Portable negative pressure drainage set
By using a tape and strap connection structure, combined with buckles and through holes to adjust the strap length, a sleeve and limiting ring to fix the connecting tube, a liquid bottle to collect exudate, and an elastic frame and claws to fix the negative pressure device, the stability and sealing problems of the negative pressure drainage kit during movement are solved, thus achieving the stability and safety of the portable negative pressure drainage kit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-03
AI Technical Summary
The suction cup connection method in existing negative pressure drainage kits has low stability, which makes it easy for air to leak and the equipment to fall off during user movement, affecting the effectiveness and safety of use.
The system employs a tape and strap connection structure, with buckles and through holes to adjust the strap length. Sleeves and limit rings are used to fix the connecting pipes and hoses. A liquid bottle is set up to collect the exudate, and a spring frame and claws are used to fix the negative pressure equipment to ensure the equipment is stable.
It improves the portability and stability of negative pressure equipment, prevents tape detachment, ensures sealing effect, meets the wearing needs of different parts, prevents equipment from falling, facilitates hose storage and exudate collection, and improves the safety and convenience of use.
Smart Images

Figure CN224070887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a portable negative pressure drainage kit. Background Technology
[0002] Negative pressure drainage kits are advanced medical devices widely used in the treatment of various wounds and lesions. They are treatment systems that effectively promote wound healing through negative pressure suction technology. Depending on the manufacturer and product design, negative pressure drainage kits may contain various components, such as drainage tubes, medical films, medical sponges, absorbent dressings, connecting tubes, and negative pressure sources.
[0003] For example, the patent application number published on the China Patent Network is 201620379656.3, and the patent name is: A suction cup type negative pressure drainage kit. The kit connects the drainage channel and the suction cup via a connecting structure. The suction cup includes a base and a connector. The bottom surface of the base has a suction hole. The connecting structure includes a vertically connected connecting tube one and a connecting tube two. The side wall of the connecting tube two has multiple connecting ends, which are respectively connected to each drainage channel. The connecting structure has an internal space communicating with the suction hole and the drainage channel. The connecting tube two, the connecting ends, and the drainage channel are located inside a porous dressing. A portion of the connecting tube is embedded in the porous dressing, and the portion of the connecting tube one exposed in the porous dressing is inserted into the suction hole and fixedly connected to the base. Using this method to set the drainage channel avoids the side of the porous dressing, making it convenient for applying the dressing. Moreover, under negative pressure, the drainage channel will not be blocked during the compression and deformation of the dressing, solving the problems of inconvenient dressing application and easy blockage of the side holes of the drainage tube in negative pressure drainage kits.
[0004] However, existing drainage kits mainly use suction cups for connection. When the user moves, the suction cups are prone to air leakage due to limb movement, which affects the negative pressure adsorption effect of the suction cups, interferes with the user's normal carrying and movement, and the loose negative pressure device is prone to falling and causing secondary injury to the user. Utility Model Content
[0005] The purpose of this invention is to solve the problem of low stability in the existing suction cup connection method, and to propose a portable negative pressure drainage kit.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A portable negative pressure drainage kit includes an adhesive tape, a dressing at the bottom of the tape, and a negative pressure device at the top of the tape. A flexible tube is connected to the input end of the negative pressure device. A connecting tube is inserted into the end of the flexible tube away from the negative pressure device. The end of the connecting tube away from the flexible tube passes through the adhesive tape and extends into the dressing. A connecting structure is provided on the surface of the negative pressure device. The connecting structure includes a strap at the bottom of the negative pressure device, which is fitted over the surface of the connecting tube. Both ends of the strap extend to the bottom of the tape and form a closed loop using an adjustment structure.
[0008] As a preferred technical solution of this application, the adjustment structure includes a buckle fixedly connected to one end of the bottom of the strap, the other end of the strap passes through the buckle and is slidably connected to the buckle, and the surface of the strap has a through hole that cooperates with the buckle.
[0009] As a preferred technical solution of this application, pads are fixedly connected to the left and right sides of the top of the strap, and the side of the pad away from the strap is in contact with the bottom of the negative pressure device.
