Anti-backflow medical suction tube
By designing anti-reflow medical suction tubes, using silicone and specific materials in reverse end and mesh structures, the problem of liquid reflow of the suction tube is solved, and anti-reflow protection is achieved in rolling situations, ensuring the smoothness and safety of the suction process.
Patent Information
- Application Number
- CN202422072633.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-26
AI Technical Summary
When the current medical suction tubes have a large amount of liquid, liquid reflux is prone to occur after the container at the tail of the suction tube is saturated, which lacks an effective anti-reflow structure, which affects the smoothness of the suction process.
A medical suction tube for anti-reflow is designed, using a silicone pipe body, a reverse stop end and mesh structure made of polyethylene, polypropylene and rigid polyurethane materials, which floats and blocks after the liquid storage container is saturated by a reverse stop ball to prevent backflow.
During normal discharge process, even if the liquid inlet port side is inclined, it can effectively prevent the liquid from flowing back, ensuring the continuity and safety of the suction process.
Smart Images
Figure CN223170134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical suction tubes, in particular to an anti-backflow medical suction tube. Background Art
[0002] Medical suction tubes are a commonly used medical device, mainly used to safely and effectively suck in vivo fluids or gases during medical procedures. Such suction tubes are usually made of high-quality medical plastics or silica gels to ensure non-toxic, harmless, and good biocompatibility.
[0003] The characteristics of this type of medical suction tube are as follows:
[0004] Materials: Usually made of high-quality medical plastics or silica gels to ensure non-toxic, harmless, and good biocompatibility;
[0005] Dimensions and lengths: According to different clinical needs, medical suction tubes are available in different dimensions and lengths to meet the suction requirements of different parts;
[0006] Ease of use: Simple design, easy to operate, and convenient for medical staff to use quickly in case of emergency;
[0007] Safety: In addition to the basic suction function, such suction tubes may also have other safety features, such as anti-clogging designs, to ensure smooth suction processes.
[0008] Medical suction tubes are one of the indispensable instruments in modern medicine and are widely used in various medical scenarios to help medical staff improve work efficiency and patient safety.
[0009] Currently, when using some liquid suction tubes, if the amount of liquid in the suction tube is relatively large and the container at the tail of the suction tube is saturated, it is very easy for the discharged liquid to flow back. Therefore, it is necessary to design an anti-backflow structure on the suction tube to provide reverse stop protection when the liquid flows back intensively without affecting normal liquid discharge. Summary of the Utility Model
[0010] The purpose of the utility model is to provide an anti-backflow medical suction tube to solve the above-mentioned drawbacks in the prior art.
[0011] To achieve the above purpose, the utility model adopts the following technical solutions:
[0012] Design an anti-backflow medical suction tube, including a pipe body. One end of the pipe body is provided with a liquid outlet interface in a penetrating manner, and the liquid outlet interface is fixedly bonded to the pipe body through resin glue;
[0013] The other end of the pipe body is provided with a liquid inlet interface in a penetrating manner, and the liquid inlet interface and the pipe body are adhesively fixed by resin glue. The other end of the liquid inlet interface is provided with an integrally formed drainage fine head, and the inner wall of the liquid outlet interface is provided with internal threads;
[0014] A connecting pipe is fixedly penetrated inside the liquid inlet interface, and one end of the connecting pipe is butt-connected and communicated with the drainage fine head. The other end of the connecting pipe is fixed with an integrally formed check head. The other end of the check head is covered with a net plate, and the net plate is adhesively fixed to the end face of the check head by resin glue. A check ball is arranged inside the check head.
[0015] Specifically, the pipe body is made of silica gel material.
[0016] Specifically, the liquid outlet interface, the liquid inlet interface and the drainage fine head are all made of polyethylene material.
[0017] Specifically, the connecting pipe and the check head are both made of polypropylene material.
[0018] Specifically, the check head is of a horn structure, and the wide-mouth position faces the pipe body.
[0019] Specifically, the net plate and the check ball are both made of rigid polyurethane material.
[0020] Specifically, the check ball is of a hollow ball structure, and its outer diameter is... times the inner diameter of the connecting pipe.
