An adjustable leak-proof drainage device
By introducing an annular inflatable airbag and fixing components into the drainage bag, the problem of leakage at the connection of the drainage bag was solved, and the sealing and stability of the drainage bag were achieved, ensuring the smooth progress of the drainage process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN PEOPLES HOSPITAL
- Filing Date
- 2025-04-25
- Publication Date
- 2026-07-24
AI Technical Summary
Existing drainage bags are prone to leakage at the connection between the catheter and the drainage bag, causing liquid seepage and affecting the effectiveness of use.
An adjustable leak-proof drainage device was designed, including a drainage bag body, a suction cup, a transparent attachment bag, an annular inflatable airbag, and a fixing component. The annular inflatable airbag is sealed to the drainage tube, and the drainage tube is fixed by the fixing component to prevent leakage.
It effectively prevents liquid leakage from the drainage bag, improves the sealing and practicality of the drainage device, and ensures the stability and visibility of the drainage process.
Smart Images

Figure CN224540672U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to an adjustable anti-leakage drainage device. Background Technology
[0002] In the medical field, drainage bags are used to drain and collect abnormal or excess fluid from the body through catheters. This helps healthcare professionals observe the amount, color, and nature of the fluid to assess the patient's condition, while also reducing the adverse effects of fluid accumulation on tissues and promoting patient recovery. When using these bags, it is crucial to maintain sterility of the drainage system to prevent backflow and infection.
[0003] In existing technologies, the common practice for connecting the catheter and the drainage bag is to directly make a hole in the drainage bag, then insert the catheter through the hole and place it inside the patient's body to collect leaked exudate and drainage fluid. However, this simple hole-making method has obvious drawbacks. Because the drainage bag is usually made of a relatively soft material, it is difficult to form a tight seal between the hole and the drainage catheter after making the hole. During the patient's daily activities and changes in body position, the fluid inside the drainage bag can easily seep out from the gap between the hole and the catheter, causing leakage problems.
[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content
[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a leak-proof drainage bag, which aims to solve the problem of leakage caused by the passage of a tube through the drainage bag body in the prior art.
[0006] The technical solution adopted by this utility model to solve the technical problem is as follows:
[0007] An adjustable anti-leakage drainage device, comprising:
[0008] The drainage bag body has a drainage port on one side;
[0009] A suction cup is provided on the side of the drainage bag body where the drainage port is opened, for fixing the drainage bag body;
[0010] A transparent attachment bag is disposed on the side of the drainage bag body away from the suction cup; a connection hole is provided between the transparent attachment bag and the drainage bag body, and an opening is provided at the bottom of the transparent attachment bag;
[0011] An annular inflatable airbag is disposed within the opening; the outer surface of the annular inflatable airbag is connected to the inner wall of the opening;
[0012] A drainage catheter, one end of which is left inside the patient's body, and the other end of which passes through the drainage port, the connecting hole, and the annular inflatable balloon and is located outside the patient;
[0013] A fixing component is disposed on one side of the drainage bag body and is used to fix the drainage tube.
[0014] Furthermore, a guide tube is provided at the connection hole, a bracket is provided inside the drainage port, one end of the guide tube is fixed to the bracket, one end of the drainage catheter is left inside the patient's body, and the other end passes through the guide tube.
[0015] Furthermore, the guide tube is a folded tube.
[0016] Furthermore, one end of the guide tube is sealed to the connection hole.
[0017] Furthermore, the fixing component includes:
[0018] A fixing plate is detachably mounted on one side of the drainage bag body;
[0019] Two rotating rods are symmetrically mounted on the fixed plate.
[0020] Two arc-shaped fixing plates are respectively rotatably mounted on the rotating rod;
[0021] Two magnets are respectively disposed inside the two arc-shaped fixing plates and located on the opposite side of the two arc-shaped fixing plates. The two magnets attract each other, and under the action of the two magnets, the two arc-shaped fixing plates can cooperate to form a circular hole for fixing the drainage tube.