[0010] As a preferred technical solution of this application, the bottom of the negative pressure device is fixedly connected to a sleeve, the sleeve is sleeved on the surface of the connecting pipe, and the flexible hose is spirally wound on the surface of the sleeve.
[0011] As a preferred technical solution of this application, a limiting ring is fixedly connected to the surface of the sleeve, and the hose is located between the limiting ring and the negative pressure device.
[0012] As a preferred technical solution of this application, a liquid bottle is provided on the top of the negative pressure device, and the output end of the negative pressure device is connected to the input end of the liquid bottle.
[0013] As a preferred technical solution of this application, the top of the negative pressure device is fixedly connected to an elastic frame, which is located on the surface of the liquid bottle.
[0014] As a preferred technical solution of this application, a spring hinge is fixedly connected to the surface of the pad, a pressure plate is fixedly connected to the side of the spring hinge away from the pad, a claw is fixedly connected to the side of the pressure plate near the spring hinge, and the side of the claw away from the pressure plate extends to the outside of the negative pressure device and is inserted into the negative pressure device.
[0015] As a preferred technical solution of this application, the surface of the pad is provided with a groove, and the pressure plate and the spring hinge are both located inside the groove.
[0016] As a preferred technical solution of this application, a spring plate is fixedly connected inside the groove, and the side of the spring plate away from the groove contacts the bottom of the pressure plate, and the spring plate is elastic.
[0017] Compared with the prior art, this utility model provides a portable negative pressure drainage kit, which has the following beneficial effects:
[0018] 1. This portable negative pressure drainage kit uses an adjustable strap to connect the negative pressure device, which improves the portability of the device and ensures stability while carrying it. The adjustable strap also secures the tape, preventing it from coming into contact with the body and ensuring a good seal.
[0019] 2. This portable negative pressure drainage kit, with its buckles and through holes, allows for effective adjustment of the strap length to meet the wearing needs of different parts of the body.
[0020] 3. This portable negative pressure drainage kit, with the addition of pads, can support the negative pressure equipment and facilitate the connection of hoses and connecting pipes.
[0021] 4. This portable negative pressure drainage kit, with its sleeve, facilitates the connection between the negative pressure device and the connecting pipe, and also makes it easy to wind the hose.
[0022] 5. This portable negative pressure drainage kit can limit the hose by setting a limiting ring, so as to avoid affecting the storage of the hose.
[0023] 6. This portable negative pressure drainage kit, with its liquid bottle, can collect exudate, reducing environmental pollution and facilitating laboratory testing by doctors.
[0024] 7. This portable negative pressure drainage kit, with its elastic frame, allows users to quickly assemble and disassemble the liquid bottle, improving the efficiency of liquid bottle replacement.
[0025] 8. This portable negative pressure drainage kit, with its spring hinges, pressure plates, and claws, can effectively connect the straps and negative pressure equipment, preventing the negative pressure equipment from falling off.
[0026] 9. This portable negative pressure drainage kit, by setting grooves, can reduce the space occupied by the pressure plate and spring hinge, and ensure structural integrity.
[0027] 10. This portable negative pressure drainage kit, by setting up a spring plate, can support the pressure plate, so that the pressure plate has the effect of elastic reset. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of this utility model;
[0029] Figure 2 This is a bottom view of the structure of this utility model;
[0030] Figure 3This is a schematic diagram of the negative pressure device of this utility model;
[0031] Figure 4 This is a schematic diagram of the connection structure of this utility model;
[0032] Figure 5 This is a schematic diagram of the pad structure of this utility model;
[0033] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle;
[0034] Figure 7 This is a bottom view of a partial structure of the present invention.
