Multifunctional drainage tube and positioning assembly thereof
By setting insertion grooves on the drainage tube and combining them with positioning components for suture needles and sutures, the problems of unstable drainage tube fixation and infection risk are solved, achieving convenient, secure fixation and low-cost drainage tube fixation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN GUANGYI MEDICAL INVESTMENT CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-05-08
AI Technical Summary
Existing methods of fixing drainage tubes have problems such as instability, easy detachment, complicated operation, high cost, and infection risk. In particular, existing fixing devices have complex structures, occupy a lot of space, and the tape fixing effect is not good.
A multifunctional drainage tube is designed with a insertion groove on the tube body. The suture is fixed through the insertion groove. Combined with the suture needle and suture of the positioning component, the insertion groove simplifies the fixation process and reduces the risk of infection by guiding and limiting the insertion.
It achieves convenient and secure fixation of the drainage tube, reduces the risk of infection, maintains smooth drainage, has a simple structure, low cost, and can adapt to different usage needs.
Smart Images

Figure CN224207212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a multifunctional drainage tube and its positioning component. Background Technology
[0002] As a medical device, drainage tubes are primarily used for clinical surgical drainage to guide pus, blood, and fluid accumulated between body tissues or in body cavities to the outside of the body, thereby preventing postoperative infection and promoting wound healing. During use, due to their length, drainage tubes are prone to displacement and loosening. To prevent movement and shaking, they need to be secured. In some cases, when the drainage tube needs to be left in the patient's body, it is even more crucial to firmly secure it to prevent it from dislodging from the affected area.
[0003] Currently, in clinical practice, drainage tubes are mostly fixed externally. One method is to use friction for fixation, commonly using medical tape to secure the tube to the skin to prevent displacement. However, because the surface of existing drainage tubes is relatively smooth, the tape is not secure enough and easily falls off, requiring regular tape replacement. Furthermore, some patients are sensitive to the tape or find it difficult to apply it properly at the drainage site. Another method involves wrapping and tightening medical bandages or gauze around the outer wall of the drainage tube. However, due to the relatively smooth surface of the drainage tube, this method of fixing it using friction is not ideal and the tube is prone to falling off.
[0004] Another method involves clamping the drainage tube, usually using specialized fixation devices such as drainage tube clamps or special fixation straps. This method provides a more secure hold, reducing the risk of tube displacement and dislodgement. However, it can easily lead to compression and deformation of the drainage tube, causing blockage and poor drainage. Furthermore, these specialized fixation devices are relatively complex and space-consuming, making them inconvenient to use, especially when the space at the skin interface is limited. In addition, these specialized fixation devices are relatively expensive, increasing the financial burden on patients.
[0005] Another method is fixation by sutures. Generally, after the drainage tube is securely placed, one or two sutures are made at the interface between the drainage tube and the skin to tighten the diameter of the skin interface. Then, the sutures are tied to the drainage tube to fix it in place. This suture fixation is the most secure, but the operation process is relatively complex. The positioning accuracy and firmness mainly rely on the operator's clinical experience, which requires a high level of skill. There is also a risk of infection, requiring strict aseptic operation. How to avoid infection is also a problem that needs to be considered when using drainage tubes.
[0006] Therefore, there is an urgent need for a multifunctional drainage tube and its positioning components that are simple in structure, easy to fix, have good drainage and fixation effects, and effectively reduce the risk of infection to solve the above problems. Utility Model Content
[0007] One objective of this invention is to provide a multifunctional drainage tube that is simple in structure, easy to fix, has good drainage and fixation effects, and effectively reduces the risk of infection.
[0008] Another objective of this invention is to provide a positioning component for fixing the aforementioned multifunctional drainage tube.
[0009] To achieve the above objectives, this utility model discloses a multifunctional drainage tube, which includes a tube body and a through groove disposed on the tube body. The through groove is arranged radially or axially along the tube body and is located between the inner wall and the outer wall of the tube body. An inlet hole and an outlet hole are formed on the outer wall of the tube body. The number of through grooves is one or more, and the multiple through grooves are arranged at intervals along the axial direction of the tube body.
