Visual negative pressure drainage dressing and negative pressure suction device

Abstract

The utility model discloses a visual negative pressure drainage dressing and a flushing negative pressure suction device, the visual negative pressure drainage dressing comprises a self-adhesive medical film and a foam drainage material, the self-adhesive medical film and the foam drainage material are of an integrated structure, and the visual medical dressing is provided with a drainage window and an observation window; when the visual medical dressing is used, after the protective paper is torn off and removed, the visual medical dressing is pasted to normal skin around a wound to form a closed wound treatment cavity; the foam drainage material is arranged in the mounting cavity, and a first through hole and a second through hole are formed in the foam drainage material; the flushing pipe penetrates through the drainage window and then is arranged at the bottom of the foam drainage material; and the negative pressure suction tube is arranged on the flushing tube in a sleeving manner. Due to the integrated design, the medical negative pressure drainage dressing is transparent and visual, medical staff can conveniently observe changes of a wound surface at any time, and the negative pressure drainage dressing can be used for rapidly installing and sealing the wound surface and rapidly installing and washing a drainage tube.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a visual negative pressure drainage dressing and a negative pressure suction device. Background Technology

[0002] Wounds, lesions, and cavities caused by various primary diseases or surgeries are common clinical conditions. Currently, the treatment of burns and scalds mainly relies on debridement and dressing changes, various dressings, and vacuum sealing drainage (VSD) techniques. Among these, VSD is one of the mainstream treatment techniques for difficult-to-heal wounds, widely used, and has achieved good results.

[0003] VSD (Vacuum-Assisted Surgery) technology is widely used globally. However, current VSD technology has the following drawbacks: The foam drainage material covering the wound and the medical dressing sealing the wound are separate. Doctors and nurses first cover the wound with foam drainage material and then seal it with the dressing. Sealing larger wounds takes a long time and may even result in incomplete sealing, leading to leaks during suction by electric negative pressure devices. The long sealing time not only increases the workload of medical staff but may also affect patient resuscitation. VSD technology is difficult and time-consuming to install, with routine dressing changes every 5-7 days. Because the negative pressure drainage dressing is opaque, doctors cannot observe wound changes in real time, such as after skin grafts or flap transfers, to observe the blood circulation of the flaps. Clinically, this hinders timely assessment of wound changes and adjustments to wound treatment methods. VSD technology connects to negative pressure devices for suction and drainage, but can only adjust the negative pressure value, offering limited functionality and failing to align with the trend towards digital wound management.

[0004] Currently, there are no suitable solutions or technology products for the above problems with VSD technology. Utility Model Content

[0005] The technical problem to be solved by this utility model is to achieve visualization of negative pressure drainage dressings and rapid installation and sealing of wounds with negative pressure drainage dressings.

[0006] To address the aforementioned technical problems, this utility model provides a visual negative pressure drainage dressing and a flushing negative pressure suction device, comprising: a visual medical dressing, the visual medical dressing including an integrated self-adhesive medical film and a foam drainage material, the visual medical dressing having a drainage window and an observation window; a self-adhesive medical film, the self-adhesive medical film having the drainage window and the observation window, the observation window having a transparent sealing film above it; a protective paper, the self-adhesive medical film and the protective paper forming an installation cavity for the foam drainage material, after the protective paper is torn off, the self-adhesive medical film can be self-adhere to human skin; and foam drainage material, the foam drainage material being disposed within the installation cavity. The foam drainage material has a first through hole and a second through hole that are installed in conjunction with the self-adhesive medical film. The first through hole corresponds to the drainage window, and the second through hole corresponds to the observation window. A flushing tube is provided, with its first end passing through the first through hole and positioned at the bottom of the foam drainage material. A negative pressure suction tube is provided, with its first end connected to the drainage window. The negative pressure suction tube is sleeved on the flushing tube, with a gap between the inner wall of the negative pressure suction tube and the outer wall of the flushing tube. The negative pressure suction tube has a flushing tube mounting hole, through which its second end passes. A negative pressure terminal is provided, with its negative pressure end connected to the second end of the negative pressure suction tube.

