting pipe between the three-way switch and the bag body, the connecting pipe is detachably connected with the sorting support, and a heating device is further arranged on the sorting support. According to the utility model, the arrangement of the connecting pipe is realized, the winding of the connecting pipe due to overlength is avoided, meanwhile, the connecting pipe can be heated, the medicine can enter a human body at a proper temperature, the comfort of a patient is improved, and the freezing blockage caused by overlow temperature of the connecting pipe is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a three-way switch drainage bag. Background Technology

[0002] A drainage bag is a medical device primarily used to collect and drain fluids and gases from the body, such as postoperative bleeding or effusion, or to collect urine from patients with urinary incontinence, those in a surgical coma, or those with limited mobility. It can also be used to deliver medications into the body. It typically consists of a bag body, drainage tube, and connectors. While some components may vary depending on the specific function, they all have structures for draining and storing bodily fluids. The drainage tube has a three-way valve, allowing medical personnel to mix different medications into the drainage bag for administration to the patient, or to extract bodily fluids for testing without disassembling the drainage bag. The drainage tube connects to the drainage bag, and fluid flows into the bag through the tube. To ensure the drainage tube can adapt to as many situations as possible, it is generally designed to be relatively long. In cases where the drainage tube is not properly positioned... fixed In certain situations, the drainage tube is prone to tangling and knotting, affecting its normal use. Furthermore, when administering medication, because the drainage bag is in the external environment and the drainage tube is relatively long, the medication remains exposed to the ambient temperature for an extended period before entering the body. Low ambient temperatures can cause the medication to become too cold, leading to discomfort for the patient after administration. Extremely low temperatures can even cause the fluid inside the drainage tube to freeze, resulting in blockage and preventing drainage or medication delivery. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a three-way switch drainage band that organizes the connecting tube, preventing tangling due to excessive length. It also heats the connecting tube, ensuring medication enters the body at a suitable temperature, improving patient comfort, and preventing freezing and blockage caused by excessively low tube temperature.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a three-way switch drainage bag, including a bag body, a liquid outlet pipe connected to the lower end of the bag body, a connecting pipe connected to the upper end of the bag body, a three-way switch provided at the end of the connecting pipe away from the bag body, an organizing bracket provided on the connecting pipe between the three-way switch and the bag body, the connecting pipe and the organizing bracket being detachably connected, and a heating device provided on the organizing bracket.

[0005] In this technical solution, the bag is used to collect and contain fluids expelled from the body or medications to be administered into the body. A connecting tube is connected to the upper end of the bag, and an outlet tube is located at the lower end. The connecting tube is positioned above the outlet tube. Fluid flows from the connecting tube into the drainage bag and finally exits from the outlet tube. This design utilizes the weight of the fluid itself to restrict its flow to the outlet tube, preventing backflow. When the drainage bag is used to drain bodily fluids, the connecting tube is connected to the body; when the drainage bag is used to administer medications, the connecting tube is connected to the medication, and the outlet tube is connected to the body. During the use of the drainage bag, medical personnel frequently need to extract bodily fluids from the bag for testing or, as needed, inject medications into the bag to administer the medications into the body. The connecting tube is equipped with a three-way switch, which connects to the tube. Medical personnel can use the three-way switch to draw fluid from or inject medication into the drainage bag without disassembling the bag, thus improving the convenience and efficiency of operation and reducing the risk of infection. To adapt to different usage environments, the connecting tube is generally quite long, allowing the drainage bag to transfer fluid over a considerable distance. When the transfer distance is short, the longer portion of the connecting tube may accumulate and become tangled, affecting the normal operation of the connecting tube. Therefore, a organizing bracket is also provided to organize the connecting tube, ensuring it maintains a specific and unchanging shape and preventing tangling caused by the tube's free-form movement, which could affect its normal function. Since the drainage bag and connecting tube are located outside the body, the temperature of the fluid inside is affected by the environment. Low temperatures can cause the fluid introduced into the body to be too cold, affecting patient comfort. When the temperature is too low, the liquid inside the connecting tube may freeze, causing blockage and preventing the drainage of bodily fluids or the injection of medication. Therefore, the support frame is equipped with a heating device to heat the liquid in the connecting tube, ensuring it remains within a suitable temperature range. This guarantees the appropriate temperature for the medication entering the body, improving patient comfort and preventing blockage caused by freezing, which would hinder the normal flow of fluid within the connecting tube.

