Preoperative skin cleaning and disinfecting device for general surgery department

Abstract

The preoperative skin cleaning and disinfecting device comprises a disinfecting and cleaning head, a fixed inner cavity is formed in the bottom end of the disinfecting and cleaning head, supporting guide rails are symmetrically arranged on the edges of the front end and the rear end of the inner wall of the fixed inner cavity, and a first guide groove is formed in one end of the inner wall of each supporting guide rail; a movable part is movably installed in the first guide groove, one end of the movable part extends into the fixed inner cavity to be fixedly connected with connecting plates, and adjusting rollers are rotationally installed at the bottoms of the two connecting plates which are symmetrical front and back. By adjusting the distance between the two adjusting rollers, the skin shape requirements of different positions of a human body can be met in a targeted mode, the elastic disinfection belt can stretch and deform along with the shape of skin wrinkles, the soft disinfection brush on the outer surface of the elastic disinfection belt can penetrate into wrinkles gaps, and disinfection dead corners caused by the fact that existing fixed-shape equipment cannot be attached are avoided; and compared with the prior art, the disinfection thoroughness is remarkably improved.

Description

Technical Field

[0001] This invention relates to surgical techniques, specifically to a preoperative skin cleaning and disinfection device for general surgery. Background Technology

[0002] General surgery refers to surgical treatments for various surgical conditions in the abdomen, limbs, neck, breast, and other areas of the human body (such as wound repair, tumor resection, infection debridement, and organ reconstruction). Its core requirement is to be performed in a sterile environment to reduce the risk of postoperative infection and ensure patient recovery. Preoperative skin cleaning and disinfection is a crucial pre-treatment step in general surgery. It involves the combined use of physical cleaning (removing dust, keratin, and oil from the skin surface) and chemical disinfection (killing or inhibiting pathogenic microorganisms on the skin surface) to sterilize the surgical area and surrounding skin, creating a clean and sterile skin environment. This provides a fundamental guarantee for the establishment of surgical incisions and the conduct of surgical procedures, and is one of the core processes for preventing surgical site infection and ensuring surgical safety.

[0003] In current preoperative skin cleaning and disinfection procedures in general surgery, the natural differences in skin morphology and condition across different surgical areas mean that some areas (such as the groin, neck, and joint flexion points) are prone to skin folds due to changes in body position or physiological structure, while other areas (such as the navel, deep armpits, and depressions along the spine) have natural skin depressions. However, the execution components of existing cleaning and disinfection equipment (such as fixed-shape brushes, flat sponges, and cylindrical spray heads) are mostly rigid or fixed structures, unable to adapt to these irregular skin surfaces. This makes it difficult for disinfectant to evenly cover the gaps in skin folds and the bottoms of depressions, creating disinfection blind spots. Consequently, overall skin disinfection is incomplete and inadequate, and residual pathogens may invade the incision during surgery, adversely affecting the overall safety of subsequent surgical procedures. Furthermore, this lack of adaptability reduces the disinfection and cleaning effect on skin in different locations, making it difficult for existing equipment to meet the needs of diverse surgical scenarios in general surgery (such as surgeries on different body parts and patients of different body types), significantly increasing the limitations of disinfection equipment use. Summary of the Invention

[0004] The purpose of this invention is to provide a preoperative skin cleaning and disinfection device for general surgery, in order to solve the problem that existing cleaning and disinfection devices cannot adapt to irregular skin (folds, depressions) in different parts of the human body, resulting in incomplete disinfection and limited use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a preoperative skin cleaning and disinfection device for general surgery, comprising a disinfection and cleaning head, a fixed inner cavity at the bottom end of the disinfection and cleaning head, and symmetrically arranged support guide rails at both ends of the inner wall of the fixed inner cavity. A first guide groove is opened at one end of the inner wall of the support guide rail, and a movable component is movably installed inside the first guide groove. One end of the movable component extends into the fixed inner cavity and is fixedly connected to a connecting plate. Adjusting rollers are rotatably installed at the bottom of the two symmetrical connecting plates, and a support roller is rotatably installed at the top center of the fixed inner cavity. An elastic disinfection strip is sleeved on the outer surface of both the adjusting roller and the support roller, and disinfection brushes are fixedly installed at equal intervals on the outer surface of the elastic disinfection strip.

