Drain connector and abdominal drainage device
By designing a threaded connection between the drainage tube connector and the spiral cap, as well as a limiting retaining ring, the problem of drainage tube detachment was solved, a stable connection of the drainage tube was achieved, and the risk of infection was reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN HOSPITAL FUDAN UNIV
- Filing Date
- 2024-12-31
- Publication Date
- 2026-06-12
AI Technical Summary
In existing technologies, silicone tubing is soft and prone to collapse, causing the drainage tube to detach from the connector, increasing the risk of infection for patients.
Design a drainage tube connector, including an inlet end and a spiral cap. The conical section is inserted into the drainage tube, the cylindrical section supports the tube cavity, and it is connected to the spiral cap through a threaded fit. Combined with structures such as a limiting retaining ring and a serrated clamp, a tight fixation is achieved.
It effectively prevents the drainage tube from detaching due to lumen collapse, reduces bodily fluid contamination, and lowers the risk of infection for patients.
Smart Images
Figure CN224345221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a drainage tube connector and an abdominal drainage device. Background Technology
[0002] Clinically, a section of medical silicone tubing is exposed on the patient's abdomen to connect to the inlet port of an abdominal drainage bag for draining ascites. However, silicone tubing is soft and prone to collapse. During connection, the inlet port of the drainage tube often detaches from the silicone tubing, leading to bodily fluid contamination of the wound and bed unit, increasing the patient's risk of infection. Utility Model Content
[0003] Therefore, the purpose of this utility model is to provide a drainage tube connector and an abdominal drainage device to solve the technical problems mentioned in the background art.
[0004] This utility model provides a drainage tube connector for connecting a drainage tube and a drainage bag tube. The drainage tube connector includes an inlet end and a spiral cap. The inlet end is connected to the end of the drainage bag tube, and the spiral cap is fitted onto the drainage bag tube. The inlet end has a cylindrical section and a conical section arranged sequentially in the insertion direction. During connection, the inlet end is inserted into the drainage tube through the conical section, and the spiral cap fits against the outer surface of the drainage tube and is threadedly connected to the cylindrical section.
[0005] Furthermore, in the drainage tube connector, the spiral cap includes a base plate and a side plate disposed around the periphery of the base plate. The center point of the base plate is provided with an opening for the drainage tube to pass through. The inner wall of the side plate is provided with an internal thread, and the outer wall of the cylindrical section is provided with an external thread. The external thread and the internal thread cooperate to realize the threaded connection between the spiral cap and the cylindrical section.
[0006] Furthermore, in the drainage tube connector, the outer wall of the drainage bag tube is provided with a limiting ring, and the spiral cap is located between the liquid inlet end and the limiting ring.
[0007] Another aspect of this utility model proposes an abdominal drainage device, including a drainage bag, wherein the drainage bag is connected to the drainage tube connector described in the above-mentioned technical solution through a drainage bag tube.
[0008] Furthermore, in the abdominal drainage device, the drainage bag tube is provided with a serrated clamp, the serrated clamp includes an elastic main body section and reverse tooth structures at both ends of the elastic main body section, the reverse tooth structures at the head end and tail end of the elastic main body section are misaligned and connected so that the serrated clamp forms a closed ring structure.
[0009] Furthermore, in the abdominal drainage device, the serrated clamp is connected to a fixing clamp via a pull rope. The fixing clamp includes a first annular clamp plate and a second annular clamp plate. The inner edge of the first annular clamp plate is provided with a retaining ring, which is used to engage with the through hole of the second annular clamp plate, thereby realizing the fastening of the first annular clamp plate and the second annular clamp plate.
[0010] Furthermore, in the abdominal drainage device, the second annular clamp has a protrusion on the side facing the first annular clamp, and the first annular clamp has a groove that mates with the protrusion.
[0011] Furthermore, in the abdominal drainage device, the outer edges of the first annular clamp and the second annular clamp are provided with paddles.
[0012] Furthermore, in the abdominal drainage device, the drainage bag tube is equipped with a switch clamp, and the bottom of the telescopic drainage bag is equipped with a control valve.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] During connection, the inlet end is inserted into the drainage tube through the conical section, and the cylindrical section supports the lumen of the drainage tube. Then, the screw cap is tightened to secure the drainage tube between the screw cap and the cylindrical section, effectively preventing the drainage tube from detaching from the inlet end due to lumen collapse. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the drainage tube connector in the first embodiment of the present invention;
[0016] Figure 2 This is a schematic diagram of the spiral cap in the first embodiment of the present invention;
[0017] Figure 3 This is a schematic diagram of the abdominal drainage device in the second embodiment of the present invention;
[0018] Figure 4 This is a schematic diagram of the sawtooth clamp in the second embodiment of the present invention;
[0019] Figure 5 This is a schematic diagram of the fixing clip in the second embodiment of the present invention;
[0020] Explanation of key component symbols:
[0021] 10. Liquid inlet end; 11. Cylindrical section; 12. Conical section; 13. External thread; 20. Spiral cap; 21. Base plate; 22. Side plate; 23. Opening; 24. Internal thread; 30. Drainage bag tube; 40. Limiting ring; 50. Drainage bag; 60. Serrated clamp; 61. Elastic main body section; 62. Reverse tooth structure; 71. Pull rope; 72. Fixing clamp; 721. First annular clamp; 722. Second annular clamp; 723. Snap ring; 724. Protrusion; 725. Groove; 726. Paddle; 81. Switch clamp; 82. Control valve.