[0021] The beneficial effects of the design scheme proposed by the present utility model in the application process are as follows:
[0022] 1. Through the cooperation of the liquid inlet interface, the pipe body and the liquid outlet interface, a complete body fluid suction pipe structure can be formed. Internal threads are provided at the inner wall position of the liquid outlet interface, which can facilitate threaded docking with the liquid storage container. By adding a horn-shaped check head to the liquid inlet, while normal drainage is carried out, even if the liquid inlet interface is tilted, direct backflow will not easily occur.
[0023] 2. A check ball structure is added inside the check head, and a net plate structure is added at the end of the check head. While the net plate ensures normal liquid discharge, it can prevent the check ball from falling off. When the liquid storage container is saturated and liquid backflows, the check ball can float and block the opening position of the connecting pipe to protect against backflow. Brief Description of the Drawings
[0024] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0025] Figure 2 is a front view structure schematic diagram of the present utility model;
[0026] Figure 3 Partial enlarged schematic diagram of the liquid outlet interface of the present utility model;
[0027] Figure 4 Enlarged schematic diagram of point a of the present utility model.
[0028] In the figure: 10, pipe body; 11, liquid outlet interface; 12, liquid inlet interface; 13, drainage fine head; 14, internal thread; 15, connecting pipe; 16, check end; 17, mesh plate; 18, check ball. Specific embodiments
[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0030] Referring to Figures 1-4 , an anti-backflow medical suction tube includes a pipe body 10. One end of the pipe body 10 is provided with a liquid outlet interface 11 in a penetrating manner, and the liquid outlet interface 11 is fixedly bonded to the pipe body 10 by resin glue;
[0031] The other end of the pipe body 10 is provided with a liquid inlet interface 12 in a penetrating manner, and the liquid inlet interface 12 is fixedly bonded to the pipe body 10 by resin glue. The other end of the liquid inlet interface 12 is provided with an integrally formed drainage fine head 13, and an internal thread 14 is provided on the inner wall of the liquid outlet interface 11;
[0032] A connecting pipe 15 is fixedly penetrated inside the liquid inlet interface 12, and one end of the connecting pipe 15 is butt-connected and communicated with the drainage fine head 13. The other end of the connecting pipe 15 is fixed with an integrally formed check end 16. The other end of the check end 16 is covered with a mesh plate 17, and the mesh plate 17 is fixedly bonded to the end face of the check end 16 by resin glue. A check ball 18 is arranged inside the check end 16.
[0033] Furthermore, it should be noted that the pipe body 10 is made of silicone material. The silicone material has a long service life, is not easy to age or degrade, and can be used in the body for a long time. The silicone material maintains its physical and chemical properties within a wide temperature range, is suitable for various medical environments and disinfection methods. The medical silicone material has been specially treated and has certain antibacterial properties, which helps to prevent infection. The silicone material has passed strict safety tests and is confirmed to be non-toxic and non-carcinogenic, and is suitable for the manufacture of medical devices.
[0034] Further, it should be noted that the liquid outlet interface 11, the liquid inlet interface 12, and the drainage tip 13 are all made of polyethylene material. Medical polyethylene material has good biocompatibility, will not cause immune reactions or tissue rejection, and is suitable for various medical devices and implants. The polyethylene material has strong chemical stability, is not easy to react with other substances, can remain stable in the internal environment of the body, has good corrosion resistance, can resist the erosion of various chemical substances, is applicable to various medical environments, has high wear resistance and durability, and can maintain its performance during repeated use and disinfection.
[0035] Further, it should be noted that the connecting pipe 15 and the check valve end 16 are both made of polypropylene material, which has good corrosion resistance, can resist the erosion of various chemical substances, and is applicable to various medical environments. Medical polypropylene material has high rigidity and hardness, can provide stable support and protection. The polypropylene material has good heat resistance, can maintain its performance in high-temperature environments, and is suitable for high-temperature disinfection and sterilization. The polypropylene material has a low density and is light in weight, which can reduce the burden on patients, especially suitable for medical devices that need to be worn for a long time.
