Visual negative pressure drainage dressing, flushing and suction device and use method

Abstract

The invention discloses a visual negative pressure drainage dressing, a flushing and suction device and a using method, the visual negative pressure drainage dressing comprises a self-adhesive medical film and a foam drainage material which 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. According to the integrated design, the medical negative pressure drainage dressing is transparent and visualized, 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 a sealed wound surface and rapidly installing a flushing drainage tube.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a visualized negative pressure drainage dressing and a flushing and suction device and a use method thereof. Background Art

[0002] Wounds, wound surfaces, wound cavities, etc. caused by various primary diseases or surgeries are common clinical diseases. At present, the treatment of burns and scalds and wound surfaces is still mainly based on debridement and dressing, various dressings, and negative pressure sealing drainage technology (Vacuum Sealing Drainage, VSD). Among them, VSD technology is one of the mainstream treatment technologies for difficult-to-heal wounds, which has been widely used and achieved good results.

[0003] VSD technology (traditional wound negative pressure therapy technology) is currently widely used around the world. However, the currently known VSD technology (traditional wound negative pressure therapy technology) has the following defects: the foam drainage material covering the wound and the medical film sealing the wound are separated. Doctors and nurses first cover the wound with foam drainage material, and then seal it with a film. It takes a long time to seal a large wound, and even the sealing is not complete, resulting in air leakage during suction by electric negative pressure machines, etc. The long film sealing time not only increases the workload of medical care, but also may affect the patient's rescue and treatment. VSD technology is difficult to install and takes a long time. The clinical routine is to change the dressing every 5-7 days. Because the negative pressure drainage dressing is opaque, doctors cannot observe the changes in the wound in real time. For example, after skin grafting, flap transfer and other operations, observe the blood circulation status of flaps, etc., and the clinic faces the inability to timely evaluate wound changes and switch wound treatment methods. VSD technology is connected to suction and drainage treatment such as negative pressure machines, and can only adjust the negative pressure value of wound treatment. It has a single function and does not conform to the development direction of digital wound treatment.

[0004] Currently, there are no suitable solutions or technical products for the above problems of VSD technology. Summary of the invention

[0005] The technical problem to be solved by the present invention is to solve the problem of visualization of negative pressure drainage dressing and rapid installation of negative pressure drainage dressing to seal wound surface.

[0006] In order to solve the above technical problems, the present invention provides a visualized negative pressure drainage dressing and a flushing and suction device, including: a visualized medical dressing, the visualized medical dressing includes a self-adhesive medical film and a foam drainage material of an integrated structure, the visualized medical dressing is provided with a drainage window and an observation window; a self-adhesive medical film, the self-adhesive medical film is provided with the drainage window and the observation window, and a transparent film for sealing is provided above the observation window; protective paper, the self-adhesive medical film and the protective paper are combined to form an installation cavity for the foam drainage material, after tearing off the protective paper, the self-adhesive medical film can be self-adhesive on human skin; foam drainage material, the foam drainage material is arranged in the installation cavity, the foam The drainage material is provided with a first through hole and a second through hole which are installed in unison with the self-adhesive medical film, the first through hole corresponding to the drainage window, and the second through hole corresponding to the observation window; a flushing tube, when the first end of the flushing tube is in use, it can be arranged at the bottom of the foam drainage material after passing through the first through hole; a negative pressure suction tube, when the first end of the negative pressure suction tube is in use, it 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, the negative pressure end of the negative pressure terminal is 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 piece, the suction cup is arranged on the first end of the tube body, the suction cup is sealedly connected to the drainage window, the tube body is connected to the drainage window through the suction cup, the flushing tube fixing piece is arranged on the tube body, the flushing tube mounting hole is arranged on the flushing tube fixing piece, and the first end of the flushing tube passes through the inside of the suction cup and is arranged at the bottom of the foam drainage material.

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

[0009] Furthermore, a transparent suction cup film is provided on the edge of the suction cup, the transparent suction cup film is adhesively connected to the self-adhesive medical film, and the transparent suction cup film is located around the drainage window.

[0010] Furthermore, the self-adhesive medical film is also provided with a transparent portion, and the transparent portion is located in the observation window.