[0010] Compared with existing technologies, the multifunctional drainage tube of this invention includes a tube body and a perforation groove on the tube body. Since the perforation groove is located between the inner and outer walls of the tube body, and an inlet and outlet hole are formed on the outer wall of the tube body, it facilitates the insertion of sutures through the inlet hole into the perforation groove and the exit through the outlet hole. Through the guiding and limiting effect provided by the perforation groove on the tube body, the tube body can be easily and quickly sutured and fixed to the patient's skin. The multifunctional drainage tube of this invention has a simple overall structure, occupies little space, is low in cost, is easy to operate, and is easy to fix. Furthermore, the sutures do not enter the drainage channel, effectively ensuring the smooth flow of the drainage tube and resulting in excellent drainage effect. In addition, the perforation groove can be arranged radially or axially along the tube body, effectively adapting to different usage needs. Furthermore, the number of insertion slots can be one or more, which can be adapted to fixation at different preset positions. The setting of multiple insertion slots can not only further improve the stability of positioning, but also help medical staff to roughly judge the insertion depth of the drainage tube.
[0011] Preferably, the tube body is a rubber tube, silicone tube, or polyurethane tube, and the shape of the tube body is circular, elliptical, square, or hexagonal.
[0012] Preferably, the plurality of the through slots are arranged at equal intervals and are arranged in an aligned or staggered manner.
[0013] Preferably, the through groove is provided at the opposite top end of the tube body and / or the left and right opposite ends of the tube body.
[0014] Preferably, the through groove is arc-shaped, straight, or bent.
[0015] Preferably, the flow guiding channel in the pipe body is arranged along its axial direction, and an inlet and an outlet are formed at its two opposite ends. The opposite end of the pipe body is also provided with a flow outlet near the inlet. The flow outlet penetrates the inner and outer walls of the pipe body radially and is connected to the flow guiding channel.
[0016] Preferably, the multifunctional drainage tube also has a disinfectant for disinfection, which is attached to the insertion groove and disposed in a soluble manner.
[0017] Preferably, the disinfectant comprises a soluble layer and a disinfectant layer. The disinfectant layer is attached to the wall of the insertion tank as a coating. The soluble layer covers the disinfectant layer, which is used to seal the disinfectant layer in the insertion tank and to dissolve and release the drug in the disinfectant layer during the drainage process.
[0018] To achieve the above objectives, this utility model also discloses a positioning component for suturing and fixing the aforementioned multifunctional drainage tube to the patient's skin. The positioning component includes a suture needle and a suture thread. The shape of the suture needle corresponds to the shape of the insertion groove. The opposite tail end of the suture needle has a positioning hole or positioning hook for fixing the suture thread. The suture thread passes through the insertion groove under the drive of the suture needle to suture and fix the tube body to the patient's skin.
[0019] Preferably, the suture needle is a curved needle, the two ends of the suture needle have relatively sharp needle tips, and the suture thread is an absorbable thread or medical thread.
[0020] Compared with existing technologies, the positioning component of this invention can suture and fix the aforementioned multifunctional drainage tube at the patient's drainage port. Because the shape of its suture needle corresponds to the shape of the insertion groove, and the opposite tail end of the suture needle has a positioning hole or positioning hook for fixing the suture, the suture, driven by the suture needle, passes through the insertion groove to suture and fix the tube body to the patient's skin. The overall structure of the positioning component is simple, low in cost, and easy to operate, conveniently and quickly fixing the tube body. Attached Figure Description
[0021] Figure 1 This is a three-dimensional view of the multifunctional drainage tube of this utility model.
[0022] Figure 2 This is a three-dimensional view of the positioning of the multifunctional drainage tube of this utility model through the positioning component.
[0023] Figure 3This is a perspective view of the multifunctional drainage tube of this utility model being positioned by a positioning component.
[0024] Figure 4 This is a cross-sectional view of the multifunctional drainage tube of this utility model.
[0025] Figure 5 This is a plan view of the disinfectant in the multifunctional drainage tube of this utility model. Detailed Implementation
[0026] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0027] See Figures 1 to 5 This invention provides a multifunctional drainage tube 100, mainly for clinical surgical drainage, used to guide pus, blood, and fluid accumulated in human tissues or body cavities to the outside, thereby preventing postoperative infection and promoting wound healing. Generally, the multifunctional drainage tube 100 provided by this invention includes a tube body 10 and insertion grooves 20 disposed on the tube body 10. The insertion grooves 20 are arranged radially or axially along the tube body 10 and are located between the inner wall 11 and the outer wall 12 of the tube body 10. An inlet hole 21 and an outlet hole 22 are formed on the outer wall 12 of the tube body 10. There can be one or more insertion grooves 20, which are arranged at intervals along the axial direction of the tube body 10. The drainage channel of the tube body 10 is arranged along its axial direction, and an inlet and an outlet are formed at its two opposite ends.
