A multi-sided, anti-clogging negative pressure drainage tube
By installing a protective shell and a limiting rod structure on the drainage tube, the problem of obstruction caused by patient squeezing is solved, achieving drainage stability and convenient replacement, and improving the effectiveness of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN KANGJIE RUBBER PROD CO LTD
- Filing Date
- 2025-03-25
- Publication Date
- 2026-06-30
AI Technical Summary
Existing drainage tubes are easily compressed when patients turn over or twist their bodies, leading to poor drainage and affecting the effectiveness of use.
A multi-sided, anti-clogging negative pressure drainage tube was designed, including a first tube body and a second tube body. The second tube body is provided with a protective shell, and the protective shell is provided with a limiting rod and a connecting tube. The length is adjusted by serpentine winding and the limiting rod to prevent the patient from squeezing. Combined with a detachable cover plate structure, it is easy to replace and install.
It effectively prevents drainage obstruction caused by patient compression, increases the applicability of the device, and facilitates the replacement and reuse of the drainage tube.
Smart Images

Figure CN224421591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage tube technology, and in particular to a negative pressure drainage tube with multiple side holes to prevent clogging. Background Technology
[0002] A drainage tube is a medical device primarily used to drain fluids, gases, or pus. It is typically used post-operatively or at infected sites to promote healing and prevent complications. Multi-port, anti-clogging negative pressure drainage tubes feature side holes that allow for more comprehensive contact with the wound, thus more effectively draining wound exudate. Compared to traditional single-point drainage, the multi-port design ensures no exudate buildup, achieving thorough drainage of the entire wound surface. Furthermore, due to the presence of side holes, even if part of the drainage tube becomes blocked by exudate or blood clots, other side holes can still function, reducing the risk of complete blockage.
[0003] CN215135520U discloses a negative pressure drainage tube, which includes a tube body with an array of conversion components fastened to it. A fixing component for securing the negative pressure drainage tube is also fitted onto the tube body. A connecting component for fastening the tube body is fixed to one end of the tube body, and a connecting block is fixed to the other end. One side of the connecting block has a thread, and an array of support blocks is fixed to one side of the connecting block. A triangular block for supporting the tube body is fixed to the other side, and the triangular block is fastened to the support block. An array of mounting blocks is fixed to the tube body, and a first through hole is fixed to each mounting block. Symmetrically distributed elastic balls are fixed within the first through hole, and a mounting groove is fixed to each mounting block. This practical tube body has a mounting groove, and the conversion components are located within the mounting groove for easy cleaning and drainage. During cleaning, the drainage tube is closed to prevent backflow. The support block and triangular block secure the tube body, and the fixing component is used to accommodate excess tube material.
[0004] However, similar to the drainage tubes mentioned above, when in use, because there is no protection for the tube body, when the patient turns over or twists their body, the tube body is easily pressed down, which can cause drainage obstruction and affect its use. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-sided, anti-clogging negative pressure drainage tube.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A multi-sided hole anti-clogging negative pressure drainage tube includes a first tube body and a second tube body, which are fixedly disposed between the first tube body and the second tube body. The outer wall of the second tube body is provided with a protective shell, and the top of the protective shell is provided with a cover plate. Multiple first limiting rods are fixedly connected to both ends of the bottom inner wall of the protective shell. The second tube body is wrapped around the outer wall of the multiple first limiting rods, and the second tube body is serpentine.
[0008] The present invention is further configured such that a plurality of second limiting rods are fixedly connected to the middle position of the bottom inner wall of the protective shell.
[0009] The present invention is further configured such that a plurality of side holes are provided on the outer circumferential wall of the first tube.
[0010] The present invention is further configured such that connecting pipes are provided on both sides of the protective shell, the first pipe is inserted into one of the connecting pipes, and the second pipe is inserted into the other connecting pipe.
[0011] The present invention is further configured such that connecting plates are fixedly connected to the middle of both ends of the cover plate, fixing plates are fixedly connected to the outer walls of both ends of the protective shell, an installation socket is provided on the top of the connecting plate, an installation insert plate adapted to the installation socket is fixedly connected to the top of the fixing plate, and movable grooves are provided on both sides of the installation insert plate, with limit blocks slidably provided on the inner wall of the movable groove.
[0012] The present invention is further configured such that a limiting spring is fixedly connected between the limiting block and the movable groove.
[0013] The present invention is further configured such that the side of the limiting block away from the limiting spring is designed to be inclined.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. When using this multi-sided anti-clogging negative pressure drainage tube, first place the second tube body inside the protective shell and wrap it in a serpentine shape around multiple first limiting rods. Then, it passes through the connecting tube and the first tube body passes through another connecting tube. The protective shell protects the second tube body to prevent the patient from squeezing the second tube body and causing the drainage tube to become blocked.
[0016] 2. When the length of the second tube needs to be adjusted according to the usage scenario, the second tube can be removed from the first limiting rod and limited by the bottom of the second limiting rod, thereby increasing the exposed length of the second tube and increasing the applicability of the device.
[0017] 3. After the multi-sided hole anti-clogging negative pressure drainage tube is used, the limiting block can be pressed to retract into the movable groove. At this time, the cover plate can be removed upwards, and the first tube and the second tube can be quickly removed. The protective shell can be reused, and a new tube can be installed again to facilitate the replacement of the drainage tube. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of a multi-sided hole anti-clogging negative pressure drainage tube proposed in this utility model;
[0019] Figure 2 This is a first state diagram of the second tube body and the first limiting rod of a multi-sided hole anti-clogging negative pressure drainage tube proposed in this utility model.
[0020] Figure 3 This is a second state diagram of the second tube body and the first limiting rod of a multi-sided hole anti-clogging negative pressure drainage tube proposed in this utility model.