[0022] Furthermore, the arc-shaped fixing plate has an arc-shaped groove inside, the magnet block is slidably disposed in the arc-shaped groove, one end of the magnet block is provided with a pull rope, the end of the pull rope away from the magnet block is wound around the rotating rod, an arc-shaped spring is provided on the inner wall of the arc-shaped groove near the rotating rod, and the other end of the arc-shaped spring is provided on the side wall of the magnet block.
[0023] Furthermore, an arc-shaped inflatable airbag is provided on the concave side of the arc-shaped fixing plate.
[0024] Furthermore, an adhesive layer is provided on one side of the fixing plate.
[0025] Furthermore, an annular anti-slip strip is provided on the inner side of the annular inflatable airbag.
[0026] Furthermore, the transparent accessory bag and the drainage bag body are integrally formed.
[0027] Compared with the prior art, the beneficial effects of this utility model are:
[0028] In this invention, a drainage port is provided on one side of the drainage bag body, corresponding to the fistula opening, for collecting drainage fluid leaking from the fistula. A suction cup is provided on one side of the drainage bag body, and a transparent attachment bag is provided on the side of the drainage bag body away from the suction cup. A connection hole is provided between the transparent attachment bag and the drainage bag body, and an opening is provided at the bottom of the transparent attachment bag. An annular inflatable airbag is placed inside the opening, and the outer surface of the annular inflatable airbag is connected to the inner wall of the opening. A drainage tube is placed inside the annular inflatable airbag and sealed in place. A fixing component is also provided on one side of the drainage bag body for fixing the drainage tube. By setting a transparent attachment bag on one side of the drainage bag body and communicating with the drainage bag body, one end of the drainage tube is left in the patient's body, and the other end passes through the drainage bag body and the transparent attachment bag. At the same time, the drainage tubes of different diameters can be fixed and sealed by the annular inflatable air bag, which effectively prevents leakage from the transparent attachment bag. At the same time, the drainage tube is effectively fixed externally by the annular inflatable air bag and the fixing component on the drainage bag body, which improves its practicality. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0030] Figure 2 This is a schematic diagram of the suction cup structure of this utility model.
[0031] Figure 3 This is a cross-sectional view of the drainage bag body of this utility model.
[0032] Figure 4 This is a schematic diagram of the fixing component structure of this utility model.
[0033] Figure 5 This is a schematic diagram of the arc-shaped fixing plate structure of this utility model.
[0034] The numbers in the diagram represent: 1. Drainage bag body; 11. Drainage port; 12. Guide tube; 13. Support; 2. Suction cup; 3. Transparent accessory bag; 31. Opening; 4. Annular inflatable airbag; 5. Fixing component; 51. Fixing plate; 52. Rotating rod; 53. Arc-shaped fixing plate; 54. Magnet block; 55. Pull rope; 56. Arc-shaped spring; 57. Arc-shaped inflatable airbag; 58. Arc-shaped groove. Detailed Implementation
[0035] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, 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 only used to explain this utility model and are not intended to limit this utility model.
[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0037] 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.
[0038] In view of the shortcomings of the prior art, this embodiment provides an adjustable anti-leakage drainage device, which can be referred to as follows:
[0039] As attached Figure 1 and attached Figure 2As shown, an adjustable leak-proof drainage device includes a drainage bag body 1, a suction cup 2, a transparent attachment bag 3, an annular inflatable airbag 4, a drainage tube, and a fixing assembly 5. A drainage port 11 is provided on one side of the drainage bag body 1, corresponding to the patient's fistula. A suction cup 2 is also provided on one side of the drainage bag body 1, used to adhere to the patient's body and align the drainage port 11 with the fistula. A transparent attachment bag 3 is provided on the side of the drainage bag body 1 away from the suction cup 2. A connecting hole is provided between the transparent attachment bag 3 and the drainage bag body 1, meaning the transparent attachment bag 3 and the drainage bag body 1 are connected through the connecting hole. An opening 31 is provided at the bottom of the transparent attachment bag 3. An annular inflatable airbag 4 is provided inside the opening 31. The annular inflatable airbag 4 can be inflated and deflated. The outer surface of the annular inflatable airbag 4 is connected to the inner wall of the opening 31. A drainage tube is provided inside the annular inflatable airbag 4. By inflating air into the annular inflatable airbag 4, the annular inflatable airbag 4 can come into contact with the drainage tube and seal and fix the drainage tube. One end of the drainage tube is left in the patient's body, and the other end passes through the drainage port 11, the connecting hole and the middle hole of the annular inflatable airbag 4, and is located outside the patient. A fixing component 5 is also provided on one side of the drainage bag body 1. The fixing component 5 is used to fix the drainage tube at the bottom of the transparent bag 3.