[0007] Furthermore, the negative pressure suction tube includes a tube body, a suction cup, and a flushing tube fixing component. The suction cup is disposed on the first end of the tube body and is sealed to the drainage window. The tube body is connected to the drainage window through the suction cup. The flushing tube fixing component is disposed on the tube body, and the flushing tube mounting hole is disposed on the flushing tube fixing component. The first end of the flushing tube passes through the inside of the suction cup and is disposed at the bottom of the foam drainage material.

[0008] Furthermore, the flushing tube is provided with an end cap, which is connected to the second end of the flushing tube. The end cap can seal the second end port of the flushing tube and is located above the flushing tube fixing member.

[0009] Furthermore, the suction cup edge is provided with a transparent suction cup film, which is attached to the self-adhesive medical film and is located around the drainage window.

[0010] Furthermore, the self-adhesive medical film also has a transparent portion, which is located within the observation window.

[0011] Furthermore, the foam drainage material includes a lower membrane layer, a liquid storage layer, and an upper membrane layer. The liquid storage layer is disposed between the lower membrane layer and the upper membrane layer. The upper membrane layer abuts against the self-adhesive medical film, and the lower membrane layer abuts against the protective paper. The first through hole and the second through hole penetrate the lower membrane layer, the liquid storage layer, and the upper membrane layer.

[0012] Furthermore, the first end port of the flushing tube is an inclined port, the first end port of the flushing tube is located below the second through hole, and the first end port of the flushing tube is oriented inclined upward.

[0013] Furthermore, the foam drainage material is a compressible foam absorbent drainage material. After removing the protective paper, the compressible foam absorbent drainage material is adhered to the normal skin around the wound. The compressible foam absorbent drainage material expands after absorbing liquid, which increases the volume of the mounting cavity, thereby generating a micro-negative pressure for wound treatment.

[0014] Compared with existing technologies, the visual negative pressure drainage dressing and irrigation negative pressure suction device provided in this embodiment of the invention have the following advantages: The transparent and visible medical dressing allows for real-time observation of wound changes; the self-adhesive negative pressure drainage dressing allows for quick installation and sealing of the wound; furthermore, the negative pressure suction tube is sleeved on the irrigation tube, resulting in only one connection point between the irrigation tube, the negative pressure suction tube, and the self-adhesive medical film. Strengthening the connection between the negative pressure suction tube and the self-adhesive medical film enhances the dressing's sealing performance. The transparent and visible medical dressing allows for real-time observation of wound changes; the ability to quickly close the wound (or lesion) with the negative pressure drainage dressing and connect the irrigation negative pressure suction drainage tube facilitates the application of VSD technology. Attached Figure Description

[0015] Figure 1 This is a first perspective view of the visual negative pressure drainage dressing provided by this utility model;

[0016] Figure 2 This is an exploded view of the visual negative pressure drainage dressing provided by this utility model;

[0017] Figure 3 This is a second perspective view of the visual negative pressure drainage dressing provided by this utility model;

[0018] Figure 4 This is a cross-sectional view of the visual negative pressure drainage dressing provided by this utility model;

[0019] Figure 5 This is a first schematic diagram of the visual negative pressure drainage dressing and negative pressure suction device provided by this utility model;

[0020] Figure 6This is a second schematic diagram of the visual negative pressure drainage dressing and negative pressure suction device provided by this utility model.

