Medical dressing and application operation steps

Abstract

The invention discloses a medical dressing and application operation steps, and relates to the field of dressing structures, the medical dressing comprises a fan-shaped linkage positive and negative pressure device, a negative pressure adsorption device and a medical dressing device, and the negative pressure adsorption device comprises a negative pressure cover. The air bag can be compressed synchronously, negative pressure is generated in the arc-shaped pipe, and therefore the pressure of liquid medicine in the second application cover is increased synchronously, the air pressure in the negative pressure cover is reduced synchronously, the negative pressure cover is adsorbed to the skin of the human body through the negative pressure synchronously, the cupping effect is achieved, and the pressure of the liquid medicine in the second application cover is slightly increased; liquid in the second dressing cover is matched with the skin of the human body under certain pressure, so that the permeation effect of medicine components of the dressing film on the human body is improved.

Description

Technical Field

[0001] This invention relates to a dressing structure, and more specifically, to a medical dressing and the application procedure. Background Technology

[0002] Existing medical dressings generally involve applying a medicated patch to the surface of the body, resulting in poor penetration of the medication. For example, Chinese invention patent publication number CN118415820B discloses a large-area medical dressing patch, such as... Figure 9 As shown, the technical solution disclosed in this patent document only uses the method of attaching the medicine pack to the surface of the human body for application, and the penetration effect of the medicine is poor. Summary of the Invention

[0003] The purpose of this invention is to provide a medical dressing and application procedure that simultaneously compresses the airbag and generates negative pressure inside the arc-shaped tube, thereby simultaneously increasing the pressure of the liquid medicine inside the second dressing and decreasing the air pressure inside the negative pressure cover. This allows the negative pressure cover to adhere to the skin, achieving a cupping effect, and slightly increasing the pressure of the liquid medicine inside the second dressing, allowing the liquid inside the second dressing to work with the skin at a certain pressure, thereby improving the penetration effect of the drug components of the dressing film into the human body.

[0004] To achieve the above objectives, the present invention employs the following technical solution: A medical dressing and its application procedure includes a fan-shaped linkage positive and negative pressure device, a negative pressure adsorption device, and a medical dressing device. The negative pressure adsorption device includes a negative pressure cover. The medical dressing device includes a first dressing cover and a second dressing cover. Several negative pressure covers are connected to the side of the first dressing cover. The second dressing cover is installed inside the first dressing cover. Both the second dressing cover and the negative pressure covers are shell structures with openings at the bottom. A dressing film is installed at the opening end of the second dressing cover. The fan-shaped linkage positive and negative pressure device is installed on the upper part of the first dressing cover. The fan-shaped linkage positive and negative pressure device includes a cylindrical container. The cylindrical container is a cylindrical shell structure with an open bottom. The other bottom surface of the cylindrical container is connected to the first dressing cover. A rotating plate, a positive pressure device, a negative pressure device, and a quick-unlocking locator are installed inside the cylindrical container. The rotating plate can synchronously control the positive pressure device and the negative pressure device. The positive pressure device can increase the pressure inside the second dressing cover, and the negative pressure device can decrease the pressure inside the negative pressure cover. A handle is connected to one side of the rotating plate.

[0005] To further achieve the objectives of this invention, the following technical solutions can also be adopted: The positive pressure device includes a pressure plate and an airbag. A bearing is installed on one side of the cylindrical container. The outer ring of the bearing is connected to the inner wall of the cylindrical container. A rotating plate is connected to the inner ring of the bearing. A pressure plate is connected to one side of the cylindrical container. An airbag is installed between the pressure plate and the rotating plate. The two sides of the airbag are connected to the pressure plate and the rotating plate, respectively. The negative pressure device includes an arc-shaped tube. The center point of the circle containing the central axis of the arc-shaped tube coincides with the central axis of the bearing. A piston is installed inside the arc-shaped tube. The side circumference of the piston is in contact with the side circumference of the inner wall of the arc-shaped tube. An arc-shaped rod is connected to one side of the piston. One end of the arc-shaped rod is connected to the rotating plate. The distance between the end of the rotating plate and the airbag mating part and the central axis of the bearing is H. The distance between the rotating plate and the arc-shaped rod foam latex block mating part and the central axis of the bearing is D. H is less than D. The inside of the airbag is connected to one end of the second tube. The other end of the second tube is connected to the inside of the second cover. The inside of the arc-shaped tube is connected to one end of the first tube. The other end of the first tube is connected to the inside of the negative pressure cover. A limiting plate is connected to one side of the rotating plate.

