Screw disinfection device for fracture surgery

Abstract

The invention discloses a screw disinfection device for fracture surgery, and belongs to the technical field of disinfection and storage of medical supplies, the screw disinfection device for fracture surgery comprises a disinfection placement box for storing disinfection bone screws and a sealed antibacterial top sealing cover, two symmetrically-arranged pressure sealing structures used for pressing and sealing are arranged between the top sealing cover and the two sides of the disinfection containing box, a containing jacking structure used for slightly jacking bone nails to facilitate clamping is arranged on the inner side of the disinfection containing box, and a V-shaped guide plate is fixedly connected to the position, located below the containing jacking structure, of the inner wall of the disinfection containing box. According to the bone nail disinfection device, by arranging the placing and jacking structure, a to-be-used bone nail after disinfection can be slightly jacked by 2-2.5 mm, a worker can conveniently clamp the bone nail, the bone nails with different lengths can be jacked to the same height, the adaptability is high, meanwhile, the bone nails can be disinfected and killed without dead corners through vortex high-temperature liquid, and disinfection and killing are more thorough.

Description

Technical Field

[0001] The present invention belongs to the technical field of disinfection and storage of medical supplies, and particularly relates to a screw disinfection device for fracture surgery. Background Art

[0002] Orthopedic screws are commonly used internal fixation instruments in orthopedic surgeries, and are used for fracture fixation, bone fragment reduction, joint fusion, etc. In the prior art, orthopedic screws can be classified by function into: lag screws, positional screws, locking screws, and anchor screws; and by structure into: fully threaded screws, partially threaded screws, cannulated screws, cortical bone screws, and cancellous bone screws. At the same time, it includes some screws with special designs, such as: Herbert screws, dynamic hip screws (DHS), and pedicle screws.

[0003] In order to quickly access different types of fixation, bone nails need to be concentrated and stored in a storage box, and then retrieved in a sterile environment after disinfection. In the prior art, some fixations do not have a bolt head or the bolt head is relatively thin, which is not convenient to retrieve with tweezers after being placed in the storage box, resulting in low retrieval efficiency. Moreover, in the prior art, bone nails cannot be directly disinfected in the storage box, so it is impossible to achieve 100% sterility, and it is easy to cause incomplete disinfection and infection. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a storage device that can disinfect bone nails by lifting them.

[0005] The technical solution adopted to solve the above technical problem is: a screw disinfection device for fracture surgery, including a disinfection placement box for storing disinfected bone nails and a top sealing cover for sealing and preventing bacteria. Between the two sides of the top sealing cover and the disinfection placement box, there are two symmetrically arranged pressure sealing structures for applying pressure and sealing.

[0006] Through the above technical solution, the disinfection placement box can store bone nails to be disinfected and provide a storage space for different types of bone nails. The top sealing cover can seal the disinfection placement box, and a high-pressure and high-temperature environment can be formed in the disinfection placement box during heat disinfection to disinfect the bone nails fully and effectively. Moreover, when not in use after disinfection, it is sealed to prevent the bone nails from being contaminated by a bacteria-containing environment.

[0007] Inside the disinfection placement box, there is a placement lifting structure for slightly lifting the bone nails to facilitate clamping.

[0008] Through the above technical solution, slightly lifting the bone nails can facilitate medical staff to quickly and effectively clamp the required bone nails during use, and avoid the influence of a thin bolt head on clamping.

[0009] A V-shaped guide plate is fixedly connected to the inner wall of the disinfection placement box at a position below the placement and lifting structure. Two symmetrically arranged electric heating plates are fixedly connected to the surface of the V-shaped guide plate in an inlaid manner. A stirring wheel for stirring to form a vortex is rotatably connected through the bottom of the V-shaped guide plate.

[0010] Through the above technical solution, the V-shaped guide plate and the stirring wheel cooperate to make the high-temperature liquid form a strong vortex in the disinfection placement box, so that the high-temperature liquid fully acts on the fixation, making the fixation disinfection and sterilization more thorough. Moreover, the vortex can act on the disinfection placement box to continue disinfecting the inside of the disinfection placement box, avoiding the residual bacteria and microorganisms in the disinfection placement box from contaminating the bone nails. The liquid in the disinfection placement box can be heated through the electric heating plate.