[0021] The correspondence between the reference numerals and the component names is as follows:

[0022] 1. Self-adhesive medical film; 11. Transparent part; 111. Transparent film; 112. Observation window; 101. Drainage window; 2. Protective paper; 201. Installation cavity; 3. Foam drainage material; 31. Lower epithelial layer; 32. Liquid reservoir layer; 33. Upper epithelial layer; 301. First through hole; 302. Second through hole; 4. Irrigation tube; 41. End cap; 401. Irrigation tube installation hole; 5. Negative pressure suction tube; 51. Tube body; 52. Suction cup; 521. Suction cup transparent film; 53. Irrigation tube fixing piece; 6. Negative pressure terminal; 7. Irrigation fluid bottle; 8. Near-infrared red light therapy pad; 9. Wound limb. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope. It should be noted that, unless otherwise specifically stated, the relative arrangement and numerical values ​​of the components and steps described in these examples do not limit the scope of this utility model.

[0024] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0026] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0028] like Figures 1 to 6 As shown, an embodiment of the present invention in the first aspect provides a visual negative pressure drainage dressing and a rinsing negative pressure suction device, comprising: an integrated self-adhesive medical film 1, a protective paper 2, a foam drainage material 3, a rinsing tube 4, a negative pressure suction tube 5, and a negative pressure terminal 6.

[0029] The self-adhesive medical film 1 has a drainage window 101 and an observation window 112. A transparent film 111 for sealing is provided above the observation window. The self-adhesive medical film 1 and the protective paper 2 form an installation cavity 201. After the protective paper 2 is torn off, the self-adhesive medical film 1 can be self-adhere to human skin. Foam drainage material 3 is placed in the installation cavity 201. The foam drainage material 3 has a first through hole 301 and a second through hole 302 installed in the same manner as the self-adhesive medical film. The first through hole 301 corresponds to the drainage window 101. The second through hole 302 corresponds to the observation window 112; the first end of the flushing tube 4 passes through the first through hole 301 and is set at the bottom of the foam drainage material 3; the first end of the negative pressure suction tube 5 is connected to the drainage window 101, the negative pressure suction tube 5 is sleeved on the flushing tube 4, a gap is left between the inner wall of the negative pressure suction tube 5 and the outer wall of the flushing tube 4, the negative pressure suction tube 5 is provided with a flushing tube installation hole 401 for the flushing tube 4, the second end of the flushing tube 4 passes through the flushing tube installation hole 401, and the negative pressure end of the negative pressure terminal 6 is connected to the second end of the negative pressure suction tube 5.

[0030] The visualized negative pressure drainage dressing of this application, by sleeved the negative pressure suction tube 5 onto the irrigation tube 4, ensures that there is only one connection point between the irrigation tube 4, the negative pressure suction tube 5, and the self-adhesive medical film 1. Strengthening the connection between the negative pressure suction tube 5 and the self-adhesive medical film 1 enhances the dressing's sealing performance. The transparent and visualized medical dressing allows for real-time observation of wound changes; the self-adhesive negative pressure drainage dressing enables rapid installation and wound sealing.

[0031] The integrated design of this utility model makes the medical dressing transparent and visible, making it convenient for medical staff to observe changes in the wound at any time; the self-adhesive negative pressure drainage dressing can quickly close the wound (or lesion) and connect to the irrigation negative pressure suction tube 5, saving medical staff installation and operation time and facilitating the application of digital wound treatment technologies such as VSD.

[0032] After tearing off the protective paper 2, the self-adhesive medical film 1 can be quickly attached to the wound limb 9. Medical staff can observe the wound 24 hours a day through the observation window 112. By placing one end of the irrigation tube 4 at the bottom of the foam drainage material 3 and connecting the other end of the irrigation tube 4 to the cleaning solution bottle, the patient's wound can be cleaned. By sleeved on the irrigation tube 4 with the negative pressure suction tube 5, the gap between the inner wall of the negative pressure suction tube 5 and the outer wall of the irrigation tube 4 allows the negative pressure terminal 6 to absorb the wound tissue fluid and the irrigation solution output from the irrigation tube 4. By sleeved on the irrigation tube 4 with the gap between them, the sealing and stability of the negative pressure suction tube 5 and the irrigation tube 4 are ensured, making the negative pressure drainage more efficient, helping to continuously and effectively drain secretions from the wound, reducing the risk of infection, and promoting wound healing.

