Wound cleansing device

Abstract

This invention relates to the field of biomedical engineering technology, and in particular to a medical wound cleaning device for dressing changes. The wound cleaning device includes a trolley, a sealed box, a guide tube, a cleaning mechanism, and a fluid extraction mechanism. The sealed box includes a base, a lid, and a support assembly, which together form a closed space. The support assembly is installed within the closed space and has a suspended position. The guide tube includes a manifold and a lower spray pipe and an upper spray pipe connected to the manifold. The lower spray pipe has a lower nozzle, and the upper spray pipe has an upper nozzle, both facing the suspended position. The cleaning mechanism is connected to the manifold, and the fluid extraction mechanism is used to extract the cleaning fluid from the closed space. This wound cleaning device utilizes a sealed box to enclose the area to be dressed within a closed space, and the fluid extraction mechanism extracts the cleaning fluid from the sealed box, achieving the goal of effectively recovering contaminated cleaning fluid while performing dressing changes for bedridden patients with limited mobility.

Description

Technical Field

[0001] This invention relates to the field of biomedical engineering technology, and in particular to a medical-based wound cleaning device for dressing changes. Background Technology

[0002] Most hospitals now have specialized dressing change instruments in their surgical departments. These instruments are used to clean patients' wounds, change dressings, screen for infections, and verify the progress of wound healing and the effectiveness of infection control.

[0003] To reduce pain during dressing changes, a cleaning solution is typically used to dissolve blood clots on the gauze, allowing the gauze to separate from the wound. Since this cleaning solution is infectious waste, it must be poured into a dedicated medical waste container while dissolving the blood clots. Figure 1 As shown, this is a wound cleaning cart used for dressing changes in the department. When in use, the patient's bandage is supported by the support frame on the cleaning cart. After the bandage is untied, the cleaning solution is poured onto the gauze at the bandage. The cleaning solution soaks and melts the blood clots on the gauze, making it easier for the gauze to separate from the wound and avoiding damage to the wound surface during separation. At the same time, the cleaning solution that has soaked the blood clots will fall into the waste liquid bag through the funnel under the support frame, so as to realize the recycling of contaminated cleaning solution.

[0004] However, for hospitalized patients, especially those who are bedridden and have limited mobility, it is difficult to place the wound on the support frame of the wound cleaning cart. In order to accommodate bedridden patients with limited mobility, the invention patent with patent number CN202111657529.7 discloses a contamination-proof dressing change device for nursing departments. It includes a cart, a nebulizer installed on the cart, a first base connected to the nebulizer through a pipeline, and a liquid collection base connected to the first base. In use, the liquid collection base is laid under the patient's wound limb. The nebulizer provides atomized drug vapor to the nebulizing nozzle on the first base. The drug vapor is used to atomize and apply medication to the bandage at the wound site. The drug liquid and pus generated during the medication application are collected by the liquid collection base and the liquid is removed by the cooperation of a suction tube and a suction pump.

[0005] However, while placing the liquid-collecting substrate under the patient's wound and using steam to atomize the bandage at the wound site can enable dressing changes for bedridden patients with limited mobility, the efficiency of steam-soaking the gauze is low, requiring a significant amount of time for dressing changes. Furthermore, the atomized medication easily disperses into the air, causing secondary air pollution and making it difficult to effectively recover the contaminated cleaning solution. This presents a technical challenge in wound cleaning devices that simultaneously meet the needs of dressing changes for bedridden patients with limited mobility while effectively recovering the contaminated cleaning solution. Summary of the Invention

[0006] The purpose of this application is to overcome the shortcomings of the prior art and provide a wound cleaning device that can effectively recover contaminated cleaning solution while performing dressing changes for bedridden patients with limited mobility.

[0007] A wound cleaning device includes a trolley, a cleaning mechanism, and a fluid extraction mechanism. The trolley carries the cleaning mechanism and the fluid extraction mechanism. The cleaning mechanism outputs a cleaning medium, and the fluid extraction mechanism collects contaminated waste fluid generated during dressing changes. The wound cleaning device also includes a sealed box and a guide tube. The sealed box includes a base, a lid, and a support assembly. The base and lid are rotatably connected and form a closed space with a wearing opening connected to the closed space. The wearing opening is for a patient's limb to be inserted. The support assembly can... The support assembly is installed and disassembled within the enclosed space. It has a suspended position for exposing the patient's dressing area. The guide tube includes a manifold, a lower spray tube, and an upper spray tube. The input end of the manifold is connected to the output end of the cleaning mechanism. The output end of the manifold is connected to the lower spray tube and the upper spray tube respectively. The lower spray tube is installed inside the base box and has a lower spray nozzle facing the suspended position. The upper spray tube is installed inside the box cover and has an upper spray nozzle facing the suspended position. The liquid aspiration mechanism is connected to the enclosed space.

[0008] In one embodiment, the supporting component includes a base frame and a portal frame, the base frame being embedded in the base box, and the number of portal frames being multiple, with the suspended space formed by the interval between adjacent portal frames.

[0009] In one embodiment, the number of the gantry frames is three, and the three gantry frames are disposed between the two wearing openings.

[0010] In one embodiment, the gantry frame includes two uprights and liquid-passing strips. The two uprights are spaced apart. The two ends of the liquid-passing strips are connected to each of the uprights and spaced apart from the base frame.

[0011] In one embodiment, the liquid-passing strip is a fabric strip.

[0012] In one embodiment, the height of the liquid-passing strip is set to correspond to the position of the wearing opening.

[0013] In one embodiment, the base frame includes a filter plate and support legs. The filter plate divides the enclosed space into a cleaning chamber and a filtrate chamber, and has a filter hole that connects the cleaning chamber and the filtrate chamber. The cleaning chamber is connected to the wearing port, the filtrate chamber is connected to the liquid extraction mechanism, and the support legs are connected to the filter plate and disposed in the filtrate chamber.

[0014] In one embodiment, the lower spray pipe is disposed within the filtrate chamber, and the filter plate is provided with a clearance corresponding to the position of the lower spray nozzle.

[0015] In one embodiment, the lower spray pipe includes a lower guide pipe, a lower ring pipe, and a lower nozzle. The lower guide pipe is connected to the manifold, the lower ring pipe is connected to the lower guide pipe and is arranged around the inner wall of the bottom box, the lower nozzle is connected to the lower ring pipe, and there are multiple lower nozzles. Each lower nozzle is distributed at intervals along the lower ring pipe, each lower nozzle has a lower spray port and is arranged facing the suspended position, and the clearance opening of the filter plate is arranged corresponding to the lower nozzle.