[0011] Further, the placement and lifting structure includes a fixed placement plate that is slidably connected to the inner wall of the disinfection placement box up and down. The fixed placement plate is partitioned, and the size of the through holes is adaptively set according to the fixed size. A bone nail lifting plate is arranged below the fixed placement plate. Partition lifting plates for lifting the bone nails are arranged on the upper surface of the bone nail lifting plate at positions below each partition of the fixed placement plate. A plurality of layers of cushioning and adjusting plates are fixedly connected by glue between the lower surface of the corresponding partition lifting plate and the upper part of the bone nail lifting plate.

[0012] Through the above technical solution, the fixed placement plate can place the bone nails to be used and disinfected, and the surface of the fixed placement plate is partitioned. The aperture of the through holes on the surface of each area is inconsistent, so as to adapt to bone nails of different sizes. The bone nail lifting plate rebounds after the top cover is opened, which can realize slightly bouncing the fixation, facilitating the clamping of bone nails with thinner bolt heads. The reason for the partition lifting plates is that the bone nail sizes in each area are different, that is, the lengths are different. By using the cushioning and adjusting plates to support each partition lifting plate, it can adapt to bone nails of different lengths, so that although the bone nail sizes are different, they can be lifted a slight distance, and this distance is 2 - 2.5 millimeters, which is convenient for clamping the bone nails.

[0013] Further, a plurality of uniformly distributed second return springs are fixedly connected to both sides of the lower surface of the fixed placement plate at positions of the bone nail lifting plate. One end of each of the plurality of second return springs away from the fixed placement plate is fixedly connected to the step position of the inner wall of the disinfection placement box. Two symmetrically arranged linkage guiding sliding rods are fixedly connected to both sides of the upper surface of the bone nail lifting plate. Two symmetrically arranged first return springs are fixedly connected between the upper surface of the bone nail lifting plate and the lower surface of the fixed placement plate. The two first return springs are concentric with the corresponding linkage guiding sliding rods.

[0014] Through the above technical solution, after the top sealing cover is opened and no longer presses the downward control slider, the downward control slider resets under the action of the second return spring, pulling the bone nail away from the surface of the disinfection liquid. Then, under the action of the residual heat of the bone nail, the disinfection liquid on the surface of the bone nail dries, and under the action of the bone nail lifting plate and the partition lifting plate, the bone nail is lifted, and the linkage guide rod enables the bone nail lifting plate to slide up and down with limited position to avoid shaking of the bone nail lifting plate.

[0015] Further, limiting chutes are provided at both sides of the upper surface of the disinfection placement box. The inner walls of the two limiting chutes are slidably connected with downward control sliders. The surface of the downward control slider is inclined. The downward control slider is slidably connected with the surface of the fixed placement plate. Two symmetrically arranged downward fixing blocks are fixedly connected to both sides of the lower surface of the top sealing cover, and the lower surface of the downward fixing block is inclined.

[0016] Through the above technical solution, the limiting chutes can limit the downward control slider. When the top sealing cover is closed, the downward fixing block will be pressed down, so that the downward control slider is pressed down, and then the fixed placement plate can be pressed down to press the bone nail into the disinfection liquid for disinfection.

[0017] Further, a lower pressing plate is arranged above the two linkage guide rods. A linkage guide rod is fixedly connected to the middle of the upper surface of the two lower pressing plates. The end of the linkage guide rod far away from the lower pressing plate is fixedly connected to the inner side of the downward fixing block.

[0018] Through the above technical solution, when closing the top sealing cover, the lower pressing plate can press the linkage guide rod, so that the bone nail lifting plate and the partition lifting plate are pressed down, and then the bone nail is fully pressed into the disinfection liquid for sterilization and disinfection.