[0006] Preferably, the organizing bracket includes a main board, which is horizontally arranged along its length. An upper support plate extends upward from the top of the main board, and a lower support plate extends downward from the bottom of the main board. Multiple upper and lower support plates are provided, and the upper and lower support plates are alternately arranged along the length of the main board. A fixing buckle is provided at the end of the upper support plate away from the main board and at the end of the lower support plate away from the main board. The fixing buckle is detachably connected to the connecting pipe, and the heating device is installed on the main board.

[0007] Preferably, the fixing buckle is a ring-shaped structure, and the ring-shaped structure is provided with a first opening for the connecting pipe to enter, the width of the first opening being smaller than the diameter of the connecting pipe.

[0008] Preferably, the motherboard is further provided with a heat preservation box, the heating device is installed inside the heat preservation box, and the heat preservation box is provided with a through hole through which the connecting pipe can pass.

[0009] Preferably, the insulated box is a box structure with one side open, the side of the insulated box facing the main board is the open side, the through holes are formed on the upper and lower surfaces of the insulated box, the heating device is disposed on the bottom surface inside the insulated box, one end of the insulated box is rotatably connected to the main board, and the other end of the insulated box is provided with a fastening component, which is detachably connected to the main board.

[0010] Preferably, the fastening component is a first magnetic component, and a second magnetic component is provided on the motherboard, wherein the first magnetic component and the second magnetic component are magnetically connected.

[0011] Preferably, the motherboard is further provided with a retaining ring.

[0012] Preferably, the fixing ring is provided with a second opening, and threaded holes are provided through both ends of the fixing ring at the opening, and the threaded holes are threadedly connected to the fastening bolts.

[0013] Preferably, the heating device is an electric heating plate, which is in close contact with the wall of the connecting pipe, and the side of the electric heating plate facing the connecting pipe has an arc-shaped groove structure.

[0014] Preferably, a flow controller is also provided on the connecting pipe.

[0015] Compared with existing technologies, the advantages of this invention are as follows: A three-way switch is provided on the connecting tube, allowing medical personnel to inject or withdraw liquid from the connecting tube without disassembling the bag, thus improving the convenience and efficiency of operation and reducing the risk of infection. A fixing bracket is provided for installing and organizing the connecting tube, preventing tangling caused by free changes in the tube's shape. A heating device is also provided on the fixing bracket to ensure the liquid in the connecting tube is at a suitable temperature, improving patient comfort and preventing the connecting tube from freezing and causing blockage. Attached Figure Description

[0016] Figure 1 This is a perspective view of the three-way switch drainage bag of this utility model;

[0017] Figure 2 This is a perspective view of the fixing bracket in the three-way switch drain bag of this utility model;

[0018] Figure 3 This is a three-dimensional view of the heat preservation box in the three-way switch drainage bag of this utility model.

[0019] In the attached diagram: 1. Bag body; 2. Discharge pipe; 3. Connecting pipe; 4. Three-way switch; 5. Organizing bracket; 6. Heating device; 7. Fixing ring; 8. Flow controller; 51. Main board; 52. Upper support plate; 53. Lower support plate; 54. Fixing buckle; 55. Insulation box; 56. First magnetic suction component; 57. Second magnetic suction component; 71. Second opening; 541. First opening; 551. Through hole. Detailed Implementation

[0020] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0021] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0022] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0023] Example 1