[0016] In one embodiment, the upper spray pipe includes an upper guide pipe, an upper ring pipe, and an upper nozzle. The upper guide pipe is connected to the manifold, the upper ring pipe is connected to the upper guide pipe, and is arranged around the inner wall of the cover. The upper nozzle is connected to the upper ring pipe, and there are multiple upper nozzles. Each upper nozzle is distributed at intervals along the upper ring pipe, and each upper nozzle has an upper spray port and is arranged facing the suspended position.

[0017] In one embodiment, the support assembly is detachably connected to the base box.

[0018] In one embodiment, the number of supporting components is multiple.

[0019] In one embodiment, the bottom box has a lower cavity and a lower notch, the lower cavity communicating with the lower notch and used to install the support component, the lower notch and the box cover forming the wearing opening, and the number of the lower notches can be two, and they are located on opposite sides of the bottom box.

[0020] In one embodiment, the lid has an upper cavity and an upper notch, the upper cavity is connected to the upper notch, the upper notch is correspondingly disposed to the lower notch of the bottom box, and together with the lower notch, they form the wearing opening.

[0021] In one embodiment, the sealed box also includes a handle that connects to the lid. In one embodiment, the sealed box further includes a lower sealing strip and an upper sealing strip. The lower sealing strip covers the edge of the bottom box, and the upper sealing strip covers the edge of the lid. When the bottom box and the lid are closed, a portion of the lower sealing strip and a portion of the upper sealing strip are in sealing contact.

[0022] In one embodiment, the sealed box further includes a sealing sleeve, which includes a sealing ring and a shrink film connecting the sealing ring. The shrink film has an elastic opening for a patient's limb to pass through. The sealing ring is sealed to the bottom box and the lid.

[0023] In one embodiment, the cleaning mechanism includes a spraying mechanism and a heating mechanism, both of which are connected to the manifold. The spraying mechanism is used to provide cleaning fluid to the manifold, and the heating mechanism is used to deliver warm air to the manifold.

[0024] In one embodiment, the manifold includes an input section, a confluence section, and an output end. There are two input sections, one of which is connected to the liquid spraying mechanism and the other is connected to the warm air mechanism. The confluence section connects each of the input sections. There are two output ends, one of which is connected to the lower spray pipe and the other is connected to the upper spray pipe.

[0025] In one embodiment, the manifold further includes two check valves, each of which is disposed between the input section and the manifold.

[0026] In one embodiment, the one-way valve includes a valve tube, a movable plug, and an elastic element. The valve tube has an inlet, a valve cavity, and an outlet. The inlet communicates with the input section, the valve cavity communicates with the inlet, and the outlet communicates with the valve cavity and is correspondingly communicated with the confluence section. The movable plug is movably disposed within the valve cavity and has a circulation groove communicating with the valve cavity, a flow port communicating with the circulation groove, and an outlet cavity communicating with the flow port. The circulation groove is disposed on the side of the movable plug near the inlet, and the outlet cavity is disposed on the side of the movable plug near the outlet. The elastic element drives the movable plug to close the inlet.

[0027] In one embodiment, the cover includes a box body and a water-blocking block. The box body is provided with a retention channel that connects to the enclosed space. The water-blocking block is disposed above the suspended position. The side wall of the water-blocking block is provided with an air inlet that connects the retention channel and the enclosed space.

[0028] In one embodiment, the water-blocking block has a water-guiding surface for guiding the cleaning fluid in the retention channel to drain out. The water-guiding surface is located at the air inlet and is inclined towards the direction of the enclosed space.

[0029] In one embodiment, the spraying mechanism includes a storage tank, a transfer pump, a heating tank, and a delivery pump. The storage tank is used to store cleaning fluid. The transfer pump connects the storage tank and the heating tank and is used to pump the cleaning fluid from the storage tank to the heating tank. The heating tank is used to heat the cleaning fluid. The delivery pump is used to extract the cleaning fluid from the heating tank and supply it to the guide pipeline.

[0030] In one embodiment, the volume of the heating box is smaller than the volume of the liquid storage tank.

[0031] In one embodiment, the heating box includes a box body and a heating tube. The box body is installed in a trolley, and part of the heating tube is disposed in the box body. The trolley is provided with a first receiving slot for loading the liquid storage tank, and the liquid storage tank is detachably connected to the first receiving slot.

[0032] In one embodiment, the cover further includes a blocking block that covers the stagnation channel, and the side wall of the blocking block has an air outlet communicating with the stagnation channel.

[0033] In one embodiment, the box body has a water inlet surface located at the air outlet and inclined toward the direction of the stagnation channel.

[0034] In one embodiment, the liquid extraction mechanism includes a liquid extraction tank, a waste liquid bag, a liquid extraction pump, and a liquid extraction pipe. The liquid extraction tank is used to hold the waste liquid bag. The liquid extraction pump is connected in series with the liquid extraction pipe. The inlet end of the liquid extraction pipe is connected to the enclosed space, and the outlet end of the liquid extraction pipe is connected to the waste liquid bag.

[0035] The beneficial effects of the wound cleaning device of this invention are as follows: A sealed box with a bottom and lid forms a closed space and a dressing opening for the injured area. A manifold in the guide pipe receives the cleaning fluid or warm air provided by the cleaning mechanism. The cleaning fluid or warm air is sprayed onto the suspended area through lower and upper nozzles located on opposite sides of the suspended position. The bottom and lid, working together, effectively enclose the area to be dressed within the sealed space, thus preventing the sprayed cleaning fluid from escaping. A suction mechanism extracts the cleaning fluid from the sealed space, effectively recovering the contaminated cleaning fluid and achieving the desired results. The system aims to effectively recover contaminated cleaning solution while performing dressing changes for bedridden patients with limited mobility. Furthermore, by placing the bandaged area in an unsupported position, the cleaning solution is sprayed onto this unsupported area using lower and upper nozzles located on opposite sides. This allows the cleaning solution to quickly and effectively soak the bandage in the unsupported position, separating the gauze from the wound and rapidly dissolving dried medication or bloodstains. Simultaneously, the warm air provided by the cleaning unit quickly dries the area of ​​the wound contaminated with the cleaning solution, accelerating wound drying and improving dressing change efficiency while reducing dressing change time. Attached Figure Description

[0036] Figure 1 A photograph of a cleaning cart used for changing dressings in this traditional technique; Figure 2 This is a schematic diagram of the wound cleaning device described in this invention; Figure 3 for Figure 1 A partial structural exploded view of the wound cleaning device described above; Figure 4 for Figure 1 A schematic diagram of the sealed box of the wound cleaning device; Figure 5 for Figure 4 A cross-sectional structural diagram of the sealed box; Figure 6 for Figure 5 Enlarged schematic diagram of part A of the sealed box; Figure 7 for Figure 5 A schematic diagram showing the location and structure of the guide pipes and support components in the sealed box; Figure 8 for Figure 5 A schematic diagram of the combined state of the bottom box and the supporting components in the sealed box; Figure 9 for Figure 8 A structural schematic diagram of the supporting component from one perspective; Figure 10 for Figure 9Another structural schematic diagram of the supporting component; Figure 11 for Figure 4 An exploded view of the bottom box, lower sealing strip, and lower nozzle; Figure 12 for Figure 4 An exploded view of the box cover, upper sealing strip, and upper spray pipe; Figure 13 for Figure 7 A schematic diagram of the cross-sectional structure of the described guide pipe; Figure 14 for Figure 13 A cross-sectional schematic diagram of the one-way valve in the aforementioned guide pipeline; Figure 15 for Figure 4 A schematic diagram of the sealing sleeve of the sealed box.