[0033] The installation cavity 201 formed by the self-adhesive medical dressing 1 and the protective paper 2 provides stronger sealing, preventing liquid leakage and improving comfort and safety during use. The combined use of the irrigation tube 4 and the negative pressure suction tube 5 allows the dressing to not only effectively drain secretions but also continuously irrigate and clean the wound, reducing infection sources and promoting wound surface cleanliness, ensuring healthy wound healing. By integrating the negative pressure suction tube 5 and the irrigation tube 4, structural complexity and connection points are reduced, making operation and maintenance simpler. Users can more easily replace and adjust the dressing, improving the convenience and efficiency of clinical applications. The self-adhesive medical dressing 1 allows for rapid sealing on the body, reducing medical workload and not affecting important treatments such as emergency care; the irrigation tube 4 adds an irrigation structure to the visualized negative pressure drainage dressing, allowing adjustment of wound humidity, temperature, and pH through the irrigation liquid. Specifically, the protective paper 2 at the bottom is made of plastic-like paper such as glass or PE.

[0034] like Figure 2 and Figure 3 As shown, in an optional embodiment of the utility model, the negative pressure suction tube 5 includes a tube body 51, a suction cup 52, and a flushing tube fixing member 53 for fixing the flushing tube 4. The suction cup 52 is disposed on the first end of the tube body 51 and is sealed to the drainage window 101. The tube body 51 is connected to the drainage window 101 through the suction cup 52. The flushing tube fixing member 53 is disposed on the tube body 51, and the flushing tube mounting hole 401 is disposed on the flushing tube fixing member 53. The flushing tube 4 is disposed inside the tube body 51 and has a certain length extending out from inside the suction cup 52.

[0035] The suction cup 52 of the negative pressure suction tube 5 is sealed to the drainage window 101, ensuring a tight seal during drainage, reducing secretion leakage, and promoting wound healing. The sealed connection between the suction cup 52, tube body 51, and drainage window 101 prevents liquid leakage, improves the stability and sealing of the dressing, and effectively prevents the entry of infection sources. The design of the irrigation tube fixing piece 53 and the irrigation tube mounting hole 401 simplifies the installation and replacement process of the irrigation solution bottle 7, enabling medical staff to complete the operation quickly and safely, and improving the convenience of clinical application.

[0036] Specifically, the suction cup 52 has a transparent suction cup film 521 on its edge, which is used to attach to the self-adhesive medical film 1 around the drainage window 101.

[0037] like Figure 1 and Figure 4 As shown, in an optional embodiment of the utility model, the flushing tube 4 is provided with an end cap 41, which is connected to the second end of the flushing tube 4. The end cap 41 can seal the second end port of the flushing tube 4 and is located at the top of the flushing tube 4 that extends out of the flushing tube fixing member 53.

[0038] The end cap 41 seals the second end port of the irrigation tube 4, preventing liquid leakage, ensuring the sealing of the irrigation process, and reducing the risk of external contamination. The sealed connection between the end cap 41 and the irrigation tube 4 effectively prevents unnecessary leakage or contamination, ensuring the wound remains clean during use and improving treatment safety. The end cap 41, located above the irrigation tube fixing member 53, facilitates the flow of cleaning fluid from the irrigation fluid bottle 7 into the visible negative pressure drainage dressing. Simultaneously, it facilitates operation by medical staff, simplifying the installation, use, and replacement of the dressing, thus improving the efficiency and convenience of clinical treatment.

[0039] like Figure 1 and Figure 3 As shown, in an optional embodiment of the utility model, a transparent suction cup film 521 is provided on the edge of the suction cup 52. The transparent suction cup film 521 is attached to the self-adhesive medical film 1 and is located around the drainage window 101.