[0024] like Figure 1As shown, a three-way switch drainage bag includes a bag body 1, with an outlet pipe 2 connected to the lower end of the bag body 1 and a connecting pipe 3 connected to the upper end of the bag body 1. A three-way switch 4 is installed at the end of the connecting pipe 3 away from the bag body 1. A sorting bracket 5 is installed on the connecting pipe 3 between the three-way switch 4 and the bag body 1. The connecting pipe 3 and the sorting bracket 5 are detachably connected, and a heating device 6 is also installed on the sorting bracket 5. The bag body 1 is used to collect and contain liquids excreted by the human body or drugs to be delivered into the human body. The upper end of the bag body 1 is connected to the connecting pipe 3, and the lower end of the bag body 1 is provided with the outlet pipe 2. The connecting pipe 3 is located above the outlet pipe 2. Liquid flows into the bag body 1 from the connecting pipe 3 and finally exits from the outlet pipe 2. This design uses the weight of the liquid itself to restrict its flow to only the outlet pipe 2 from the connecting pipe 3, preventing backflow. When the drainage bag is used to drain bodily fluids, the connecting tube 3 is connected to the body; when the drainage bag is used to administer medication, the connecting tube 3 is connected to the medication, and the outlet tube 2 is connected to the body. During the use of the drainage bag, medical personnel often need to extract bodily fluids from the drainage bag for testing or inject medication into the drainage bag as needed. The connecting tube 3 is also equipped with a three-way switch 4, which is connected to the connecting tube 3. Medical personnel can use the three-way switch 4 to extract liquid or inject medication into the drainage bag without disassembling the bag body 1, thereby improving the convenience and efficiency of operation and reducing the risk of infection. To adapt to different usage environments, the connecting tube 3 is generally quite long, allowing the drainage bag to transfer liquid over a considerable distance. When the transfer distance is short, the longer portion of the connecting tube 3 will accumulate, which can easily become tangled and affect the normal operation of the connecting tube 3. Therefore, a organizing bracket 5 is also provided. The organizing bracket 5 can accommodate and organize the connecting tube 3, giving the connecting tube 3 a specific and unchanging shape. This ensures that the connecting tube 3 will not become entangled due to free shape changes, thus affecting its normal function. The drainage bag body 1 and the connecting tube 3 are located outside the body. The temperature of the liquid in the bag body 1 and the connecting tube 3 is affected by the environment. When the temperature is low, the temperature of the liquid entering the body will be too low, affecting the patient's comfort. When the temperature is too low, the liquid in the connecting tube 3 may freeze, causing blockage and preventing the drainage of bodily fluids or the injection of medication. Therefore, the organizing bracket 5 is also equipped with a heating device 6. The heating device 6 can heat the liquid in the connecting tube 3, thereby ensuring that the liquid in the connecting tube 3 is within a suitable temperature range, ensuring that the temperature of the medication entering the body is appropriate, improving the patient's comfort, and preventing the liquid in the connecting tube 3 from freezing and causing blockage, thus affecting the normal flow of liquid within the connecting tube 3.

[0025] like Figure 1 , 2As shown, the organizing bracket 5 includes a main board 51, which is horizontally positioned along its length. An upper support plate 52 extends upwards from the top of the main board 51, and a lower support plate 53 extends downwards from the bottom of the main board 51. Multiple upper and lower support plates 52 and 53 are provided, alternating along the length of the main board 51. A fixing buckle 54 is provided at the end of the upper support plate 52 furthest from the main board 51 and at the end of the lower support plate 53 furthest from the main board 51. The fixing buckle 54 is detachably connected to the connecting pipe 3. The heating device 6 is mounted on the main board 51. The main board 51 is the main body of the organizing bracket 5. The fixing buckles 54 are used to fix the connecting pipe 3. Adjacent fixing buckles 54 are fixed to the ends of the upper and lower support plates 52 and 53, respectively, so that the distance between adjacent fixing buckles 54 is as large as possible. This distance is the length of the organizing connecting pipe 3 that the fixing buckle 54 can fix. Multiple upper support plates 52 and lower support plates 53 are provided, and they are alternately arranged along the length of the main plate 51. This allows the connecting pipe 3 to be installed in a serpentine pattern on multiple upper support plates 52 and lower support plates 53, thereby organizing and fixing the connecting pipe 3 to the longest possible length, ensuring that the middle section of the connecting pipe 3 does not move freely and become entangled. At the same time, the connecting pipe 3 can be fixed with different lengths by installing it on different numbers of upper support plates 52 and lower support plates 53 to adapt to different usage scenarios.

[0026] like Figure 1 As shown, the fixing buckle 54 is a ring-shaped structure with a first opening 541 for the connecting tube 3 to enter. The width of the first opening 541 is smaller than the diameter of the connecting tube 3. The ring-shaped structure matches the shape of the connecting tube 3, and the connecting tube 3 is installed inside the ring-shaped structure. The fixing buckle 54 restricts the position of the connecting tube 3 within the ring-shaped structure. The first opening 541 on the ring-shaped structure allows the connecting tube 3 to pass through, and it can be used to detach and install the connecting tube 3. The width of the first opening 541 is smaller than the diameter of the connecting tube 3. The connecting tube 3 is generally soft and elastic, easily deformed and able to return to its original shape. When installing or removing the connecting tube, simply press the connecting tube 3 to deform it, allowing the connecting tube 3 to pass through the first opening 541. Once the first opening 541 enters the annular structure, the connecting tube 3 is no longer pressed. Under its own elasticity, the connecting tube 3 returns to its original shape, and its diameter is larger than the width of the first opening 541, so that the connecting tube 3 can no longer pass through the first opening 541 on its own, thereby achieving the function of fixing the connecting tube 3.