[0037] The meanings of the numbers in the attached diagram are as follows: 100. Wound cleaning device; 10. Trolley; 11. Casters; 12. Frame; 121. First receiving slot; 122. Second receiving slot; 123. Receiving cavity; 13. Push rod; 20. Sealed box; 201. Enclosed space; 202. Wearing port; 203. Cleaning chamber; 204. Filtration chamber; 205. Lower sealing strip; 206. Upper sealing strip; 21. Base box; 211. Lower cavity; 212. Lower notch; 213. Bottom shell; 214. First protrusion; 22. Box lid; 221. Upper cavity; 222. Upper notch; 223. Second protrusion; 23. Support assembly; 231. Suspension position; 232. Base frame; 233. 234. Portal frame; 235. Liquid flow strip; 236. Filter plate; 237. Support leg; 238. Clearance opening; 24. Handle; 25. Box body; 251. Retention channel; 252. Water inlet surface; 26. Water baffle block; 261. Air inlet; 262. Water guide surface; 27. Blocking block; 271. Air outlet; 28. Sealing sleeve; 281. Sealing ring; 282. Shrink membrane; 283. Elastic opening; 284. Snap ring; 285. Sealing ring; 30. Guide pipe; 31. Manifold; 311. Input section; 312. Manifold section; 313. Output end; 32. Lower nozzle; 321. Lower nozzle; 322. Lower guide pipe; 323. Lower ring pipe; 324. Lower nozzle; 33. Upper nozzle; 331. Upper nozzle; 332. Upper guide pipe; 333. Upper ring pipe; 334. Upper nozzle; 34. One-way valve; 341. Valve pipe; 342. Movable plug; 343. Elastic element; 344. Inlet; 345. Valve chamber; 346. Outlet; 347. Circulation groove; 348. Flow port; 349. Outlet chamber; 40. Cleaning mechanism; 41. Spraying mechanism; 411. Storage tank; 412. Liquid pump; 413. Heating box; 414. Infusion pump; 415. Box body; 416. Heating tube; 42. Warm air mechanism; 50. Liquid extraction mechanism; 51. Liquid extraction tank; 52. Liquid extraction pump; 53. Liquid extraction pipe. Detailed Implementation

[0038] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0044] like Figure 2 As shown, the wound cleaning device 100 of the present invention is used to moisten the gauze at the wound site of a bedridden patient with limited mobility during dressing changes, so as to reduce the patient's pain during the dressing change process.

[0045] like Figures 2 to 3 As shown, the wound cleaning device 100 includes: a trolley 10, a sealed box 20, a guide tube 30, a cleaning mechanism 40, and a fluid extraction mechanism 50. The trolley 10 is used to place the sealed box 20, the cleaning mechanism 40, and the fluid extraction mechanism 50 to improve the transportation convenience of each component. The sealed box 20 is connected to the cleaning mechanism 40 and the fluid extraction mechanism 50 through the guide tube 30. The sealed box 20 can be placed on a hospital bed and wrap the dressing area on the limb of a bedridden patient. The guide tube 30 is used to receive the cleaning solution or warm air delivered by the cleaning mechanism 40, so that the cleaning solution or warm air is sprayed on the dressing area on the patient's limb within the sealed box 20. The cleaning solution can fully penetrate the bandage and soak the gauze, softening and dissolving the dried medicine or bloodstains on the bandage and gauze. The warm air is used to quickly dry the area contaminated with the cleaning solution, accelerating wound drying. The fluid extraction mechanism 50 is used to extract the contaminated cleaning solution from the sealed box 20.

[0046] In this embodiment, the cleaning solution is a medical-grade chlorine-containing cleaning solution, namely a cleaning solution containing chlorine-containing compounds such as sodium hypochlorite and sodium dichloroisocyanurate, as well as stabilizers and surfactants. A sealed box 20, which can be placed on a hospital bed, is used to seal and secure the patient's wound area to be dressed. The cleaning solution or warm air delivered by the cleaning mechanism 40 is connected to a guide pipe 30. The cleaning solution or warm air is sprayed onto the patient's wound inside the sealed box 20. Combined with a suction mechanism 50 that continuously extracts contaminated cleaning solution from the sealed box 20, this structure effectively seals the wound area to be dressed within the enclosed space 201 of the sealed box 20, thereby preventing the spray from entering the sealed box 20. The cleaning fluid overflows from the enclosed space 201; the contaminated cleaning fluid in the sealed box 20 is extracted by the fluid extraction mechanism 50, which can effectively recover the contaminated cleaning fluid. This achieves the effect of effectively recovering the contaminated cleaning fluid while meeting the dressing change needs of bedridden patients with limited mobility. At the same time, the cleaning mechanism 40 can deliver warm air. Since the fluid extraction mechanism 50 continuously extracts the contaminated cleaning fluid in the sealed box 20, it can effectively reduce the air humidity in the sealed box 20 and improve the drying efficiency in the sealed box 20. This allows the wound contaminated with cleaning fluid to dry quickly, thereby accelerating wound drying and improving dressing change efficiency.

[0047] The following text, combined with Figures 2 to 14 The wound cleaning device 100 described above will be further explained.

[0048] like Figures 2 to 3 As shown, the trolley 10 includes casters 11, a frame 12, and a push rod 13. The casters 11 are installed at the bottom of the frame 12 to improve the mobility of the frame 12. The frame 12 is used to place the sealed box 20 and to install the cleaning mechanism 40 and the liquid extraction mechanism 50. The push rod 13 is installed on the frame 12 to control the direction of movement of the trolley 10.

[0049] The frame 12 has a placement surface for placing the sealed box 20, and the trolley 10 also includes a fence connecting the placement surface, which can effectively prevent the sealed box 20 from detaching from the placement surface.

