Wound negative pressure drainage set
By incorporating a transparent frame and fluorescent floater into the wound negative pressure drainage kit, the problems of timely replacement of drainage bottles and skin tissue congestion in existing technologies are solved, enabling rapid observation and safe drainage, and ensuring the safety and sterility of the drainage process.
Patent Information
- Application Number
- CN202410520666.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-10-28
AI Technical Summary
Existing wound negative pressure drainage kits lack effective prompting functions, making it difficult for medical staff to replace full drainage bottles in a timely manner, and excessive suction may cause skin tissue to be sucked up and become congested.
A wound negative pressure drainage kit with a transparent frame, fluorescent float, and soft pad was designed. The fluorescent float indicates the amount of fluid accumulation and allows for timely replacement of the drainage bottle, while the soft pad cushions the suction and prevents skin tissue congestion.
This allows for rapid observation and timely replacement of the drainage bottle, preventing fluid overflow, avoiding skin tissue congestion, and ensuring the safety of the drainage process and the sterility of single-use.
Smart Images
Figure CN120837747A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and in particular to a wound negative pressure drainage kit. Background Technology
[0002] When treating fluid accumulation in a patient's wound, a negative pressure drainage kit is usually used to suction out the fluid, thereby preventing the wound from worsening and accelerating wound healing.
[0003] Currently, most negative pressure wound therapy (NPWT) kits have several drawbacks during use. The drainage bottle continuously draws fluid from the wound into the bottle, and most of these bottles lack effective monitoring features. This makes it difficult for medical staff to observe the fluid accumulation in the bottle, and they cannot quickly replace the bottle once it is full. Furthermore, when suctioning fluid from the wound, excessive suction often causes skin tissue to be sucked up by the drainage tube, leading to congestion within the skin tissue.
[0004] Based on this, this application proposes a wound negative pressure drainage kit. Summary of the Invention
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wound negative pressure drainage kit.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a wound negative pressure drainage kit, comprising a drainage bottle, a drainage tube, and a puncture needle. The drainage bottle has a port fixedly connected to its upper part, a top cap threadedly connected to the upper outer circumference of the port, a fixing ring fixedly connected to the outer circumference of the top cap, a breakable protrusion fixedly connected to the lower part of the fixing ring, an easy-break tube provided on the upper right side of the drainage bottle, a safety valve fixedly connected to the upper end of the easy-break tube, a needle fixedly connected to the middle of the top cap, a connector fixedly connected to the upper end of the needle, a sealing membrane fixedly connected to the lower inner side of the port, a transparent frame provided at the front of the drainage bottle, a fluorescent float provided inside the transparent frame, a safety cap fixedly connected to the top of the transparent frame, a through hole provided on the lower rear side of the transparent frame, graduations provided on the inner wall of the transparent frame, a soft pad fixedly connected to the lower part of the drainage tube, and an interface fixedly connected to the upper end of the puncture needle.
[0007] As a further description of the above technical solution:
[0008] The needle is positioned on the upper part of the sealing membrane.
[0009] As a further description of the above technical solution:
[0010] The breakage protrusion is located on the left side of the middle part of the easily broken tube.
[0011] As a further description of the above technical solution:
[0012] The through hole is connected to the inside of the drainage bottle.
[0013] As a further description of the above technical solution:
[0014] The cushion has multiple evenly distributed hollow holes inside.
[0015] As a further description of the above technical solution:
[0016] The lower end of the puncture needle is provided with a blade tip, and a drainage channel is provided in the middle of the puncture needle and the interface.
[0017] As a further description of the above technical solution:
[0018] The lower end of the flexible tube is connected to the inside of the drainage bottle, and the upper end of the flexible tube is connected to the safety valve.
[0019] As a further description of the above technical solution:
[0020] The upper two sides of the drainage bottle are fixedly connected with fixing holes.
[0021] Beneficial effects
[0022] The present invention has the following beneficial effects:
[0023] 1. In this invention, through the combination of a transparent frame, scale, through hole, fluorescent float and safety cap, when the drainage bottle is filled with fluid, the fluid will float the fluorescent float. When the fluorescent float touches the safety cap, the drainage bottle is about to be filled with fluid, and then a new drainage bottle can be replaced. This makes the wound negative pressure drainage kit convenient for medical staff to quickly observe the amount of fluid in the drainage bottle and replace the full drainage bottle in time.