[0027] like Figure 1As shown, the mainboard 51 also includes a heat preservation box 55, and the heating device 6 is installed inside the heat preservation box 55. The heat preservation box 55 has a through hole 551 through which the connecting pipe 3 can pass. A closed space is formed inside the heat preservation box 55, and the heating device 6 is installed within this closed space, ensuring that the heat generated by the heating device 6 is not dissipated into the environment, thus improving energy utilization efficiency. The through hole 551 on the heat preservation box 55 allows the connecting pipe 3 to pass through. When the connecting pipe 3 passes through the heat preservation box 55, the heat in the heat preservation box 55 is transferred to the connecting pipe 3, thereby heating the liquid inside the connecting pipe 3. The connecting pipe 3 can be configured to pass through the heat preservation box 55 multiple times, thereby increasing the number of times the connecting pipe 3 is heated and enhancing the heating effect.

[0028] like Figure 3 As shown, the insulated box 55 is a box structure with one open side. The side of the insulated box 55 facing the main board 51 is the open side. Through holes 551 are formed on the upper and lower surfaces of the insulated box 55. The heating device 6 is located on the bottom surface inside the insulated box 55. One end of the insulated box 55 is rotatably connected to the main board 51, and the other end of the insulated box 55 is provided with a fastening component, which is detachably connected to the main board 51. The insulated box 55 is a box structure with one open side facing the main board 51. The main board 51 can close the open side of the insulated box 55, thus forming a closed space within the insulated box 55, thereby reducing the amount of material required for its manufacture. The through holes 551 on the upper and lower surfaces of the insulated box 55 provide a channel for the connecting pipe 3 to pass through. One end of the insulation box 55 is rotatably connected to the main board 51, forming a flip-top structure. When installing or removing the connecting tube 3, simply opening the insulation box 55 is sufficient; manual threading of each connecting tube 3 through the through-hole 551 is unnecessary, thus improving installation efficiency. The other end of the insulation box 55 is equipped with a fastening element, which is detachably connected to the main board 51. This fastening element restricts relative rotation between the insulation box 55 and the main board 51, preventing the insulation box 55 from accidentally tipping out during use.

[0029] like Figure 1 As shown, the fastening component is a first magnetic component 56, and a second magnetic component 57 is provided on the main board 51. The first magnetic component 56 and the second magnetic component 57 are magnetically connected. The first magnetic component 56 and the second magnetic component 57 can be connected by magnetic force. The structure is simple and easy to disassemble, making it suitable for application scenarios that require frequent connection and disassembly.

[0030] Example 2

[0031] This embodiment is similar to Embodiment 1 above, except that, as Figure 2 As shown, a retaining ring 7 is also provided on the motherboard 51. The retaining ring 7 is used to fix the motherboard 51 to the infusion stand.

[0032] like Figure 2As shown, the fixing ring 7 has a second opening 71, and threaded holes are provided through both ends of the second opening 71 on the fixing ring 7. The threaded holes are threadedly connected to the fastening bolts 72. The frame of the infusion stand can be completely fixed inside the fixing ring 7 through the second opening 71. The threaded holes are provided through both ends of the second opening 71 on the fixing ring 7, and the threaded holes are threadedly connected to the fastening bolts. After the frame of the infusion stand enters the fixing ring 7, the second opening 71 is closed by the threaded connection of the fastening bolts 72 with the threaded holes. Then, by continuously rotating the fastening bolts 72, the space inside the fixing ring 7 is reduced, and finally the fixing ring 7 is in close contact with the surface of the frame of the infusion stand. The friction between the fixing ring 7 and the infusion stand is used to fix the main board 51.