[0035] In the diagram: 1. Adhesive tape; 2. Dressing; 3. Negative pressure device; 4. Hoose; 5. Connecting pipe; 6. Connecting structure; 7. Strap; 8. Buckle; 9. Through hole; 10. Pad; 11. Sleeve; 12. Limiting ring; 13. Liquid bottle; 14. Elastic frame; 15. Spring hinge; 16. Pressure plate; 17. Claw; 18. Groove; 19. Spring plate. Detailed Implementation
[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0037] Example 1:
[0038] Reference Figure 1-7A portable negative pressure drainage kit includes an adhesive tape 1, a dressing 2 at the bottom of the adhesive tape 1, and a negative pressure device 3 at the top of the adhesive tape 1. A flexible tube 4 is connected to the input end of the negative pressure device 3. A connecting tube 5 is inserted into the end of the flexible tube 4 away from the negative pressure device 3. The end of the connecting tube 5 away from the flexible tube 4 passes through the adhesive tape 1 and extends into the interior of the dressing 2. A connecting structure 6 is provided on the surface of the negative pressure device 3. The connecting structure 6 includes a strap 7 located at the bottom of the negative pressure device 3. The strap 7 is fitted onto the surface of the connecting tube 5. Both ends of the strap 7 extend to the bottom of the adhesive tape 1 and form a closed loop using an adjustment structure. This allows for... The adjustable, closed strap 7 connects to the negative pressure device 3, improving its portability and ensuring stability. The strap 7 also secures the tape 1, preventing it from detaching from the body and ensuring a tight seal. The adjustment mechanism includes a buckle 8 fixedly connected to one end of the strap 7, with the other end of the strap 7 passing through and slidingly connected to the buckle 8. The surface of the strap 7 has through holes 9 that cooperate with the buckle 8. By using the buckle 8 and through holes 9, the length of the strap 7 can be effectively adjusted to meet the wearing needs of different body parts. A pad 10 is fixedly connected to the left and right sides of the top of the strap 7. The side of the pad 10 away from the strap 7 contacts the bottom of the negative pressure device 3. A sleeve 11 is fixedly connected to the bottom of the negative pressure device 3. The sleeve 11 is fitted onto the surface of the connecting pipe 5. A flexible hose 4 is spirally wound around the surface of the sleeve 11. A limiting ring 12 is fixedly connected to the surface of the sleeve 11. The flexible hose 4 is located between the limiting ring 12 and the negative pressure device 3. A liquid bottle 13 is provided on the top of the negative pressure device 3. The output end of the negative pressure device 3 is connected to the input end of the liquid bottle 13. An elastic frame 14 is fixedly connected to the top of the negative pressure device 3. The elastic frame 14 is located on the sleeve 5. On the surface of the liquid bottle 13, a spring hinge 15 is fixedly connected to the surface of the pad 10. A pressure plate 16 is fixedly connected to the side of the spring hinge 15 away from the pad 10. A claw 17 is fixedly connected to the side of the pressure plate 16 near the spring hinge 15. The side of the claw 17 away from the pressure plate 16 extends to the outside of the negative pressure device 3 and is inserted into the negative pressure device 3. A groove 18 is formed on the surface of the pad 10. The pressure plate 16 and the spring hinge 15 are both located inside the groove 18. A spring plate 19 is fixedly connected inside the groove 18. The side of the spring plate 19 away from the groove 18 contacts the bottom of the pressure plate 16. The spring plate 19 is elastic.
