Drainage tube for abscess effusion drainage
By introducing an inflatable structure and drainage components into the drainage tube, the problems of limited flow and patient discomfort in abscess effusion were solved, achieving smooth drainage of pus and a comfortable drainage effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI CHANGZHENG HOSPITAL
- Filing Date
- 2025-01-16
- Publication Date
- 2026-05-26
Smart Images

Figure CN224269817U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, specifically a drainage tube for draining abscess effusion. Background Technology
[0002] Drainage tubes are mainly used to drain various fluids from a patient's body, such as urine and effusion. In actual use, to minimize discomfort to the patient during insertion, smaller drainage tubes are usually chosen. This is because smaller tubes cause less stimulation to human tissues when inserted, thus reducing patient pain to some extent.
[0003] However, for patients with special conditions like abscess effusion, the abscess contains a large amount of thick pus. To ensure the rigidity of the drainage tube during insertion, only one drainage port is usually provided, limiting the flow rate of fluid into the tube. When using a smaller drainage tube, its smaller diameter makes it difficult for the pus to drain smoothly through the tube, preventing timely and effective drainage and further worsening the condition, posing greater health risks to the patient. Increasing the tube diameter solely to improve drainage will cause greater irritation to the tissues during insertion, leading to more intense discomfort for the patient.
[0004] Therefore, drainage tubes are needed for draining abscess effusions to meet the special drainage needs of patients with abscess effusions. Utility Model Content
[0005] The purpose of this invention is to provide a drainage tube for draining purulent effusion. This drainage tube can effectively solve the drainage problem for patients with purulent effusion, ensure smooth drainage of pus, and avoid excessive discomfort to patients due to tube diameter issues.
[0006] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a drainage tube for draining abscess effusion, comprising a tube body, a plug on one side of the tube body, a fluid guiding connector and an inflation connector on the other side of the tube body, an inflation structure and a drainage port on the side of the tube body near the plug, a drainage cavity communicating between the drainage port and the fluid guiding connector, an inflation cavity communicating between the inflation structure and the inflation connector, and a flow guiding component on the side of the tube body near the plug, the flow guiding component being able to increase the flow rate of liquid flowing into the drainage cavity.
[0007] In some embodiments, the inflation structure includes an inflation groove located on the side of the tube near the plug and communicating with the inflation chamber, and an air bladder is provided inside the inflation groove.
[0008] In some embodiments, the flow guiding assembly includes a flow guiding port located on the side of the tube body near the plug and communicating with the drainage cavity. A through hole is provided on the side of the flow guiding port away from the plug, and a sliding groove is provided on the side of the through hole away from the flow guiding port. The sliding groove communicates with the inflation groove. One end of the airbag is fixedly connected to the inner wall of the inflation groove, and the other end is slidably and sealingly connected to the sliding groove. A sealing membrane is provided in the middle of the through hole, and a sealing block is slidably provided on the side of the through hole near the sliding groove. One end of the sealing block is fixedly connected to the airbag, and the other end is attached to the sealing membrane.
[0009] In some embodiments, a limiting groove is provided on the side of the flow guide port away from the sealing membrane, and the limiting groove is inserted into the sealing block.
[0010] In some embodiments, the sliding groove is provided with a backstop groove, and the airbag is provided with a backstop block, the backstop block being slidably and sealingly disposed within the backstop groove.
[0011] In some embodiments, the elastic coefficient of the airbag is greater than that of the sealing membrane.
[0012] In some embodiments, both the liquid guide connector and the air inlet connector are tapered.
[0013] In some embodiments, a control clamp is provided between the tube body and the liquid guide connector.