[0033] Example 3

[0034] This embodiment is similar to Embodiment 1 above, except that, as Figure 3 As shown, the heating device 6 is an electric heating plate, which is in close contact with the wall of the connecting pipe 3. The side of the electric heating plate facing the connecting pipe 3 has an arc-shaped groove structure. The electric heating plate 6 features stable and safe heating. The close contact between the electric heating plate and the wall of the connecting pipe 3 allows the heat generated by the electric heating plate to be directly transferred to the connecting pipe 3, improving the efficiency of heat transfer. The arc-shaped groove structure on the side of the electric heating plate facing the connecting pipe 3 matches the shape of the outer wall of the connecting pipe 3. This design increases the contact area between the wall of the connecting pipe 3 and the electric heating plate, improving the efficiency of heat transfer. Furthermore, the arc-shaped groove structure restricts the position of the connecting pipe 3.

[0035] like Figure 1 As shown, a flow controller 8 is also provided on the connecting pipe 3. The flow controller 8 exerts a pressure effect on the connecting pipe 3. By pressing the connecting pipe 3, the flow controller 8 causes the connecting pipe 3 to deform, thereby changing the cross-sectional area within the connecting pipe 3 that allows liquid to flow, and thus achieving control over the liquid flow rate.

[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A three-way switch drainage bag, characterized in that, Includes a bag body (1), the lower end of the bag body (1) is connected to a liquid outlet pipe (2), the upper end of the bag body (1) is connected to a connecting pipe (3), a three-way switch (4) is provided at the end of the connecting pipe (3) away from the bag body (1), an organizing bracket (5) is provided on the connecting pipe (3) between the three-way switch (4) and the bag body (1), the connecting pipe (3) and the organizing bracket (5) are detachably connected, and a heating device (6) is also provided on the organizing bracket (5).

2. The three-way switch drainage bag according to claim 1, characterized in that, The organizing bracket (5) includes a main board (51), which is horizontally arranged along its length. An upper support plate (52) extends upward from the top of the main board (51), and a lower support plate (53) extends downward from the bottom of the main board (51). Multiple upper support plates (52) and lower support plates (53) are provided. The upper support plates (52) and lower support plates (53) are alternately arranged along the length of the main board (51). A fixing buckle (54) is provided at the end of the upper support plate (52) away from the main board (51) and at the end of the lower support plate (53) away from the main board (51). The fixing buckle (54) is detachably connected to the connecting pipe (3). The heating device (6) is installed on the main board (51).

3. A three-way switch drainage bag according to claim 2, characterized in that, The fixing buckle (54) is a ring structure, and the ring structure is provided with a first opening (541) for the connecting pipe (3) to enter. The width of the first opening (541) is smaller than the diameter of the connecting pipe (3).

4. A three-way switch drainage bag according to claim 2, characterized in that, The motherboard (51) is also provided with a heat preservation box (55), and the heating device (6) is installed inside the heat preservation box (55). The heat preservation box (55) is provided with a through hole (551) through which the connecting pipe (3) can pass.

5. A three-way switch drainage bag according to claim 4, characterized in that, The heat preservation box (55) is a box structure with one side open. The side of the heat preservation box (55) facing the main board (51) is an open surface. The through hole (551) is opened on the upper and lower surfaces of the heat preservation box (55). The heating device (6) is set on the bottom surface inside the heat preservation box (55). One end of the heat preservation box (55) is rotatably connected to the main board (51). The other end of the heat preservation box (55) is provided with a fastening member. The fastening member is detachably connected to the main board (51).

6. A three-way switch drainage bag according to claim 5, characterized in that, The fastening component is a first magnetic component (56), and a second magnetic component (57) is provided on the main board (51). The first magnetic component (56) and the second magnetic component (57) are magnetically connected.

7. A three-way switch drainage bag according to claim 2, characterized in that, The motherboard (51) is also provided with a fixing ring (7).

8. A three-way switch drainage bag according to claim 7, characterized in that, The fixing ring (7) is provided with a second opening (71), and threaded holes are provided through both ends of the second opening (71) on the fixing ring (7), and the threaded holes are threadedly connected to the fastening bolts.

9. A three-way switch drainage bag according to claim 1, characterized in that, The heating device (6) is an electric heating plate, which is in close contact with the wall of the connecting pipe (3). The side of the electric heating plate facing the connecting pipe (3) has an arc-shaped groove structure.

10. A three-way switch drainage bag according to claim 1, characterized in that, A flow controller (8) is also provided on the connecting pipe (3).