[0050] like Figure 4 , Figure 5 and Figure 7 As shown, the sealed box 20 includes a base box 21, a lid 22, and a support assembly 23. The base box 21 is rotatably connected to the lid 22 and together with the lid 22, they form a closed space 201 and a wearing opening 202. The closed space 201 is used to prevent the cleaning fluid from overflowing. The wearing opening 202 is connected to the closed space 201 and is used for hands or feet to enter the closed space 201. The support assembly 23 is installed in the closed space 201 and forms a suspended position 231. The suspended position 231 is used to expose the area to be dressed, so that the guide tube 30 can spray the cleaning fluid onto the bandage and gauze, or spray warm air onto the wound.

[0051] Among them, such as Figure 8 and Figure 11 As shown, the bottom box 21 is rectangular and has a lower cavity 211 and a lower notch 212. The lower cavity 211 and the lower notch 212 are connected and used to install the support component 23. The lower notch 212 and the box cover 22 together form a dressing opening 202. There are two lower notches 212, which are located on opposite sides of the bottom box 21, so that the patient's hands or feet can pass through the bottom box 21 and place the dressing area to be changed on the support component 23.

[0052] like Figure 4 As shown, the bottom box 21 is connected to the lid 22 by a hinge so that the lid 22 can rotate relative to the bottom box 21; the bottom box 21 is also provided with a pull buckle so that the bottom box 21 and the lid 22 can be fastened together, thereby ensuring the airtightness of the enclosed space 201 after the bottom box 21 and the lid 22 are closed.

[0053] Furthermore, such as Figure 4 As shown, the sealed box 20 also includes a handle 24, which is connected to the lid 22. The handle 24 is used to improve the transport convenience of the sealed box 20. When in use, the bottom box 21 and the lid 22 are fastened together by the pull buckle, and the handle 24 is pulled to place the sealed box 20 on the hospital bed, thereby improving the transport convenience of the sealed box 20.

[0054] Furthermore, both the bottom box 21 and the lid 22 are made of transparent polyethylene terephthalate (PET) material, which allows medical staff to observe the immersion status of the dressing site. At the same time, PET is lightweight and has good mechanical properties, transparency, and chemical stability. It also has good moisture barrier properties, which can effectively block the cleaning solution and prevent the cleaning solution from contaminating the bed during the dressing change, thereby improving the patient's dressing change experience.

[0055] It is understandable that, such as Figure 12 As shown, the shape of the lid 22 corresponds to that of the bottom box 21, and it has an upper cavity 221 and an upper notch 222. The upper cavity 221 is connected to the upper notch 222. The upper notch 222 corresponds to the lower notch 212 of the bottom box 21, and together with the lower notch 212, they form a wearing opening 202.

[0056] To improve drying efficiency while preventing cleaning fluid from overflowing from the sealed box 20, such as Figures 5 to 6As shown, the cover 22 includes a box body 25 and a water-blocking block 26. The box body 25 has a stagnation channel 251 connecting the enclosed space 201. The water-blocking block 26 is positioned above the suspended position 231. The side wall of the water-blocking block 26 has an air inlet 261 connecting the stagnation channel 251 and the enclosed space 201. This structure, with the water-blocking block 26 positioned above the suspended position 231 and the air inlet 261 on the side wall of the water-blocking block 26 connecting the stagnation channel 251 and the enclosed space 201, facilitates the flow of warm air from the enclosed space 201 through the air inlet 261 and out through the stagnation channel 251, thereby accelerating the gas flow within the enclosed space 201 and improving the air circulation within the enclosed space 201. The cleaning fluid vaporized inside the 01 is quickly discharged to improve the drying efficiency. At the same time, the water baffle 26 can effectively prevent the cleaning fluid splashed at the suspended position 231 from directly entering the retention channel 251. Even if some cleaning fluid enters the retention channel 251 through the air inlet 261 on the side wall of the water baffle 26, it will fall back to the air inlet 261 in the retention channel 251 and finally flow back to the closed space 201 from the air inlet 261. The water baffle 26 is provided with a water guiding surface 262 for guiding the cleaning fluid in the retention channel 251 back. The water guiding surface 262 is located at the air inlet 261 and is inclined towards the closed space 201.

[0057] To ensure the hygiene of the enclosed space 201 and improve the cleaning effect, such as Figure 6 As shown, the cover 22 also includes a blocking block 27, which covers the end of the retention channel 251 and has an air outlet 271 connecting to the retention channel 251. The air outlet 271 is located on the side wall of the blocking block 27. By using the structure of the blocking block 27 covering the end of the retention channel 251 and having an air outlet 271 connecting to the retention channel 251, external dust or impurities can be effectively prevented from entering the enclosed space 201 through the retention channel 251 and the air inlet 261, ensuring the enclosure. The cleanliness of the space 201 is improved to enhance the cleaning effect. At the same time, by placing the air outlet 271 on the side wall of the baffle block 27, the baffle block 27 can effectively prevent the cleaning liquid from overflowing from the end of the retention channel 251. The box body 25 is provided with a water guiding surface 252, which is located at the air outlet 271 and is inclined towards the retention channel 251 to guide the cleaning liquid at the air outlet 271 back into the retention channel 251, and finally back into the enclosed space 201.

[0058] To ensure the area to be dressed is suspended in the air, such as... Figures 8 to 10As shown, the support component 23 includes a base frame 232 and a portal frame 233. The base frame 232 is embedded in the lower cavity 211 of the base box 21. There are multiple portal frames 233, and the adjacent portal frames 233 are spaced apart to form a suspended position 231. The patient's limb with wound is supported by each portal frame 233, so that the dressing area is in the suspended position 231 between the adjacent portal frames 233. This allows the dressing area to be suspended, and at the same time, the lower nozzle 321 and upper nozzle 331 on both sides of the suspended position 231 can spray the cleaning fluid onto the dressing area at the suspended position 231. This allows the dressing area at the suspended position 231 to be fully soaked with the cleaning fluid, thereby fully softening and dissolving the dried medicine or bloodstains on the bandage and gauze, and avoiding mutual traction and tearing of the gauze and wound when removing the bandage and gauze.

[0059] In this embodiment, as Figures 9 to 10 As shown, there are three portal frames 233. The three portal frames 233 are set between the two wearing openings 202. Using three portal frames 233 to support the limbs wrapped with bandages can improve the stability of the support and effectively restrict the placement of the limbs.

[0060] It is understandable that the number of portal frames 233 can also be set to two. Using two portal frames 233 to support the limb part wrapped with bandage can also achieve the support effect, but the position restriction effect and support stability of the limb are weaker than the solution with three portal frames 233. Of course, the number of portal frames 233 can also be set to three or more. Using three or more portal frames 233 to support the limb part wrapped with bandage can improve the position restriction effect and support stability of the limb, but it will compress the available space of the suspended position 231, which will have an adverse effect on the wetting effect and wetting efficiency of the bandage. Therefore, in this embodiment, the number of portal frames 233 is preferably three.