[0036] Further, it should be noted that the check valve end 16 is in a horn structure, and the wide-mouth position faces the pipe body 10. After the liquid flows out normally, the horn-shaped check valve end 16 and the inner wall of the liquid inlet interface 12 form a small check space. If the liquid outlet interface tilts, the liquid will only flow back to the space at the connection between the outer wall of the check valve end 16 and the liquid inlet interface 12, realizing preliminary reverse flow protection.
[0037] Further, it should be noted that the mesh plate 17 and the check valve ball 18 are both made of rigid polyurethane material. Medical rigid polyurethane material has passed strict safety tests, confirmed to be non-toxic and non-carcinogenic, and is suitable for the manufacture of medical devices. The rigid polyurethane material has a low density and is light in weight, which can reduce the burden on patients, especially suitable for medical devices that need to be worn for a long time. It has good chemical resistance, can resist the erosion of various chemical substances, is applicable to various medical environments, and is easy to process. It can be formed by various methods such as injection molding, extrusion, and thermoforming to meet the manufacturing requirements of various medical devices.
[0038] Further, it should be noted that the check valve ball 18 is in a hollow ball structure, and its outer diameter is 1.2 times the inner diameter of the connecting pipe 15. The hollow check valve ball 18 can have buoyancy. After the liquid storage container is saturated after drainage, if there is a backflow, the check valve ball 18 can be lifted and blocked at the open end of the connecting pipe 15 to realize anti-backflow protection.
[0039] Working mode: Through the cooperation of the liquid inlet interface 12, the pipe body 10 and the liquid outlet interface 11, a complete body fluid suction tube structure can be formed. An internal thread 14 is provided at the inner wall position of the liquid outlet interface 11, which can facilitate the threaded connection with the liquid storage container. By adding a flared check end 16 to the liquid inlet, even if the liquid inlet interface 12 is tilted, direct backflow will not easily occur while discharging liquid normally.
[0040] Add a check ball 18 structure inside the check end 16, and add a net plate 17 structure at the end of the check end 16. While ensuring normal liquid discharge, the net plate 17 can prevent the check ball 18 from falling off. When the liquid storage container is saturated and the liquid flows back, the check ball 18 can float and block the opening position of the connecting pipe 15 to prevent backflow.
[0041] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A reflux-preventing medical suction tube, comprising a pipe body (10), characterized in that: A liquid outlet interface (11) is provided through one end of the pipe body (10), and the liquid outlet interface (11) and the pipe body (10) are fixed by bonding with resin glue; The other end of the pipe body (10) is provided with a liquid inlet interface (12), and the liquid inlet interface (12) and the pipe body (10) are fixed by resin glue. The other end of the liquid inlet interface (12) is provided with an integrally formed drainage tap (13), and the inner wall of the liquid outlet interface (11) is provided with an internal thread (14); A connecting pipe (15) is fixedly passed through the interior of the liquid inlet interface (12), and one end of the connecting pipe (15) is connected to the drainage tip (13). An integrally formed check terminal (16) is fixed to the other end of the connecting pipe (15). The other end of the check terminal (16) is covered with a mesh plate (17), and the mesh plate (17) is bonded and fixed to the end face of the check terminal (16) by resin glue. A check ball (18) is provided inside the check terminal (16).
2. The anti-reflux medical suction tube according to claim 1, wherein: The pipe body (10) is made of silicone material.
3. The anti-reflux medical suction tube according to claim 1, characterized in that: The liquid outlet interface (11), the liquid inlet interface (12) and the drainage tip (13) are all made of polyethylene material.
4. The anti-reflux medical suction tube according to claim 1, characterized in that: The connecting pipe (15) and the check end (16) are both made of polypropylene material.
5. The anti-reflux medical suction tube according to claim 1, characterized in that: The check end (16) is a trumpet structure, with the wide mouth facing the pipe body (10).
6. The anti-reflux medical suction tube according to claim 1, characterized in that: The mesh plate (17) and the check ball (18) are both made of hard polyurethane material.
7. The anti-reflux medical suction tube according to claim 1, characterized in that: The check ball (18) is a hollow ball structure, and its outer diameter is 1.2 times the inner diameter of the connecting pipe (15).