[0006] The disinfection and cleaning head is provided with an upper connection port at the middle of its top, and a liquid spraying component is installed inside the upper connection port. A dosing mechanism is provided above the disinfection and cleaning head for adding disinfectant liquid to the fixed inner cavity.

[0007] The dosing mechanism includes a medicine storage tank, which is positioned above the disinfection and cleaning head. A fixed handle is fixedly installed on the top of the outer surface of the medicine storage tank. A lower connection port is fixedly installed in the middle of the bottom end of the medicine storage tank. The lower connection port is embedded in the outer surface of the upper connection port. A partition plate is fixedly installed in the middle of the inner wall of the medicine storage tank. A sealing baffle is rotatably installed on the bottom of the partition plate near the opening of the lower connection port.

[0008] A connecting structure is also provided between the disinfection cleaning head and the medicine storage tank to fix the disinfection cleaning head and the medicine storage tank together.

[0009] Furthermore, the connection structure includes several limiting members, which are symmetrically and fixedly installed on both sides of the bottom surface of the medicine storage tank. A limiting hole is opened through one side of the limiting member. A limiting body is fixedly installed on the upper surface of the disinfection cleaning head at a position symmetrical to the limiting member. A fixing groove is opened on one side of the limiting body. A spring is provided on one side of the inner wall of the fixing groove. A limiting rod is movably installed on one side of the spring extending to the outside of the limiting body.

[0010] Furthermore, an outer adjustment frame is movably provided on the outer surface of the disinfection and cleaning head. Two guide grooves are symmetrically opened on both sides of the inner wall of the outer adjustment frame. The other end of the movable part extends through the first guide groove to the outside of the outer adjustment frame. Limiting screws are threadedly connected to both sides of the outer adjustment frame. A fixing block is fixedly installed on one side of the limiting screw. One side of the fixing block abuts against the inclined surfaces on both sides of the outer surface of the disinfection and cleaning head.

[0011] Furthermore, a first driving unit is provided at the middle of one end of the support roller, extending to the outside of the disinfection and cleaning head, and the output end of the first driving unit is connected to the central support shaft of the support roller.

[0012] Furthermore, a second driving unit is provided at the top of one end of the sealing baffle extending to the outside of the medicine storage tank, and the output end of the second driving unit is connected to the central support shaft of the sealing baffle.

[0013] Furthermore, the upper surface of the medicine storage tank is symmetrically provided with adjustment buttons, which are used to control the swing direction of the sealing baffle.

[0014] Furthermore, symmetrical dosing connectors are provided at the top of the outer surface of the medicine storage tank, and the dosing connectors are connected to the inside of the medicine storage tank to add the medicine liquid into the medicine storage tank.

[0015] Furthermore, the outer diameter of the limiting rod is smaller than the inner diameter of the limiting hole, one side of the limiting rod extends into the interior of the limiting hole, and the limiting hole and the limiting rod engage with each other.

[0016] Compared with the prior art, the preoperative skin cleaning and disinfection device for general surgery provided by the present invention has the following beneficial effects:

[0017] 1. This invention adjusts the distance between two adjusting rollers to specifically adapt to the skin shape requirements of different parts of the human body. At the same time, the elastic disinfection belt is made of medical-grade elastic rubber material, which can stretch and deform with the shape of skin folds (such as the groin and neck joints). The soft disinfection brush on its outer surface can penetrate deep into the folds and gaps, avoiding the disinfection dead corners caused by the inability of existing fixed-shape equipment to fit properly. This ensures that both the skin surface and deep crevices can be cleaned and disinfected, significantly improving the thoroughness of disinfection compared with existing technologies.

[0018] 2. This invention achieves rapid adjustment and stable fixation of the roller spacing through the coordinated structure of the outer adjustment frame, the limiting screw, and the movable parts. The entire process can be completed with one hand without the need for additional tools, avoiding the complex process of turning multiple screws and disassembling components when adjusting existing equipment. Compared with the existing technology, it significantly shortens the adjustment time and improves the adjustment efficiency and ease of use of the device.