[0014] In summary, this utility model has the following beneficial effects:
[0015] This invention utilizes a flow-guiding component that opens the flow-guiding port when the airbag inflates, thereby increasing the channel for liquid to enter the drainage cavity and improving the flow rate of liquid into the drainage cavity. This solves the problem of poor drainage caused by a single flow-guiding port and small tube diameter when draining purulent effusion, improving drainage efficiency and facilitating the discharge of pus from the patient's body, preventing the condition from worsening due to poor drainage. At the same time, it eliminates the need to increase the tube diameter to achieve drainage, avoiding the discomfort caused by excessively large tubes and better balancing drainage effect and patient comfort. Attached Figure Description
[0016] Figure 1 This is a structural diagram of the present invention in use;
[0017] Figure 2 This is a schematic diagram of the structure of this utility model;
[0018] Figure 3 This utility model Figure 1 Enlarged view of point A in the image;
[0019] Figure 4This utility model Figure 1 Enlarged view of point B in the image;
[0020] Figure 5 This utility model Figure 2 Enlarged view of point C in the image.
[0021] In the diagram: 1. Tube body; 2. Plug; 3. Liquid guide connector; 4. Inflation connector; 5. Inflation structure; 51. Inflation groove; 52. Airbag; 6. Drainage port; 7. Drainage chamber; 8. Inflation chamber; 9. Flow guide assembly; 91. Flow guide port; 92. Through hole; 93. Sliding groove; 94. Sealing membrane; 95. Sealing block; 96. Limiting groove; 97. Anti-reverse groove; 98. Anti-reverse block. Detailed Implementation
[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] refer to Figure 1-5 A drainage tube for draining effusion from abscess cavities includes a tube body 1, which is the main structure of the drainage tube. A plug 2 is provided on one side of the tube body 1 to facilitate insertion of the drainage tube into the patient's body at the site to be drained. A fluid-conducting connector 3 and an inflation connector 4 are provided on the other side of the tube body 1. The fluid-conducting connector 3 and the inflation connector 4 are responsible for the external connection of urinary catheterization and inflation, respectively. An inflation structure 5 and a drainage port 6 are provided on the side of the tube body 1 near the plug 2. A drainage cavity 7 is connected between the drainage port 6 and the fluid-conducting connector 3. The drainage port 6 introduces the fluid to be drained into the drainage cavity 7. An inflation cavity 8 is connected between the inflation structure 5 and the inflation connector 4. A drainage component 9 is also provided on the side of the tube body 1 near the plug 2, which works in conjunction with the drainage port 6 to increase the flow rate of fluid into the drainage cavity 7.
[0024] In some embodiments, the inflation structure 5 includes an inflation groove 51, which is located on the side of the tube body 1 near the plug 2 and communicates with the inflation chamber 8, so as to facilitate inflation of the inflation groove 51 from the inflation connector 4. An air bladder 52 is provided in the inflation groove 51. Gas is inflated or injected into the air bladder 52 in the inflation groove 51 through the inflation connector 4, so that the air bladder 52 expands and fixes the drainage tube in the bladder or other locations where drainage is to be performed.
[0025] In some embodiments, the flow guiding assembly 9 includes a flow guiding port 91, which is located on the side of the tube body 1 near the plug 2 and communicates with the drainage cavity 7. The flow guiding port 91 serves as an inlet for flow, providing an additional channel for liquid to enter the drainage cavity 7. By increasing the connection area between the liquid and the drainage cavity 7, more liquid to be drained flows into the drainage cavity 7, thereby ensuring that the liquid to be drained can be smoothly discharged from the body through the drainage cavity 7. A through hole 92 is provided on the side of the flow port 91 away from the plug 2. A sealing membrane 94 is provided in the middle of the through hole 92. The sealing membrane 94 can seal the through hole 92 and the flow port 91. A sliding groove 93 is provided on the side of the through hole 92 away from the flow port 91. The sliding groove 93 is connected to the inflation groove 51. One end of the airbag 52 is fixedly connected to the inner wall of the inflation groove 51, and the other end is slidably and sealed to the sliding groove 93. The sliding sealing connection is existing technology and will not be described in detail here. Thus, when the airbag 52 is inflated or filled with water, it drives the sealing block 95 to slide in the sliding groove 93. The sealing block 95 is slidably provided on the side of the through hole 92 near the sliding groove 93. One end of the sealing block 95 is fixedly connected to the airbag 52, and the other end is attached to the sealing membrane 94. Under the push of the inflation of the airbag 52, the sealing block 95 moves squarely towards the inflation groove 51, and the sealing membrane 94 is reset, thereby opening the flow port 91 and realizing multi-channel and multi-directional flow of the flow tube.