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

[0012] Furthermore, the first end port of the flushing pipe is an inclined port, the first end port of the flushing pipe is located below the second through hole, and the first end port of the flushing pipe 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 pasted on the normal skin around the wound. The compressible foam absorbent drainage material expands after absorbing liquid, thereby increasing the volume of the installation cavity, thereby generating a micro-negative pressure for wound treatment.

[0014] A method for using a visualized negative pressure drainage dressing and a flushing and suction device, characterized in that it includes the following steps: after debridement and hemostasis, selecting a visualized medical dressing of a corresponding size to seal the wound according to the size of the wound; the visualized medical dressing expands after absorbing wound exudate, so that the volume of the sealed wound treatment cavity at the installation cavity position increases and the air pressure decreases, thereby generating a micro-negative pressure for wound treatment; if the visualized medical dressing cannot completely absorb the wound exudate, installing the negative pressure suction tube and the flushing tube on the drainage window on the visualized medical dressing, observing through the observation window, and setting the first end of the flushing tube between the wound and the visualized medical dressing; after the control parameters of the flushing and suction device are set, covering the near-infrared red light treatment pad of the flushing and suction device on the visualized medical dressing.

[0015] Compared with the prior art, the visualized negative pressure drainage dressing and flushing and suction device provided by the embodiment of the present invention have the following beneficial effects: through the transparent visualization of the medical dressing, the changes of the wound surface can be observed at any time; the wound surface can be quickly installed and sealed by the self-adhesive negative pressure drainage dressing; in addition, the negative pressure suction tube is sleeved on the flushing tube, so that there is only one connection between the flushing tube and the negative pressure suction tube and the self-adhesive medical film, and the sealing of the dressing can be enhanced by only reinforcing the connection between the negative pressure suction tube and the self-adhesive medical film. Through the transparent visualization of the medical dressing, the changes of the wound surface can be observed at any time; the negative pressure drainage dressing can quickly seal the wound (or wound surface) and connect the flushing negative pressure suction drainage tube, which is convenient for the application of VSD technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first stereoscopic image of the visualized negative pressure drainage dressing provided by the present invention;

[0017] Figure 2 is an exploded view of the visualized negative pressure drainage dressing provided by the present invention;

[0018] Figure 3 is a second stereoscopic image of the visualized negative pressure drainage dressing provided by the present invention;

[0019] Figure 4 is a cross-sectional view of the visualized negative pressure drainage dressing provided by the present invention;

[0020] Figure 5 It is a first schematic diagram of a visualized negative pressure drainage dressing and a negative pressure suction device provided by the present invention;

[0021] Figure 6 This is the second schematic diagram of the visualized negative pressure drainage dressing and negative pressure suction device provided by the present invention.

[0022] The corresponding relationship between the reference numerals and the component names is as follows:

[0023] 1. Self-adhesive medical film; 11. Transparent part; 111. Transparent film; 112. Observation window; 101. Drainage window; 2. Protective paper; 201. Mounting cavity; 3. Foam drainage material; 31. Lower epithelial layer; 32. Liquid storage layer; 33. Upper epithelial layer; 301. First through hole; 302. Second through hole; 4. Flushing tube; 41. End cover; 401. Flushing tube mounting hole; 5. Negative pressure suction tube; 51. Tube body; 52. Suction cup; 521. Transparent film for suction cup; 53. Flushing tube fixing piece; 6. Negative pressure terminal; 7. Flushing liquid bottle; 8. Near-infrared red light therapy pad; 9. Wounded limb. DETAILED DESCRIPTION

[0024] The specific embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings and Examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. It should be noted that unless otherwise specifically stated, the relative arrangement and numerical values ​​of the parts and steps described in these examples do not limit the scope of the present invention.

[0025] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0026] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0027] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0028] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0029] like Figures 1 to 6 As shown, an embodiment of the first aspect of the present invention provides a visualized negative pressure drainage dressing and flushing and suction device, comprising: an integrated self-adhesive medical film 1, a protective paper 2, a foam drainage material 3, a flushing tube 4, a negative pressure suction tube 5 and a negative pressure terminal 6.