[0024] 2. In this invention, the combination of drainage tube, soft pad, and hollow hole avoids the problem of skin tissue being sucked up by drainage tube due to excessive suction when aspirating fluid inside the wound; the soft pad separates the skin tissue from the drainage tube, and the hollow hole can further work with the soft pad to cushion the skin tissue at the patient's wound, preventing congestion inside the skin tissue. Attached Figure Description
[0025] Figure 1 This is a three-dimensional view of the drainage bottle of the wound negative pressure drainage kit proposed in this invention;
[0026] Figure 2 This is a schematic diagram of the top cover structure of the wound negative pressure drainage kit proposed in this invention;
[0027] Figure 3 This is a schematic diagram of the internal structure of the transparent frame of the wound negative pressure drainage kit proposed in this invention;
[0028] Figure 4 This is a schematic diagram of the drainage tube structure of the wound negative pressure drainage kit proposed in this invention;
[0029] Figure 5 This is a schematic diagram of the puncture needle structure of the wound negative pressure drainage kit proposed in this invention.
[0030] Legend:
[0031] 1. Connector; 2. Top cover; 3. Fixing ring; 4. Fixing hole; 5. Drainage bottle; 6. Transparent frame; 7. Safety valve; 8. Easy-break tube; 9. Port; 10. Needle; 11. Sealing membrane; 12. Breaking protrusion; 13. Safety cap; 14. Fluorescent float; 15. Through hole; 16. Scale; 17. Drainage tube; 18. Soft pad; 19. Hollow hole; 20. Drainage channel; 21. Interface; 22. Puncture needle; 23. Blade tip. Detailed Implementation
[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0033] Reference Figure 1-5 An embodiment of the present invention provides a wound negative pressure drainage kit, comprising a drainage bottle 5, a drainage tube 17, and a puncture needle 22. The wound negative pressure drainage kit internally includes a drainage bottle 5, a drainage tube 17, a puncture needle 22, an outer drainage tube, a fixing suture, a fixing patch, a sterile dressing, sterile forceps, gloves, and a closed sterile outer packaging. The upper part of the drainage bottle 5 is fixedly connected to a port 9, and the upper outer periphery of the port 9 is threadedly connected to a top cover 2. The outer periphery of the top cover 2 is fixedly connected to a fixing ring 3, and the lower part of the fixing ring 3 is fixedly connected to a breakable protrusion 12. The upper right side of the drainage bottle 5 is provided with a flexible tube 8, and the upper end of the flexible tube 8 is fixedly connected to a safety valve 7. The safety valve 7 is a one-way valve, which can evacuate the inside of the drainage bottle 5 by a vacuuming device, and at the same time, when the vacuuming device is withdrawn from the safety valve 7, it can ensure that the inside of the drainage bottle 5 is in a sealed state.
[0034] The skin at the patient's wound site is punctured using a skin puncture needle 22. The needle 22 is then withdrawn, allowing one end of the drainage tube 17 to be inserted into the skin. The other end of the drainage tube 17 is then connected to the connector 1. The vacuum equipment's pipe and safety valve 7 are then connected. The vacuum equipment is activated to extract air from the drainage bottle 5 through the flexible tube 8, creating a negative pressure inside the drainage bottle 5. The vacuum equipment's pipe and safety valve 7 are then separated, allowing the safety valve 7 to seal the front end of the flexible tube 8, thus maintaining a negative pressure inside the drainage bottle 5. A needle 10 is fixedly connected to the middle of the top cover 2, and a connector 1 is fixedly connected to the upper end of the needle 10. A sealing membrane 11 is fixedly connected to the lower side of the port 9. A transparent frame 6 is provided at the front of the drainage bottle 5, and a fluorescent float 14 is provided inside the transparent frame 6. A safety cap 13 is fixedly connected to the top of the transparent frame 6. A through hole 15 is provided on the lower rear side of the transparent frame 6, and a scale 16 is provided on the inner wall of the transparent frame 6.
