Abdominal cavity drainage device with flushing pipeline
By designing an abdominal drainage device with its own flushing channel, combining drainage and flushing functions, the problems of low drainage efficiency and easy blockage of existing devices are solved, improving patient comfort and rehabilitation outcomes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN HOSPITAL FUDAN UNIV
- Filing Date
- 2025-02-07
- Publication Date
- 2026-05-05
AI Technical Summary
Existing abdominal drainage devices suffer from low drainage efficiency, easy blockage, and poor patient comfort, failing to meet clinical needs.
An abdominal drainage device with a built-in flushing tube was designed. The drainage tube has a sandwich structure, with the inner tube responsible for drainage and the sandwich area used for flushing. The water injection and drainage inlets are evenly distributed to achieve a combination of drainage and flushing, clearing blood clots and pus from the sinus tract.
It improves drainage efficiency, reduces the risk of blockage, lowers the risk of infection, and enhances patient comfort and mobility.
Smart Images
Figure CN224193828U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to an abdominal drainage device with a built-in flushing tube. Background Technology
[0002] In modern medicine, abdominal drainage is a crucial step after surgical procedures, especially gastrointestinal surgeries. Post-operatively, the surgical wound typically produces a large amount of exudate, including blood, tissue fluid, and potentially digestive juices. If this exudate is not drained promptly and effectively, it can easily lead to abdominal infection, resulting in abdominal abscess, systemic inflammatory response syndrome, and in severe cases, septic shock, endangering the patient's life. Therefore, proper placement of drainage tubes is essential for preventing and controlling postoperative complications and promoting patient recovery.
[0003] Currently, the most commonly used drainage tubes in clinical practice are latex tubes and silicone tubes. Latex tubes provide passive drainage, relying primarily on the gravity of the fluid and the pressure difference between tissues. Their drainage efficiency is relatively low, and after prolonged use, they are prone to blockage due to blood clots, necrotic tissue, and other substances in the exudate, leading to poor drainage. Once drainage is impaired, bacteria can multiply rapidly within the sinus tract of the drainage tube, worsening the infection, forming sinus abscesses, and further hindering the patient's recovery. While silicone tubes improve drainage to some extent, enabling active drainage, they also cannot avoid the problem of blockage.
[0004] To address the issue of drainage tube blockage, existing double-tube drainage devices employ active flushing to irritate the sinus tract and prevent blockage. However, double tubes have several drawbacks, such as their relatively thick and rigid material, which causes significant tissue irritation and intense discomfort to patients upon insertion; their passive drainage effect is poor and fails to meet clinical needs; furthermore, the device requires continuous negative pressure flushing via a wall connection, forcing patients to remain in bed for extended periods, severely restricting their activity and causing considerable inconvenience to their lives and recovery.
[0005] In summary, existing abdominal drainage devices have shortcomings in terms of drainage efficiency, prevention of blockage, and patient comfort, failing to adequately meet actual clinical needs. Therefore, developing a novel abdominal drainage device that can achieve efficient drainage, effectively prevent blockage, and improve patient comfort and convenience is of significant clinical importance. Utility Model Content
[0006] The purpose of this invention is to overcome the defects of the existing technology and provide an abdominal drainage device with a built-in flushing tube, which provides a powerful means to remove blood clots, necrotic tissue and pus from the drainage tube sinus tract, reduce abdominal infection and promote wound healing.
[0007] The objective of this utility model can be achieved through the following technical solutions:
[0008] This utility model provides an abdominal drainage device with a built-in flushing pipe:
[0009] The drainage tube body is a tube structure with a sandwich structure, including an outer tube, an inner tube, and a water injection cavity located in the sandwich area between the inner tube and the outer tube;
[0010] The water inlet pipe is connected to the first end of the drainage pipe body and communicates with the water injection chamber;
[0011] A water injection notch and a drainage notch are provided at the second end of the drainage pipe body. The water injection notch is connected to the water injection cavity, and the drainage notch is connected to the inner pipe.
[0012] A drainage outlet tube is connected to the first end of the drainage tube body and communicates with the inner tube;
[0013] The liquid collection assembly is connected to the drainage outlet pipe.
[0014] Furthermore, the liquid collection assembly includes a liquid collection bottle, a connecting tube, and a flow-stopping clamp;
[0015] One end of the connecting tube is sealed to the drainage outlet tube via a threaded connection or a sealing plug, and the other end is connected to the collection bottle. The flow-stopping clamp is installed on the connecting tube to control the flow of the drainage fluid.
[0016] Furthermore, the collection bottle is made of transparent material and has graduations on its surface, ranging from 0ml to 1000ml, for observing the amount of drainage fluid;
[0017] The surface of the collection bottle is also marked with the patient's name, gender, department, bed number, and date for recording patient information.
[0018] Furthermore, the connecting tube is made of flexible silicone tubing.
[0019] Furthermore, multiple water injection notches are provided at the second end of the drainage pipe body, and are evenly distributed along the outer periphery of the drainage pipe body wall.