[0061] To ensure that the bandages on the gantry 233 are also fully soaked, such as Figure 9 As shown, the portal frame 233 includes two upright plates 234 and a liquid-passing strip 235. The two upright plates 234 are spaced apart. The two ends of the liquid-passing strip 235 are connected to the two upright plates 234 respectively. The liquid-passing strip 235 is spaced apart from the base frame 232. The upright plates 234 support the liquid-passing strip 235, and the spaced liquid-passing strip 235 from the base frame 232 can form a gap between the bandage or gauze placed on the liquid-passing strip 235 and the base frame 232, increasing the exposed area of ​​the bandage or gauze. This allows the cleaning liquid sprayed from the lower nozzle 321 to effectively wet the bandage or gauze on the portal frame 233, ensuring that the bandage or gauze is fully wetted.

[0062] Furthermore, in order to improve the wetting effect of the bandage or gauze on the liquid strip 235, such as Figure 10As shown, the liquid-absorbing strip 235 is made of fabric strip. Since the fabric strip itself does not have waterproof properties, water molecules can penetrate into the bandage or yarn block through the fiber gaps of the fabric, thereby fully wetting the bandage or yarn block on the liquid-absorbing strip 235.

[0063] Understandably, by utilizing the breathability of the fabric strip, warm air can also be blown through the fabric strip to the wound area on the liquid strip 235, so that the part of the wound that is contaminated with cleaning solution can be dried quickly, thereby accelerating wound drying and improving dressing change efficiency.

[0064] Further, see Figure 4 and Figure 8 The height of the liquid-passing strip 235 is set to correspond to the position of the wearing port 202. By controlling the position of the liquid-passing strip 235 to correspond to the wearing port 202, it is easy to quickly locate the position of the arm or leg. The patient's arm or leg can be quickly placed at the wearing port 202 with the support of the liquid-passing strip 235, thereby improving the ease of use of the sealed box 20. At the same time, the liquid-passing strip 235 made of fabric has a certain degree of elasticity, which can adapt to the position of the patient's arm or leg, so that the patient's limb can be comfortably placed at the wearing port 202.

[0065] To prevent blood clots or sutures from entering the aspiration mechanism 50 and to ensure its stable operation, such as... Figure 10 As shown, the base frame 232 includes a filter plate 236 and a support leg 237. The filter plate 236 divides the enclosed space 201 into a cleaning chamber 203 and a filtrate chamber 204. The filter plate 236 has filter holes that connect the cleaning chamber 203 and the filtrate chamber 204. The cleaning chamber 203 is connected to the dressing port 202, and the filtrate chamber 204 is connected to the liquid extraction mechanism 50. The support leg 237 is connected to the filter plate 236 and is located in the filtrate chamber 204. Through the filter holes on the filter plate 236, the contaminated cleaning fluid can be filtered, blocking solid impurities such as blood clots, bandages, or detached gauze threads carried in the cleaning fluid on the side of the filter plate 236 facing the cleaning chamber 203. This effectively prevents blood clots or threads from entering the filtrate chamber 204, thereby ensuring the operational stability of the liquid extraction mechanism 50.

[0066] To improve the ease of cleaning and maintenance of the supporting component 23, such as Figures 8 to 9 As shown, the support component 23 is detachably connected to the lower cavity 211 of the base box 21. That is, the support component 23 is positioned by the filter plate 236 and supported by the support legs 237, and is inserted into the base box 21. After the cleaning work is completed, the support component 23 can be separated from the base box 21 to clean the stains on the filter plate 236 and the liquid flow strip 235 of the gantry frame 233, thereby improving the convenience of cleaning and maintenance of the support component 23.

[0067] Understandably, in order to improve the continuous use efficiency of the device, the number of support components 23 can be set to multiple. When one of the support components 23 is used up, the device can be quickly reused by replacing it with a spare sterile support component 23.

[0068] To improve the sealing effect of the enclosed space 201 and prevent cleaning fluid from overflowing into the enclosed space 201, please refer to... Figure 5 , Figure 10 and Figure 11 The sealed box 20 also includes a lower sealing strip 205 and an upper sealing strip 206. The lower sealing strip 205 covers the edge of the bottom box 21, and the upper sealing strip 206 covers the edge of the lid 22. When the bottom box 21 and the lid 22 are closed, part of the lower sealing strip 205 and part of the upper sealing strip 206 are in sealing contact. Both the lower sealing strip 205 and the upper sealing strip 206 are made of flexible silicone material and are U-shaped. Through the cooperation of the lower sealing strip 205 and the upper sealing strip 206, the sealing effect of the closed space 201 can be effectively improved, so as to prevent the cleaning fluid from overflowing into the closed space 201.

[0069] In actual use, due to differences in patient body size and the thickness of patient limbs, if the diameter of the wearing port 202 is too large, it is difficult to seal with patients with thinner limbs, and the cleaning solution may overflow from the gap between the wearing port 202 and the patient's limb during the spraying process; if the diameter of the wearing port 202 is too small, it is difficult for patients with thicker limbs to wear it, which will reduce the applicability of the sealing box 20.

[0070] In order to improve the applicability of the sealing box 20 while ensuring its sealing effect, such as... Figure 4 As shown, the sealed box 20 also includes a sealing sleeve 28, which is a disposable sterile sealing sleeve 28. The sealing sleeve 28 includes a sealing ring 281 and a shrink film 282. The sealing ring 281 is sealed and connected to the lower sealing strip 205 and the upper sealing strip 206. The shrink film 282 is connected to the sealing ring 281. The shrink film 282 has an elastic opening 283 for the limb to pass through. In use, the patient's limb is controlled to pass through the elastic opening 283 of the shrink film 282, and the shrink film 282 is used to seal and fit the patient's limb. When the sealed box 20 is closed, it is sealed and connected to the sealing ring 281 through the lower sealing strip 205 and the upper sealing strip 206, thereby preventing the cleaning solution from overflowing from the sealed box 201 during the spraying process. This can improve the applicability of the sealed box 20 while ensuring the sealing effect of the sealed box 20.

[0071] Specifically, such as Figure 15As shown, the sealing ring 281 includes a retaining ring 284 and a sealing ring 285. The retaining ring 284 is engaged with the sealing box 20, and the outer wall of the sealing ring 285 is in sealing contact with the lower sealing strip 205 and the upper sealing strip 206. The bottom box 21 has a first retaining groove, and the box cover 22 has a second retaining groove. When the bottom box 21 and the box cover 22 are closed, the retaining ring 284 is engaged in the first retaining groove and the second retaining groove. The shrink film 282 is made of medical elastic polyurethane film, which can elastically deform according to the thickness of the patient's limb and fit tightly against the outer wall of the patient's limb.