[0035] Once ready, medical staff tighten the top cap 2, causing it to move downwards along the outside of the port 9. This allows the needle 10 inside the top cap 2 to move downwards and puncture the sealing membrane 11. At this time, the negative pressure inside the drainage bottle 5 will cause the needle 10 to generate suction, and through the drainage tube 17 connected to the connector 1, the fluid inside the wound will be sucked into the drainage bottle 5. As the fluid continuously enters the drainage bottle 5, it will enter the transparent frame 6 through the through hole 15, thereby lifting the fluorescent float 14 inside the transparent frame 6. As the fluid increases, the fluorescent float 14 will continuously float upwards. Medical staff can determine the volume of fluid inside the drainage bottle 5 by observing the position of the fluorescent float 14, and accurately read the volume of fluid using the scale 16 distributed on the inner wall of the transparent frame 6. When the fluorescent float 14 is pushed to the bottom of the safety cap 13 by the fluid, the fluid inside the drainage bottle 5 is close to full, and medical staff can replace the drainage bottle 5 in time to prevent the fluid inside the drainage bottle 5 from overflowing.
[0036] A soft pad 18 is fixedly connected to the lower part of the drainage tube 17. When the drainage tube 17 is suctioning the fluid inside the wound, the skin tissue is sucked up by the drainage tube 17 due to excessive suction. The soft pad 18 can separate the skin tissue from the drainage tube 17, thereby buffering the skin tissue and preventing congestion inside the skin tissue. An interface 21 is fixedly connected to the upper end of the puncture needle 22.
[0037] The needle 10 is positioned on the upper part of the sealing membrane 11. As the top cover 2 is twisted, the needle 10 will pierce the sealing membrane 11 downwards, thereby aspirating the fluid accumulated in the wound. The break protrusion 12 is located on the left side of the middle part of the easy-break tube 8. After the fluid accumulates, the top cover 2 can be twisted to loosen it. As the top cover 2 moves upwards along the port 9, the break protrusion 12 at the lower part of the fixing ring 3 will contact the easy-break part in the middle of the easy-break tube 8, thereby breaking the easy-break tube 8. Subsequently, the top cover 2 will also be removed from the outside of the port 9, so that the drainage bottle 5 cannot be reused after opening, ensuring that the wound negative pressure drainage kit can only be used once, avoiding cross-infection caused by multiple patients using it. The through hole 15 is connected to the inside of the drainage bottle 5. The fluid inside the drainage bottle 5 will enter the inside of the transparent frame 6 through the through hole 15, thereby making the fluorescent float 14 float. The soft pad 18 is provided with multiple evenly distributed hollow holes 19 inside. The hollow holes 19 can further help the soft pad 18. The skin tissue at the patient's wound site is cushioned to prevent internal congestion. The lower end of the puncture needle 22 is equipped with a blade tip 23, which can easily puncture the skin. Then, the puncture needle 22 is fixed to the skin with a fixation patch, which facilitates the insertion of the drainage tube 17 into the wound along the puncture needle 22. After drainage, the wound can be sutured with a fixation suture, and then a sterile dressing is applied to the wound. A drainage channel 20 is provided in the middle of the puncture needle 22 and the interface 21. The drainage channel 20 can drain excess fluid after the puncture needle 22 pierces the skin. The lower end of the easy-break tube 8 is connected to the inside of the drainage bottle 5, and the upper end of the easy-break tube 8 is connected to the safety valve 7. The safety valve 7, which has a one-way valve structure, is used to evacuate the inside of the drainage bottle 5, thereby maintaining the inside of the drainage bottle 5 in a negative pressure state. Fixing holes 4 are fixedly connected to both sides of the upper part of the drainage bottle 5. The drainage bottle 5 is fixed to the patient's bedside through the fixing holes 4 and ropes.