[0019] 3. This invention achieves quick assembly and disassembly of the disinfection cleaning head and the medicine storage tank through a connection structure composed of a limiting component, a limiting body, a spring, and a limiting rod. The precise fit between the lower and upper connecting ports ensures the airtightness of the medicine delivery. This design facilitates individual cleaning and disinfection of components after surgery, preventing the growth of bacteria from residual medicine. It also facilitates the replacement of damaged individual components without the need for complete equipment scrapping. Compared with existing technologies, this significantly improves the reusability of the equipment and reduces operating costs.

[0020] 4. The medicine storage tank of the present invention is divided into two independent chambers by a partition plate, which can respectively hold skin cleaning solution and medical disinfectant. With the connection of the lower port to the medicine spraying component, the "cleaning and disinfection" operation can be completed in one go. There is no need for staff to use one medicine solution for cleaning first and then change equipment or pour out medicine solution for disinfection. This reduces the number of operation steps and avoids the risk of contamination that may occur during the medicine solution switching process. Compared with the prior art, it improves the practicality of disinfection and cleaning, while shortening the preoperative preparation time and improving the overall operation efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the elastic disinfection belt structure provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the adjusting roller provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of a medicine storage tank provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the limiting body structure provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the limiting member structure provided in an embodiment of the present invention;

[0028] Figure 7 Provided for embodiments of the present invention Figure 3 A magnified schematic diagram of the structure of part A in the diagram;

[0029] Figure 8 Provided for embodiments of the present invention Figure 4 A magnified schematic diagram of part B.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Disinfection cleaning head; 2. Fixed inner cavity; 3. Support guide rail; 4. No. 1 guide groove; 5. Movable part; 6. Connecting plate; 7. Adjusting roller; 8. Support roller; 9. Elastic disinfection belt; 10. Disinfection brush; 11. First drive unit; 12. Upper connection port; 13. Medicine spraying assembly; 14. Medicine storage tank; 15. Lower connection port; 16. Divider plate; 17. Sealing baffle; 18. Second drive unit; 19. Adjustment button; 20. Medicine dispensing connector; 21. Fixed handle; 22. Limiting component; 23. Limiting hole; 24. Limiting body; 25. Fixed groove; 26. Spring; 27. Limiting rod; 28. Outer adjusting frame; 29. ​​No. 2 guide groove; 30. Limiting screw; 31. Fixed block. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] As attached Figure 1 To be continued Figure 8 As shown:

[0034] Example 1:

[0035] This invention provides a preoperative skin cleaning and disinfection device for general surgery, including a disinfection and cleaning head 1. A fixed inner cavity 2 is opened at the bottom of the disinfection and cleaning head 1. Support rails 3 are symmetrically arranged at both ends of the inner wall of the fixed inner cavity 2. A first guide groove 4 is opened at one end of the inner wall of the support rail 3. A movable part 5 is movably installed inside the first guide groove 4. One end of the movable part 5 extends into the interior of the fixed inner cavity 2 and is fixedly connected to a connecting plate 6. Adjusting rollers 7 are rotatably installed at the bottom of the two symmetrical connecting plates 6. A support roller 8 is rotatably installed at the middle position of the top of the fixed inner cavity 2. A first drive part 11 is provided at the middle of one end of the support roller 8 extending to the outside of the disinfection and cleaning head 1. The first drive part 11 is a micro motor. The output end of the first drive part 11 is connected to the central support shaft of the support roller 8. An elastic disinfection belt 9 is sleeved on the outer surface of both the adjusting roller 7 and the support roller 8. Disinfection brushes 10 are fixedly installed at equal intervals on the outer surface of the elastic disinfection belt 9.

[0036] The disinfection and cleaning head 1 has an upper connection port 12 at the middle of its top. The upper connection port 12 is equipped with a liquid spraying component 13. The disinfection and cleaning head 1 is equipped with a dosing mechanism above it for adding disinfectant liquid to the fixed inner cavity 2.