[0006] The quick-unlock locator includes a U-shaped elastic plate, one end of which is connected to a dovetail block. A pull ring is connected to one side of the dovetail block, and the other side of the U-shaped elastic plate is connected to a first wedge block. A first inclined surface is provided on one side of the first wedge block, and a first straight surface is provided on the other side of the first wedge block. A dovetail groove is opened on one side of the rotating plate, and the dovetail block can be inserted and matched with the dovetail groove. Several second wedge blocks are connected to the inner wall of the cylindrical container. A second inclined surface is provided on one side of the second wedge block, and a second straight surface is provided on the other side of the second wedge block.

[0007] The outer side of the negative pressure cover is connected with straps.

[0008] The inner wall of the opening of the second dressing has an internal thread, and a mesh plate is installed in the opening of the second dressing. The outer side of the mesh plate has exposed texture, and the mesh plate can be threadedly connected to the second dressing. A pressure ring is installed inside the second dressing, and the side of the pressure ring is connected to the inner wall of the second dressing. The pressure ring and the mesh plate can cooperate to clamp the dressing film.

[0009] Including the application procedure: ① The person holds the handle and pushes the second cover opening and the negative pressure cover opening of the device to match the human skin surface with a certain pressure; ② Use straps to bind the device to the human body, so that the opening end of the second dressing and the opening end of the negative pressure mask fit the human skin with a certain pressure. ③ The person rotates the handle counterclockwise. During this process, the airbag is compressed, allowing the medicine inside the airbag to be injected into the second dressing at a certain pressure. This slightly increases the pressure of the medicine inside the second dressing, thereby improving the penetration effect of the medicine components of the dressing film into the human body. ④ At the same time, the piston is pulled out, which creates negative pressure inside the arc-shaped tube, thereby reducing the air pressure inside the negative pressure cover. This allows the negative pressure cover to adhere to the skin of the human body using negative pressure, achieving the cupping effect. ⑤ During the counterclockwise rotation of the rotating plate, the first inclined surface of the first wedge block engages with the second inclined surface of different second wedge blocks, thereby pushing the U-shaped elastic plate to be compressed, thus facilitating the smooth passage of the first wedge block through different second wedge blocks; ⑥ After the rotating plate has finished rotating, the U-shaped elastic plate drives the first wedge block to reset. At this time, the first straight surface of the first wedge block cooperates with the second straight surface of the corresponding second wedge block, thereby preventing the fast unlocking locator from being unlocked uncontrollably. ⑦ When quick unlocking is required, personnel only need to pull the pull ring to pull the dovetail block out of the dovetail groove, which can quickly release the engagement between the first wedge block and the second wedge block, thereby quickly releasing the lock on the rotating plate, making it convenient for personnel to reset the rotating plate, thereby releasing the negative pressure state inside the negative pressure cover and the high pressure state inside the second cover, making it convenient for personnel to remove the device from the human skin.

[0010] The advantages of this invention are: This invention combines a fan-shaped linkage positive and negative pressure device, a quick-unlocking locator, a negative pressure adsorption device, and a medical dressing device, enabling simultaneous achievement of: ① By simply rotating the handle, the operator can simultaneously compress the airbag, creating negative pressure inside the arc-shaped tube. This simultaneously increases the pressure of the medicinal liquid inside the second dressing and decreases the air pressure inside the negative pressure mask. Consequently, the negative pressure mask adheres to the skin, achieving a cupping effect. It also slightly increases the pressure of the medicinal liquid inside the second dressing, allowing the liquid inside the second dressing to interact with the skin at a certain pressure, thereby improving the penetration of the drug components of the dressing into the body.

[0011] ② After several negative pressure covers simultaneously generate negative pressure and adhere to the human skin, the straps work together to bind the device to the human body. This allows the lower opening of the second cover to pressurize and engage with the human skin, thus preventing excessive leakage of the medicine after pressurization and maintaining a certain pressure to improve the penetration effect of the medicine into the human skin.

[0012] ③ When quick unlocking is required, personnel only need to pull the pull ring to pull the dovetail block out of the dovetail groove, which can quickly release the engagement between the first wedge block and the second wedge block, thereby quickly releasing the lock on the rotating plate and making it convenient for personnel to reset the rotating plate. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the enlarged structure in direction A; Figure 3 for Figure 2 Enlarged structural diagram of Part I; Figure 4 This is a schematic diagram of the structure of the airbag after compression according to the present invention; Figure 5 This is a schematic diagram of the structure of the quick-unlock locator after unlocking according to the present invention; Figure 6 A schematic diagram showing the structure of the present invention with the addition of a limiting plate; Figure 7 for Figure 1 A schematic diagram of the B-axis magnified structure; Figure 8 This is a schematic diagram of the structure of the present invention after adding the straps; Figure 9 This is a schematic diagram of the structure of the prior art patent publication number: CN210962580U.