[0072] More specifically, such as Figures 11 to 12 As shown, the bottom box 21 includes a bottom shell 213 and a first protrusion 214. The bottom shell 213 has a lower notch 212. The first protrusion 214 is connected to the side of the bottom shell 213 near the lower notch 212 and has a first slot. The box cover 22 also includes a second protrusion 223 that connects to the box body 25. The second protrusion 223 is connected to the side of the box body 25 near the upper notch 222 and has a second slot.

[0073] like Figure 7 As shown, the guide pipe 30 includes a manifold 31, a lower spray pipe 32, and an upper spray pipe 33. The manifold 31 is connected to the lower spray pipe 32 and the upper spray pipe 33. The lower spray pipe 32 is installed on the bottom box 21 and has a lower spray nozzle 321. The upper spray pipe 33 is installed on the box cover 22 and has an upper spray nozzle 331. The lower spray nozzle 321 and the upper spray nozzle 331 are respectively located on opposite sides of the suspended position 231 and both face the suspended position 231.

[0074] During dressing changes, in order to prevent the wound from being infected again, it is necessary to control the cleanliness of the dressing change environment and limit the total number of bacterial colonies in the air. If the environment inside the sealed box 20 is not effectively protected, there is a risk of environmental contamination of the wound to be dressed in the enclosed space 201.

[0075] To improve the cleanliness of the dressing change environment, see [link / reference]. Figure 5 , Figure 7 and Figure 8 The lower spray pipe 32 is located in the filtrate chamber 204, and the filter plate 236 has a clearance opening 238 corresponding to the position of the lower spray port 321. By setting the lower spray pipe 32 in the filtrate chamber 204, it is possible to effectively prevent pollutants from contaminating the lower spray pipe 32 during the cleaning process, thereby preventing the lower spray pipe 32 from being contaminated and affecting the sanitary environment in the enclosed space 201, maintaining the sanitary environment in the enclosed space 201, effectively controlling the total number of bacterial colonies in the air in the enclosed space 201, and achieving the purpose of improving the cleanliness of the dressing change environment.

[0076] Specifically, such as Figure 7 and Figure 13As shown, the lower nozzle 32 includes a lower guide pipe 322, a lower ring pipe 323, and a lower nozzle 324. The lower guide pipe 322 is connected to the manifold 31, and the lower ring pipe 323 is connected to the lower guide pipe 322 and is arranged around the inner wall of the bottom box 21. The lower nozzle 324 is connected to the lower ring pipe 323. There are multiple lower nozzles 324, and each lower nozzle 324 is distributed at intervals along the lower ring pipe 323. Each lower nozzle 324 has a lower nozzle 321 and is arranged facing the suspended position 231. The clearance port 238 of the filter plate 236 is correspondingly arranged with the lower nozzle 324.

[0077] It is understandable that, such as Figure 7 and Figure 13 As shown, the structure of the upper nozzle 33 is the same as that of the lower nozzle 32, which can reduce the mold opening and production cost of the upper nozzle 33. Specifically, the upper nozzle 33 includes an upper guide tube 332, an upper ring tube 333 and an upper nozzle 334. The upper guide tube 332 is connected to the manifold 31, and the upper ring tube 333 is connected to the upper guide tube 332 and is arranged around the inner wall of the box cover 22. The upper nozzle 334 is connected to the upper ring tube 333. There are multiple upper nozzles 334, and each upper nozzle 334 is distributed at intervals along the upper ring tube 333. Each upper nozzle 334 has an upper spray port 331 and is arranged facing the suspended position 231.

[0078] In actual clinical work, dressing changes rely heavily on manual labor. The ease of operation directly affects the efficiency of dressing changes and the workload of medical staff. Existing devices have technical problems such as poor ease of use and low work efficiency.

[0079] To solve the technical problem of poor working efficiency of the above-mentioned device, such as Figure 3 As shown, the cleaning mechanism 40 is installed on the trolley 10 and connected to the manifold 31 for delivering cleaning fluid or warm air. Specifically, the cleaning mechanism 40 includes a spraying mechanism 41 and a warm air mechanism 42, both of which are connected to the manifold 31. The spraying mechanism 41 provides cleaning fluid to the manifold 31, and the warm air mechanism 42 delivers warm air to the manifold 31. The cleaning fluid provided to the manifold 31 by the spraying mechanism 41 can soften and dissolve dried medication or bloodstains on bandages or gauze. The warm air provided to the manifold 31 by the warm air mechanism 42 can increase the evaporation rate of the cleaning fluid on the surface of the patient's limb in the suspended position 231, preventing residual cleaning fluid on the patient's limb from contaminating the bed. At the same time, it can quickly dry the wound that has been contaminated with cleaning fluid, accelerate wound drying, and improve dressing change efficiency.

[0080] To address the technical problem of poor ease of use of the aforementioned devices, such as Figure 13As shown, the manifold 31 includes an input section 311, a manifold section 312, and an output section 313. There are two input sections 311, one of which is connected to the spray mechanism 41, and the other is connected to the warm air mechanism 42. The manifold section 312 connects the two input sections 311. There are two output sections 313, one of which is connected to the lower spray pipe 32, and the other is connected to the upper spray pipe 33. By connecting the input sections 311 and the output sections 313 through the manifold section 312, the total weight of the manifold 31 can be effectively reduced, the operational difficulty of transporting the sealed box 20 to the bed can be reduced, and the ease of use of the device can be improved.

[0081] To prevent the cleaning fluid output from the spray mechanism 41 from entering the heating mechanism 42 through the input section 311, or the warm air output from the heating mechanism 42 from entering the spray mechanism 41 through the input section 311, such as Figures 13 to 14 As shown, the manifold 31 also includes two check valves 34, each of which is located between the input section 311 and the manifold 312. By setting the check valves 34 between the input section 311 and the manifold 312, the cleaning fluid output by the spray mechanism 41 can be effectively prevented from entering the heating mechanism 42, and the warm air output by the heating mechanism 42 can also be prevented from entering the spray mechanism 41. This effectively prevents equipment damage caused by fluid backflow when the spray mechanism 41 and the heating mechanism 42 are working.

[0082] Specifically, the one-way valve 34 includes a valve tube 341, a movable plug 342, and an elastic element 343. The valve tube 341 has an inlet 344, a valve cavity 345, and an outlet 346 connected in sequence. The inlet 344 is connected to the corresponding input section 311, and the outlet 346 is connected to the confluence section 312. The movable plug 342 is movably housed in the valve cavity 345. The movable plug 342 has an annular groove 347, a flow port 348, and an outlet cavity 349 connected in sequence. The annular groove 347 is located on the side of the movable plug 342 near the inlet 344, and the outlet cavity 349 is located on the side of the movable plug 342 near the outlet 346. The elastic element 343 is a compression spring. The two ends of the elastic element 343 abut against the inner walls of the movable plug 342 and the valve tube 341, respectively, to drive the movable plug 342 to reset and close the inlet 344.

