Wound irrigation device for pediatric surgery
The deformable bottle and adjustable valve cap, combined with a bendable injection tube and flexible extraction tube, address the challenges of precise fluid control and mechanical irritation in pediatric wound cleaning, enhancing operational ease and reducing environmental impact.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
- Filing Date
- 2026-03-28
- Publication Date
- 2026-05-25
AI Technical Summary
Current wound cleaning devices for pediatric surgery are difficult to operate precisely, cause pain and fear due to mechanical irritation, and result in liquid splashing and environmental pollution.
A deformable bottle with a one-way valve, a collision prevention block, and a bendable liquid injection tube, combined with a flexible extraction tube and adjustable valve cap, to control fluid flow and direction without external power, reducing mechanical irritation and preventing leakage.
The device minimizes pain and fear in children, ensures precise fluid control, prevents leakage, and maintains operational convenience, with adjustable flow rates and flexible operation for various wound locations.
Smart Images

Figure 0003255978000001_ABST
Abstract
Description
Technical Field
[0004] , ,
[0006] , , , , , , ,
[0005] ,
[0001] The present invention relates to the technical field of medical devices, and particularly to a wound cleaning device for pediatric surgery.
Background Art
[0002] In the nursing work of pediatric surgery, wound cleaning is an important stage of postoperative treatment. The currently commonly used wound cleaning methods in clinical practice mainly involve directly pouring the cleaning liquid or using an ordinary syringe to clean the wound. Although these devices are easy to operate, children have low cooperation, and the instruments are likely to touch the wound during the cleaning process, which easily causes pain and a sense of fear. Moreover, the conventional cleaning devices are difficult to precisely control the direction and flow rate of the cleaning liquid, and the cleaning liquid is likely to splash everywhere, which not only wastes the chemical solution but may also pollute the working environment.
[0003] Therefore, it is urgent to propose a new wound cleaning device for pediatric surgery as an effective technical means to address the deficiencies of the current technology.
Summary of the Invention
Problems to be Solved by the Invention
[0004] An object of the present invention is to provide a wound cleaning device for pediatric surgery to solve the problems raised in the above background art.
Means for Solving the Problems
[0005] To achieve the above object, the present invention provides the following technical means.
[0006] The wound cleaning device for pediatric surgery has a bottle body, a lid is provided at the top of the bottle body, a liquid extraction tube and a liquid injection tube are respectively connected to the inner and outer sides of the lid, the liquid extraction tube communicates with the liquid injection tube, and a one-way valve for sending air in one direction into the bottle body is further provided on the lid. The bottle body is capable of being deformed when pressed and recovering its shape when the pressure is released, and a collision prevention block is provided at the end of the liquid injection tube, the collision prevention block having a soft texture and smooth edges, and a liquid outlet connected to the liquid injection tube is provided at the center of the collision prevention block.
[0007] Preferably, an opening is provided in the circumferential outer wall of the one-way valve, and a valve cap is screwed onto the one-way valve to control the intake area of the opening.
[0008] Preferably, the liquid injection tube is a pipe material that can be bent and deformed as desired.
[0009] Preferably, the liquid extraction tube is made of a flexible tubing material, and a weighted block is provided at one end of the liquid extraction tube that is separated from the lid.
[0010] Preferably, the liquid extraction tube has a multi-turned helical linear structure.
[0011] Preferably, the bottle body is made of a transparent material. [Effects of the Invention]
[0012] This invention has the following beneficial effects compared to existing technology. 1. In this invention, by installing a collision prevention block having a soft texture and smooth edges, the mechanical irritation that the instrument inflicts on the wound during the cleaning process is significantly reduced, thereby alleviating pain and fear for child patients; by adopting a structure in which a deformable bottle body corresponds to a one-way valve, cleaning fluid can be easily sprayed and operated without the need for an external power source; and by designing the liquid extraction tube and liquid spray tube to communicate, the liquid flow path is simplified, preventing liquid leakage during the cleaning process.