[0014] Components marked: 1. Handle plate; 2. Cylindrical container; 3. First tube; 4. Second tube; 5. First dressing cover; 6. Support rod; 7. Second dressing cover; 8. Annular gap; 9. Pressure ring; 10. Dressing film; 11. Filling area; 12. Mesh plate; 13. Annular film; 14. Dovetail groove; 15. Dovetail block; 16. U-shaped elastic plate; 17. First wedge block; 18. First inclined surface; 19. First straight surface; 20. Second inclined surface; 21. Second straight surface; 22. Pressure plate; 23. Airbag; 24. Rotating plate; 25. Bearing; 26. Arc tube; 27. Piston; 28. Limiting plate; 29. ​​Arc rod; 30. Strap; 31. Pull ring; 32. Second wedge block. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Example 1:

[0016] A medical dressing and application procedure, such as Figures 1-8As shown, the device includes a fan-shaped linkage positive and negative pressure device, a negative pressure adsorption device, and a medical dressing device. The negative pressure adsorption device includes a negative pressure cover 8. The medical dressing device includes a first dressing cover 5 and a second dressing cover 7. Several negative pressure covers 8 are connected to the side of the first dressing cover 5. The second dressing cover 7 is installed inside the first dressing cover 5. Both the second dressing cover 7 and the negative pressure cover 8 are shell structures with openings at the bottom. A dressing film 10 is installed at the opening end of the second dressing cover 7. The fan-shaped linkage positive and negative pressure device is installed on the upper part of the first dressing cover 5. The fan-shaped linkage positive and negative pressure device includes a cylindrical container 2. The cylindrical container 2 is a cylindrical shell structure with an open bottom. The other bottom surface of the cylindrical container 2 is connected to the first dressing cover 5. A rotating plate 24, a positive pressure device, a negative pressure device, and a quick unlocking locator are installed inside the cylindrical container 2. The rotating plate 24 can synchronously control the positive pressure device and the negative pressure device. The positive pressure device can increase the pressure inside the second dressing cover 7, and the negative pressure device can decrease the pressure inside the negative pressure cover 8. A handle plate 1 is connected to one side of the rotating plate 24.

[0017] ①This invention combines a fan-shaped linkage positive and negative pressure device, a quick unlocking locator, a negative pressure adsorption device, and a medical dressing device, enabling simultaneous achievement of: By simply rotating handle 1, personnel can simultaneously compress airbag 23, creating negative pressure within arc-shaped tube 26. This simultaneously increases the pressure of the medicinal liquid inside second dressing 7 and decreases the air pressure inside negative pressure cover 8. Consequently, negative pressure cover 8 adheres to the skin using negative pressure, achieving a cupping effect. It also slightly increases the pressure of the medicinal liquid inside second dressing 7, allowing the liquid inside second dressing 7 to interact with the skin at a certain pressure, thereby enhancing the penetration of the medicinal components of dressing film 10 into the body.

[0018] ② After several negative pressure covers 8 simultaneously generate negative pressure and adhere to the human skin, the straps 30 work together to bind the device to the human body. This allows the lower opening of the second cover 7 to be pushed to engage with the human skin at a certain pressure. This prevents excessive liquid leakage after the liquid is pressurized, maintains a certain pressure, and improves the penetration effect of the liquid into the human skin.

[0019] ③ When quick unlocking is required, personnel only need to pull the dovetail block 15 out of the dovetail groove 14 by pulling the pull ring 31, which can quickly release the engagement between the first wedge block 17 and the second wedge block 32, thereby quickly releasing the lock on the rotating plate 24, making it convenient for personnel to reset the rotating plate 24.