[0083] When the spray mechanism 41 is in use, the cleaning fluid enters the inlet 344 through the input section 311, pushing the movable plug 342 that closes the inlet 344 to move. The elastic element 343 contracts under force, and the inlet 344 is connected to the valve chamber 345. The cleaning fluid flows sequentially through the circulation groove 347, the overflow port 348 and the outlet chamber 349 in the valve chamber 345, and finally enters the valve chamber 345 near the outlet 346 through the outlet chamber 349, and then enters the confluence section 312 through the outlet 346. When the spray mechanism 41 is not in use, the elastic element 343 drives the movable plug 342 to reset and close the inlet 344, thereby preventing warm air from entering the inlet 344 through the valve chamber 345 and protecting the spray mechanism 41.

[0084] Similarly, when the heating mechanism 42 is in use, warm air enters the inlet 344 through the input section 311, pushing the movable plug 342 that closes the inlet 344 to move. The elastic element 343 contracts under force, and the inlet 344 is connected to the valve chamber 345. The warm air flows through the circulation groove 347, the outlet 348 and the outlet 349 in the valve chamber 345 in sequence, and finally enters the valve chamber 345 near the outlet 346 through the outlet 349, and then enters the confluence section 312 through the outlet 346. When the heating mechanism 42 is not in use, the elastic element 343 drives the movable plug 342 to reset and close the inlet 344, thereby preventing the cleaning fluid from entering the inlet 344 through the valve chamber 345 and protecting the heating mechanism 42.

[0085] Understandably, the one-way valve 34 relies on the fluid pressure provided by the liquid injection mechanism 41 or the warm air mechanism 42 to push the movable plug 342 to compress the elastic element 343, thereby opening the inlet 344, the valve chamber 345 and the outlet 346; when the fluid pressure disappears, the elastic element 343 drives the movable plug 342 to reset, closing the inlet 344 to prevent the backflow of cleaning fluid or gas.

[0086] To save heating time of the cleaning solution and quickly provide heated cleaning solution, such as... Figure 3 As shown, the spraying mechanism 41 includes a storage tank 411, a transfer pump 412, a heating chamber 413, and a delivery pump 414. The storage tank 411 is used to store cleaning fluid. The transfer pump 412 connects the storage tank 411 and the heating chamber 413. The transfer pump 412 is used to pump the cleaning fluid in the storage tank 411 to the heating chamber 413. The heating chamber 413 is used to heat the cleaning fluid. The delivery pump 414 is used to extract the cleaning fluid in the heating chamber 413 and deliver it to the guide pipeline 30. The volume of the heating chamber 413 is smaller than that of the storage tank 411. The cleaning fluid in the storage tank 411 is extracted to the heating chamber 413 by the transfer pump 412. The heating chamber 413 is used for batch heating, which can reduce the volume of cleaning fluid heated in a single heating, thereby saving the heating time of the cleaning fluid and enabling the spraying mechanism 41 to quickly provide heated cleaning fluid.

[0087] Among them, such as Figure 3 As shown, the heating box 413 includes a box body 415 and a heating tube 416. The box body 415 is installed inside the trolley 10, and the heating section of the heating tube 416 is housed inside the box body 415. The frame 12 of the trolley 10 has a first receiving slot 121 for loading the liquid storage tank 411. The liquid storage tank 411 is detachably connected to the first receiving slot 121 to facilitate medical staff to add cleaning fluid to the liquid storage tank 411.

[0088] The heating mechanism 42 can select a suitable heater according to the volume of the enclosed space 201. In this embodiment, the heating mechanism 42 adopts a heater that generates resistance heating effect through heating wire or heating tube. Its specific structure is conventional technology in the field and will not be described in detail here.

[0089] like Figure 3 As shown, the liquid extraction mechanism 50 is installed on the trolley 10 and is used to extract contaminated cleaning fluid from the sealed box 20. The liquid extraction mechanism 50 includes a liquid extraction tank 51, a waste fluid bag (not shown), a liquid extraction pump 52, and a liquid extraction pipe 53. The liquid extraction tank 51 is used to hold the waste fluid bag. The liquid extraction pump 52 is connected in series on the liquid extraction pipe 53. The inlet end of the liquid extraction pipe 53 is connected to the filtration chamber 204 of the sealed box 20, and the outlet end of the liquid extraction pipe 53 is connected to the inlet of the waste fluid bag. The liquid extraction pump 52 is used to extract contaminated cleaning fluid from the filtration chamber 204 of the enclosed space 201 through the liquid extraction pipe 53 and transport the waste fluid to the waste fluid bag for storage. The frame 12 of the trolley 10 has a second receiving slot 122 for loading the liquid extraction tank 51. The liquid extraction tank 51 and the second receiving slot 122 are detachably connected to facilitate medical personnel to remove and replace the waste fluid bag and to carry out compliant treatment of medical waste fluid.

[0090] In practical use, medical staff can seal the inlet of the waste liquid bag to the outlet of the suction tube 53 with a medical bandage, so that the extracted waste liquid can flow into the waste liquid bag through the suction tube 53. When the waste liquid in the waste liquid bag reaches the rated capacity, the medical bandage can be untied, and the waste liquid bag filled with waste liquid can be taken out from the suction tank 51 and disposed of in accordance with the medical waste disposal regulations.

[0091] To improve the operational stability of the cleaning mechanism 40 and the liquid extraction mechanism 50, such as Figure 3 As shown, the frame 12 of the trolley 10 has a receiving cavity 123, which is located at the top of the first receiving groove 121 and the second receiving groove 122. The liquid pump 412, the heating box 413, the infusion pump 414 and the warm air mechanism 42 are all installed in the receiving cavity 123. The receiving cavity 123 protects the liquid pump 412, the heating box 413, the infusion pump 414 and the warm air mechanism 42, which can effectively prevent the cleaning liquid in the storage tank 411 or the extraction tank 51 from splashing and causing short circuit damage to electrical components, thereby improving the operational stability of the cleaning mechanism 40 and the extraction mechanism 50.

[0092] The wound cleaning device 100 of the present invention is used as follows: place the sealed box 20 on the frame 12 of the trolley 10, and push the frame 12 to the side of the target hospital bed by means of the cooperation of the push rod 13 and the caster wheel 11 of the trolley 10; lift the sealed box 20 onto the hospital bed by means of the handle 24 of the sealed box 20, and open the bottom box 21 and the lid 22.

[0093] Take a sterile disposable sealing sleeve 28, and guide the patient's limb to be dressed through the elastic opening 283 of the shrink film 282 of the sealing sleeve 28. Adjust the position of the sealing sleeve 28 so that the shrink film 282 fits tightly against the proximal end of the limb to be dressed, thus completing the pre-sealing of the limb and the sealing sleeve 28. Insert the retaining ring 284 of the sealing ring 281 of the sealing sleeve 28 into the first slot of the bottom box 21. Then, place the patient's limb to be dressed stably on the portal frame 233 of the support component 23. Adjust the position of the limb so that the dressing area is in the suspended position 231 between the adjacent portal frames 233.