[0019] Further, a reduction motor is fixedly connected to the inner side of the disinfection placement box below the V-shaped guide plate through a support frame. The driving end of the reduction motor is fixedly connected with a power shaft. The power shaft is rotatably connected through the bottom of the V-shaped guide plate and fixedly connected with the bottom of the stirring wheel.

[0020] Through the above technical solution, the reduction motor is used as a power source, so that the reduction motor provides power for the rotation of the stirring wheel, making the stirring wheel rotate to form a vortex in the disinfection placement box, and the V-shaped guide plate is arranged in a V shape, which is convenient for forming a vortex.

[0021] Further, a transfer handle for transfer is fixedly connected to the top of the top sealing cover.

[0022] Through the above technical solution, after closing the top sealing cover, it can be transferred to the required position by holding the transfer handle.

[0023] Further, the pressure sealing structure includes fixed connection ears fixedly connected to the middle parts of both sides of the top sealing cover. A tightening nut is fixedly connected by inlaying on the upper surface position of the fixed connection ears. Two symmetrically arranged fixed support frames are fixedly connected to the middle parts of both sides of the disinfection placement box near the upper position. A rotating sleeve is rotatably connected at the positions of the two fixed support frames.

[0024] Further, a tightening bolt is slidably connected through the rotating sleeve. A limiting fixing ring is fixedly connected through the upper part of the tightening bolt, and the threaded part above the tightening bolt is threadedly connected through the tightening nut.

[0025] Through the above technical solution, by rotating the tightening bolt so that the end of the tightening bolt faces below the tightening nut of the fixed connection ear, the tightening bolt can be screwed into the tightening nut to seal the top sealing cover. By rotating the tightening bolt in the reverse direction, the tightening bolt is separated from the corresponding tightening nut, and by flipping the tightening bolt, the tightening bolt is separated from the fixed connection ear, and the top sealing cover can be opened.

[0026] The beneficial effects of the present invention are as follows: (1) By setting the placement and lifting structure, the fixed placement plate can place the bone nails to be used and disinfected, and the surface of the fixed placement plate is partitioned, and the aperture diameters of the through holes on the surface of each area are inconsistent, so as to adapt to bone nails of different sizes. The bone nail lifting plate rebounds after the top sealing cover is opened, and the fixed part can be slightly bounced up, which is convenient for clamping the bone nails with thinner bolt heads. By using the cushioning adjustment plate to continue to support each partition lifting plate, it can adapt to bone nails of different lengths, so that although the bone nail sizes are different, they can be bounced up slightly, which is convenient for clamping the bone nails and improves the surgical efficiency. The whole process is mechanically linked and controlled by the top sealing cover, and the degree of automation of the control is high and it is convenient to operate; (2) By setting the V-shaped guide plate and the stirring wheel, the water in the disinfection placement box is heated by the electric heating plate, so that the inside of the disinfection placement box is in a high-temperature and high-pressure environment. Then, by rotating the stirring wheel, a vortex is formed in the disinfection placement box, which can effectively and thoroughly disinfect the bone nails and avoid surgical infections. Description of the Drawings

[0027] Figure 1 is the first perspective structure diagram of a screw disinfection device for fracture surgery of the present invention; Figure 2 is the present invention Figure 1 The enlarged view at A in; Figure 3 is the cross-sectional view of the storage and disinfection box of a screw disinfection device for fracture surgery of the present invention; Figure 4 is the unfolded first perspective structure diagram of a screw disinfection device for fracture surgery of the present invention; Figure 5It is the unfolded second perspective structure diagram of a screw disinfection device for fracture surgery of the present invention; Figure 6 It is the assembly diagram of the placing and jacking structure of a screw disinfection device for fracture surgery of the present invention.