[0020] Specific material selection and feasibility analysis: The samples we actually produced used the accompanying drawings as blueprints, and were implemented according to the proportions and assembly methods of each component in the drawings. The connections used were common methods such as strong adhesive bonding, welding, riveting, flange connections, and integral molding connections. During actual production, the appropriate connection method, thickness, and strength of the connection points can be selected based on the actual connection strength requirements without creative design. The dressing membrane 10 can seal the lower opening of the second dressing 7. The interior of the second dressing 7 and the air bladder 23 are filled with a medicinal solution for dressing treatment. The dressing membrane 10 can be made of a permeable membrane or fiber cloth material with a pore size larger than the effective components of the medicinal solution, allowing the solution to permeate smoothly. A heater 33 is connected inside the second dressing 7. The heater 33 can be a constant temperature heating device. A battery box and a switch can be connected to the first dressing 5, with the battery box, switch, and heater 33 connected in series. The heater 33 can heat the medicinal solution inside the second dressing 7, achieving a heat therapy effect. Example 2:

[0021] A medical dressing and application procedure, such as Figures 1-8 As shown, the device includes a fan-shaped linkage positive and negative pressure device, a negative pressure adsorption device, and a medical dressing device. The negative pressure adsorption device includes a negative pressure cover 8. The medical dressing device includes a first dressing cover 5 and a second dressing cover 7. Several negative pressure covers 8 are connected to the side of the first dressing cover 5. The second dressing cover 7 is installed inside the first dressing cover 5. Both the second dressing cover 7 and the negative pressure cover 8 are shell structures with openings at the bottom. A dressing film 10 is installed at the opening end of the second dressing cover 7. The fan-shaped linkage positive and negative pressure device is installed on the upper part of the first dressing cover 5. The fan-shaped linkage positive and negative pressure device includes a cylindrical container 2. The cylindrical container 2 is a cylindrical shell structure with an open bottom. The other bottom surface of the cylindrical container 2 is connected to the first dressing cover 5. A rotating plate 24, a positive pressure device, a negative pressure device, and a quick unlocking locator are installed inside the cylindrical container 2. The rotating plate 24 can synchronously control the positive pressure device and the negative pressure device. The positive pressure device can increase the pressure inside the second dressing cover 7, and the negative pressure device can decrease the pressure inside the negative pressure cover 8. A handle plate 1 is connected to one side of the rotating plate 24.

[0022] The positive pressure device includes a pressure plate 22 and an air bladder 23. A bearing 25 is installed on one side of the cylindrical container 2, and the outer ring of the bearing 25 is connected to the inner wall of the cylindrical container 2. The inner ring of the bearing 25 is connected to a rotating plate 24. The pressure plate 22 is connected to one side of the cylindrical container 2, and an air bladder 23 is installed between the pressure plate 22 and the rotating plate 24. The two sides of the air bladder 23 are connected to the pressure plate 22 and the rotating plate 24, respectively. The negative pressure device includes an arc-shaped tube 26. The center point of the circle containing the central axis of the arc-shaped tube 26 coincides with the central axis of the bearing 25. A piston 27 is installed inside the arc-shaped tube 26, and the side circumference of the piston 27 is connected to the inner wall of the arc-shaped tube 26. The piston 27 is fitted to the side, and one side of the piston 27 is connected to the arc rod 29. One end of the arc rod 29 is connected to the rotating plate 24. The distance between the rotating plate 24 and the airbag 23 and the central axis of the bearing 25 is H. The distance between the rotating plate 24 and the foam latex block of the arc rod 29 and the central axis of the bearing 25 is D. H is less than D. The interior of the airbag 23 is connected to one end of the second tube 4. The other end of the second tube 4 is connected to the interior of the second cover 7. The interior of the arc tube 26 is connected to one end of the first tube 3. The other end of the first tube 3 is connected to the interior of the negative pressure cover 8. One side of the rotating plate 24 is connected to the limiting plate 28.

[0023] The limiting plate 28, pressure plate 22, rotating plate 24, and cylindrical container 2 of the present invention can cooperate to partially wrap the airbag 23, thereby facilitating the smooth compression of the airbag 23. The distance between one end of the rotating plate 24 that mates with the airbag 23 and the central axis of the bearing 25 is H, and the distance between the rotating plate 24 that mates with the arc-shaped rod 29 and the central axis of the bearing 25 is D. Since H is less than D, the sliding amount of the piston 27 can be greater than the amount of compression of the airbag 23, thereby improving the negative pressure effect of the negative pressure cover 8 and enhancing the cupping effect of the negative pressure cover 8. Example 3:

[0024] A medical dressing and application procedure, such as Figures 1-8 As shown, the device includes a fan-shaped linkage positive and negative pressure device, a negative pressure adsorption device, and a medical dressing device. The negative pressure adsorption device includes a negative pressure cover 8. The medical dressing device includes a first dressing cover 5 and a second dressing cover 7. Several negative pressure covers 8 are connected to the side of the first dressing cover 5. The second dressing cover 7 is installed inside the first dressing cover 5. Both the second dressing cover 7 and the negative pressure cover 8 are shell structures with openings at the bottom. A dressing film 10 is installed at the opening end of the second dressing cover 7. The fan-shaped linkage positive and negative pressure device is installed on the upper part of the first dressing cover 5. The fan-shaped linkage positive and negative pressure device includes a cylindrical container 2. The cylindrical container 2 is a cylindrical shell structure with an open bottom. The other bottom surface of the cylindrical container 2 is connected to the first dressing cover 5. A rotating plate 24, a positive pressure device, a negative pressure device, and a quick unlocking locator are installed inside the cylindrical container 2. The rotating plate 24 can synchronously control the positive pressure device and the negative pressure device. The positive pressure device can increase the pressure inside the second dressing cover 7, and the negative pressure device can decrease the pressure inside the negative pressure cover 8. A handle plate 1 is connected to one side of the rotating plate 24.

[0025] The quick-unlocking locator includes a U-shaped elastic plate 16, one end of which is connected to a dovetail block 15. A pull ring 31 is connected to one side of the dovetail block 15, and a first wedge block 17 is connected to the other side of the U-shaped elastic plate 16. A first inclined surface 18 is provided on one side of the first wedge block 17, and a first straight surface 19 is provided on the other side of the first wedge block 17. A dovetail groove 14 is opened on one side of the rotating plate 24, and the dovetail block 15 can be inserted and matched with the dovetail groove 14. Several second wedge blocks 32 are connected to the inner wall of the cylindrical container 2. A second inclined surface 20 is provided on one side of the second wedge block 32, and a second straight surface 21 is provided on the other side of the second wedge block 32.

[0026] When a person holds the handle plate 1 and pushes the opening of the second cover 7 and the opening of the negative pressure cover 8 of this device to fit against the surface of human skin with a certain pressure, in this invention... Figure 2 In the middle, the operator can rotate handle 1 counterclockwise, thereby allowing the device to move from... Figure 2 State transformation Figure 4 In this process, the airbag 23 is compressed, allowing the medicinal liquid inside the airbag 23 to be injected into the interior of the second dressing 7 under certain pressure. This slightly increases the pressure of the medicinal liquid inside the second dressing 7, thereby enhancing the penetration effect of the medicinal components of the dressing film 10 into the human body. At the same time, the piston 27 is pulled out, creating negative pressure inside the arc-shaped tube 26, thereby reducing the air pressure inside the negative pressure cover 8. This allows the negative pressure cover 8 to adhere to the human skin using negative pressure, achieving a cupping effect. During the counterclockwise rotation of the rotating plate 24, the first inclined surface 18 of the first wedge block 17 engages with the second inclined surface 20 of different second wedge blocks 32, thereby pushing the U-shaped elastic plate 16 to be compressed, thus facilitating the smooth passage of the first wedge block 17 through different second wedge blocks 32. After the rotating plate 24 has finished rotating, the U-shaped elastic plate 16 drives the first wedge block 17 to reset. At this time, the first straight surface 19 of the first wedge block 17 engages with the second straight surface 21 of the corresponding second wedge block 32, thereby preventing the quick-unlocking locator from being unlocked uncontrollably. When quick unlocking is required, the operator only needs to pull the pull ring 31 to pull the dovetail block 15 out of the dovetail groove 14, which can quickly release the engagement between the first wedge block 17 and the second wedge block 32, thereby quickly releasing the lock on the rotating plate 24, making it convenient for the operator to reset the rotating plate 24. Example 4:

[0027] A medical dressing and application procedure, such as Figures 1-8As shown, the device includes a fan-shaped linkage positive and negative pressure device, a negative pressure adsorption device, and a medical dressing device. The negative pressure adsorption device includes a negative pressure cover 8. The medical dressing device includes a first dressing cover 5 and a second dressing cover 7. Several negative pressure covers 8 are connected to the side of the first dressing cover 5. The second dressing cover 7 is installed inside the first dressing cover 5. Both the second dressing cover 7 and the negative pressure cover 8 are shell structures with openings at the bottom. A dressing film 10 is installed at the opening end of the second dressing cover 7. The fan-shaped linkage positive and negative pressure device is installed on the upper part of the first dressing cover 5. The fan-shaped linkage positive and negative pressure device includes a cylindrical container 2. The cylindrical container 2 is a cylindrical shell structure with an open bottom. The other bottom surface of the cylindrical container 2 is connected to the first dressing cover 5. A rotating plate 24, a positive pressure device, a negative pressure device, and a quick unlocking locator are installed inside the cylindrical container 2. The rotating plate 24 can synchronously control the positive pressure device and the negative pressure device. The positive pressure device can increase the pressure inside the second dressing cover 7, and the negative pressure device can decrease the pressure inside the negative pressure cover 8. A handle plate 1 is connected to one side of the rotating plate 24.

