Cortical bone screw for taking out broken screw

Abstract

The cortical bone screw comprises a fixing assembly, the upper end of the fixing assembly is fixedly connected with a lifting assembly, the front side of the lifting assembly is provided with a connecting assembly, the connecting assembly is provided with a rotating assembly, and the bottom end of the rotating assembly is fixedly connected with a clamping assembly. The rotating assembly comprises a rotating disc, the clamping assembly comprises a connecting disc fixedly connected to the bottom end of the rotating disc, and a sliding groove is formed in the connecting disc. According to the broken nail punching device, the device can be connected and fixed through the arranged fixing assembly, the height of the connecting assembly, the height of the rotating assembly and the height of the clamping assembly can be adjusted through the arranged lifting assembly, the two sides of the upper end of a broken nail can be punched, and the distance between inserting rods at the bottom end of a mounting plate can be adjusted through the arranged clamping assembly; the inserting rods are inserted into the drill holes in the two sides, the clamping assemblies can be driven to rotate by rotating the rotating assemblies, and therefore the broken nails can be taken out in a rotating mode.

Description

Technical Field

[0001] This utility model relates to the technical field of cortical bone screws for removing broken nails, and more particularly to a cortical bone screw for removing broken nails. Background Technology

[0002] Bone screws are non-active surgical metal implants used for bone joining. They consist of cortical bone screws (fully threaded and partially threaded) and cancellous bone screws (fully threaded and partially threaded). They are suitable for use in stable fractures, revision surgery, joint fusion, and reconstruction of small bones in the foot, ankle, and toes. They can be used in adult and pediatric patients. Structurally, they consist of a front cutting edge, a middle cylindrical section, and a tail. The cutting edge can be flat, conical, or threaded, and the tail can be round, square, triangular, or flat. Screws are frequently used in orthopedic surgery to locate fractured bones. In reality, many patients with screws implanted inside their bones experience screw breakage.

[0003] Most bone screws used in existing orthopedic surgeries are difficult to remove after breakage. Surgeons often use forceps to remove them, but some screws break off inside the bone, making it difficult for forceps to reach the bone and thus hindering removal. To overcome these disadvantages, this invention provides a cortical bone screw for the removal of broken screws. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cortical bone screw for removing broken nails.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cortical bone screw for removing broken nails, comprising a fixing component, a lifting component fixedly connected to the upper end of the fixing component, a connecting component provided on the front side of the lifting component, a rotating component provided on the connecting component, a clamping component fixedly connected to the bottom end of the rotating component, the rotating component including a turntable, the clamping component including a connecting plate fixedly connected to the bottom end of the turntable, a sliding groove being formed inside the connecting plate, a second bidirectional screw being rotatably connected inside the sliding groove, an adjusting bolt being fixedly connected to one end of the second bidirectional screw, mounting plates being slidably connected to both sides inside the sliding groove, the mounting plates being threadedly connected to one side of the second bidirectional screw, and a plug rod being fixedly connected to the bottom end of each mounting plate.

[0006] Furthermore, the fixing component includes a slide rail, and a first bidirectional screw is rotatably connected inside the slide rail, with a first adjusting knob fixedly connected to the bottom end of the first bidirectional screw.

[0007] Furthermore, clamping plates are slidably connected to both sides of the slide rail, and the clamping plates are threadedly connected to one side of the first bidirectional screw.

[0008] Furthermore, the lifting assembly includes a connecting frame fixedly connected to the slide rail, a limit rod fixedly connected to one side inside the connecting frame, and a first screw rotatably connected to the other side inside the connecting frame, with a second adjusting knob fixedly connected to the upper end of the first screw.

[0009] Furthermore, the connecting assembly includes a fixing plate, one end of which is fixedly connected to a connecting block, the connecting block being slidably connected to a limiting rod, and the connecting block being threadedly connected to a first screw.

[0010] Furthermore, a connecting ring is fixedly connected to one end of the fixed plate, and the connecting ring is rotatably connected to the turntable.

[0011] Furthermore, a connecting plate is fixedly connected to one side of the turntable, and a crank handle is rotatably connected to the connecting plate.