[0030] The self-adhesive medical film 1 is provided with a drainage window 101 and an observation window 112, and a transparent sealing film 111 is provided above the observation window; the self-adhesive medical film 1 and the protective paper 2 are enclosed to form an installation cavity 201, and after tearing off the protective paper 2, the self-adhesive medical film 1 can be self-adhesive on human skin; the foam drainage material 3 is arranged in the installation cavity 201, and the foam drainage material 3 is provided with a first through hole 301 and a second through hole 302 which are installed in accordance with the self-adhesive medical film, and 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 is arranged at the bottom of the foam drainage material 3 after passing through the first through hole 301; the first end of the negative pressure suction tube 5 is connected to the drainage window 101, and the negative pressure suction tube 5 is sleeved on the flushing tube 4, and a gap is left between the inner wall of the negative pressure suction tube 5 and the outer wall of the flushing tube 4, and the negative pressure suction tube 5 is provided with a flushing tube mounting hole 401 of the flushing tube 4, and the second end of the flushing tube 4 passes through the flushing tube mounting 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.

[0031] The visualized negative pressure drainage dressing of the present application is provided with a negative pressure suction tube 5 sleeved on the flushing tube 4, so that there is only one connection between the flushing tube 4 and the negative pressure suction tube 5 and the self-adhesive medical film 1. The sealing of the dressing can be enhanced by simply reinforcing the connection between the negative pressure suction tube 5 and the self-adhesive medical film 1. The changes of the wound surface can be observed at any time through the transparent visualization of the medical dressing; the wound surface can be quickly installed and sealed through the self-adhesive negative pressure drainage dressing.

[0032] The integrated design of the present invention makes the medical dressing transparent and visual, which is convenient for medical staff to observe changes in the wound at any time; the self-adhesive negative pressure drainage dressing can quickly seal the wound (or wound surface) and connect the flushing negative pressure suction tube 5, saving medical staff installation and operation time, and facilitating the application of digital technologies for wound treatment such as VSD.

[0033] After tearing off the protective paper 2, the self-adhesive medical film 1 can be quickly pasted on the wound limb 9, and the medical staff can observe the wound 24 hours a day through the observation window 112. By setting one end of the flushing tube 4 at the bottom of the foam drainage material 3 and connecting the other end of the flushing tube 4 to the cleaning liquid bottle, the patient's wound is cleaned. By sleeve-mounting the negative pressure suction tube 5 on the flushing tube 4, the gap between the inner wall of the negative pressure suction tube 5 and the outer wall of the flushing tube 4 is utilized, so that the wound tissue fluid and the flushing liquid output by the flushing tube 4 are absorbed by the negative pressure terminal 6. By sleeve-mounting the negative pressure suction tube 5 on the flushing tube 4 and leaving a gap between the two, the sealing and stability of the negative pressure suction tube 5 and the flushing tube 4 are ensured, making the negative pressure drainage more efficient, helping to continuously and effectively drain the secretions at the wound, reducing the risk of infection, and promoting wound healing.

[0034] The mounting cavity 201 formed by the self-adhesive medical film 1 and the protective paper 2 provides a stronger seal, avoids liquid leakage, and improves comfort and safety during use. The combined use of the flushing tube 4 and the negative pressure suction tube 5 enables the dressing to not only effectively drain secretions, but also continuously flush and clean the wound, reduce the source of infection and promote the cleaning of the wound surface, and ensure the healthy healing of the wound. By combining the negative pressure suction tube 5 and the flushing tube 4 into one, the structural complexity and connection points are reduced, and the operation and maintenance are easier. Users can more easily replace and adjust, which improves the convenience and efficiency of clinical application. The self-adhesion of the self-adhesive medical film 1 can quickly seal the human body, reduce the workload of medical care, and do not affect important treatments such as rescue; the flushing structure is added to the visualized negative pressure drainage dressing through the flushing tube 4, and the humidity, temperature and pH of the wound surface can be adjusted by flushing the liquid. Specifically, the bottom is provided with a protective paper 2 composed of plastic paper such as glass or PE.