[0040] Specifically, one end of the drainage catheter is placed inside the patient's body, and the other end of the drainage catheter passes through the drainage port 11, the connecting hole, and the annular inflatable balloon 4. At this time, the drainage bag can be fixed to the patient's body by the suction cup 2. Then, by inflating the annular inflatable balloon 4, the inner surface of the annular inflatable balloon 4 abuts against the outer surface of the drainage catheter, sealing and fixing the drainage catheter. Then, the bottom of the drainage catheter is placed in the fixing component 5, thus completing the arrangement of the leak-proof drainage bag. By setting a transparent attachment bag 3 on one side of the drainage bag body 1 and communicating with the drainage bag body 1, one end of the drainage catheter remains inside the patient's body, and the other end passes through the transparent attachment bag 3 and the drainage bag body 1 for drainage. At the same time, the annular inflatable balloon 4 can fix and seal drainage catheters of different diameters, effectively preventing leakage of the transparent attachment bag 3 and improving its practicality.
[0041] In this embodiment, the connecting hole is located at the upper part of the transparent bag 3 and the drainage bag body 1, which can effectively prevent the exudate in the drainage bag body 1 from entering the transparent bag 3. Even if it enters the transparent bag 3, it can be stored in the transparent bag 3 by the sealing effect of the annular inflatable airbag 4 and the drainage tube. The exudate can be clearly seen through the transparent bag 3, which is convenient for subsequent treatment. At the same time, the transparent bag 3 can also be used to restrict the movement of the drainage tube and improve the stability of the drainage tube.
[0042] In this embodiment, an inflation valve is provided on the outside of the annular inflatable airbag 4. This inflation valve is existing technology and can be used for inflation and deflation, thereby adjusting the sealing fit between the annular inflatable airbag 4 and drainage tubes of different diameters.
[0043] One embodiment of this application is shown in the appendix. Figure 2 and attached Figure 3 As shown, a guide tube 12 is provided at the connection hole, and a bracket 13 is provided inside the drainage port 11. One end of the guide tube 12 is fixed to the bracket 13. One end of the drainage tube is left inside the patient's body, and the other end can pass through the guide tube 12 and the middle hole of the annular inflatable balloon 4, located outside the patient, for drainage. By providing a guide tube 12 between the connection hole and the drainage port 11, the guide tube 12 can be folded, which can effectively improve the insertion efficiency of the drainage tube. The foldable guide tube 12 can maintain the curvature of the drainage tube when it is fixed and can be designed arbitrarily, which can effectively improve comfort, prevent kinking, and avoid local pressure.
[0044] In this embodiment, the guide tube 12 is a foldable tube, which allows the guide tube 12 to be folded, making it convenient to fold and store the drainage bag and the transparent bag 3, thus improving convenience; at the same time, folding it into a flexible tube not only provides guidance and support for the drainage catheter, but also allows it to undergo small deformations as the drainage catheter is inserted, so as to facilitate the fixation and placement of the drainage catheter.
[0045] In this embodiment, one end of the guide tube 12 is sealed to the connection hole. The guide tube 12 is located inside the connection hole, and its outer surface is connected to the transparent attachment bag 3 and the drainage bag body 1, so that the connection hole is in a closed state. Without affecting the passage of the drainage tube, the connection hole between the transparent attachment bag 3 and the drainage bag body 1 is sealed, which can further prevent the leakage of exudate in the drainage bag body 1.