[0012] The beneficial effects of this utility model are:

[0013] In use, this invention utilizes a cortical bone screw for removing broken nails. A fixing assembly connects and secures the device, while a lifting assembly adjusts the height of the connecting, rotating, and clamping assemblies. Holes are drilled on both sides of the upper end of the broken nail. The clamping assembly adjusts the spacing between the inserts at the bottom of the mounting plate, allowing the inserts to be inserted into the drilled holes on both sides. Rotating the rotating assembly rotates the clamping assembly, thus allowing the broken nail to be rotated out. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 : Front view of this utility model;

[0016] Figure 2 : Schematic diagram of the fixing component and lifting component of this utility model;

[0017] Figure 3 : Schematic diagram of the rotating component and clamping component of this utility model;

[0018] Figure 4 : Schematic diagram of the connecting component structure of this utility model.

[0019] The attached figures are labeled as follows:

[0020] 1. Fixing component; 2. Lifting component; 3. Connecting component; 4. Rotating component; 5. Clamping component; 6. Slide rail; 7. First bidirectional screw; 8. Clamping plate; 9. First adjusting knob; 10. Connecting frame; 11. First screw; 12. Limiting rod; 13. Second adjusting knob; 14. Turntable; 15. Connecting plate; 16. Handle; 17. Connecting disc; 18. Slide groove; 19. Second bidirectional screw; 20. Adjusting bolt; 21. Mounting plate; 22. Insert rod; 23. Fixing plate; 24. Connecting ring; 25. Connecting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-4 As shown, a cortical bone screw for removing broken nails is disclosed, comprising a fixing component 1, a lifting component 2 fixedly connected to the upper end of the fixing component 1, a connecting component 3 disposed on the front side of the lifting component 2, a rotating component 4 disposed on the connecting component 3, and a clamping component 5 fixedly connected to the bottom end of the rotating component 4. The rotating component 4 includes a turntable 14, and the clamping component 5 includes a connecting plate 17 fixedly connected to the bottom end of the turntable 14. A sliding groove 18 is provided inside the connecting plate 17, and a second bidirectional screw 19 is rotatably connected inside the sliding groove 18. An adjusting bolt 20 is fixedly connected to one end of the second bidirectional screw 19. Mounting plates 21 are slidably connected to both sides inside the sliding groove 18, and the mounting plates 21 are threadedly connected to one side of the second bidirectional screw 19 respectively. Insert rods 22 are fixedly connected to the bottom end of the mounting plates 21.

[0023] As shown in the figure, the fixing component 1 includes a slide rail 6, a first bidirectional screw 7 is rotatably connected inside the slide rail 6, a first adjusting knob 9 is fixedly connected to the bottom end of the first bidirectional screw 7, and clamping plates 8 are slidably connected to both sides inside the slide rail 6. The clamping plates 8 are threadedly connected to one side of the first bidirectional screw 7 respectively. Rotating the first adjusting knob 9 drives the first bidirectional screw 7 to rotate, thereby driving the clamping plates 8 to move closer along the slide rail 6. The clamping plates 8 can be clamped and fixed to the table surface.

[0024] As shown in the figure, the lifting assembly 2 includes a connecting frame 10 fixedly connected to the slide rail 6. A limit rod 12 is fixedly connected to one side of the connecting frame 10, and a first screw 11 is rotatably connected to the other side of the connecting frame 10. A second adjusting knob 13 is fixedly connected to the upper end of the first screw 11. The connecting assembly 3 includes a fixing plate 23. A connecting block 25 is fixedly connected to one end of the fixing plate 23. The connecting block 25 is slidably connected to the limit rod 12 and threadedly connected to the first screw 11. A connecting ring 24 is fixedly connected to one end of the fixing plate 23 and rotatably connected to the turntable 14. One side of the turntable 14 is fixed. A connecting plate 15 is connected, and a crank 16 is rotatably connected to the connecting plate 15. Rotating the second adjusting knob 13 drives the first screw 11 to rotate, which can drive the connecting assembly 3 to slide along the limiting rod 12 through the connecting block 25 to drill holes on both sides of the upper end of the broken nail. Rotating the adjusting bolt 20 drives the second bidirectional screw 19 to rotate, which can drive the mounting plate 21 to slide along the slide groove 18 to adjust the spacing between the insert rods 22 so that the insert rods 22 are inserted into the holes on both sides. Rotating the crank 16 drives the turntable 14 to rotate around the connecting ring 24, which can drive the clamping assembly to rotate, thereby rotating and removing the broken nail.