[0020] Furthermore, after the aqueous solution is pushed into the water inlet pipe, the aqueous solution flows along the water injection cavity and flows out from the water injection gap.
[0021] Furthermore, multiple drainage notches are provided at the second end of the drainage tube body, and are evenly distributed along the outer periphery of the tube wall.
[0022] Furthermore, the drainage tube body is made of silicone rubber.
[0023] Furthermore, a label is provided at one end of the drainage tube near the water inlet pipe and the drainage outlet pipe to record the flushing time.
[0024] Furthermore, after cleaning, the liquid flows into the inner tube through the drainage notch, and then flows to the liquid collection assembly through the drainage outlet pipe.
[0025] Compared with the prior art, the present invention has the following beneficial effects:
[0026] This invention, through its unique structural design, integrates drainage and irrigation functions. The inner tube of the drainage tube is responsible for drainage, while the water injection chamber in the interlayer is used for flushing. Drainage and water injection notches are evenly distributed at the second end of the drainage tube. The rational layout of the drainage notches improves drainage efficiency, ensuring timely drainage of surgical wound exudate. The water injection notches allow for even flow of irrigation fluid, providing comprehensive flushing of the drainage tube sinus tract, effectively removing blood clots, necrotic tissue, and pus, significantly reducing the risk of abdominal infection due to drainage tube blockage and creating favorable conditions for wound healing. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the drainage tube body in this utility model;
[0028] Figure 2 This is a schematic diagram showing the connection between the water inlet pipe and the drainage outlet pipe in this utility model;
[0029] Figure 3 and 4 This is a schematic diagram showing the arrangement of the water injection notch and the drainage notch in this utility model;
[0030] Figure 5 This is a schematic diagram of the liquid collection component in this utility model.
[0031] In the diagram: Drainage tube body-0, outer tube-001, inner tube-002, water injection chamber-102, water injection inlet tube-101, water injection notch-103, drainage related: drainage notch-203, drainage outlet tube-201, label-204, collection bottle-303, connecting tube-304, and shut-off clamp-302. Detailed Implementation
[0032] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.
[0033] Example 1
[0034] See Figures 1 to 5In this embodiment, the abdominal drainage device with its own flushing pipe includes the following related structures: drainage tube body 0, outer tube 001, inner tube 002, and water injection chamber 102; water injection structure: water injection inlet pipe 101 and water injection notch 103; drainage related structures: drainage notch 203, drainage outlet pipe 201, and label 204; and liquid collection assembly related structures: liquid collection bottle 303, connecting pipe 304, and intercepting clamp 3.
[0035] The drainage tube body 0 is a tube structure with a sandwich structure, including an outer tube 001, an inner tube 002, and a water injection cavity 102 located in the sandwich area between the inner tube 002 and the outer tube; the water injection inlet pipe 101 is connected to the first end of the drainage tube body 0 and communicates with the water injection cavity 102; the water injection notch 103 and the drainage notch 203 are opened at the second end of the drainage tube body 0, the water injection notch 103 communicates with the water injection cavity 102, and the drainage notch 203 communicates with the inner tube 002; the drainage outlet pipe 201 is connected to the first end of the drainage tube body 0 and communicates with the inner tube 002; the liquid collection assembly is connected to the drainage outlet pipe 201.
[0036] The fluid collection assembly includes a collection bottle 303, a connecting tube 304, and a flow-stopping clamp 302. One end of the connecting tube 304 is sealed to the drainage outlet tube 201 via a threaded connection or a sealing plug, and the other end is connected to the collection bottle 303. The flow-stopping clamp 302 is mounted on the connecting tube 304 and is used to control the flow of drainage fluid. The collection bottle 303 is made of transparent material and has graduations on its surface, ranging from 0 ml to 1000 ml, for observing the amount of drainage fluid. The surface of the collection bottle 303 is also marked with the patient's name, gender, department, bed number, and date for recording patient information.
[0037] In practice, the connecting tube 304 is a flexible silicone hose. One end of the connecting tube 304 is sealed to the drainage outlet tube 201 via a pagoda connector 301.
[0038] Multiple water injection notches 103 are provided at the second end of the drainage pipe body 0 and are evenly distributed along the outer circumference of the pipe wall of the drainage pipe body 0. After the aqueous solution is pushed in from the water injection inlet pipe 101, the aqueous solution flows along the water injection cavity 102 and flows out from the water injection notches 103.
[0039] Multiple drainage notches 203 are provided at the second end of the drainage tube body 0 and are evenly distributed along the outer periphery of the tube wall of the drainage tube body 0.
[0040] The drainage tube body 0 is made of silicone rubber. A label 204 is provided at one end of the drainage tube body 0 near the water inlet pipe 101 and the drainage outlet pipe 201 for recording the flushing time.
[0041] After cleaning, the liquid flows into the inner tube 002 through the drainage notch 203, and then flows to the liquid collection assembly through the drainage outlet tube 201.