[0028] The outer side of the negative pressure cover 8 is connected by a strap 30.

[0029] The strap 30 of the present invention can easily bind the device to the human body and can push the lower opening of the second dressing 7 to fit against the human skin with a certain pressure, thereby preventing excessive leakage of the medicine after pressurizing the medicine, allowing the medicine to maintain a certain pressure, and improving the penetration effect of the medicine into the human skin. Example 5:

[0030] A medical dressing and application procedure, such as Figures 1-8As shown, the device includes a fan-shaped linkage positive and negative pressure device, a negative pressure adsorption device, and a medical dressing device. The negative pressure adsorption device includes a negative pressure cover 8. The medical dressing device includes a first dressing cover 5 and a second dressing cover 7. Several negative pressure covers 8 are connected to the side of the first dressing cover 5. The second dressing cover 7 is installed inside the first dressing cover 5. Both the second dressing cover 7 and the negative pressure cover 8 are shell structures with openings at the bottom. A dressing film 10 is installed at the opening end of the second dressing cover 7. The fan-shaped linkage positive and negative pressure device is installed on the upper part of the first dressing cover 5. The fan-shaped linkage positive and negative pressure device includes a cylindrical container 2. The cylindrical container 2 is a cylindrical shell structure with an open bottom. The other bottom surface of the cylindrical container 2 is connected to the first dressing cover 5. A rotating plate 24, a positive pressure device, a negative pressure device, and a quick unlocking locator are installed inside the cylindrical container 2. The rotating plate 24 can synchronously control the positive pressure device and the negative pressure device. The positive pressure device can increase the pressure inside the second dressing cover 7, and the negative pressure device can decrease the pressure inside the negative pressure cover 8. A handle plate 1 is connected to one side of the rotating plate 24. The inner wall of the opening of the second dressing 7 is threaded, and a mesh plate 12 is installed in the opening of the second dressing 7. The outer side of the mesh plate 12 is exposed. The mesh plate 12 can be threadedly connected to the second dressing 7. A pressure ring 9 is installed inside the second dressing 7. The side of the pressure ring 9 is connected to the inner wall of the second dressing 7. The pressure ring 9 and the mesh plate 12 can cooperate to clamp the dressing film 10.

[0031] When the internal pressure of the second dressing 7 of the present invention increases, the dressing film 10 can expand, thereby forming a filling area 11 in the holes of the mesh plate 12, so that the dressing film 10 can come into contact with human skin. Example 6:

[0032] A medical dressing and application procedure, such as Figures 1-8 As shown, the device includes a fan-shaped linkage positive and negative pressure device, a negative pressure adsorption device, and a medical dressing device. The negative pressure adsorption device includes a negative pressure cover 8. The medical dressing device includes a first dressing cover 5 and a second dressing cover 7. Several negative pressure covers 8 are connected to the side of the first dressing cover 5. The second dressing cover 7 is installed inside the first dressing cover 5. Both the second dressing cover 7 and the negative pressure cover 8 are shell structures with openings at the bottom. A dressing film 10 is installed at the opening end of the second dressing cover 7. The fan-shaped linkage positive and negative pressure device is installed on the upper part of the first dressing cover 5. The fan-shaped linkage positive and negative pressure device includes a cylindrical container 2. The cylindrical container 2 is a cylindrical shell structure with an open bottom. The other bottom surface of the cylindrical container 2 is connected to the first dressing cover 5. A rotating plate 24, a positive pressure device, a negative pressure device, and a quick unlocking locator are installed inside the cylindrical container 2. The rotating plate 24 can synchronously control the positive pressure device and the negative pressure device. The positive pressure device can increase the pressure inside the second dressing cover 7, and the negative pressure device can decrease the pressure inside the negative pressure cover 8. A handle plate 1 is connected to one side of the rotating plate 24.