[0028] Reference numerals: 1, top sealing cover; 2, transfer handle; 3, disinfection placement box; 4, pressure sealing structure; 40, fixed connection ear; 41, limit fixing ring; 42, rotating sleeve; 43, fixed support frame; 44, tightening bolt; 45, tightening nut; 5, fixed placement plate; 6, limit chute; 7, downward pressure control slider; 8, lower pressing plate; 9, linkage guide rod; 10, downward pressure fixing block; 11, linkage guiding slide rod; 12, first return spring; 13, bone nail jacking plate; 14, partition jacking plate; 15, padding adjustment plate; 16, reduction motor; 17, stirring wheel; 18, electric heating plate; 19, second return spring; 20, V-shaped guide plate; 21, power shaft. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] As Figures 1-6 shown, a screw disinfection device for fracture surgery in this embodiment includes a disinfection placement box 3 for storing disinfected bone nails and a top sealing cover 1 for sealing and preventing bacteria. Between the positions on both sides of the top sealing cover 1 and the disinfection placement box 3, there are two symmetrically arranged pressure sealing structures 4 for applying pressure and sealing. The disinfection placement box 3 can store bone nails to be disinfected and provide storage space for bone nails of different models. The top sealing cover 1 can seal the disinfection placement box 3, and can form a high-pressure and high-temperature environment in the disinfection placement box 3 during heat disinfection to continue to disinfect the bone nails fully and effectively. And when not in use after disinfection is completed, it is sealed to avoid contamination of the bone nails by a bacteria-containing environment.

[0031] The pressure sealing structure 4 includes a fixed connection ear 40 fixedly connected to the middle parts of both sides of the top sealing cover 1. A tightening nut 45 is fixedly connected by inlaying on the upper surface position of the fixed connection ear 40. Two symmetrically arranged fixed support frames 43 are fixedly connected to the middle parts of both sides of the disinfection placement box 3 near the upper position. A rotating sleeve 42 is rotatably connected at the positions of the two fixed support frames 43.

[0032] A tightening bolt 44 is slidably connected through the rotating sleeve 42 in a penetrating manner. A limit fixing ring 41 is fixedly connected through the upper position of the tightening bolt 44 in a penetrating manner. The threaded part above the tightening bolt 44 is threadedly connected with a tightening nut 45 in a penetrating manner. By rotating the tightening bolt 44, the end of the tightening bolt 44 is aligned with the lower part of the tightening nut 45 of the fixed connecting ear 40, and then the tightening bolt 44 can be screwed into the tightening nut 45 to realize the sealing of the top cover 1. By rotating the tightening bolt 44 in the reverse direction, the tightening bolt 44 is separated from the corresponding tightening nut 45, and by flipping the tightening bolt 44, the tightening bolt 44 is separated from the fixed connecting ear 40, and then the top cover 1 can be opened.

[0033] Limit sliding grooves 6 are provided at both sides of the upper surface of the disinfection placement box 3. The inner walls of the two limit sliding grooves 6 are slidably connected with a downward pressure control slider 7. The surface of the downward pressure control slider 7 is inclined. The downward pressure control slider 7 is slidably connected with the surface of the fixed placement plate 5. Two symmetrically arranged downward pressure fixing blocks 10 are fixedly connected to both sides of the lower surface of the top cover 1. The lower surface of the downward pressure fixing block 10 is inclined. The limit sliding groove 6 can limit the downward pressure control slider 7. When the top cover 1 is closed, the downward pressure fixing block 10 will be pressed downward, so that the downward pressure control slider 7 is pressed downward, and then the fixed placement plate 5 can be pressed downward to press the bone nails into the disinfectant for disinfection. After the tightening bolt 44 is separated from the tightening nut 45, the tightening bolt 44 slides downward under the action of gravity, and the tightening bolt 44 will not be separated from the rotating sleeve 42 under the action of the limit fixing ring 41.

[0034] A placement lifting structure for slightly lifting the bone nails for convenient clamping is arranged inside the disinfection placement box 3. Slightly lifting the bone nails can facilitate the medical staff to quickly and effectively clamp the required bone nails during use, and avoid the influence of the thin bolt head on the clamping.