[0042] When the abdominal drainage device is in operation, the drainage tube body 0 consists of an outer tube 001 and an inner tube 002, with the interlayer between them forming the water injection chamber 102. When it is necessary to flush the drainage sinus tract, medical staff push in an aqueous solution through the water injection inlet tube 101, and the aqueous solution flows along the water injection chamber 102. Because the water injection notches 103 are evenly distributed along the outer circumference of the tube wall at the second end of the drainage tube body 0, the aqueous solution flows out evenly from these water injection notches 103, flushing the drainage sinus tract from all directions, thereby effectively removing blood clots, necrotic tissue, and pus from the sinus tract.
[0043] Surgical wound exudate and other drainage fluids flow into the inner tube 002 through drainage notches 203 evenly distributed along the outer circumference of the second end of the drainage tube body 0. After collecting in the inner tube 002, the drainage fluid flows to the collection assembly through the drainage outlet tube 201 connected to the first end of the drainage tube body 0 and communicating with the inner tube 002. One end of the connecting tube 304 in the collection assembly is sealed to the drainage outlet tube 201 via a pagoda connector 301, and the other end is connected to the collection bottle 303. A flow-stopping clamp 302 is installed on the connecting tube 304 to control the flow of drainage fluid. The collection bottle 303 is made of transparent material and has a scale marking from 0ml to 1000ml on its surface, making it convenient for medical staff to observe the amount of drainage fluid. Its surface is also marked with patient information such as name, gender, department, bed number, and date for easy identification. In addition, a label 204 is provided at one end of the drainage tube body 0 near the water inlet pipe 101 and the drainage outlet pipe 201 to record the flushing time.
[0044] When the clamp 302 is squeezed in the closing direction, the clamping components inside the clamp 302 will squeeze the connecting tube 304, making the lumen of the connecting tube 304 smaller or even completely closed, thereby restricting or preventing the drainage fluid from flowing through the connecting tube 304 to the collection bottle 303; when the clamp 302 is released in the opening direction, the connecting tube 304 returns to its original state, the lumen is unobstructed, and the drainage fluid can flow normally into the collection bottle 303 through the connecting tube 304.
[0045] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.
Claims
1. An abdominal drainage device with a built-in flushing pipe, characterized in that, include: The drainage tube body (0) is a tube structure with a sandwich layer, including an outer tube (001), an inner tube (002), and a water injection cavity (102) located in the sandwich area between the inner tube (002) and the outer tube. The water inlet pipe (101) is connected to the first end of the drainage pipe body (0) and communicates with the water injection chamber (102); The water injection notch (103) and the drainage notch (203) are opened at the second end of the drainage tube body (0). The water injection notch (103) is connected to the water injection cavity (102), and the drainage notch (203) is connected to the inner tube (002). The drainage outlet pipe (201) is connected to the first end of the drainage pipe body (0) and communicates with the inner pipe (002); The liquid collection assembly is connected to the drainage outlet pipe (201).
2. The abdominal drainage device with a built-in flushing pipe according to claim 1, characterized in that, The liquid collection assembly includes a liquid collection bottle (303), a connecting pipe (304), and a flow-stopping clamp (302); One end of the connecting tube (304) is sealed to the drainage outlet tube (201) by a threaded connection or a sealing plug, and the other end is connected to the collection bottle (303). The flow clamp (302) is provided on the connecting tube (304) to control the flow of the drainage fluid.
3. The abdominal drainage device with a built-in flushing pipe according to claim 2, characterized in that, The collection bottle (303) is made of transparent material and has graduations on its surface, ranging from 0 ml to 1000 ml, for observing the amount of drainage fluid. The surface of the collection bottle (303) is also marked with name, gender, department, bed number, and date for recording patient information.
4. The abdominal drainage device with a built-in flushing pipe according to claim 2, characterized in that, The connecting tube (304) is made of elastic silicone tubing.
5. The abdominal drainage device with a built-in flushing pipe according to claim 1, characterized in that, Multiple water injection notches (103) are provided at the second end of the drainage pipe (0) and are evenly distributed along the outer periphery of the pipe wall of the drainage pipe (0).
6. The abdominal drainage device with a built-in flushing pipe according to claim 1, characterized in that, After the aqueous solution is pushed into the water inlet pipe (101), the aqueous solution flows along the water injection chamber (102) and flows out from the water injection gap (103).
7. An abdominal drainage device with a built-in flushing pipe according to claim 1, characterized in that, Multiple drainage notches (203) are provided at the second end of the drainage tube (0) and are evenly distributed along the outer periphery of the tube wall of the drainage tube (0).
8. An abdominal drainage device with a built-in flushing pipe according to claim 1, characterized in that, The drainage tube body (0) is made of silicone rubber.
9. An abdominal drainage device with a built-in flushing pipe according to claim 1, characterized in that, The end of the drainage tube (0) near the water inlet pipe (101) and the drainage outlet pipe (201) is equipped with a label (204) for recording the flushing time.
10. An abdominal drainage device with a built-in flushing pipe according to claim 1, characterized in that, After cleaning, the liquid flows into the inner tube (002) through the drainage notch (203) and then flows to the liquid collection assembly through the drainage outlet pipe (201).