[0035] like Figure 2 and Figure 3 As shown, in an optional embodiment of the invention, 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 arranged on the first end of the tube body 51, the suction cup 52 is sealedly connected 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 arranged on the tube body 51, and the flushing tube mounting hole 401 is arranged on the flushing tube fixing member 53. The flushing tube 4 is arranged in the tube body 51 and has a certain length to pass through the inside of the suction cup 52.

[0036] The suction cup 52 of the negative pressure suction tube 5 is sealed with the drainage window 101 to ensure the sealing during the drainage process, reduce the leakage of secretions, and promote wound healing. The sealed connection between the suction cup 52, the tube body 51 and the drainage window 101 prevents liquid leakage, improves the stability and sealing of the dressing, and effectively avoids the entry of infection sources. The arrangement of the flushing tube fixing member 53 and the flushing tube mounting hole 401 simplifies the installation and replacement process of the flushing liquid bottle 7, allowing medical staff to complete the operation quickly and safely, and improving the convenience of clinical application.

[0037] Specifically, a transparent suction cup film 521 is provided on the edge of the suction cup 52 , and the transparent suction cup film 521 is used to be bonded and connected with the self-adhesive medical film 1 around the drainage window 101 .

[0038] like Figure 1 and Figure 4 As shown, in an optional embodiment of the invention, the flushing tube 4 is provided with an end cover 41, which is connected to the second end of the flushing tube 4. The end cover 41 can seal the second end port of the flushing tube 4, and the end cover 41 is located at the top end of the flushing tube 4 passing through the flushing tube fixing part 53.

[0039] The second end port of the flushing tube 4 is sealed by the end cap 41 to prevent liquid leakage, ensure the closedness of the flushing process, and reduce the risk of external contamination. The sealed connection between the end cap 41 and the flushing tube 4 effectively prevents unnecessary leakage or contamination, ensures that the wound remains clean during use, and improves the safety of treatment. The end cap 41 is located above the flushing tube fixture 53, which helps the cleaning liquid flow from the flushing liquid bottle 7 into the visual negative pressure drainage dressing. At the same time, it is convenient for medical staff to operate, simplifies the installation, use and replacement process of the dressing, and improves the efficiency and convenience of clinical treatment.

[0040] like Figure 1 and Figure 3 As shown, in an optional embodiment of the invention, a suction cup transparent film 521 is provided on the edge of the suction cup 52 , the suction cup transparent film 521 is adhesively connected to the self-adhesive medical film 1 , and the suction cup transparent film 521 is located around the drainage window 101 .

[0041] By setting the transparent film 521 of the suction cup on the edge of the suction cup 52, the drainage window 101 can be effectively sealed to prevent liquid leakage and air from entering, improve the sealing of the dressing, and reduce the risk of infection. The transparent film 521 of the suction cup is adhesively connected to the self-adhesive medical film 1 to ensure the stability and efficiency of the negative pressure drainage, and can continuously maintain the negative pressure state to promote the drainage and healing of the wound. The existence of the transparent film 521 of the suction cup can effectively block external pollutants, prevent bacteria or other harmful substances from entering the wound area, further reduce the chance of infection, and ensure the safety of the treatment process. Let the transparent film 521 of the suction cup be attached to the drainage window 101, so that medical staff can easily operate the docking of the negative pressure suction tube 5 with the self-adhesive medical film 1, and at the same time ensure the stability of the negative pressure suction tube 5 during use, reduce the possibility of displacement or falling off of the negative pressure suction tube 5, and improve the comfort and treatment effect of the patient.

[0042] like Figure 1 and Figure 3 As shown, in an optional embodiment of the invention, the self-adhesive medical patch 1 is further provided with a transparent portion 11 , and the foam drainage material 3 is further provided with a second through hole 302 , and the second through hole 302 corresponds to the transparent portion 11 .

[0043] By providing the transparent portion 11 on the self-adhesive medical film 1, medical staff can directly observe the condition of the wound, avoiding the situation where the dressing does not completely cover the wound, and helping to timely evaluate the progress of wound healing and determine whether the treatment plan needs to be adjusted. The second through hole 302 corresponds to the transparent portion 11, which can effectively ensure that the liquid flow condition and the wound surface during the negative pressure drainage process are clearly visible, helping medical staff to determine whether the drainage is smooth, find abnormalities in time and take necessary measures. The cooperation of the transparent portion 11 and the second through hole 302 makes wound care more precise, and can better control the use time and environment of the dressing, avoiding affecting the treatment effect due to untimely replacement or maintenance.