[0025] Working principle: In use, the device can be connected and fixed by the fixed component 1. Specifically, rotating the first adjustment knob 9 drives the first bidirectional screw 7 to rotate, thereby driving the clamping plate 8 to move closer to the slide rail 6. The clamping plate 8 can clamp and fix the device to the table. The lifting component 2 can adjust the height of the connecting component 3, the rotating component 4, and the clamping component 5. Specifically, rotating the second adjustment knob 13 drives the first screw 11 to rotate, which drives the connecting component 3 to slide along the limiting rod 12 via the connecting block 25, thus fixing the broken nail. Holes are drilled on both sides of the upper end. The spacing between the insertion rods 22 at the bottom of the mounting plate 21 can be adjusted by the clamping assembly 5. Specifically, rotating the adjusting bolt 20 drives the second bidirectional screw 19 to rotate, which can drive the mounting plate 21 to slide along the slide groove 18 and adjust the spacing between the insertion rods 22 so that the insertion rods 22 are inserted into the holes on both sides. Rotating the rotating assembly 4 can drive the clamping assembly 5 to rotate. Specifically, rotating the crank handle 16 drives the turntable 14 to rotate around the connecting ring 24, which can drive the clamping assembly to rotate and remove the broken nail.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cortical bone screw for removing broken bone screws, characterized in that: The device includes a fixing component (1), a lifting component (2) fixedly connected to the upper end of the fixing component (1), a connecting component (3) provided on the front side of the lifting component (2), a rotating component (4) provided on the connecting component (3), a clamping component (5) fixedly connected to the bottom end of the rotating component (4), the rotating component (4) including a turntable (14), the clamping component (5) including a connecting plate (17) fixedly connected to the bottom end of the turntable (14), a sliding groove (18) provided inside the connecting plate (17), a second bidirectional screw (19) rotatably connected inside the sliding groove (18), an adjusting bolt (20) fixedly connected to one end of the second bidirectional screw (19), mounting plates (21) slidably connected to both sides inside the sliding groove (18), the mounting plates (21) are threadedly connected to one side of the second bidirectional screw (19), and a plug rod (22) fixedly connected to the bottom end of the mounting plates (21).

2. A cortical bone screw for removing broken screws according to claim 1, characterized in that: The fixing component (1) includes a slide rail (6), and a first bidirectional screw (7) is rotatably connected inside the slide rail (6). A first adjusting knob (9) is fixedly connected to the bottom end of the first bidirectional screw (7).

3. A cortical bone screw for removing broken nails according to claim 2, characterized in that: The slide rail (6) has slidably connected clamping plates (8) on both sides inside, and the clamping plates (8) are threadedly connected to one side of the first bidirectional screw (7).

4. A cortical bone screw for removing broken nails according to claim 3, characterized in that: The lifting assembly (2) includes a connecting frame (10) fixedly connected to the slide rail (6). A limit rod (12) is fixedly connected to one side of the connecting frame (10), and a first screw (11) is rotatably connected to the other side of the connecting frame (10). A second adjusting knob (13) is fixedly connected to the upper end of the first screw (11).

5. A cortical bone screw for removing broken nails according to claim 1, characterized in that: The connecting component (3) includes a fixing plate (23), one end of which is fixedly connected to a connecting block (25), the connecting block (25) is slidably connected to the limiting rod (12), and the connecting block (25) is threadedly connected to the first screw (11).

6. A cortical bone screw for removing broken nails according to claim 5, characterized in that: One end of the fixed plate (23) is fixedly connected to a connecting ring (24), and the connecting ring (24) is rotatably connected to the turntable (14).

7. A cortical bone screw for removing broken screws according to claim 1, characterized in that: A connecting plate (15) is fixedly connected to one side of the turntable (14), and a crank (16) is rotatably connected to the connecting plate (15).

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