[0037] The dosing mechanism includes a storage tank 14, which is positioned above the disinfection and cleaning head 1. A fixed handle 21 is fixedly installed on the top of the outer surface of the storage tank 14. A lower connection port 15 is fixedly installed in the middle of the bottom end of the storage tank 14. The lower connection port 15 is snapped into the outer surface of the upper connection port 12. A partition plate 16 is fixedly installed in the middle of the inner wall of the storage tank 14. A sealing baffle 17 is rotatably installed at the bottom of the partition plate 16 near the opening of the lower connection port 15.

[0038] A second drive unit 18 is provided at the top of one end of the sealing baffle 17, extending to the outside of the medicine storage tank 14. The output end of the second drive unit 18 is connected to the central support shaft of the sealing baffle 17. The second drive unit 18 is a self-locking servo motor.

[0039] The upper surface of the medicine storage tank 14 is symmetrically provided with adjustment buttons 19, which are used to control the swing direction of the sealing baffle 17;

[0040] A dosing connector 20 is symmetrically arranged at the top of the outer surface of the medicine storage tank 14. The dosing connector 20 is connected to the inside of the medicine storage tank 14 and is used to add the medicine liquid into the medicine storage tank 14.

[0041] A connecting structure is also provided between the disinfection cleaning head 1 and the medicine storage tank 14 to fix the disinfection cleaning head 1 and the medicine storage tank 14 to each other.

[0042] Working principle: First, during the preoperative preparation stage, the staff injects skin cleaning solution and medical disinfectant into the two independent chambers divided by the partition plate 16 of the medicine storage tank 14 through the two drug filling connectors 20 on the top of the outer surface of the medicine storage tank 14, ensuring that the two solutions do not mix and that the injection volume meets the disinfection requirements of a single surgery; then, the connection structure between the disinfection cleaning head 1 and the medicine storage tank 14 is used to fix the two into one, so that the lower connection port 15 at the bottom of the medicine storage tank 14 is precisely embedded in the outer surface of the upper connection port 12 at the top of the disinfection cleaning head 1, ensuring that the medicine spraying component 13 is aligned with the outlet end of the lower connection port 15 to prevent medicine leakage;

[0043] Next, based on the skin morphology of the patient's surgical area (such as flat abdominal skin, concave navel, and densely folded groin), the staff predicts the required disinfection and bonding shape, and adjusts the distance between the two adjusting rollers 7 through the subsequent outer adjusting frame 28 (this adjustment step can be combined with the operation of Example 3) so that the elastic disinfection belt 9 forms an initial arc that fits the target area.

[0044] Then, the staff member holds the fixed handle 21 on the medicine storage tank 14 with one hand, presses the adjustment button 19 on the upper surface of the medicine storage tank 14, controls the second drive unit 18 (self-locking servo motor) to drive the two sets of sealing baffles 17 to swing synchronously, and opens the outlets of the two chambers of the medicine storage tank 14; the two kinds of medicine liquids flow into the upper connection port 12 through the lower connection port 15 under the action of gravity, and after being atomized by the internal medicine liquid spraying component 13, they are evenly sprayed onto the disinfection brush 10 on the outer surface of the elastic disinfection belt 9, ensuring that each disinfection brush 10 absorbs a sufficient amount and a balanced ratio of cleaning liquid and disinfectant liquid;

[0045] At the same time, the staff started the first drive unit 11 (micro motor), whose output end drove the support roller 8 to rotate at a constant speed around the central support shaft; since the elastic disinfection belt 9 is simultaneously sleeved on the outer surface of the support roller 8 and the two adjusting rollers 7, the rotation of the support roller 8 drives the elastic disinfection belt 9 to rotate synchronously through friction, and the adjusting rollers 7 rotate passively accordingly, always keeping the elastic disinfection belt 9 taut, and avoiding wrinkles that affect the disinfection effect.