[0044] Through the transparent part 11, the condition of the dressing and the wound can be clearly seen, which reduces psychological pressure and helps to improve cooperation and comfort during the treatment process. The transparent part 11 effectively combines the functions of the foam drainage material 3, making the negative pressure drainage and wound monitoring work more coordinated, and improving the comprehensive functionality and application effect of the medical dressing. Due to the transparent part 11 of the dressing, medical staff can observe the changes in the wound in real time and understand the wound condition in time, which helps to accurately monitor and adjust the treatment process, thereby improving the safety and accuracy of nursing.

[0045] like Figure 2As shown, in an optional embodiment of the invention, the foam drainage material 3 includes a lower epithelial membrane layer 31, a liquid storage layer 32 and an upper epithelial membrane layer 33, the liquid storage layer 32 is arranged between the upper epithelial membrane layer 33 and the lower epithelial membrane layer 31, the upper epithelial membrane layer 33 is against the self-adhesive medical film 1, the lower epithelial membrane layer 31 is against the protective paper 2, and the first through hole 301 and the second through hole 302 penetrate the lower epithelial membrane layer 31, the liquid storage layer 32, and the upper epithelial membrane layer 33.

[0046] The multilayer structure (lower epithelial layer 31, liquid storage layer 32 and upper epithelial layer 33) of the foam drainage material 3 enables the dressing to absorb and store wound secretions more effectively, keep the wound dry, reduce the risk of infection, and promote wound healing. Through the configuration of different levels, the distribution and removal of liquid can be better achieved, liquid accumulation can be avoided, the stability of the environment around the wound can be ensured, and negative pressure drainage and wound management can be facilitated. The upper epithelial layer 33 is against the self-adhesive medical film 1, and the lower epithelial layer 31 is against the protective paper 2, which effectively improves the sealing of the dressing, prevents the invasion of external pollutants, and ensures that the dressing can be firmly attached to the skin and reduce shedding. The first through hole 301 and the second through hole 302 run through each layer structure, forming a smooth liquid drainage channel, helping to quickly remove wound exudate, reduce swelling and discomfort, and improve the treatment effect. The multilayer structure ensures the flexibility and comfort of the dressing, and can effectively isolate the contact between the wound and the outside world, reduce friction, avoid irritation or damage to the skin, and improve safety and comfort during use.

[0047] like Figure 4 As shown, in an optional embodiment of the invention, the first end port of the flushing tube 4 is an inclined port, the first end port of the flushing tube 4 is located below the second through hole 302, and the first end port of the flushing tube 4 is oriented inclined upward.

[0048] By setting the first end port of the irrigation tube 4 as an inclined port and tilting it upward, it is helpful for the liquid to flow into the wound area during the irrigation process and then flow to the negative pressure suction tube 5 at the upper drainage window 101, which can ensure that the liquid forms an effective irrigation flow on the wound surface, remove foreign matter and bacteria in the wound, and reduce the risk of infection. The position and direction of the inclined port can better guide the irrigation liquid to flow to the target area, avoid excessive splashing or uneven distribution of the liquid due to linear impact, and ensure that the irrigation liquid around the wound can contact the wound surface more concentratedly and effectively. By optimizing the irrigation flow direction, it is helpful to clean the wound surface and deep clean the wound, reduce the accumulation of secretions and bacteria on the wound surface, help promote wound healing, and reduce the occurrence of complications. The design of the inclined port makes the irrigation liquid more smooth and clear in direction in actual operation, avoids the situation of liquid overflow or waste during use, and improves the comfort and effectiveness of the dressing during use. The inclined port helps to reduce the pain or discomfort caused by the direct impact of the liquid on the wound surface, and provides a more comfortable treatment experience through a gentler liquid flow method, which is particularly suitable for more sensitive wound areas.

[0049] 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 .