[0035] The placing and lifting structure includes a fixed placing plate 5 that is slidably connected to the inner wall of the disinfection placing box 3 up and down. The fixed placing plate 5 is partitioned, and the size of the through holes is adaptively set according to fixed dimensions. Below the fixed placing plate 5 is a bone nail lifting plate 13. On the upper surface of the bone nail lifting plate 13, partition lifting plates 14 for lifting bone nails are arranged below each partition of the fixed placing plate 5. A number of layer-lifting and adjusting plates 15 are fixedly connected by glue between the lower surface of the corresponding partition lifting plate 14 and the upper part of the bone nail lifting plate 13. The fixed placing plate 5 can place bone nails to be used and disinfected, and the surface of the fixed placing plate 5 is partitioned. The aperture diameters of the through holes on the surface of each area are inconsistent, so as to adapt to bone nails of different sizes. After the top sealing cover 1 is opened, the bone nail lifting plate 13 rebounds, which can realize slightly bouncing up the fixation, facilitating the clamping of bone nails with thinner bolt heads. The reason for setting the partition lifting plates 14 is that the bone nail sizes in each area are different, that is, the lengths are different. By using the layer-lifting and adjusting plates 15 to support each partition lifting plate 14, it is possible to adapt to bone nails of different lengths, so that although the bone nail sizes are different, they can be lifted a slight distance, which is 2 millimeters, facilitating the clamping of bone nails.

[0036] On both sides of the bone nail lifting plate 13, the lower surface of the fixed placing plate 5 is fixedly connected with a number of uniformly distributed second return springs 19. One end of the several second return springs 19 away from the fixed placing plate 5 is fixedly connected to the stepped position of the inner wall of the disinfection placing box 3. On both sides of the upper surface of the bone nail lifting plate 13, two symmetrically arranged linkage guiding slide rods 11 are fixedly connected. Between the upper surface of the bone nail lifting plate 13 and the lower surface of the fixed placing plate 5, two symmetrically arranged first return springs 12 are fixedly connected. The two first return springs 12 are concentric with the corresponding linkage guiding slide rods 11. After the top sealing cover 1 is opened and no longer presses the downward control slider 7, it is reset under the action of the second return springs 19, pulling the bone nails away from the surface of the disinfection liquid. Then, under the action of the residual temperature of the bone nails, the disinfection liquid on the surface of the bone nails dries, and under the action of the bone nail lifting plate 13 and the partition lifting plates 14, the bone nails are lifted. The linkage guiding slide rods 11 limit the up and down sliding of the bone nail lifting plate 13, preventing the bone nail lifting plate 13 from shaking.

[0037] Above the two linkage guiding slide rods 11 is a lower pressing plate 8. In the middle of the upper surface of the two lower pressing plates 8, a linkage guide rod 9 is fixedly connected. One end of the linkage guide rod 9 away from the lower pressing plate 8 is fixedly connected to the inside of the downward pressing fixed block 10. When closing the top sealing cover 1, the lower pressing plate 8 can press the linkage guiding slide rods 11, so that the bone nail lifting plate 13 and the partition lifting plates 14 are pressed down, and then the bone nails are fully pressed into the disinfection liquid for sterilization and disinfection.

[0038] A reduction motor 16 is fixedly connected by a support frame at a position below the V-shaped guide plate 20 inside the disinfection placement box 3. The driving end of the reduction motor 16 is fixedly connected with a power shaft 21. The power shaft 21 is rotatably connected through the bottom of the V-shaped guide plate 20 and fixedly connected with the bottom of the stirring wheel 17. The reduction motor 16 serves as a power source, enabling the reduction motor 16 to provide power for the rotation of the stirring wheel 17, causing the stirring wheel 17 to rotate to form a vortex in the disinfection placement box 3. Moreover, the V-shaped guide plate 20 is arranged in a V shape, facilitating the formation of the vortex.