[0022] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation
[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.
[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0026] First Embodiment
[0027] Please see Figure 1 and Figure 2The drainage tube connector in the first embodiment of this utility model is used for docking between the drainage tube and the drainage bag tube 30. The drainage tube connector includes an inlet end 10 and a spiral cap 20. The inlet end 10 is connected to the end of the drainage bag tube 30, and the spiral cap 20 is sleeved on the drainage bag tube 30. The inlet end 10 has a cylindrical section 11 and a conical section 12 arranged sequentially in the insertion direction. The inlet end 10 is inserted into the drainage tube through the conical section 12, and the cylindrical section 11 supports the cavity of the drainage tube. The spiral cap 20 presses against the outer surface of the drainage tube and is threadedly connected to the cylindrical section 11.
[0028] During docking, the inlet end 10 is inserted into the drainage tube through the conical section 12, and the tube cavity of the drainage tube is supported by the cylindrical section 11. Then, the screw cap 20 is tightened to fix the drainage tube tightly between the screw cap 20 and the cylindrical section 11, which effectively prevents the drainage tube from falling off the inlet end 10 due to the collapse of the tube cavity.
[0029] For details, please refer to Figure 2 The spiral cap 20 includes a base plate 21 and a side plate 22 disposed around the periphery of the base plate 21. The center point of the base plate 21 is provided with an opening 23 for the drainage bag tube 30 to pass through. The inner wall of the side plate 22 is provided with an internal thread 24, and the outer wall of the cylindrical section 11 is provided with an external thread 13. The external thread 13 and the internal thread 24 cooperate to realize the threaded connection between the spiral cap and the cylindrical section 11.
[0030] It should be noted that in this embodiment, the drainage tube is a soft silicone tube, with one end inserted into the patient's abdominal cavity and the other end exposed for docking with the drainage bag tube 30. The thickness of the drainage tube should be appropriate to ensure that when the inlet end 10 is inserted into the lumen of the drainage tube, the outer surface of the drainage tube can be supported by the cylindrical section 11 and form a thread pattern with the same outline as the outer surface of the cylindrical section 11. This ensures that the screw cap 20 can press against the outer surface of the drainage tube and connect with the threaded connection of the cylindrical section 11, achieving a tight connection and seal between the drainage tube and the inlet end 10.
[0031] For further details, please refer to [link / reference]. Figure 1 The outer wall of the drainage bag tube 30 is provided with a limiting ring 40, and the spiral cap 20 is located between the inlet end 10 and the limiting ring 40. The limiting ring 40 is used to limit the movement distance of the spiral cap 20 on the drainage bag tube 30, ensuring that the limiting ring 40 is always in a position close to the inlet end 10, which facilitates medical staff to quickly connect the drainage tube and the drainage bag tube 30.
[0032] In summary, in the above embodiments of this utility model, when the drainage tube connector is connected, the inlet end 10 is inserted into the drainage tube through the conical section 12, and the cylindrical section 11 supports the cavity of the drainage tube. Then, the screw cap 20 is tightened, so that the drainage tube is tightly fixed between the screw cap 20 and the cylindrical section 11, effectively preventing the drainage tube from falling off the inlet end 10 due to the collapse of the cavity.
[0033] Second Embodiment
[0034] See Figures 3 to 5 The abdominal drainage device in the second embodiment of this utility model includes a drainage bag 50, which is connected to the drainage tube connector described in the above technical solution through a drainage bag tube 30.
[0035] Specifically, in this embodiment, the drainage bag 50 is made of soft, durable, and non-toxic material, namely medical-grade polyethylene, which has good chemical resistance and can resist the erosion and leakage of drainage fluid. Secondly, the drainage bag 50 is transparent so that medical staff can observe the condition and level of the drainage fluid through the outside of the bag, which is convenient for monitoring the drainage effect and performing necessary treatments. The outside of the drainage bag 50 often has scale markings, which can indicate the volume of drainage fluid, making it convenient for the quantification and recording of drainage fluid.
[0036] See Figure 3 and Figure 4 The drainage tube 30 is equipped with a serrated clamp 60, which includes an elastic main body section 61 and reverse tooth structures 62 at both ends of the elastic main body section 61. The reverse tooth structures 62 at the beginning and end of the elastic main body section 61 are staggered and connected to form a closed annular structure. In practical applications, users can adjust the mating position of the reverse tooth structures 62 at the beginning and end of the serrated clamp 60 to enlarge or reduce the size of the serrated clamp 60, thereby achieving flow restriction control of the drainage tube 30.