[0050] In an optional embodiment of the invention, the foam drainage material 3 is a sheet-shaped compressible foam drainage material. After absorbing liquid, the sheet-shaped foam drainage material 3 expands into a columnar shape to support the wound (or wound surface) and the volume of the local closed space becomes larger, so that when used, a micro-negative pressure is generated in the installation cavity 201 when the wound (or wound surface) is closed. After removing the protective paper, the compressible foam drainage material is pasted on the normal skin around the wound surface. After absorbing liquid, the compressible foam drainage material expands to increase the volume of the installation cavity, thereby generating a micro-negative pressure for wound treatment.

[0051] The sheet-like compressible foam material has a strong liquid absorption performance and can effectively absorb the liquid secreted by the wound. After absorbing the liquid, the foam material expands into a column, further increasing its liquid absorption capacity, ensuring that the wound area remains dry, and helping to reduce the risk of infection. After the foam drainage material 3 expands into a column, it can generate a micro-negative pressure in the installation cavity 201. This micro-negative pressure helps to accelerate the wound healing process, improve local blood circulation, promote cell regeneration and repair, especially in trauma repair and postoperative wound treatment, it can accelerate recovery. The generation of micro-negative pressure can effectively reduce the swelling and inflammatory response of the wound, relieve the patient's pain and discomfort, and improve the patient's comfort and compliance during treatment.

[0052] The liquid absorption function of the foam material helps to keep the wound clean, absorb excess exudate and pus, prevent them from being retained on the wound surface, reduce the chance of bacterial growth, and reduce the chance of infection. The columnar structure formed by the foam material after the liquid absorption and expansion has good stability, is not easy to be damaged or invalid, and can effectively maintain micro-negative pressure for a long time, ensuring that the wound is continuously protected and supported during the treatment process. The sheet-like compressible foam drainage material 3 is suitable for various types of wounds, including surgical wounds, trauma, burns, etc., especially for trauma treatment that requires long-term liquid absorption and micro-negative pressure, it can provide effective solutions and improve the treatment effect. The continuous effect of micro-negative pressure can reduce the frequent intervention and dressing changes of the wound, thereby reducing the workload of nursing staff, while avoiding secondary injuries caused by frequent dressing changes and optimizing the nursing process. Specifically, the foam material is a polyvinyl alcohol foam sponge or a polyurethane foam sponge with a three-dimensional interconnected network structure; specifically, if the foam drainage material 3 is made of polyvinyl alcohol foam drainage material, the foam drainage material 3 is provided with a multi-layer structure, such as a lower epithelial membrane layer 31, a liquid storage layer 32 and an upper epithelial membrane layer 33; if the foam drainage material 3 is made of polyurethane material, the foam drainage material is a single-piece molded structure.

[0053] like Figure 2 and Figure 4 As shown, in an optional embodiment of the invention, the observation window 112 is provided with a transparent film 111 , the observation window 112 is covered by the transparent film 111 above, the observation window 112 corresponds to the second through hole 302 , and the transparent film 111 is pasted on the observation window 112 .

[0054] By providing a transparent film 111 and an observation window 112 on the self-adhesive medical film 1, medical staff and patients can easily observe the healing of the wound surface, reduce the frequency of operation when changing the dressing each time, facilitate timely monitoring of the recovery progress of the wound, and help evaluate and treat the wound state. Through the observation window 112, the doctor can more accurately understand the specific conditions of the wound, such as whether there are problems such as infection and secretions, so as to carry out treatment and care more targeted and improve the treatment effect. While the transparent film 111 can protect the wound, the observation window 112 provides visibility of the wound, avoids frequent removal of the dressing, thereby reducing the risk of secondary injury or infection caused by changing the dressing, and improves the patient's comfort and nursing efficiency. The patient can directly see the recovery of the wound through the transparent observation window 112, which helps to reduce the anxiety caused by the unknown wound, increase the patient's trust and confidence in the treatment process, and improve the overall treatment experience.