[0028] See Figures 1 to 4 Specifically, the tube body 10 is a rubber tube, silicone tube, or polyurethane tube. The shape of the tube body 10 can be circular, elliptical, square, or hexagonal, etc., to meet different usage needs. Correspondingly, the through-groove 20 is arc-shaped, straight, or bent. Specifically, the through-groove 20 is located at the opposite top end and / or the left and right opposite ends of the tube body 10. For example, when the through-groove 20 is located at the opposite top end of the tube body 10, its shape can be arc-shaped or bent, and it is arranged radially along the tube body 10. In this case, the shape of the tube body 10 can be circular, elliptical, or hexagonal. When the through-groove 20 is located at the left and right opposite ends of the tube body 10, its shape can be straight, and it is arranged axially along the tube body 10. In this case, the shape of the tube body 10 can be circular, elliptical, square, or hexagonal. Of course, the pipe body 10 can also have through slots 20 arranged on the top side and the left and right sides of the pipe body 10, thus providing more options.
[0029] See Figures 1 to 4Specifically, when there are multiple insertion slots 20, the multiple insertion slots 20 are arranged at equal intervals, which makes it easier for medical staff to judge the insertion depth of the tube body 10. In addition, the insertion slots 20 can also be arranged in a aligned or staggered manner to meet different usage environments and positioning requirements, making the use more flexible.
[0030] See Figures 1 to 4 Specifically, in some embodiments, a drainage port 30 is provided at the opposite end of the pipe body 10 near its inlet. The drainage port 30 penetrates the inner wall 11 and outer wall 12 of the pipe body 10 radially and communicates with the flow channel of the pipe body 10 to improve the efficiency and smoothness of drainage. To improve drainage efficiency, multiple drainage ports 30 are provided, arranged circumferentially along the pipe body 10, and are aligned or staggered. Furthermore, the shape of the drainage port 30 can be circular, elliptical, or teardrop-shaped, etc.
[0031] Combination Figure 4 and Figure 5 Specifically, in some embodiments, the multifunctional drainage tube 100 provided by this utility model also includes a disinfectant 40 for disinfection. The disinfectant 40 is attached to the insertion groove 20 and is soluble, thereby gradually dissolving and releasing during the drainage process to reduce the risk of infection. Specifically, the disinfectant 40 includes a soluble layer 41 and a disinfectant layer 42. The disinfectant layer 42 is attached to the wall of the insertion groove 20 as a coating. The soluble layer 41 covers the disinfectant layer 42, which is used to seal the disinfectant layer 42 in the insertion groove 20 and dissolve during the drainage process, allowing the drug in the disinfectant layer 42 to dissolve and be released. The soluble layer 41 is a thin film-like substance that can dissolve under specific conditions. It has various components, commonly including high molecular weight polymers such as hydroxypropyl methylcellulose (HPMC), polyvinylpyrrolidone (PVP), and polyethylene glycol (PEG). These components have good film-forming and solubility, allowing the drug to gradually dissolve and be released at the suture site to exert a disinfection effect and reduce the risk of infection. The disinfectant layer 42 can be a disinfectant gel or disinfectant powder, etc. When manufacturing the tube body 10, the disinfectant layer 42 is attached to the insertion groove 20 as a coating. As the tube body 10 changes with human body temperature and accumulates over time, the soluble layer 41 and the disinfectant layer 42 gradually dissolve to release the disinfectant.
[0032] See Figure 2 and Figure 3This utility model also discloses a positioning component 200 for suturing and fixing the multifunctional drainage tube 100 to the skin at the patient's drainage port. The positioning component 200 includes a suture needle 210 and a suture 220. The shape of the suture needle 210 corresponds to the shape of the insertion groove 20. The opposite tail end of the suture needle 210 has a positioning hole or positioning hook for fixing the suture 220. The suture 220 passes through the insertion groove 20 under the action of the suture needle 210 to suture and fix the tube body 10 to the skin at the edge of the patient's drainage port. Specifically, the suture needle 210 is a curved needle, and the opposite head end of the suture needle 210 has a relatively sharp needle tip for easy suturing. The suture 220 is specifically absorbable suture or medical silk suture.
[0033] In practical use, the suture 220, driven by the suture needle 210, passes through the insertion hole 21 of the tube body 10 into the insertion groove 20, and exits through the insertion hole 22 from the insertion groove 20. Thus, through the guiding and limiting effect provided by the insertion groove 20 on the tube body 10, the tube body 10 can be conveniently and quickly sutured and fixed to the skin at the edge of the patient's drainage port.