[0037] See Figure 3 and Figure 5 The serrated clamp 60 is connected to a fixing clamp 72 via a pull rope 71. The fixing clamp 72 includes a first annular clamping plate 721 and a second annular clamping plate 722. A retaining ring 723 is provided on the inner edge of the first annular clamping plate 721. The retaining ring 723 is used to engage with a through hole in the second annular clamping plate 722, thereby achieving the engagement of the first annular clamping plate 721 and the second annular clamping plate 722. Specifically, in this embodiment, the first annular clamping plate 721 is fixedly connected to the pull rope 71, and the second annular clamping plate 722 can be engaged or disengaged relative to the first annular clamping plate 721. The pull rope 71 is specifically a silicone connecting tube.
[0038] In practical applications, after the drainage cannula is connected to the drainage bag tube 30 of the drainage bag 50, clothing or bed sheets are placed between the first annular clamp 721 and the second annular clamp 722 and then fastened, which can properly pull and fix the drainage bag tube 30 and the drainage bag 50.
[0039] Furthermore, the second annular clamping plate 722 has a protrusion 724 on the side facing the first annular clamping plate 721, and the first annular clamping plate 721 has a groove 725 that mates with the protrusion 724. It can be understood that when the first annular clamping plate 721 and the second annular clamping plate 722 are engaged, the protrusion 724 is inserted into the groove 725, which can further improve the stability of the engagement between the first annular clamping plate 721 and the second annular clamping plate 722.
[0040] Furthermore, the outer edges of the first annular clamp 721 and the second annular clamp 722 are provided with a pry bar 726, which is used to facilitate medical staff to separate the first annular clamp 721 from the second annular clamp 722.
[0041] See Figure 3 The drainage bag tube 30 is equipped with a switch clamp 81, and the bottom of the telescopic drainage bag 50 is equipped with a control valve 82. The switch clamp 81 is used to control the inflow of liquid into the drainage bag 50, and the control valve 82 is used to control the outflow of liquid from the drainage bag 50. Specifically, the control valve 82 is a cross valve.
[0042] How to use:
[0043] First, insert the inlet end 10 into the drainage tube exposed outside the patient's body. Twist the screw cap 20 to secure the drainage tube tightly between the screw cap 20 and the cylindrical section 11. Once liquid flows into the drainage bag tube 30, press the serrated clamp 60 in opposite directions with your thumb and forefinger. The serrations on both sides will move in opposite directions to fit the width of the drainage tube. Then, release the pressure. Next, fix the fixing clamp 72 to the bed sheet or clothing. After properly securing the drainage bag tube 30 and the drainage bag 50, close the control valve 82 and open the switch clamp 81. The liquid will drain and be stored in the drainage bag 50.
[0044] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A drainage tube connector for connecting a drainage cannula and a drainage bag tube, characterized in that, The drainage tube connector includes an inlet end and a spiral cap. The inlet end is connected to the end of the drainage bag tube, and the spiral cap is fitted onto the drainage bag tube. The inlet end has a cylindrical section and a conical section arranged sequentially in the insertion direction. The inlet end is inserted into the drainage tube through the conical section, and the cylindrical section supports the lumen of the drainage tube. The spiral cap presses against the outer surface of the drainage tube and is threadedly connected to the cylindrical section.
2. The drainage tube connector according to claim 1, characterized in that, The spiral cap includes a base plate and a side plate located around the periphery of the base plate. The center point of the base plate has an opening for the drainage tube to pass through. The inner wall of the side plate has an internal thread, and the outer wall of the cylindrical section has an external thread. The external thread mates with the internal thread to achieve a threaded connection between the spiral cap and the cylindrical section.
3. The drainage tube connector according to claim 1, characterized in that, The outer wall of the drainage bag is provided with a limiting ring, and the spiral cap is located between the liquid inlet end and the limiting ring.
4. An abdominal drainage device, comprising a drainage bag, characterized in that, The drainage bag is connected to the drainage tube connector according to any one of claims 1 to 3 via the drainage bag tube.
5. The abdominal drainage device according to claim 4, characterized in that, The drainage bag tube is equipped with a serrated clamp, which includes an elastic main body section and reverse tooth structures at both ends of the elastic main body section. The reverse tooth structures at the beginning and end of the elastic main body section are staggered and connected to form a closed ring structure.
6. The abdominal drainage device according to claim 5, characterized in that, The serrated clamp is connected to a fixing clamp via a pull rope. The fixing clamp includes a first annular clamp plate and a second annular clamp plate. The inner edge of the first annular clamp plate is provided with a retaining ring, which is used to cooperate with the through hole of the second annular clamp plate, thereby realizing the fastening of the first annular clamp plate and the second annular clamp plate.
7. The abdominal drainage device according to claim 6, characterized in that, The second annular clamping plate has a protrusion on the side facing the first annular clamping plate, and the first annular clamping plate has a groove that mates with the protrusion.
8. The abdominal drainage device according to claim 6, characterized in that, The outer edges of the first and second annular clamps are provided with paddles.
9. The abdominal drainage device according to claim 4, characterized in that, The drainage bag tube is equipped with a switch clamp, and the bottom of the telescopic drainage bag is equipped with a control valve.