[0026] In some embodiments, a limiting groove 96 is provided on the side of the flow guide 91 away from the sealing membrane 94. The limiting groove 96 is inserted and engaged with the sealing block 95. The limiting groove 96 can limit the sliding range of the sealing block 95, allowing it to move within a certain range, thus ensuring the stability and reliability of the flow guide assembly 9.
[0027] In some embodiments, the sliding groove 93 is provided with a backstop groove 97, and the airbag 52 is provided with a backstop block 98. The backstop block 98 is slidably and sealed in the backstop groove 97. The cooperation between the backstop groove 97 and the backstop block 98 can prevent the airbag 52 from sliding out of the sliding groove 93 during the sliding process, thereby ensuring the positional stability of the airbag 52 during inflation and operation, and avoiding the normal use of the guide tube due to positional movement.
[0028] In some embodiments, the elastic coefficient of the airbag 52 is greater than that of the sealing membrane 94. When the inflatable structure 5 is inflated, the airbag 52 has a larger elastic coefficient, resulting in a relatively larger expansion speed and expansion force. During the inflation process, the airbag 52 pushes the sealing block 95 to slide towards the inflation groove 51 within the through hole 92, thereby resetting the sealing membrane 94 and opening the guide port 91 that was originally sealed by the sealing membrane 94. This allows the liquid to flow more easily into the drainage cavity 7, increasing the liquid flow rate. At the same time, the anti-reverse block 98 slides within the anti-reverse groove 97, ensuring that the airbag 52 will not retract during the inflation process, thus maintaining the stability of the structure. When the air in the inflatable structure 5 is deflated, the airbag 52 has a large elastic coefficient, and its expansion speed and expansion force are relatively large. The pushing force of the airbag 52 on the sealing block 95 is greater than the resistance of the sealing membrane 94 on the sealing block 95, so that the sealing block 95 moves in the through hole 92 toward the limiting groove 96 and is inserted into the limiting groove 96 to close the guide port 91, thereby increasing the overall rigidity of the guide tube and facilitating the insertion of the guide tube.
[0029] In some embodiments, both the fluid guide connector 3 and the air inflator 4 are tapered, which facilitates connection with corresponding external devices, improves the tightness and stability of the connection, and ensures the smooth progress of the catheterization and air inflation process.
[0030] In some embodiments, a control clamp is provided between the tube body 1 and the fluid inlet connector 3, which can control the opening and closing of the drainage cavity 7. The drainage cavity 7 can be closed or opened at any time as needed, which facilitates the operation and control of the catheterization process by medical staff.
[0031] In some embodiments, an isolation membrane is sealed on the inflation groove 51. The isolation membrane can expand along with the airbag 52, which can isolate the inflation structure 5 from the external environment and prevent the external environment from affecting the airbag 52 when it expands and slides.
[0032] The specific working principle is as follows:
[0033] In practical use, in the initial state, because the sealing membrane 94 is pushed by the sealing block 95 and engages with the limiting groove 96, the drainage port 91 is in a closed state. At this time, the overall rigidity of the drainage tube is relatively high, making it easy for medical staff to accurately insert the plug 2 into the corresponding drainage site of the patient. Figure 1-2 As shown, during insertion, the soft material of tube 1 and the smooth design of plug 2 can effectively reduce damage and irritation to human tissues and reduce patient pain.
[0034] Once the drainage tube is inserted, to secure its position, medical staff inflate the inflation chamber 8 through the inflation connector 4. The gas passes through the inflation chamber 8 into the inflation groove 51, causing the airbag 52 to inflate and thus fixing the drainage tube to the corresponding drainage site. As the airbag 52 inflates, one end slides within the sliding groove 93, pushing the sealing block 95 towards the inflation groove 51. This movement of the sealing block 95 causes the sealing membrane 94 to reset and retract into the through hole 92, opening the channel of the drainage port 91. At this time, the drainage port 61 and the drainage port 91 work simultaneously, providing more channels for fluid to enter the drainage chamber 7, thereby increasing the flow rate of fluid into the drainage chamber 7. Fluids such as purulent effusion can then enter the drainage chamber 7 more smoothly and be discharged through the drainage connector 3, thus achieving drainage. Simultaneously, the inflated airbag 52 firmly secures the drainage tube to the corresponding drainage site, preventing displacement or detachment.