[0040] The transparent suction cup film 521, positioned around the edge of the suction cup 52, effectively seals the drainage window 101, preventing liquid leakage and air ingress, improving the dressing's seal, and reducing the risk of infection. The transparent suction cup film 521 is bonded to the self-adhesive medical film 1, ensuring the stability and efficiency of negative pressure drainage, maintaining a continuous negative pressure state, and promoting wound drainage and healing. The presence of the transparent suction cup film 521 effectively blocks external contaminants, preventing bacteria or other harmful substances from entering the wound area, further reducing the chance of infection and ensuring the safety of the treatment process. The transparent suction cup film 521, attached around the drainage window 101, facilitates the connection of the negative pressure suction tube 5 to the self-adhesive medical film 1 by medical personnel, while also ensuring the stability of the negative pressure suction tube 5 during use, reducing the possibility of displacement or detachment, and improving patient comfort and treatment effectiveness.

[0041] like Figure 1 and Figure 3 As shown, in an optional embodiment of the utility model, the self-adhesive medical film 1 is further provided with a transparent part 11, and the foam drainage material 3 is further provided with a second through hole 302, which corresponds to the transparent part 11.

[0042] By incorporating a transparent portion 11 into the self-adhesive medical dressing 1, medical staff can directly observe the wound, preventing incomplete wound coverage and facilitating timely assessment of wound healing progress and determination of whether treatment adjustments are necessary. The second through-hole 302 corresponds to the transparent portion 11, effectively ensuring clear visibility of fluid flow and the wound surface during negative pressure drainage. This helps medical staff assess drainage patency, promptly identify abnormalities, and take necessary measures. The combination of the transparent portion 11 and the second through-hole 302 allows for more precise wound care, better control over dressing usage time and environment, and prevents treatment outcomes from being affected by delayed dressing changes or maintenance.

[0043] The transparent section 11 allows for a clear view of the dressing and wound, reducing psychological stress and improving cooperation and comfort during treatment. The transparent section 11 effectively integrates the functions of the foam drainage material 3, making negative pressure drainage and wound monitoring more coordinated, thus enhancing the overall functionality and effectiveness of the medical dressing. Due to the transparent section 11, medical staff can observe changes in the wound in real time, promptly understand its condition, and accurately monitor and adjust the treatment process, thereby improving the safety and precision of nursing care.

[0044] like Figure 2 As shown, in an optional embodiment of the utility model, the foam drainage material 3 includes a lower membrane layer 31, a liquid storage layer 32, and an upper membrane layer 33. The liquid storage layer 32 is disposed between the upper membrane layer 33 and the lower membrane layer 31. The upper membrane layer 33 abuts against the self-adhesive medical film 1, and the lower membrane layer 31 abuts against the protective paper 2. The first through hole 301 and the second through hole 302 penetrate the lower membrane layer 31, the liquid storage layer 32, and the upper membrane layer 33.

[0045] The multi-layered structure of the foam drainage material 3 (lower epithelial layer 31, fluid reservoir layer 32, and upper epithelial layer 33) allows the dressing to more effectively absorb and store wound secretions, keeping the wound dry, reducing the risk of infection, and promoting wound healing. The different layers allow for better distribution and drainage of fluids, preventing fluid accumulation, ensuring a stable environment around the wound, and facilitating negative pressure drainage and wound management. The upper epithelial layer 33 abuts against the self-adhesive medical film 1, and the lower epithelial layer 31 abuts against the protective paper 2, effectively improving the dressing's seal, preventing external contaminants from entering, and ensuring the dressing adheres firmly to the skin, reducing detachment. The first through-hole 301 and the second through-hole 302 penetrate each layer, forming a clear fluid drainage channel, helping to quickly drain wound exudate, reducing swelling and discomfort, and improving treatment effectiveness. The multi-layered structure ensures the dressing's flexibility and comfort, while effectively isolating the wound from external contact, reducing friction, avoiding skin irritation or damage, and improving safety and comfort during use.