[0013] 2. In this invention, the adjustable valve cap design allows the device to have a flow control function to meet the requirements of various cleaning situations; the bendable liquid injection tube improves operational flexibility and facilitates the treatment of wounds in various parts of the body; the design of the weighted block and spiral liquid extraction tube ensures stable liquid extraction and improves operational convenience, eliminating the need to worry about correcting the position of the bottle during use; and the transparent bottle makes it easy to observe the liquid level, improving ease of use. [Brief explanation of the drawing]
[0014] [Figure 1] Figure 1 is a schematic diagram of the structure of a wound cleaning device for pediatric surgery. [Figure 2] Figure 2 is an exploded view of the structure of a wound cleaning device for pediatric surgery. [Figure 3] Figure 3 is a structural diagram of the lid and the components connected to it. [Figure 4] Figure 4 is a partially enlarged view of the cover and the one-way valve. [Modes for carrying out the invention]
[0015] We will now clearly and completely describe the technical means in the embodiments of the present invention with reference to the drawings of the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all embodiments. All other embodiments that a person skilled in the art could obtain without expending creative labor based on the embodiments of the present invention are included within the scope of protection of the present invention. [Examples]
[0016] Example 1 As shown in Figure 1-4, the technical means of the present invention is a pediatric surgical wound cleaning device having a bottle body 1, a lid body 2 provided on the top of the bottle body 1, a liquid extraction tube 3 and a liquid injection tube 5 connected to the inside and outside of the lid body 2, the liquid extraction tube 3 and the liquid injection tube 5 communicating with each other, and a one-way valve 8 that sends air into the inside of the bottle body 1 in one direction is further provided on the lid body 2. The bottle body 1 can be deformed when pressed and can recover its shape when the pressure is released, an anti-collision block 6 is provided at the end of the liquid injection tube 5, the anti-collision block 6 has a soft texture and smooth edges, and a liquid outlet 7 connected to the liquid injection tube 5 is provided at the center of the anti-collision block 6.
[0017] In this embodiment, the bottle body 1 is made of a crushable elastic material such as medical-grade polyethylene or polypropylene, making it easy to apply pressure by hand. To ensure a tight seal between the lid body 2 and the bottle body 1, one side can be screwed onto the other during actual manufacturing. The liquid extraction tube 3 extends to the bottom of the bottle body 1 to extract the cleaning solution, and the liquid spray tube 5 is used to guide the cleaning solution to the wound site. The one-way valve 8 ensures that outside air can only enter the bottle body 1, preventing the liquid inside from flowing out.
[0018] The anti-collision block 6 is made of a soft material such as silicone or medical rubber, and its smooth edge design reduces discomfort from contact when it comes into contact with the wound, making it especially suitable for child patients. The liquid outlet 7 located in the center of the anti-collision block 6 ensures that the cleaning solution is accurately sprayed onto the target area.
[0019] The operating principle of this invention is as follows: When in use, the operator holds the bottle 1 in their hand and aligns the collision prevention block 6 at the end of the liquid spray tube 5 with the wound. When the bottle 1 is compressed, the internal pressure increases, and the cleaning solution enters the liquid spray tube 5 through the liquid extraction tube 3 and is ejected from the liquid outlet 7. When the bottle 1 is released, it returns to its original shape under its own elastic action, creating negative pressure inside. External air enters the bottle 1 through the one-way valve 8, and the internal and external pressures reach equilibrium, thereby preparing for subsequent compression and spraying. By continuously compressing and releasing the bottle 1, it is possible to continuously spray the cleaning solution.
[0020] In this invention, by installing the anti-collision block 6 with a soft texture and smooth edges, the mechanical stimulation caused by the instrument to the wound during the cleaning process is significantly reduced, thus alleviating the pain and fear of child patients; by adopting a structure in which the deformable bottle body corresponds to the one-way valve, simple injection of the cleaning liquid and easy operation can be achieved without the need for an external power source; through the communication design of the liquid extraction tube and the liquid injection tube, the liquid flow path is simplified, and liquid leakage during the cleaning process is prevented.
Embodiment
[0021] Embodiment 2 In this embodiment, the device is further optimized based on Embodiment 1. An opening 9 is provided on the circumferential outer wall of the one-way valve 8, and a valve cap 10 for controlling the intake area of the opening 9 is screwed onto the one-way valve 8. By turning the valve cap 10, the opening degree of the opening 9 can be adjusted, thereby controlling the flow rate of external air entering the bottle body 1. When the intake area becomes smaller, the bottle body 1 will return to its original shape more slowly after being compressed, and the liquid ejection interval will extend. Conversely, when the intake area becomes larger, the liquid ejection frequency will increase. With this design, the operator can flexibly adjust the ejection frequency and flow rate according to the size of the wound and the cleaning requirements.