[0046] Finally, the staff slowly moved the elastic disinfection band 9, which was attached to the patient's surgical area skin, while the disinfection brush 10, in its cyclical motion, removed dust, dead skin cells, and oil from the skin surface through physical friction, and evenly applied the two types of absorbed disinfectant solutions to the skin surface and deep crevices. The medical-grade elastic rubber material of the elastic disinfection band 9 can stretch and deform according to the shape of the skin, conforming to the contours of concave areas such as the navel. The disinfection brush 10 can penetrate deep into the folds and crevices of areas such as the groin and neck joints, thoroughly removing disinfection dead spots and achieving integrated "cleaning and disinfection" operation.

[0047] Example 2:

[0048] This embodiment is basically the same as the previous embodiment, except that the connection structure includes several limiting members 22. The limiting members 22 are symmetrically fixedly installed on both sides of the bottom surface of the medicine storage tank 14. A limiting hole 23 is opened through one side of the limiting member 22. A limiting body 24 is fixedly installed on the upper surface of the disinfection and cleaning head 1 at a position symmetrical to the limiting member 22. A fixing groove 25 is opened on one side of the limiting body 24. A spring 26 is provided on one side of the inner wall of the fixing groove 25. A limiting rod 27 is movably installed on one side of the spring 26 to the outside of the limiting body 24.

[0049] The outer diameter of the limiting rod 27 is smaller than the inner diameter of the limiting hole 23. One side of the limiting rod 27 extends into the interior of the limiting hole 23, and the limiting hole 23 and the limiting rod 27 are engaged with each other.

[0050] Working principle: First, when the staff assembles the device, they hold the medicine storage tank 14 and align the lower connection port 15 at the bottom of the tank with the upper connection port 12 at the top of the disinfection and cleaning head 1. They then slowly press the medicine storage tank 14 down so that the limiting parts 22 on both sides of the bottom surface of the medicine storage tank 14 are gradually fitted onto the corresponding limiting body 24 on the upper surface of the disinfection and cleaning head 1, ensuring that the lower connection port 15 and the upper connection port 12 are precisely aligned.

[0051] Next, during the pressing process, the inner wall of the limiting member 22 contacts and squeezes the outer end of the limiting rod 27. The limiting rod 27 is compressed into the fixing groove 25 of the limiting body 24 under pressure, and at the same time, the spring 26 on one side of the inner wall of the fixing groove 25 is compressed. The spring 26 stores elastic potential energy. When the limiting hole 23 on the limiting member 22 is completely aligned with the position of the limiting rod 27, the spring 26 releases elastic potential energy, pushes the limiting rod 27 outward, and accurately inserts it into the limiting hole 23. Through the tight engagement of the limiting rod 27 and the limiting hole 23, the medicine storage tank 14 and the disinfection cleaning head 1 are firmly fixed. At this time, the lower connection port 15 and the upper connection port 12 are tightly fitted, and there is no gap for leakage of medicine.

[0052] Then, when it is necessary to disassemble, clean or replace parts after the operation, the staff presses the exposed end of the limiting rod 27 with their fingers. The pressure applied causes the limiting rod 27 to overcome the elastic force of the spring 26 and retract into the fixing groove 25 until it is completely disengaged from the locking state with the limiting hole 23, and the fixed relationship between the medicine storage tank 14 and the disinfection cleaning head 1 is released.

[0053] Finally, the staff can smoothly lift the medicine storage tank 14 upwards, so that the lower connection port 15 can be smoothly separated from the upper connection port 12. The limiting part 22 will also separate from the limiting body 24 at the same time, completing the quick disassembly of the medicine storage tank 14 and the disinfection cleaning head 1. After disassembly, the staff can put the disinfection cleaning head 1 (including the elastic disinfection band 9, disinfection brush 10 and other parts that come into direct contact with the skin) into the medical disinfection equipment for thorough cleaning and disinfection, so as to avoid the growth of bacteria due to residual medicine. If the disinfection cleaning head 1 is damaged, only a new cleaning head needs to be replaced. The medicine storage tank 14 can be reused, reducing the cost of equipment use.