[0021] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A;
[0022] Figure 5 This is a front cross-sectional view of the limiting block and limiting spring of a multi-sided hole anti-clogging negative pressure drainage tube proposed in this utility model.
[0023] In the diagram: 1. First tube body; 2. Side hole; 3. Connecting tube; 4. Protective shell; 5. Cover plate; 6. Second tube body; 7. First limiting rod; 8. Second limiting rod; 9. Fixing plate; 10. Connecting plate; 11. Mounting plate; 12. Limiting block; 13. Mounting socket; 14. Movable groove; 15. Limiting spring. Detailed Implementation
[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0025] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.
[0026] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent 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. Therefore, they should not be construed as limitations on this patent.
[0027] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.
[0028] Reference Figure 1 and Figure 2 A multi-sided hole anti-clogging negative pressure drainage tube includes a first tube body 1 and a second tube body 6, which are fixedly disposed between the first tube body 1 and the second tube body 6. A protective shell 4 is provided on the outer wall of the second tube body 6, and a cover plate 5 is provided on the top of the protective shell 4. Multiple first limiting rods 7 are fixedly connected to both ends of the bottom inner wall of the protective shell 4. The second tube body 6 is wrapped around the outer wall of the multiple first limiting rods 7, and the second tube body 6 is serpentine.
[0029] Reference Figure 3 Multiple second limiting rods 8 are fixedly connected to the middle of the bottom inner wall of the protective housing 4. The length of the second tube 6 protruding from the protective housing 4 can be adjusted by the second limiting rods 8 to make it suitable for different scenarios.
[0030] Reference Figure 1 The outer circumferential wall of the first tube 1 is provided with multiple side holes 2. The design of multiple side holes 2 can ensure that exudate does not accumulate and achieve thorough drainage of the entire wound. At the same time, due to the existence of side holes 2, even if part of the drainage tube is blocked by exudate or blood clots, other side holes 2 can still continue to work, reducing the risk of complete blockage of the drainage tube.
[0031] Reference Figure 1 , Figure 4 and Figure 5Both sides of the protective shell 4 are provided with connecting pipes 3. The first pipe 1 is inserted into one of the connecting pipes 3, and the second pipe 6 is inserted into the other connecting pipe 3. The connecting pipes 3 facilitate the protection of the first pipe 1. The middle of both ends of the cover plate 5 are fixedly connected with connecting plates 10, and the outer walls of both ends of the protective shell 4 are fixedly connected with fixing plates 9. The top of the connecting plate 10 is provided with a mounting socket 13, and the top of the fixing plate 9 is fixedly connected with a mounting plate 11 that matches the mounting socket 13. Both sides of the mounting plate 11 are provided with movable grooves 14. A limiting block 12 is slidably provided on the inner wall of the movable groove 14. The installation plate 11, the installation socket 13 and the limiting block 12 facilitate the installation and removal of the cover plate 5. A limiting spring 15 is fixedly connected between the limiting block 12 and the movable groove 14. The limiting spring 15 facilitates the rapid outward movement of the limiting block 12 when it passes through the installation socket 13. The side of the limiting block 12 away from the limiting spring 15 is inclined. The inclined design facilitates the installation socket 13 to squeeze the limiting block 12 and retract it into the movable groove 14, thereby facilitating the installation of the cover plate 5.
[0032] Working principle: When in use, the second tube 6 is first placed inside the protective housing 4 and wound around the multiple first limiting rods 7 in a serpentine shape. Then it passes through the connecting tube 3 and the first tube 1 passes through another connecting tube 3. The protective housing 4 protects the second tube 6 to prevent the patient from squeezing the second tube 6 and causing the drainage tube to become blocked.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multi-sided, anti-clogging negative pressure drainage tube, comprising a first tube body (1) and a second tube body (6), characterized in that, The first tube (1) and the second tube (6) are fixedly disposed together. The outer wall of the second tube (6) is provided with a protective shell (4). The top of the protective shell (4) is provided with a cover plate (5). Multiple first limiting rods (7) are fixedly connected to both ends of the bottom inner wall of the protective shell (4). The second tube (6) is wrapped around the outer wall of the multiple first limiting rods (7), and the second tube (6) is serpentine.
2. The multi-sided, anti-clogging negative pressure drainage tube according to claim 1, characterized in that, Multiple second limiting rods (8) are fixedly connected to the middle of the bottom inner wall of the protective shell (4).
3. The multi-sided, anti-clogging negative pressure drainage tube according to claim 1, characterized in that, The outer circumferential wall of the first tube (1) is provided with multiple side holes (2).
4. A multi-sided, anti-clogging negative pressure drainage tube according to claim 1, characterized in that, The protective housing (4) is provided with connecting pipes (3) on both sides. The first pipe (1) is inserted into one of the connecting pipes (3), and the second pipe (6) is inserted into the other connecting pipe (3).
5. A multi-sided, anti-clogging negative pressure drainage tube according to claim 4, characterized in that, The cover plate (5) is fixedly connected to the middle of both ends of the cover plate (5), and the outer walls of both ends of the protective shell (4) are fixedly connected to the fixing plates (9). The top of the connecting plate (10) is provided with an installation socket (13). The top of the fixing plate (9) is fixedly connected with an installation plate (11) that is compatible with the installation socket (13). The two sides of the installation plate (11) are provided with movable grooves (14), and the inner wall of the movable groove (14) is slidably provided with a limit block (12).
6. A multi-sided, anti-clogging negative pressure drainage tube according to claim 5, characterized in that, A limiting spring (15) is fixedly connected between the limiting block (12) and the movable groove (14).
7. A multi-sided, anti-clogging negative pressure drainage tube according to claim 6, characterized in that, The side of the limiting block (12) away from the limiting spring (15) is designed to be inclined.