[0035] During use, if maintenance or replacement of the drainage tube is required, medical staff can close the drainage cavity 7 using the control clamp and then extract the gas from the airbag 52 through the inflation connector 4. As the airbag 52 contracts, the sealing block 95 moves towards the limiting groove 96 under the elastic force of the sealing membrane 94, re-engaging with the limiting groove 96 and closing the drainage port 91. At this point, the rigidity of the drainage tube returns to normal, making it easier for medical staff to remove it from the patient's body. When replacing a new drainage tube, the above insertion, fixation, and drainage steps are repeated.
[0036] In summary, this application, through the design of the inflatable structure 5 and the flow guiding component 9, solves the problems of limited flow and patient discomfort faced by traditional drainage tubes when draining fluids such as purulent effusions. In clinical applications, the drainage tube can effectively improve drainage efficiency, ensuring that pus and other fluids in the patient's body can be drained from the body in a timely and smooth manner, preventing the condition from worsening due to poor drainage. At the same time, since there is no need to increase the tube diameter, patient discomfort during insertion and use is significantly reduced, improving the patient's treatment experience and compliance. It should be noted that all components of the drainage tube are made of medical-grade materials, ensuring safety and reliability during long-term use.
[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A drainage tube for pus cavity effusion drainage, comprising a tube body (1), one side of the tube body (1) is provided with a plug (2), the other side of the tube body (1) is provided with a liquid guide connector (3) and an inflation connector (4), characterized in that: The tube body (1) is provided with an inflation structure (5) and a drainage port (6) on the side near the plug (2). The drainage port (6) is connected to the liquid guide connector (3) through a drainage cavity (7). The inflation structure (5) is connected to the inflation connector (4) through an inflation cavity (8). The tube body (1) is also provided with a flow guide component (9) on the side near the plug (2). The flow guide component (9) can increase the flow rate of liquid flowing into the drainage cavity (7).
2. The drainage tube for draining abscess effusion according to claim 1, characterized in that: The inflation structure (5) includes an inflation groove (51), which is located on the side of the tube (1) near the plug (2) and communicates with the inflation chamber (8). An airbag (52) is provided in the inflation groove (51).
3. The drainage tube for draining abscess effusion according to claim 2, characterized in that: The flow guiding component (9) includes a flow guiding port (91), which is located on the side of the tube body (1) near the plug (2) and communicates with the drainage cavity (7). A through hole (92) is provided on the side of the flow guiding port (91) away from the plug (2). A sliding groove (93) is provided on the side of the through hole (92) away from the flow guiding port (91). The sliding groove (93) communicates with the inflation groove (51). One end of the airbag (52) is fixedly connected to the inner wall of the inflation groove (51), and the other end is slidably and sealed to the sliding groove (93). A sealing membrane (94) is provided in the middle of the through hole (92). A sealing block (95) is slidably provided on the side of the through hole (92) near the sliding groove (93). One end of the sealing block (95) is fixedly connected to the airbag (52), and the other end is attached to the sealing membrane (94).
4. The drainage tube for draining abscess effusion according to claim 3, characterized in that: The guide port (91) is provided with a limiting groove (96) on the side away from the sealing membrane (94), and the limiting groove (96) is inserted into the sealing block (95).
5. The drainage tube for draining abscess effusion according to claim 3, characterized in that: The sliding groove (93) is provided with a backstop groove (97), and the airbag (52) is provided with a backstop block (98). The backstop block (98) is slidably and sealed in the backstop groove (97).
6. The drainage tube for draining abscess effusion according to claim 3, characterized in that: The elastic coefficient of the airbag (52) is greater than that of the sealing membrane (94).
7. The drainage tube for draining abscess effusion according to claim 1, characterized in that: Both the liquid guide connector (3) and the air inlet connector (4) are conical.
8. The drainage tube for draining abscess effusion according to claim 1, characterized in that: A control clamp is provided between the tube body (1) and the liquid guide connector (3).