[0055] By removing the adhesively connected transparent film 111 and setting a second flushing tube 4 at the second through hole 302 through the observation window 112, the flushing efficiency is enhanced. In addition to the functions of protecting wounds, waterproofing, and preventing bacteria, the transparent film 111 can also make the function of the entire dressing more comprehensive through the observation window 112, providing both physical protection and meeting the needs of observing and evaluating wounds. The combination of the transparent film 111 and the observation window 112 makes wound observation easier and faster, and is particularly suitable for situations where frequent wound inspections are required, such as postoperative, burns, trauma, and other types of injuries, which improves the efficiency and convenience of nursing.

[0056] like Figure 5 and Figure 6 As shown, in an optional embodiment of the invention, a visualized negative pressure drainage dressing and a flushing and suction device include a negative pressure terminal 6, a flushing liquid bottle 7 and the above-mentioned visualized 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 flushing liquid bottle 7 is connected to the second end of the flushing tube 4.

[0057] After wound debridement and hemostasis, select a visual negative pressure drainage dressing of appropriate size, tear off the protective paper 2 and paste it to cover and seal the wound; the wound exudate slowly seeps out, the compressible polyvinyl alcohol foam drainage material 3 absorbs the liquid and expands, and the foam drainage material 3 body "cupping" similar principle produces micro-negative pressure, forming a pressure difference between the self-adhesive medical film 1 and the wound, achieving a micro-negative pressure treatment effect. If the wound exudate is more or the necrosis infection is more serious, a large negative pressure suction or flushing treatment is required, and a flushing tube 4 and a negative pressure suction tube 5 are installed on the drainage window 101 of the self-adhesive medical film 1. The negative pressure suction tube 5 is sleeved on the flushing tube 4, trimmed to a suitable length, and inserted between the wound and the compressible polyvinyl alcohol foam drainage material 3 from 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 flushing liquid bottle 7 is connected to the second end of the flushing tube 4.

[0058] Specifically, the negative pressure suction device is provided with a near-infrared red light therapy pad 8, and the near-infrared red light therapy pad 8 is connected to the humidity, temperature and pressure control equipment to personalize the treatment parameters. For example: the temperature of the wound can be reduced by injecting room temperature saline from the flushing tube 4. The temperature of the wound can be set by the device to increase the temperature of the near-infrared red light therapy pad 8. According to the pH test paper test and bacterial culture results of the wound exudate, if the acid-loving bacterial colony is infected, alkaline saline or drugs can be dripped in. Replace the visual negative pressure drainage dressing once every 5-7 days. Observe the changes in the wound through the observation window 112 of the transparent part 11 at irregular intervals every day, and treat the wound in time.

[0059] The embodiment of the present invention discloses a visualized negative pressure drainage dressing and a flushing and suction device, comprising the following steps: after debridement and hemostasis, selecting a visualized medical dressing of corresponding size to seal the wound according to the size of the wound; the visualized medical dressing expands after absorbing wound exudate, so that the volume of the sealed wound treatment cavity at the installation cavity 201 position increases and the air pressure decreases, thereby generating a micro-negative pressure for wound treatment; if the visualized medical dressing cannot completely absorb the wound exudate, a negative pressure suction tube 5 and a flushing tube 4 are installed on the drainage window 101 on the visualized medical dressing, and the first end of the flushing tube 4 is arranged between the wound and the visualized medical dressing through the observation window 112; after the control parameters of the flushing and suction device are set, the near-infrared red light treatment pad 8 of the flushing and suction device is covered on the visualized medical dressing.

[0060] By using visual medical dressings to absorb wound exudate and then swell, a micro-negative pressure is generated, thereby promoting wound healing, helping to reduce the accumulation of fluid around the wound, avoiding infection and tissue necrosis caused by excessive exudate, and promoting tissue regeneration and repair. Through the visual structure of the visual negative pressure drainage dressing, the observation window provides the possibility of viewing the wound condition in real time. Doctors can easily monitor the absorption of wound exudate, the wound healing process, and the pathological changes around the wound, helping to adjust the treatment plan in time. If the visual medical dressing fails to completely absorb the exudate, the setting of the negative pressure suction tube and the flushing tube can effectively help drain and remove the wound exudate, prevent the accumulation of exudate, thereby keeping the wound clean and reducing the risk of infection. At the same time, the flushing tube can clean the wound in time, further enhancing the therapeutic effect of negative pressure drainage.