[0034] Compared with the prior art, the multifunctional drainage tube 100 of this utility model includes a tube body 10 and a through groove 20 provided on the tube body 10. Since the through groove 20 is arranged between the inner wall 11 and the outer wall 12 of the tube body 10, and an inlet hole 21 and an outlet hole 22 are formed on the outer wall 12 of the tube body 10, it is convenient for the suture to pass through the through hole 21 into the through groove 20 and exit through the outlet hole 22 from the through groove 20. Through the guiding and limiting effect provided by the through groove 20 on the tube body 10, the tube body 10 can be easily and quickly sutured and fixed to the patient's skin. The multifunctional drainage tube 100 of this utility model has a simple overall structure, occupies little space, has low cost, is easy to operate, is easy to fix, and is firmly positioned. The suture does not enter the drainage channel, which effectively ensures the smooth flow of the drainage tube 100 and has a good drainage effect. In addition, the insertion groove 20 can be arranged radially or axially along the tube body 10, effectively adapting to different usage requirements and improving adaptability. Furthermore, the number of insertion grooves 20 can be one or more, adapting to the fixing of different preset positions. The setting of multiple insertion grooves 20 can not only further improve the positioning firmness, but also help medical staff to roughly judge the insertion depth of the tube body 10.
[0035] Compared with the prior art, the positioning component 200 of this utility model is used to suture and fix the multifunctional drainage tube 100 to the patient's drainage port. The positioning component 200 includes a suture needle 210 and a suture 220. Since the shape of the suture needle 210 corresponds to the shape of the insertion groove 20, and the opposite tail end of the suture needle 220 has a positioning hole or positioning hook for fixing the suture 220, the suture 220 is driven by the suture needle 210 to pass through the insertion groove 20, so as to suture and fix the tube body 10 to the patient's skin. The positioning component 200 has a simple overall structure, low cost, and is easy to operate, conveniently and quickly fixing the tube body 10.
[0036] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.
Claims
1. A multifunctional drainage tube, characterized in that, The multifunctional drainage tube includes a tube body and a through groove provided on the tube body. The through groove is arranged radially or axially along the tube body and is located between the inner wall and the outer wall of the tube body. An inlet hole and an outlet hole are formed on the outer wall of the tube body. The number of through grooves is one or more, and the multiple through grooves are arranged at intervals along the axial direction of the tube body.
2. The multifunctional drainage tube according to claim 1, characterized in that, The tube body is a rubber tube, silicone tube, or polyurethane tube, and the shape of the tube body is circular, elliptical, square, or hexagonal.
3. The multifunctional drainage tube according to claim 1, characterized in that, The multiple through slots are arranged at equal intervals and are either aligned or staggered.
4. The multifunctional drainage tube according to claim 1, characterized in that, The insertion groove is located at the opposite top end of the pipe body or / and the left and right opposite ends of the pipe body.
5. The multifunctional drainage tube according to claim 1, characterized in that, The insertion groove is arc-shaped, straight, or bent.
6. The multifunctional drainage tube according to claim 1, characterized in that, The flow guiding channel in the pipe body is arranged along its axial direction, and an inlet and an outlet are formed at its two opposite ends. A flow outlet is also provided at the opposite end of the pipe body near the inlet. The flow outlet penetrates the inner and outer walls of the pipe body radially and is connected to the flow guiding channel.
7. The multifunctional drainage tube according to claim 1, characterized in that, The multifunctional drainage tube also has a disinfectant for disinfection, which is attached to the insertion groove and is disposed in a soluble manner.
8. The multifunctional drainage tube according to claim 7, characterized in that, The disinfectant includes a soluble layer and a disinfectant layer. The disinfectant layer is attached to the wall of the insertion tank as a coating. The soluble layer covers the disinfectant layer and is used to seal the disinfectant layer in the insertion tank. The disinfectant layer is dissolved and released during the drainage process.
9. A positioning component, characterized in that, The positioning component is used to suture and fix the multifunctional drainage tube as described in any one of claims 1 to 8 to the patient's skin. The positioning component includes a suture needle and a suture thread. The shape of the suture needle corresponds to the shape of the insertion groove. The opposite tail end of the suture needle has a positioning hole or positioning hook for fixing the suture thread. The suture thread passes through the insertion groove under the drive of the suture needle to suture and fix the tube body to the patient's skin.
10. The positioning component according to claim 9, characterized in that, The suture needle is a curved needle with relatively sharp tips at opposite ends, and the suture thread is absorbable or medical thread.