[0046] like Figure 4 As shown, in an optional embodiment of the utility model, the first end port of the flushing pipe 4 is an inclined port, the first end port of the flushing pipe 4 is located below the second through hole 302, and the first end port of the flushing pipe 4 is oriented inclined upward.

[0047] By setting the first end of the irrigation tube 4 as an inclined port, oriented upwards, the liquid flows into the wound area during irrigation and then upwards through the negative pressure suction tube 5 at the drainage window 101. This ensures an effective irrigation flow on the wound surface, removing foreign objects and bacteria and reducing the risk of infection. The position and direction of the inclined port better guide the irrigation fluid to the target area, avoiding excessive splashing or uneven distribution caused by straight-line impact, ensuring that the irrigation fluid around the wound can more concentratedly and effectively contact the wound surface. Optimizing the irrigation flow direction helps clean the wound surface and deep within the wound, reducing the accumulation of secretions and bacteria on the wound surface, promoting wound healing, and reducing the occurrence of complications. The inclined port design makes the guidance of the irrigation fluid smoother and more directional in actual operation, avoiding liquid spillage or waste during use, and improving the comfort and effectiveness of dressing application. The inclined port helps reduce pain or discomfort caused by direct liquid impact on the wound surface, providing a more comfortable treatment experience through a gentler liquid flow, especially suitable for more sensitive wound areas.

[0048] Specifically, the distance between the first through hole 301 and the second through hole 302 is greater than or equal to half the length of the foam drainage material 3.

[0049] In an optional embodiment of the utility model, the foam drainage material 3 is a sheet-shaped compressible foam absorbent drainage material. After absorbing liquid, the sheet-shaped foam drainage material 3 expands into a column shape, supporting the wound (or lesion surface) and increasing the volume of the locally enclosed space. This creates a slight negative pressure within the installation cavity 201 when the wound (or lesion surface) is closed. After removing the protective paper, the compressible foam absorbent drainage material is adhered to the normal skin around the wound. The expansion of the compressible foam absorbent drainage material after absorbing liquid further increases the volume of the installation cavity, thereby generating a slight negative pressure for wound treatment.

[0050] The sheet-like compressible foam material has strong liquid absorption properties, effectively absorbing fluids secreted from the wound. After absorption, the foam material expands into a columnar shape, further increasing its absorption capacity, ensuring the wound area remains dry and helping to reduce the risk of infection. Once expanded into a columnar shape, the foam drainage material 3 generates a slight negative pressure within the installation cavity 201. This slight negative pressure helps accelerate the wound healing process, improves local blood circulation, and promotes cell regeneration and repair, particularly in trauma repair and postoperative wound management, accelerating recovery. The generation of slight negative pressure can effectively reduce wound swelling and inflammatory response, alleviate patient pain and discomfort, and improve patient comfort and compliance during treatment.

[0051] The absorbent properties of foam materials help keep wounds clean, absorbing excess exudate and pus, preventing them from remaining on the wound surface, reducing the chance of bacterial growth and infection. The columnar structure formed after the foam expands to absorb fluid provides good stability, making it less prone to breakage or failure, and effectively maintaining a slight negative pressure for a long time, ensuring continuous protection and support for the wound during treatment. Sheet-shaped compressible foam drainage material is suitable for various types of wounds, including surgical wounds, trauma, and burns, and provides an effective solution, especially for trauma treatments requiring long-term absorption and slight negative pressure, improving treatment outcomes. The continuous effect of slight negative pressure reduces frequent wound intervention and dressing changes, thereby reducing the workload of nursing staff and avoiding secondary injuries caused by frequent dressing changes, thus optimizing the nursing process. Specifically, the foam material is a three-dimensional interconnected network structure of polyvinyl alcohol foam sponge or polyurethane foam sponge; specifically, if the foam drainage material 3 is made of polyvinyl alcohol foam drainage material, the foam drainage material 3 has a multi-layer structure, such as a lower skin layer 31, a liquid storage layer 32 and an upper skin layer 33; if the foam drainage material 3 is made of polyurethane material, the foam drainage material has a single-piece molded structure.