[0054] Example 3:

[0055] This embodiment is basically the same as the previous embodiment, except that an outer adjustment frame 28 is movably provided on the outer surface of the disinfection and cleaning head 1. Two guide grooves 29 are symmetrically opened on both sides of the inner wall of the outer adjustment frame 28. The other end of the movable part 5 extends through the first guide groove 4 to the outside of the outer adjustment frame 28. Limiting screws 30 are threadedly connected to both sides of the outer adjustment frame 28. A fixing block 31 is fixedly installed on one side of the limiting screw 30. One side of the fixing block 31 abuts against the inclined surfaces on both sides of the outer surface of the disinfection and cleaning head 1.

[0056] Working principle: First, the staff determines the required spacing of the adjusting rollers 7 based on the skin morphology of the patient's surgical area. For recessed areas such as the navel and deep armpits, or densely wrinkled areas such as the groin and neck joints, the spacing of the adjusting rollers 7 needs to be reduced to make the elastic disinfection band 9 form a compact arc, which is convenient for penetrating into the gaps. For large areas of flat skin such as the abdomen and back, the spacing needs to be increased to achieve wide and efficient disinfection.

[0057] Next, the staff first rotates the limiting screws 30 on both sides of the outer adjustment frame 28 counterclockwise. The limiting screws 30 drive the fixing block 31 on one side to move away from the outer surface of the disinfection and cleaning head 1. The clamping force between the fixing block 31 and the inclined surface of the disinfection and cleaning head 1 disappears, the outer adjustment frame 28 is unlocked and can slide freely along the outer surface of the disinfection and cleaning head 1.

[0058] Then, the staff holds the outer adjustment frame 28 and pushes it along the axis of the disinfection cleaning head 1. Since one end of the movable part 5 extends into the fixed inner cavity 2 and is fixed to the connecting plate 6, and the other end extends through the first guide groove 4 to the outside of the outer adjustment frame 28, and the movable part 5 slides in cooperation with the second guide groove 29 on the inner wall of the outer adjustment frame 28, the movement of the outer adjustment frame 28 will simultaneously drive the movable part 5 to slide smoothly along the first guide groove 4 of the support guide rail 3. The movable part 5 drives the two adjusting rollers 7 to move closer or further away from each other through the connecting plate 6, so as to accurately realize the spacing adjustment. The dual guiding effect of the first guide groove 4 and the second guide groove 29 prevents the movable part 5 from deviating when sliding, ensuring that the adjusting rollers 7 move smoothly and the elastic disinfection belt 9 always remains taut.

[0059] Finally, once the spacing of the adjusting rollers 7 reaches the target size, the operator rotates the limiting screw 30 clockwise, causing the fixing block 31 to move towards the inclined surface of the outer surface of the disinfection cleaning head 1 until the fixing block 31 firmly presses against the inclined surface. Through the friction between the fixing block 31 and the inclined surface, the outer adjusting frame 28 is securely fixed in the current position. Then, the spacing of the adjusting rollers 7 is locked by the movable part 5 to prevent the spacing from shifting due to equipment movement or vibration during the disinfection process. Subsequently, the operator starts the device to perform the disinfection operation. The adjusted spacing of the adjusting rollers 7 allows the elastic disinfection belt 9 to accurately adapt to the target skin shape. Combined with its elasticity, the disinfection brush 10 can fully cover the skin surface and deep crevices, ensuring thorough disinfection.