[0061] By using a near-infrared red light therapy pad in treatment, combined with negative pressure therapy, blood circulation can be promoted, oxygen and nutrient supply to tissues can be improved, and wounds can be helped to heal faster. The therapeutic effect of near-infrared red light can further accelerate cell repair and angiogenesis, improving the speed and quality of wound healing. Compared with traditional negative pressure drainage devices, the present invention takes into account the convenience and intuitiveness of operation. By setting up drainage windows and observation windows, doctors can directly observe and manage the wound treatment process without frequently changing dressings, saving operation time and improving treatment efficiency. Since it can effectively control wound exudate and reduce local effusion, it can effectively prevent common complications such as wound infection and tissue necrosis. By precisely adjusting the negative pressure and flushing functions, the wound environment is better controlled, further reducing the risks during the treatment process.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A visualized negative pressure drainage dressing and flushing and suction device, characterized in that: include: A visualized medical dressing, comprising a self-adhesive medical film and a foam drainage material of an integrated structure, and provided with a drainage window and an observation window; A self-adhesive medical film, wherein the self-adhesive medical film is provided with the drainage window and the observation window, and a transparent film for sealing is provided above the observation window; Protective paper, the self-adhesive medical film and the protective paper enclose a mounting cavity for the foam drainage material, and after tearing off the protective paper, the self-adhesive medical film can be self-adhesive on human skin; A foam drainage material, the foam drainage material is arranged in the installation cavity, the foam drainage material is provided with a first through hole and a second through hole for installing the self-adhesive medical film in a consistent manner, the first through hole corresponds to the drainage window, and the second through hole corresponds to the observation window; A flushing tube, wherein the first end of the flushing tube can be passed through the first through hole and then disposed at the bottom of the foam drainage material when in use; A negative pressure suction tube, wherein the first end of the negative pressure suction tube is connected to the drainage window when in use, 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, and 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 visualized negative pressure drainage dressing and irrigation and 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 piece, the suction cup is arranged on the first end of the tube body, the suction cup is sealedly connected to the drainage window, the tube body is connected to the drainage window through the suction cup, the flushing tube fixing piece is arranged on the tube body, the flushing tube mounting hole is arranged on the flushing tube fixing piece, and the first end of the flushing tube passes through the inside of the suction cup and is arranged at the bottom of the foam drainage material.

3. The visualized negative pressure drainage dressing and flushing and suction device according to claim 2, characterized in that: The flushing pipe is provided with an end cover, which is connected to the second end of the flushing pipe and can seal the second end port of the flushing pipe. The end cover is located above the flushing pipe fixing member.

4. The visualized negative pressure drainage dressing and irrigation and suction device according to claim 2, characterized in that: A transparent suction cup film is provided on the edge of the suction cup, the transparent suction cup film is adhesively connected to the self-adhesive medical film, and the transparent suction cup film is located around the drainage window.

5. The visualized negative pressure drainage dressing and irrigation and suction device according to claim 2, characterized in that: The self-adhesive medical film is also provided with a transparent portion, and the transparent portion is located in the observation window.

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

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

8. The visualized negative pressure drainage dressing and irrigation and 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 pasted on the normal skin around the wound. The compressible foam absorbent drainage material expands after absorbing liquid, thereby increasing the volume of the installation cavity, thereby generating a micro-negative pressure for wound treatment.

9. A method for using a visualized negative pressure drainage dressing and a flushing and suction device, using the device according to any one of claims 1 to 8, characterized in that: The following steps are involved: After debridement and hemostasis, the visualized medical dressing of corresponding size is selected to seal the wound according to the size of the wound; The visualized medical dressing expands after absorbing wound exudate, so that the volume of the sealed wound treatment cavity at the installation cavity position increases and the air pressure decreases, thereby generating a slight negative pressure for wound treatment; If the visualized medical dressing cannot completely absorb the wound exudate, the negative pressure suction tube and the flushing tube are installed on the drainage window on the visualized medical dressing, and the first end of the flushing tube is arranged between the wound and the visualized medical dressing through the observation window; After the control parameters of the irrigation and suction device are set, the near-infrared red light treatment pad of the irrigation and suction device is covered on the visualized medical dressing.

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