[0039] A V-shaped guide plate 20 is fixedly connected to the inner wall of the disinfection placement box 3 at a position below the placement and lifting structure. Two symmetrically arranged electric heating plates 18 are fixedly connected by inlay on the surface of the V-shaped guide plate 20. A stirring wheel 17 for stirring to form a vortex is rotatably connected through the bottom of the V-shaped guide plate 20. The V-shaped guide plate 20 cooperates with the stirring wheel 17, enabling the high-temperature liquid to form a strong vortex in the disinfection placement box 3, allowing the high-temperature liquid to fully act on the fixation, making the fixation disinfection and sterilization more thorough. Moreover, the vortex can act on the disinfection placement box 3 to continue disinfecting the inside of the disinfection placement box 3, preventing the remaining bacteria and microorganisms in the disinfection placement box 3 from contaminating the bone nails. The liquid in the disinfection placement box 3 can be heated by the electric heating plate 18.

[0040] A transfer handle 2 for transfer is fixedly connected to the top of the top sealing cover 1. After closing the top sealing cover 1, it can be transferred to the required position by holding the transfer handle 2.

[0041] The working principle of this embodiment is as follows. Open the top sealing cover 1. Under the action of the second return spring 19 and the first return spring 12, the bone nail jacking plate 13 and the fixed placement plate 5 are lifted upward. According to the sizes of the bone nails in different partitions, several layers of cushioning and adjusting plates 15 are fixedly glued to the surface of the bone nail jacking plate 13 in the corresponding partitions, so that the height at which the partition jacking plate 14 and the fixed jacking plate 13 are lifted when rising is 2 - 2.5 millimeters, and bone nails of the corresponding model are placed at the through-hole positions on the surface of the fixed placement plate 5. Add water for disinfection and killing into the disinfection placement box 3, close the top sealing cover. Under the action of pressing the fixed block 10 and the lower pressing plate 8, the lower pressing control slider 7 and the linkage guiding slide rod 11 are pressed, so that the partition jacking plate 14, the fixed jacking plate 13, and the fixed placement plate 5 as a whole move downward and are submerged in the water. Rotate and slide the tightening bolt 44 so that the bolt end of the tightening bolt 44 aligns with the position of the tightening nut 45, and screw the tightening bolt 44 into the tightening nut 45 to achieve the fixed sealing of the top sealing cover 1.

[0042] Start the reduction motor 16 and the electric heating plate 18 to raise the water temperature in the disinfection placement box 3 to form a high-temperature and high-pressure environment, and form a vortex in the disinfection placement box 3 through the stirring wheel 17 and the V-shaped guide plate 20 to comprehensively and thoroughly disinfect and kill the bone nails. Do not open the top sealing cover 1 until it reaches the sterile environment after the disinfection and killing are completed; When the bone nails are needed, rotate and tighten the bolt 44 in the sterile operating room environment to separate the tightening bolt 44 from the tightening nut 45. Under the action of gravity, the tightening bolt 44 slides downward, and the fixed ring 41 can prevent the tightening bolt 44 from separating from the rotating sleeve 42. At this time, the top sealing cover 1 can be opened; After opening the top sealing cover 1, the fixed placement plate 5 rebounds under the action of the first return spring 12 and the second return spring 19, so that the fixed placement plate 5 floats out of the water surface, and the bone nails to be taken are lifted under the action of the bone nail lifting plate 13 and the partition lifting plate 14, which is convenient for taking the bone nails. The overall movement of the device can be realized through the transfer handle 2.

[0043] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A screw disinfection device for fracture surgery, comprising a disinfection placement box (3) for storing disinfected bone screws and a top sealing cover (1) that is sealed and antibacterial, characterized in that: There are two symmetrically arranged pressure sealing structures (4) for pressure sealing between the top sealing cover (1) and the two sides of the disinfection placement box (3); An inner side of the disinfection placement box (3) is provided with a placement and lifting structure for slightly lifting the bone nails to facilitate clamping; An inner wall of the disinfection placement box (3) is fixedly connected with a V-shaped guide plate (20) at a position below the placement and lifting structure. Two symmetrically arranged electric heating plates (18) are fixedly connected by inlaying on a surface of the V-shaped guide plate (20). A stirring wheel (17) for stirring to form a vortex is rotatably connected through the bottom of the V-shaped guide plate (20).