[0052] like Figure 2 and Figure 4 As shown, in an optional embodiment of the utility model, the observation window 112 is provided with a transparent film 111, the observation window 112 is covered by the upper transparent film 111, the observation window 112 corresponds to the second through hole 302, and the transparent film 111 is pasted on the observation window 112.

[0053] By incorporating a transparent film 111 and an observation window 112 onto the self-adhesive medical dressing 1, medical staff and patients can easily observe the wound healing process, reducing the frequency of dressing changes and facilitating timely monitoring of wound recovery progress. This aids in wound condition assessment and management. Through the observation window 112, doctors can more accurately understand the specific condition of the wound, such as the presence of infection or discharge, allowing for more targeted treatment and care, thus improving treatment outcomes. While the transparent film 111 protects the wound, the observation window 112 provides visibility, avoiding frequent dressing removal and reducing the risk of secondary injury or infection that may occur during dressing changes, thereby improving patient comfort and nursing efficiency. Patients can directly observe the wound's healing progress through the transparent observation window 112, helping to reduce anxiety caused by uncertainty about the wound, increasing patient trust and confidence in the treatment process, and enhancing the overall treatment experience.

[0054] By removing the adhesive transparent film 111, a second flushing tube 4 is installed at the second through-hole 302 through the observation window 112, enhancing flushing efficiency. In addition to its functions of wound protection, waterproofing, and antibacterial properties, the transparent film 111, through the observation window 112, makes the entire dressing more comprehensive, providing both physical protection and meeting the needs of wound observation and assessment. The combination of the transparent film 111 and the observation window 112 makes wound observation simpler and faster, especially suitable for situations requiring frequent wound inspection, such as post-operative wounds, burns, and trauma, improving the efficiency and convenience of nursing care.

[0055] like Figure 5 and Figure 6 As shown, in an optional embodiment of the utility model, the visual negative pressure drainage dressing and the rinsing negative pressure suction device include a negative pressure terminal 6, a rinsing liquid bottle 7 and the aforementioned visual negative pressure drainage dressing. The negative pressure end of the negative pressure terminal 6 is connected to the second end of the negative pressure suction tube 5, and the rinsing liquid bottle 7 is connected to the second end of the rinsing tube 4.

[0056] After wound debridement and hemostasis, select an appropriately sized visual negative pressure drainage dressing, tear off the protective paper 2, and paste it to cover and seal the wound. Wound exudate slowly seeps out, and the compressible polyvinyl alcohol foam drainage material 3 absorbs the liquid and expands. The foam drainage material 3 itself generates a micro-negative pressure based on a principle similar to cupping, forming a pressure difference between the self-adhesive medical film 1 and the wound, achieving a micro-negative pressure treatment effect. If there is a large amount of wound exudate or severe necrosis and infection, high negative pressure suction or irrigation treatment is required. Install an irrigation tube 4 and a negative pressure suction tube 5 on the drainage window 101 of the self-adhesive medical film 1. The negative pressure suction tube 5 is fitted over the irrigation tube 4, and the irrigation tube 4 is trimmed to a suitable length and inserted between the wound and the compressible polyvinyl alcohol foam drainage material 3 at the drainage window 101. The negative pressure end of the negative pressure terminal 6 is connected to the second end of the negative pressure suction tube 5, and the irrigation fluid bottle 7 is connected to the second end of the irrigation tube 4.

[0057] Specifically, the negative pressure suction device is equipped with a near-infrared light therapy pad 8, which is connected to a humidity, temperature, and pressure control device for personalized treatment parameters. For example, wound cooling can be achieved by injecting room temperature saline solution through the irrigation tube 4. Wound warming can be achieved by setting the temperature of the near-infrared light therapy pad 8. Based on the pH test results of the wound exudate and bacterial culture, if acid-loving bacterial infection is detected, alkaline saline solution or medication can be instilled. The visual negative pressure drainage dressing is changed once every 5-7 days. Changes in the wound are observed at irregular intervals daily through the observation window 112 of the transparent part 11, and the wound is treated promptly.