[0038] Working principle: The skin at the patient's wound site is punctured using a skin puncture needle 22. The needle 22 is then withdrawn, allowing one end of the drainage tube 17 to penetrate the skin. The other end of the drainage tube 17 is then connected to connector 1. The vacuum equipment's pipe and safety valve 7 are then connected. The vacuum equipment is activated, drawing air out of the drainage bottle 5 through the flexible tube 8, creating a negative pressure inside the bottle. The vacuum equipment's pipe and safety valve 7 are then separated, allowing the safety valve 7 to seal the front end of the flexible tube 8, maintaining a negative pressure inside the drainage bottle 5. Once ready, medical personnel tighten the top cap 2, moving it downwards along the outside of port 9. This allows the needle 10 inside the top cap 2 to move downwards and puncture the sealing membrane 11. The negative pressure inside the drainage bottle 5 creates suction from the needle 10, drawing the accumulated fluid from the wound into the drainage bottle 5 through the drainage tube 17 connected to connector 1. As the fluid continuously enters the drainage bottle 5, it is drawn through the... The orifice 15 enters the interior of the transparent frame 6, thereby lifting the fluorescent float 14 inside the transparent frame 6. As the accumulated fluid increases, the fluorescent float 14 continuously rises. Medical staff can determine the volume of fluid inside the drainage bottle 5 by observing the position of the fluorescent float 14, and accurately read the volume of fluid using the scale 16 distributed on the inner wall of the transparent frame 6. When the fluorescent float 14 is pushed to the bottom of the safety cap 13 by the accumulated fluid, the fluid inside the drainage bottle 5 is nearly full, and medical staff can then promptly... Replace the drainage bottle 5 to prevent the fluid inside the drainage bottle 5 from overflowing. After the fluid is full, the top cover 2 can be screwed on to loosen it. As the top cover 2 moves upward along the port 9, the breakage protrusion 12 at the bottom of the fixing ring 3 will contact the easy-break part in the middle of the easy-break tube 8, thereby breaking the easy-break tube 8. Then the top cover 2 will also be removed from the outside of the port 9, so that the drainage bottle 5 cannot be used again after it is opened, ensuring that the wound negative pressure drainage kit can only be used once, avoiding cross-infection caused by multiple patients using it.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A wound negative pressure drainage kit, comprising a drainage bottle (5), a drainage tube (17), and a puncture needle (22), characterized in that: The upper part of the drainage bottle (5) is fixedly connected to a port (9), and a top cover (2) is threadedly connected to the outer periphery of the upper part of the port (9). A fixing ring (3) is fixedly connected to the outer periphery of the top cover (2), and a breakable protrusion (12) is fixedly connected to the lower part of the fixing ring (3). An easy-break tube (8) is provided on the upper right side of the drainage bottle (5), and a safety valve (7) is fixedly connected to the upper end of the easy-break tube (8). A needle (10) is fixedly connected to the middle of the top cover (2), and a connector (1) is fixedly connected to the upper end of the needle (10). A sealing membrane (11) is fixedly connected to the lower side inside the port (9). A transparent frame (6) is provided at the front of the drainage bottle (5). A fluorescent float (14) is provided inside the transparent frame (6). A safety cap (13) is fixedly connected to the top of the transparent frame (6). A through hole (15) is provided at the lower rear side of the transparent frame (6). A scale (16) is provided on the inner wall of the transparent frame (6). A soft pad (18) is fixedly connected to the lower part of the drainage tube (17). An interface (21) is fixedly connected to the upper end of the puncture needle (22).
2. The wound negative pressure drainage kit according to claim 1, characterized in that: The needle (10) is positioned on the upper part of the sealing membrane (11).
3. The wound negative pressure drainage kit according to claim 1, characterized in that: The breakage protrusion (12) is located on the left side of the middle part of the brittle tube (8).
4. The wound negative pressure drainage kit according to claim 1, characterized in that: The through hole (15) and the drainage bottle (5) are internally connected.
5. The wound negative pressure drainage kit according to claim 1, characterized in that: The cushion (18) has a plurality of evenly distributed hollow holes (19) inside.
6. The wound negative pressure drainage kit according to claim 1, characterized in that: The lower end of the puncture needle (22) is provided with a blade tip (23), and a drainage channel (20) is provided in the middle of the puncture needle (22) and the interface (21).
7. The wound negative pressure drainage kit according to claim 1, characterized in that: The lower end of the flexible tube (8) is connected to the inside of the drainage bottle (5), and the upper end of the flexible tube (8) is connected to the safety valve (7).
8. The wound negative pressure drainage kit according to claim 1, characterized in that: The upper two sides of the drainage bottle (5) are fixedly connected with fixing holes (4).