[0046] One embodiment of this application is shown in the appendix. Figure 4 As shown, the fixing component 5 includes a fixing plate 51, two rotating rods 52, two arc-shaped fixing plates 53, and two magnet blocks 54. The fixing plate 51 is detachably mounted on one side of the drainage bag body 1. The two rotating rods 52 are symmetrically mounted on the fixing plate 51. The two arc-shaped fixing plates 53 are rotatably mounted on the rotating rods 52. The magnet blocks 54 are located inside the two arc-shaped fixing plates 53 at the ends away from the rotating rods 52. The two magnet blocks 54 are opposite magnets and attract each other.
[0047] When it is necessary to fix the drainage tube, the drainage tube can be placed between two arc-shaped fixing plates 53, and then the two arc-shaped fixing plates 53 are rotated towards each other. Under the action of the two magnets 54, the two arc-shaped fixing plates 53 are closed to form a circular hole, and the drainage tube is located in the circular hole. The two arc-shaped fixing plates 53 can squeeze and fix the drainage tube under the action of the two magnets 54.
[0048] In this embodiment, when the two arc-shaped fixing plates 53 fix the drainage tube, the two ends of the two arc-shaped fixing plates 53 away from the rotating rod 52 are in a gap state, so that the two arc-shaped fixing plates 53 can exert a squeezing force on the drainage tube.
[0049] In this embodiment, as shown in the appendix Figure 5 As shown, the two arc-shaped fixing plates 53 are provided with arc-shaped grooves 58 inside. The magnet block 54 is arc-shaped and is slidably disposed in the arc-shaped groove 58. One end of the magnet block 54 is provided with a pull rope 55. The end of the pull rope 55 away from the magnet block 54 is wound around the rotating rod 52. An arc-shaped spring 56 is provided on the inner wall of the arc-shaped groove 58 near the rotating rod 52. The other end of the arc-shaped spring 56 is provided on the side wall of the magnet block 54. Thus, the magnet blocks 54 are all located in the arc-shaped groove 58 at the end away from the rotating rod 52, so that when the two arc-shaped fixing plates 53 cooperate with each other, the two magnet blocks 54 attract each other and provide squeezing force on the drainage tube.
[0050] Specifically, the arc-shaped spring 56 prevents the magnet 54 from sliding to the side closer to the rotating rod 52, thus preventing the two magnets 54 from engaging. One end of the pull rope 55 is attached to the magnet 54, and the other end is wrapped around the rotating rod 52. This allows the magnet 54 to be pulled when the two arc-shaped fixing plates 53 rotate towards each other, and relaxed when they rotate away from each other. Under the action of the arc-shaped spring 56, the magnet 54 slides into the arc-shaped groove 58 away from the rotating rod 52. This ensures that the distance between the two magnets 54 is nearly equal when the two arc-shaped fixing plates 53 rotate, resulting in a nearly equal interaction force between them. This ensures that the pressure on the drainage tubes is consistent when fixing drainage tubes of different diameters, preventing the force of the magnets 54 from being too great when the two arc-shaped fixing plates 53 are close, thus avoiding the situation where the force of the magnets 54 is too small when the gap between the two arc-shaped fixing plates 53 is large, preventing the drainage tube from being unable to be fixed.
[0051] In this embodiment, as shown in the appendix Figure 4 and attached Figure 5As shown, an arc-shaped inflatable airbag 57 is provided on the concave side of the two arc-shaped fixing plates 53. An inflation valve is provided on one side of the arc-shaped inflatable airbag 57. The inflation valve is existing technology. Through an external inflation device and an inflation valve, air can be inflated into the arc-shaped inflatable airbag 57, and air can also be deflated through the inflation valve.
[0052] The arc-shaped inflatable airbag 57 effectively increases the contact area between the two arc-shaped fixing plates 53 and the drainage tube. Since the two arc-shaped fixing plates 53 are fixed, the contact area may be too small to provide effective compressive force for drainage tubes of different diameters. This application provides an arc-shaped inflatable airbag 57 above the recessed inner wall of the two arc-shaped fixing plates 53. When fixing drainage tubes of different diameters, the arc-shaped inflatable airbag 57 can contact the drainage tube. The two arc-shaped fixing plates 53 compress the arc-shaped inflatable airbag 57, causing it to deform to a certain extent, thus better cooperating with the drainage tube and achieving fixation.