[0058] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A visual negative pressure drainage dressing and negative pressure suction device, characterized in that, include: A visual medical dressing, comprising an integrated self-adhesive medical film and a foam drainage material, wherein the visual medical dressing is provided with a drainage window and an observation window; The self-adhesive medical film is provided with a drainage window and an observation window, and a transparent film for sealing is provided above the observation window; The protective paper and the self-adhesive medical film together form the installation cavity of the foam drainage material. After the protective paper is torn off, the self-adhesive medical film can be self-adhere to human skin. A foam drainage material is disposed within the installation cavity. The foam drainage material has a first through hole and a second through hole that are installed in conjunction with the self-adhesive medical film. The first through hole corresponds to the drainage window, and the second through hole corresponds to the observation window. A flushing tube, the first end of which, when in use, can pass through the first through hole and be positioned at the bottom of the foam drainage material; The negative pressure suction tube, when in use, is connected to the drainage window. The negative pressure suction tube is sleeved on the flushing tube. A gap is left between the inner wall of the negative pressure suction tube and the outer wall of the flushing tube. The negative pressure suction tube is provided with a flushing tube mounting hole. The second end of the flushing tube passes through the flushing tube mounting hole. A negative pressure terminal, wherein the negative pressure end of the negative pressure terminal is connected to the second end of the negative pressure suction tube.

2. The visual negative pressure drainage dressing and negative pressure suction device according to claim 1, characterized in that, The negative pressure suction tube includes a tube body, a suction cup, and a flushing tube fixing component. The suction cup is disposed on the first end of the tube body and is sealed to the drainage window. The tube body is connected to the drainage window through the suction cup. The flushing tube fixing component is disposed on the tube body, and the flushing tube mounting hole is disposed on the flushing tube fixing component. The first end of the flushing tube passes through the inside of the suction cup and is disposed at the bottom of the foam drainage material.

3. The visual negative pressure drainage dressing and negative pressure suction device according to claim 2, characterized in that, The flushing tube is provided with an end cap, which is connected to the second end of the flushing tube. The end cap can seal the second end port of the flushing tube and is located above the flushing tube fixing component.

4. The visual negative pressure drainage dressing and negative pressure suction device according to claim 2, characterized in that, The suction cup has a transparent film on its edge, which is attached to the self-adhesive medical film. The transparent film is located around the drainage window.

5. The visual negative pressure drainage dressing and negative pressure suction device according to claim 2, characterized in that, The self-adhesive medical film also has a transparent part, which is located inside the observation window.

6. The visual negative pressure drainage dressing and negative pressure suction device according to claim 5, characterized in that, The foam drainage material includes a lower membrane layer, a liquid storage layer, and an upper membrane layer. The liquid storage layer is disposed between the lower membrane layer and the upper membrane layer. The upper membrane layer abuts against the self-adhesive medical film, and the lower membrane layer abuts against the protective paper. The first through hole and the second through hole penetrate the lower membrane layer, the liquid storage layer, and the upper membrane layer.

7. The visual negative pressure drainage dressing and negative pressure suction device according to claim 5, characterized in that, The first end port of the flushing tube is an inclined port, located below the second through hole, and the first end port of the flushing tube is oriented inclined upward.

8. The visual negative pressure drainage dressing and negative pressure suction device according to claim 1, characterized in that, The foam drainage material is a compressible foam absorbent drainage material. After removing the protective paper, the compressible foam absorbent drainage material is adhered to the normal skin around the wound. The compressible foam absorbent drainage material expands after absorbing liquid, which increases the volume of the installation cavity, thereby generating a micro-negative pressure for wound treatment.

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