[0094] Close the lid 22 and fasten the buckle to form a closed space 201 by enclosing the bottom box 21 and the lid 22. When the lid 22 is closed, the second slot of the lid 22 engages with the retaining ring 284 of the sealing ring 281. The lower sealing strip 205 of the bottom box 21 and the upper sealing strip 206 of the lid 22 simultaneously press the sealing ring 285 of the sealing ring 281, thus completing the double seal at the wearing opening 202.

[0095] The spray mechanism 41 of the cleaning mechanism 40 is activated, and the cleaning liquid in the storage tank 411 is drawn into the heating box 413 by the liquid pump 412. After being heated by the heating box 413, the cleaning liquid is delivered by the pump 414 through the manifold 31 of the guide pipe 30 to the lower spray pipe 32 and the upper spray pipe 33. With the cooperation of the lower nozzle 321 of the lower spray pipe 32 and the upper nozzle 331 of the upper spray pipe 33, the cleaning liquid is sprayed towards the suspended position 231 of the support component 23 to wet the bandage and gauze. At the same time, the pump 52 of the liquid extraction mechanism 50 is activated to extract the contaminated cleaning liquid that has been filtered by the filter plate 236 of the support component 23 from the filtration chamber 204 of the closed space 201, so as to control the liquid level in the closed space 201 and reduce the air humidity in the closed space 201.

[0096] Once the bandage or gauze at the suspended position 231 is fully soaked, open the lid 22, remove the bandage and gauze, close the lid 22 again, fasten the buckle, and start the warm air mechanism 42. The warm air mechanism 42 delivers warm air to the lower spray pipe 32 and the upper spray pipe 33 through the manifold 31 of the guide pipe 30. By utilizing the cooperation of the lower nozzle 321 of the lower spray pipe 32 and the upper nozzle 331 of the upper spray pipe 33, the warm air is sprayed onto the wound at the suspended position 231 to accelerate the drying of the wound. Finally, open the lid 22, remove the patient's limb from the sealed sleeve 28, and perform the subsequent dressing change operation.

[0097] After use, remove the support component 23 from the bottom box 21 of the sealed box 20 and replace it with a spare sterile support component 23; dispose of the used disposable sealing sleeve 28 in accordance with the medical waste disposal regulations; clean and disinfect the used support component 23 to prepare for the next use of the device.

[0098] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0099] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A wound cleaning device, comprising a trolley, a cleaning mechanism, and a fluid extraction mechanism, wherein the trolley carries the cleaning mechanism and the fluid extraction mechanism, the cleaning mechanism outputs a cleaning medium, and the fluid extraction mechanism recovers contaminated waste liquid generated during dressing changes, characterized in that... The wound cleaning device further includes a sealed box and a guide tube. The sealed box includes a base, a lid, and a support assembly. The base and lid are rotatably connected and enclose a closed space and a wearing port connected to the closed space. The wearing port is for the patient's limb to be inserted. The support assembly is detachably installed in the closed space and has a suspended position for exposing the patient's dressing area. The guide tube includes a manifold, a lower spray pipe, and an upper spray pipe. The input end of the manifold is connected to the output end of the cleaning mechanism, and the output end of the manifold is connected to the lower spray pipe and the upper spray pipe, respectively. The lower spray pipe is installed in the base and has a lower nozzle facing the suspended position. The upper spray pipe is installed in the lid and has an upper nozzle facing the suspended position. The aspiration mechanism is connected to the closed space.

2. The wound cleaning device according to claim 1, characterized in that, The supporting component includes a base frame and a portal frame. The base frame is embedded in the base box, and there are multiple portal frames. Adjacent portal frames are spaced apart to form the suspended space.

3. The wound cleaning device according to claim 2, characterized in that, The base frame includes a filter plate and support legs. The filter plate divides the enclosed space into a cleaning chamber and a filtrate chamber, and has a filter hole that connects the cleaning chamber and the filtrate chamber. The cleaning chamber is connected to the wearing port, and the filtrate chamber is connected to the liquid extraction mechanism. The support legs are connected to the filter plate and are disposed in the filtrate chamber.

4. The wound cleaning device according to claim 1, characterized in that, The sealed box also includes a lower sealing strip and an upper sealing strip. The lower sealing strip covers the edge of the bottom box, and the upper sealing strip covers the edge of the lid. When the bottom box and the lid are closed, part of the lower sealing strip and part of the upper sealing strip are in sealing contact.

5. The wound cleaning device according to claim 1, characterized in that, The sealed box also includes a sealing sleeve, which includes a sealing ring and a shrink film connecting the sealing ring. The shrink film has an elastic opening for the patient's limb to pass through. The sealing ring is sealed to the bottom box and the box cover.

6. The wound cleaning device according to claim 1, characterized in that, The cleaning mechanism includes a liquid spraying mechanism and a warm air mechanism. Both the liquid spraying mechanism and the warm air mechanism are connected to the manifold. The liquid spraying mechanism is used to provide cleaning liquid to the manifold, and the warm air mechanism is used to deliver warm air to the manifold.

7. The wound cleaning device according to claim 6, characterized in that, The liquid spraying mechanism includes a storage tank, a liquid transfer pump, a heating tank, and a delivery pump. The storage tank is used to store cleaning fluid. The liquid transfer pump connects the storage tank and the heating tank and is used to pump the cleaning fluid from the storage tank to the heating tank. The heating tank is used to heat the cleaning fluid. The delivery pump is used to extract the cleaning fluid from the heating tank and supply it to the guide pipeline.

8. The wound cleaning device according to claim 1, characterized in that, The box cover includes a box body and a water-blocking block. The box body is provided with a retention channel that connects to the enclosed space. The water-blocking block is located above the suspended position. The side wall of the water-blocking block is provided with an air inlet that connects the retention channel and the enclosed space.

9. The wound cleaning device according to claim 8, characterized in that, The box cover also includes a blocking block, which covers the stagnation channel, and the side wall of the blocking block is provided with an air outlet that communicates with the stagnation channel.

10. The wound cleaning device according to claim 1, characterized in that, The liquid extraction mechanism includes a liquid extraction tank, a waste liquid bag, a liquid extraction pump, and a liquid extraction pipe. The liquid extraction tank is used to hold the waste liquid bag. The liquid extraction pump is connected in series with the liquid extraction pipe. The inlet end of the liquid extraction pipe is connected to the enclosed space, and the outlet end of the liquid extraction pipe is connected to the waste liquid bag.

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