[0022] The liquid injection tube 5 is a tubing that can be arbitrarily bent and deformed, specifically a metal hose or a plastic pipe with plasticity. The operator can bend the liquid injection tube 5 into an appropriate shape according to the position of the wound and the operation angle, which makes it easier to clean the wound from different directions, improving the applicability of the device and the convenience of operation.
[0023] The liquid extraction tube 3 is a flexible tubing, and a counterweight 4 is provided at one end of the liquid extraction tube 3 away from the lid body 2. The counterweight 4 is made of medical stainless steel or ceramic material and has an appropriate weight. When the bottle body 1 tilts or shakes, the counterweight 4 depends on gravity to always keep the end of the liquid extraction tube 3 at the lowest position of the liquid surface, ensuring that the liquid in the bottle body can be fully drawn out even when the amount of liquid in the bottle body decreases, reducing liquid residue.
[0024] The liquid extraction tube 3 has a multi-coil spiral linear structure. This structure gives the liquid extraction tube 3 a certain degree of flexibility, allowing it to adapt to changes in length when the bottle body 1 is compressed and deformed, preventing the liquid extraction tube 3 from being excessively stretched and falling out of the liquid surface, or from being bent and becoming clogged.
[0025] Bottle 1 is made of a transparent material such as transparent polypropylene or PET. The operator can observe the remaining amount of washing solution inside the bottle in real time through the bottle wall, facilitating timely replenishment and preventing the operation from being interrupted by running out of liquid.
[0026] The operating principle of this invention is as follows: Based on Example 1, the operator adjusts the valve cap 10 to control the intake volume, thereby adjusting the ejection frequency. The ejection direction is adjusted by bending the liquid injection tube 5. The weight distribution block 4 ensures that the end of the liquid extraction tube 3 is always below the liquid surface. The spiral structure of the liquid extraction tube 3 maintains good suction function even when the bottle body 1 is deformed.
[0027] In this invention, the adjustable valve cap design allows the device to have a flow control function to meet the requirements of various cleaning situations; the bendable liquid injection tube improves operational flexibility and facilitates the treatment of wounds in various parts of the body; the design of the weighted block and spiral liquid extraction tube ensures stable liquid extraction and improves operational convenience, eliminating the need to worry about adjusting the position of the bottle during use; and the transparent bottle makes it easy to observe the liquid level, improving ease of use. [Explanation of symbols]
[0028] 1-Bottle body; 2-Lid; 3-Liquid extraction tube; 4-Weight block; 5-Liquid injection tube; 6-Anti-collision block; 7-Liquid outlet; 8-One-way valve; 9-Opening; 10-Valve cap
Claims
1. The device has a bottle body (1), a lid (2) on the top of the bottle body (1), a liquid extraction tube (3) and a liquid injection tube (5) connected to the inside and outside of the lid (2), the liquid extraction tube (3) and the liquid injection tube (5) communicating with each other, and a one-way valve (8) that sends air into the inside of the bottle body (1) in one direction is further provided on the lid (2). The bottle body (1) is capable of being deformed when pressed and returning to its original shape when the pressure is released, and a collision prevention block (6) is provided at the end of the liquid injection tube (5), the collision prevention block (6) having a soft texture and smooth edges, and a liquid outlet (7) connected to the liquid injection tube (5) is provided at the center of the collision prevention block (6). A wound cleaning device for pediatric surgery, characterized by the following features.
2. An opening (9) is provided in the circumferential outer wall of the one-way valve (8), and a valve cap (10) for controlling the intake area of the opening (9) is screwed onto the one-way valve (8). The pediatric surgical wound cleaning device according to feature 1.
3. The pediatric surgical wound cleaning device according to claim 1, characterized in that the liquid injection tube (5) is a tubular material that can be bent and deformed at will.
4. The liquid extraction tube (3) is made of a flexible tubing material, and a weighted block (4) is provided at one end of the liquid extraction tube (3) that is separated from the lid (2). The pediatric surgical wound cleaning device according to feature 1.
5. The pediatric surgical wound cleaning device according to claim 4, characterized in that the liquid extraction tube (3) has a multi-winding helical linear structure.
6. The pediatric surgical wound cleaning device according to claim 1, characterized in that the bottle (1) is made of a transparent material.