[0053] In this embodiment, an adhesive layer is provided on one side of the fixing plate 51, which allows the fixing plate 51 to be adhered to the drainage bag body 1; at the same time, it is convenient to disassemble and store the fixing component 5 when it is not needed.
[0054] In this embodiment, an annular protective strip is provided on the inner side of the annular inflatable airbag 4, which can improve the fixation and sealing of the drainage tube.
[0055] Furthermore, an arc-shaped protective strip is provided on the inner side of the arc-shaped inflatable airbag 57 to enhance the squeezing and fixing effect on the drainage tube.
[0056] In this embodiment, the transparent bag 3 and the drainage bag body 1 can be integrated; double-sided adhesive can also be provided at the connection point between the transparent bag 3 and the drainage bag body 1 to fix the two together, thereby fixing the drainage tube.
[0057] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.
Claims
1. An adjustable leak-proof drainage device, characterized in that, include: The drainage bag body has a drainage port on one side; A suction cup is provided on the side of the drainage bag body where the drainage port is opened, for fixing the drainage bag body; A transparent attachment bag is disposed on the side of the drainage bag body away from the suction cup; a connection hole is provided between the transparent attachment bag and the drainage bag body, and an opening is provided at the bottom of the transparent attachment bag; An annular inflatable airbag is disposed within the opening; the outer surface of the annular inflatable airbag is connected to the inner wall of the opening; A drainage catheter, one end of which is left inside the patient's body, and the other end of which passes through the drainage port, the connecting hole, and the annular inflatable balloon and is located outside the patient; A fixing component is disposed on one side of the drainage bag body and is used to fix the drainage tube.
2. The adjustable anti-leakage drainage device according to claim 1, characterized in that, A guide tube is provided at the connection hole, and a bracket is provided inside the drainage port. One end of the guide tube is fixed to the bracket, and one end of the drainage catheter is left inside the patient's body, while the other end passes through the guide tube.
3. The adjustable anti-leakage drainage device according to claim 2, characterized in that, The guide tube is a folded tube.
4. The adjustable anti-leakage drainage device according to claim 2, characterized in that, One end of the guide tube is sealed to the connection hole.
5. The adjustable anti-leakage drainage device according to claim 1, characterized in that, The fixing component includes: A fixing plate is detachably mounted on one side of the drainage bag body; Two rotating rods are symmetrically mounted on the fixed plate. Two arc-shaped fixing plates are respectively rotatably mounted on the rotating rod; Two magnets are respectively disposed inside the two arc-shaped fixing plates and located on the opposite side of the two arc-shaped fixing plates. The two magnets attract each other, and under the action of the two magnets, the two arc-shaped fixing plates can cooperate to form a circular hole for fixing the drainage tube.
6. The adjustable anti-leakage drainage device according to claim 5, characterized in that, The arc-shaped fixing plate has an arc-shaped groove inside, and the magnet block is slidably disposed in the arc-shaped groove. One end of the magnet block is provided with a pull rope, and the end of the pull rope away from the magnet block is wound around the rotating rod. An arc-shaped spring is provided on the inner wall of the arc-shaped groove near the rotating rod, and the other end of the arc-shaped spring is provided on the side wall of the magnet block.
7. An adjustable anti-leakage drainage device according to claim 6, characterized in that, An arc-shaped inflatable airbag is provided on the concave side of the arc-shaped fixing plate.
8. An adjustable anti-leakage drainage device according to claim 5, characterized in that, An adhesive layer is provided on one side of the fixing plate.
9. An adjustable anti-leakage drainage device according to claim 1, characterized in that, The inner side of the annular inflatable airbag is provided with an annular anti-slip strip.
10. An adjustable anti-leakage drainage device according to claim 1, characterized in that, The transparent bag is integrated with the drainage bag body.