[0033] Including the application procedure: ① When a person holds the handle plate 1, they push the opening of the second cover 7 and the opening of the negative pressure cover 8 of this device to match the human skin surface with a certain pressure. ② Use straps 30 to bind the device to the human body, so that the opening end of the second cover 7 and the opening end of the negative pressure cover 8 are in contact with the human skin under a certain pressure. ③ When the person rotates the handle 1 counterclockwise, the airbag 23 is compressed, so that the medicine in the airbag 23 is injected into the interior of the second dressing 7 under a certain pressure, thereby slightly increasing the pressure of the medicine inside the second dressing 7, thereby improving the penetration effect of the medicine components of the dressing film 10 on the human body. ④ At the same time, the piston 27 is pulled out, thereby generating negative pressure inside the arc tube 26, which reduces the air pressure inside the negative pressure cover 8, thus simultaneously allowing the negative pressure cover 8 to adhere to the human skin using negative pressure, achieving the cupping effect. ⑤ During the counterclockwise rotation of the rotating plate 24, the first inclined surface 18 of the first wedge block 17 cooperates with the second inclined surface 20 of different second wedge blocks 32, thereby pushing the U-shaped elastic plate 16 to be compressed, thus facilitating the smooth passage of the first wedge block 17 through different second wedge blocks 32; ⑥ After the rotating plate 24 has rotated, the U-shaped elastic plate 16 drives the first wedge block 17 to reset. At this time, the first straight surface 19 of the first wedge block 17 cooperates with the second straight surface 21 of the corresponding second wedge block 32, thereby preventing the fast unlocking locator from being unlocked uncontrollably. ⑦ When quick unlocking is required, personnel only need to pull the pull ring 31 to pull the dovetail block 15 out of the dovetail groove 14, which can quickly release the engagement between the first wedge block 17 and the second wedge block 32, thereby quickly releasing the lock on the rotating plate 24, making it convenient for personnel to reset the rotating plate 24, thereby releasing the negative pressure state inside the negative pressure cover 8 and the high pressure state inside the second cover 7, making it convenient for personnel to remove the device from the human skin.

[0034] By simply rotating handle 1, the operator can simultaneously compress the airbag 23, creating negative pressure within the arc-shaped tube 26. This simultaneously increases the pressure of the medicinal liquid inside the second dressing 7 and decreases the air pressure inside the negative pressure cover 8. This allows the negative pressure cover 8 to adhere to the skin, achieving a cupping effect. It also slightly increases the pressure of the medicinal liquid inside the second dressing 7, thereby enhancing the penetration of the medicinal components of the dressing film 10 into the body. After several negative pressure covers 8 simultaneously create negative pressure and adhere to the skin, combined with the pressure of the straps 30 binding the device to the body, it can push the lower opening of the second dressing 7 to engage with the skin at a certain pressure. This prevents excessive leakage of the medicinal liquid after pressurization, maintaining a certain pressure and improving the penetration of the medicinal liquid into the skin. When quick unlocking is required, personnel only need to pull the pull ring 31 to pull the dovetail block 15 out of the dovetail groove 14, which can quickly release the engagement between the first wedge block 17 and the second wedge block 32, thereby quickly releasing the lock on the rotating plate 24, making it convenient for personnel to reset the rotating plate 24.

[0035] This invention provides a clear and complete description of its technical solutions in conjunction with the accompanying drawings. Obviously, the described embodiments are only a portion, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., 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 the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. A medical dressing, characterized in that: The device includes a fan-shaped linkage positive and negative pressure device, a negative pressure adsorption device, and a medical dressing device. The negative pressure adsorption device includes a negative pressure cover (8). The medical dressing device includes a first dressing cover (5) and a second dressing cover (7). Several negative pressure covers (8) are connected to the side periphery of the first dressing cover (5). The second dressing cover (7) is installed on the inner side of the first dressing cover (5). Both the second dressing cover (7) and the negative pressure cover (8) are shell structures with openings at the bottom. A dressing film (10) is installed at the opening end of the second dressing cover (7). A fan-shaped linkage positive and negative pressure device is installed on the upper part of the first dressing cover (5). The negative pressure device includes a cylindrical container (2), which is a cylindrical shell structure with an open bottom. The other bottom surface of the cylindrical container (2) is connected to the first cover (5). The cylindrical container (2) is equipped with a rotating plate (24), a positive pressure device, a negative pressure device, and a quick unlocking locator. The rotating plate (24) can synchronously control the positive pressure device and the negative pressure device. The positive pressure device can increase the pressure inside the second cover (7), and the negative pressure device can reduce the pressure inside the negative pressure cover (8). One side of the rotating plate (24) is connected to a handle plate (1).