[0039] Specifically, when this portable negative pressure drainage kit is in operation / use: Adhesive tape 1 is attached to the wound. When fluid oozes from the wound, the negative pressure device 3 connects to the connecting tube 5 via the flexible tube 4, and uses negative pressure to extract the oozing fluid from the bottom of the adhesive tape 1 through the connecting tube 5 and the flexible tube 4 into the liquid bottle 13 for storage. When the negative pressure device 3 needs to be moved, the strap 7 can be first wrapped around the torso at the wound site, and the diameter of the closed loop of the strap 7 can be adjusted using the buckle 8 and the through hole 9. When the strap 7 is completely wrapped around the torso surface and in contact with the adhesive tape 1, it achieves the effect of pressing and fixing the adhesive tape 1. Then, the user wraps the hose 4 around the surface of the sleeve 11 and presses the pressure plate 16 with one hand. When the pressure plate 16 drives the two claws 17 to swing outward around the spring hinge 15, the negative pressure device 3 is moved to the top of the tape 1 and needs to be located inside the two claws 17. When the bottom of the negative pressure device 3 contacts the surface of the pad 10 and the sleeve 11 is fitted onto the surface of the connecting pipe 5, the pressure plate 16 is released, the spring plate 19 releases its elasticity and pushes the pressure plate 16 to reset. The pressure plate 16 drives the claws 17 to freeze synchronously. When the claws 17 are inserted into the inside of the negative pressure device 3, the negative pressure device 3 is worn, preventing the negative pressure device 3 from loosening and falling off.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A portable negative pressure wound therapy kit comprising an adhesive tape (1), characterized in that, The bottom of the adhesive tape (1) is provided with a dressing (2), the top of the adhesive tape (1) is provided with a negative pressure device (3), the input end of the negative pressure device (3) is communicated with a hose (4), one end of the hose (4) away from the negative pressure device (3) is connected with a connecting pipe (5), the other end of the connecting pipe (5) away from the hose (4) penetrates through the adhesive tape (1) and extends to the inside of the dressing (2), the surface of the negative pressure device (3) is provided with a connecting structure (6), the connecting structure (6) comprises a belt (7) arranged at the bottom of the negative pressure device (3), the belt (7) is sleeved on the surface of the connecting pipe (5), and both ends of the belt (7) extend to the bottom of the adhesive tape (1) and form a closed loop by using an adjusting structure.
2. The portable negative pressure wound therapy kit of claim 1, wherein, The adjusting structure comprises a buckle (8) fixedly connected to one end of the bottom of the belt (7), the other end of the belt (7) penetrates through the buckle (8) and is in sliding connection with the buckle (8), and the surface of the belt (7) is provided with a through hole (9) matched with the buckle (8).
3. The portable negative pressure wound therapy kit of claim 2, wherein, The left side and the right side of the top of the belt (7) are fixedly connected with a pad (10), and the side of the pad (10) away from the belt (7) is in contact with the bottom of the negative pressure device (3).
4. The portable negative pressure wound therapy kit of claim 1, wherein, The bottom of the negative pressure device (3) is fixedly connected with a sleeve (11), the sleeve (11) is sleeved on the surface of the connecting pipe (5), and the hose (4) is spirally wound on the surface of the sleeve (11).
5. The portable negative pressure wound therapy kit of claim 4, wherein, The surface of the sleeve (11) is fixedly connected with a limiting ring (12), and the hose (4) is located between the limiting ring (12) and the negative pressure device (3).
6. The portable negative pressure wound therapy kit of claim 1, wherein, The top of the negative pressure device (3) is provided with a liquid bottle (13), and the output end of the negative pressure device (3) is in communication with the input end of the liquid bottle (13).
7. The portable negative pressure wound therapy kit of claim 6, wherein, The top of the negative pressure device (3) is fixedly connected with an elastic frame (14), and the elastic frame (14) is sleeved on the surface of the liquid bottle (13).
8. The portable negative pressure wound therapy kit of claim 3, wherein, The surface of the pad (10) is fixedly connected with a spring hinge (15), one side of the spring hinge (15) away from the pad (10) is fixedly connected with a pressing plate (16), one side of the pressing plate (16) close to the spring hinge (15) is fixedly connected with a clamping jaw (17), and one side of the clamping jaw (17) away from the pressing plate (16) extends to the outside of the negative pressure device (3) and is in insertion connection with the negative pressure device (3).
9. The portable negative pressure wound therapy kit of claim 8, wherein, The surface of the pad (10) is provided with a groove (18), and the pressing plate (16) and the spring hinge (15) are located in the inside of the groove (18).
10. The portable negative pressure wound therapy kit of claim 9, wherein, The inside of the groove (18) is fixedly connected with a elastic plate (19), one side of the elastic plate (19) away from the groove (18) is in contact with the bottom of the pressing plate (16), and the elastic plate (19) is elastic.
Citation Information
Patent Citations
Sucking disc formula negative pressure drainage suit
CN205796113U