2. The disinfection device for screws used in fracture surgery according to claim 1, wherein The placement and lifting structure includes a fixed placement plate (5) that is slidably connected to the inner wall of the disinfection placement box (3) up and down. The fixed placement plate (5) is partitioned, and the sizes of the through holes are adaptively set according to fixed dimensions. A bone nail lifting plate (13) is arranged below the fixed placement plate (5). Partitioned lifting plates (14) for lifting the bone nails are arranged on an upper surface of the bone nail lifting plate (13) at positions below the partitions of each fixed placement plate (5). A plurality of layers of cushioning and adjusting plates (15) are fixedly connected by glue between a lower surface of the corresponding partitioned lifting plate (14) and above the bone nail lifting plate (13).

3. The disinfection device for screws used in fracture surgery according to claim 2, wherein, A plurality of uniformly distributed second return springs (19) are fixedly connected to both sides of the bone nail lifting plate (13) on a lower surface of the fixed placement plate (5). One ends of the plurality of second return springs (19) far from the fixed placement plate (5) are fixedly connected to a stepped position of the inner wall of the disinfection placement box (3). Two symmetrically arranged linkage guide rods (11) are fixedly connected to both sides of an upper surface of the bone nail lifting plate (13). Two symmetrically arranged first return springs (12) are fixedly connected between an upper surface of the bone nail lifting plate (13) and a lower surface of the fixed placement plate (5). The two first return springs (12) and the corresponding linkage guide rods (11) are concentrically arranged.

4. The disinfection device for screws used in fracture surgery according to claim 1, wherein, Limit chutes (6) are opened at both sides of an upper surface of the disinfection placement box (3). A downward pressure control slider (7) is slidably connected to inner wall positions of the two limit chutes (6). A surface of the downward pressure control slider (7) is inclined. The downward pressure control slider (7) is slidably connected to a surface of the fixed placement plate (5). Two symmetrically arranged downward pressure fixing blocks (10) are fixedly connected to both sides of a lower surface of the top sealing cover (1). A lower surface of the downward pressure fixing block (10) is inclined.

5. A screw disinfection device for fracture surgery according to claim 3, characterized in that, A lower pressing plate (8) is arranged above the two linkage guide rods (11). A linkage guide rod (9) is fixedly connected to a middle position of an upper surface of the two lower pressing plates (8). One end of the linkage guide rod (9) far from the lower pressing plate (8) is fixedly connected to an inner side of the downward pressure fixing block (10).

6. The disinfection device for screws used in fracture surgery according to claim 1, characterized in that, A reduction motor (16) is fixedly connected to an inner side of the disinfection placement box (3) at a position below the V-shaped guide plate (20) through a support frame. A driving end of the reduction motor (16) is fixedly connected to a power shaft (21). The power shaft (21) is rotatably connected through the bottom of the V-shaped guide plate (20) and is fixedly connected to a bottom of the stirring wheel (17).

7. A screw disinfection device for fracture surgery according to claim 1, characterized in that A transfer handle (2) for transfer is fixedly connected to the top position of the top sealing cover (1).

8. A screw disinfection device for fracture surgery according to claim 1, characterized in that: The pressure sealing structure (4) includes fixed connection ears (40) fixedly connected to the middle parts on both sides of the top sealing cover (1). A tightening nut (45) is fixedly connected by inlaying on the upper surface position of the fixed connection ears (40). Two symmetrically arranged fixed support frames (43) are fixedly connected to the middle parts on both sides of the disinfection placement box (3) near the upper position. A rotating sleeve (42) is rotatably connected at the positions of the two fixed support frames (43).

9. A disinfection device for screws used in fracture surgery according to claim 8, characterized in that, A tightening bolt (44) is slidably connected through the rotating sleeve (42). A limit fixing ring (41) is fixedly connected through the upper position of the tightening bolt (44), and the threaded part above the tightening bolt (44) is threadedly connected through the tightening nut (45).

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