2. The medical dressing according to claim 1, characterized in that: The positive pressure device includes a pressure plate (22) and an air bladder (23). A bearing (25) is installed on one side of the cylindrical container (2). The outer ring of the bearing (25) is connected to the inner wall of the cylindrical container (2). The inner ring of the bearing (25) is connected to a rotating plate (24). The pressure plate (22) is connected to one side of the cylindrical container (2). An air bladder (23) is installed between the pressure plate (22) and the rotating plate (24). The two sides of the air bladder (23) are connected to the pressure plate (22) and the rotating plate (24) respectively. The negative pressure device includes an arc-shaped tube (26). The center point of the circle containing the central axis of the arc-shaped tube (26) coincides with the central axis of the bearing (25). A piston (27) is installed inside the arc-shaped tube (26). The side circumference of the piston (27) is connected to the arc-shaped tube (26). The inner wall side is fitted, and one side of the piston (27) is connected to the arc rod (29). One end of the arc rod (29) is connected to the rotating plate (24). The distance between one end of the rotating plate (24) and the airbag (23) and the central axis of the bearing (25) is H. The distance between the rotating plate (24) and the foam latex block of the arc rod (29) and the central axis of the bearing (25) is D. H is less than D. The inside of the airbag (23) is connected to one end of the second tube (4). The other end of the second tube (4) is connected to the inside of the second cover (7). The inside of the arc tube (26) is connected to one end of the first tube (3). The other end of the first tube (3) is connected to the inside of the negative pressure cover (8). One side of the rotating plate (24) is connected to the limiting plate (28).

3. The medical dressing according to claim 1, characterized in that: The quick unlocking locator includes a U-shaped elastic plate (16), one end of which is connected to a dovetail block (15), one side of which is connected to a pull ring (31), and the other side of which is connected to a first wedge block (17). A first inclined surface (18) is provided on one side of the first wedge block (17), and a first straight surface (19) is provided on the other side of the first wedge block (17). A dovetail groove (14) is opened on one side of the rotating plate (24), and the dovetail block (15) can be inserted into the dovetail groove (14). Several second wedge blocks (32) are connected to the inner wall of the cylindrical container (2). A second inclined surface (20) is provided on one side of the second wedge block (32), and a second straight surface (21) is provided on the other side of the second wedge block (32).

4. A medical dressing according to claim 1, characterized in that: The outer side of the negative pressure shield (8) is connected by a strap (30).

5. A medical dressing according to claim 1, characterized in that: The inner wall of the opening of the second dressing (7) is threaded, and a mesh plate (12) is installed in the opening of the second dressing (7). The outer side of the mesh plate (12) is exposed. The mesh plate (12) can be threaded to the second dressing (7). A pressure ring (9) is installed inside the second dressing (7). The side of the pressure ring (9) is connected to the inner wall of the second dressing (7). The pressure ring (9) and the mesh plate (12) can cooperate to clamp the dressing film (10).

6. The application procedure, characterized in that: Includes the following steps: ① The person holds the handle (1) and pushes the opening of the second cover (7) and the opening of the negative pressure cover (8) of this device to match the human skin surface with a certain pressure; ② Use straps (30) to bind the device to the human body so that the opening end of the second cover (7) and the opening end of the negative pressure cover (8) are in contact with the human skin with a certain pressure. ③ The person rotates the handle (1) counterclockwise. During this process, the airbag (23) is compressed, so that the medicine in the airbag (23) is injected into the interior of the second dressing (7) under a certain pressure, thereby slightly increasing the pressure of the medicine inside the second dressing (7) and thus improving the penetration effect of the medicine components of the dressing film (10) on the human body. ④ At the same time, the piston (27) is pulled out, thereby generating negative pressure inside the arc tube (26), thereby reducing the air pressure inside the negative pressure cover (8), thus simultaneously enabling the negative pressure cover (8) to be adsorbed onto the human skin by negative pressure, achieving the cupping effect; ⑤ During the counterclockwise rotation of the rotating plate (24), the first inclined surface (18) of the first wedge block (17) cooperates with the second inclined surface (20) of different second wedge blocks (32), thereby pushing the U-shaped elastic plate (16) to be compressed, thus facilitating the smooth passage of the first wedge block (17) through different second wedge blocks (32). ⑥ After the rotating plate (24) has finished rotating, the U-shaped elastic plate (16) drives the first wedge block (17) to reset. At this time, the first straight surface (19) of the first wedge block (17) cooperates with the second straight surface (21) of the corresponding second wedge block (32), thereby preventing the fast unlocking locator from being unlocked uncontrollably. ⑦ When quick unlocking is required, personnel only need to pull the pull ring (31) to pull the dovetail block (15) out of the dovetail groove (14), which can quickly release the engagement between the first wedge block (17) and the second wedge block (32), thereby quickly releasing the lock on the rotating plate (24), making it convenient for personnel to reset the rotating plate (24), thereby releasing the negative pressure state inside the negative pressure cover (8) and the high pressure state inside the second cover (7), making it convenient for personnel to remove the device from the human skin.

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