[0060] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A preoperative skin cleaning and disinfection device for general surgery, comprising a disinfection and cleaning head (1), characterized in that, The disinfection cleaning head (1) has a fixed inner cavity (2) at the bottom. The inner walls of the fixed inner cavity (2) are symmetrically provided with support rails (3) at both ends. A first guide groove (4) is provided at one end of the inner wall of the support rail (3). A movable part (5) is movably installed inside the first guide groove (4). One end of the movable part (5) extends into the fixed inner cavity (2) and is fixedly connected to a connecting plate (6). Adjusting rollers (7) are rotatably installed at the bottom of the two symmetrical connecting plates (6). A support roller (8) is rotatably installed at the middle position of the top of the fixed inner cavity (2). An elastic disinfection belt (9) is sleeved on the outer surface of the adjusting roller (7) and the support roller (8). Disinfection brushes (10) are fixedly installed at equal intervals on the outer surface of the elastic disinfection belt (9). The disinfection and cleaning head (1) has an upper connection port (12) at the middle of its top. A liquid spraying component (13) is installed inside the upper connection port (12). A dosing mechanism is provided above the disinfection and cleaning head (1) for adding disinfectant liquid to the inside of the fixed inner cavity (2). The dosing mechanism includes a medicine storage tank (14), which is located above the disinfection and cleaning head (1). A fixed handle (21) is fixedly installed on the top of the outer surface of the medicine storage tank (14). A lower connection port (15) is fixedly installed in the middle of the bottom end of the medicine storage tank (14). The lower connection port (15) is embedded in the outer surface of the upper connection port (12). A partition plate (16) is fixedly installed in the middle of the inner wall of the medicine storage tank (14). A sealing baffle (17) is rotatably installed at the bottom of the partition plate (16) near the opening of the lower connection port (15). A connecting structure is also provided between the disinfection cleaning head (1) and the medicine storage tank (14) for fixing the disinfection cleaning head (1) and the medicine storage tank (14) to each other.

2. The preoperative skin cleaning and disinfection device for general surgery according to claim 1, characterized in that, The connection structure includes several limiting members (22). The limiting members (22) are symmetrically fixedly installed on both sides of the bottom surface of the medicine storage tank (14). A limiting hole (23) is opened through one side of the limiting member (22). A limiting body (24) is fixedly installed on the upper surface of the disinfection cleaning head (1) at a position symmetrical to the limiting member (22). A fixing groove (25) is opened on one side of the limiting body (24). A spring (26) is provided on one side of the inner wall of the fixing groove (25). A limiting rod (27) is movably installed on one side of the spring (26) extending to the outside of the limiting body (24).

3. The preoperative skin cleaning and disinfection device for general surgery according to claim 1, characterized in that, The outer surface of the disinfection and cleaning head (1) is movably provided with an outer adjustment frame (28). The inner walls of the outer adjustment frame (28) are symmetrically provided with two guide grooves (29). The other end of the movable part (5) extends through the first guide groove (4) to the outside of the outer adjustment frame (28). The outer adjustment frame (28) is threadedly connected to the two sides of the outer adjustment frame (28). A fixing block (31) is fixedly installed on one side of the fixing block (30). One side of the fixing block (31) abuts against the inclined surfaces on both sides of the outer surface of the disinfection and cleaning head (1).

4. The preoperative skin cleaning and disinfection device for general surgery according to claim 1, characterized in that, The support roller (8) extends from the middle of one end to the outside of the disinfection and cleaning head (1) and is provided with a first drive unit (11). The output end of the first drive unit (11) is connected to the central support shaft of the support roller (8).

5. A preoperative skin cleaning and disinfection device for general surgery according to claim 1, characterized in that, The top of one end of the sealing baffle (17) extends to the outside of the medicine storage tank (14) and is provided with a second driving part (18). The output end of the second driving part (18) is connected to the central support shaft of the sealing baffle (17).

6. A preoperative skin cleaning and disinfection device for general surgery according to claim 1, characterized in that, The upper surface of the medicine storage tank (14) is symmetrically provided with adjustment buttons (19), which are used to control the swing direction of the sealing baffle (17).

7. A preoperative skin cleaning and disinfection device for general surgery according to claim 1, characterized in that, The medicine storage tank (14) is symmetrically provided with a medicine addition connector (20) at the top of its outer surface. The medicine addition connector (20) is connected to the inside of the medicine storage tank (14) and is used to add the medicine liquid into the medicine storage tank (14).

8. A preoperative skin cleaning and disinfection device for general surgery according to claim 2, characterized in that, The outer diameter of the limiting rod (27) is smaller than the inner diameter of the limiting hole (23). One side of the limiting rod (27) extends into the limiting hole (23), and the limiting hole (23) and the limiting rod (27) engage with each other.

Images