Bone nail clamping collet

Abstract

The utility model provides a bone nail clamping collet chuck, and relates to the technical field of clamping collet chucks, the bone nail clamping collet chuck comprises a collet chuck main body and a clamping device, and the collet chuck main body is used for clamping a bone nail; the clamping device is arranged at the lower end of the collet chuck main body; a clamping device is arranged at the lower end of the collet chuck body, an adjusting button is fixedly connected to one side of the outer portion of the clamping device, a rotating wheel is fixedly connected to one end of the adjusting button, a matching opening is formed in one side of a movable plate, a sliding plate is connected to one end of the movable plate, and a corresponding opening is formed in one side of the sliding plate. According to the technical key points, the threaded bone nail is placed in the collet chuck body, a threaded strip in the collet chuck body is in threaded connection with the threaded bone nail, the threaded bone nail is rotated to enter the collet chuck body, the position can be adjusted by rotating the threaded bone nail, and after adjustment is completed, it needs to be ensured that the tail of the threaded bone nail is connected into a fixing groove in a connecting plate; and the threaded bone nail is more stable in the machining process.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping collets, in particular to a bone screw clamping collet. Background Art

[0002] Bone screws are commonly used for fixation of internal fractures or dislocations. They are achieved by screwing directly into two different bone blocks or internal implants such as fixed bone plates to fix the fracture, position the bone and promote its healing. Bone screws are non-active surgical metal implants for bone integration, consisting of cortical bone screws (full thread and half thread) and cancellous bone screws (full thread and half thread). They are used for stable fractures, revision surgery, joint fusion, and reconstruction of small bones of the foot, ankle and toes.

[0003] During the processing of existing bone screws, collets are generally used to clamp the bone screws. However, the existing collets all use straight grooves. When clamping the threads of the bone screws, the maximum width of the thread tooth top is only 0.2 mm, and the clamping contact area is small, resulting in uneven width of the tooth top surface, making the clamping unstable and prone to nail slippage, thereby affecting the processing. Utility Model Content

[0004] In order to overcome the problem that, during the processing of existing bone screws, a collet is generally used to clamp the bone screws. However, the existing collets all use straight grooves. When clamping the thread of the bone screw, the maximum width of the thread tooth top is only 0.2 mm, and the clamping contact area is small, resulting in uneven width of the tooth top surface, making the clamping unstable and prone to nail slippage, thereby affecting the processing. The embodiment of the present application provides a bone screw clamping collet.

[0005] The technical solution adopted by the embodiment of the present application to solve its technical problem is: the collet body is used to clamp the bone screw. When the bone screw needs to be processed, the bone screw is placed in the clamping device at the lower end of the collet body. After the bone screw is placed inside, the adjustment button on one side of the clamping device is rotated to drive the rotating wheel at one end to rotate. The rotation of the rotating wheel drives the rotating screw at one end to rotate. The rotation of the rotating screw drives the external moving plate and sliding plate to move. The movement of the moving plate and the sliding plate drives the matching port and the corresponding port on one side. The matching port and the corresponding port move to the middle of the rotating screw to wrap the bone screw, so that the bone screw is more stable during the processing process.

[0006] A bone screw clamping collet comprises a collet body and a clamping device, wherein the collet body is used for clamping the bone screw;

[0007] A clamping device, arranged at the lower end of the collet body;

[0008] Among them, a clamping device is provided at the lower end of the collet body, an adjusting button is fixedly connected to an external side of the clamping device, one end of the adjusting button is fixedly connected to a rotating wheel, one end of the rotating wheel is fixedly installed with a rotating screw, a moving plate is provided on the outside of the rotating screw, a matching port is provided on one side of the moving plate, one end of the moving plate is connected to a sliding plate, and a corresponding port is provided on one side of the sliding plate.

[0009] In a possible implementation, stabilizing rods are provided on both sides of the rotating screw rod, and a sliding plate and a moving plate are connected to the outside of the stabilizing rod.

[0010] In a possible implementation, a sliding groove is provided inside the movable plate, and the sliding groove is slidably connected to the rotating screw rod.

[0011] In a possible implementation, stabilizing grooves are provided on both sides of the sliding groove, and the stabilizing grooves are slidably connected to the stabilizing rods.

[0012] In a possible implementation, a connecting groove is provided at the lower end of the matching port, a connecting plate is fixedly connected to the lower end of the corresponding port, a fixing groove is provided inside the connecting plate, and the connecting plate is slidably connected to the connecting groove.

[0013] In a possible implementation, a threaded strip is disposed inside the collet body, and a threaded bone screw is connected inside the threaded strip.

[0014] In a possible implementation, a fixing rod is disposed at the lower end of the fixing groove, and the fixing rod is fixedly connected to the tail of the threaded bone screw.

[0015] In summary, the present invention includes at least one of the following beneficial technical effects:

[0016] 1. By placing the threaded bone screw into the collet body, the threaded strip inside the collet body is threadedly connected with the threaded bone screw, so that the threaded bone screw can be rotated to enter the collet body. When the processing position needs to be changed, the position can be adjusted by rotating the threaded bone screw. After the adjustment is completed, it is necessary to ensure that the tail of the threaded bone screw is connected to the fixing groove inside the connecting plate, so that the threaded bone screw is more stable during the processing and will not slip;

[0017] 2. Place the bone screw in the clamping device at the lower end of the collet body, and after the bone screw is placed inside, turn the adjustment button on one side of the clamping device to drive the rotating wheel at one end to rotate, and the rotation of the rotating wheel drives the rotating screw at one end to rotate, and the rotation of the rotating screw drives the external moving plate and sliding plate to move, and the movement of the moving plate and the sliding plate drives the matching port and the corresponding port on one side, and the matching port and the corresponding port move to the middle of the rotating screw to wrap the bone screw, so that the bone screw is more stable during the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the overall structural diagrams of the utility model;

[0019] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0020] Figure 3 This is the third schematic diagram of the overall structure of the utility model;

[0021] Figure 4 For this utility model Figure 3 The enlarged schematic diagram of the middle A part;

[0022] Description of the drawings: 1. Collet body; 2. Clamping device; 3. Adjustment button; 4. Rotating wheel; 5. Rotating screw; 6. Moving plate; 7. Matching mouth; 8. Sliding plate; 9. Corresponding mouth; 10. Stabilizing rod; 11. Sliding groove; 12. Stabilizing groove; 13. Connecting groove; 14. Connecting plate; 15. Fixing groove; 16. Threaded strip; 17. Threaded bone screw; 18. Fixing rod. DETAILED DESCRIPTION

[0023] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0024] Embodiment 1:

[0025] This embodiment introduces a specific structure of a bone screw clamping collet. Figure 1-Figure 3 As shown, it comprises: a collet body 1 and a clamping device 2, wherein the collet body 1 is used for clamping a bone screw;

[0026] A clamping device 2 is arranged at the lower end of the collet body 1;

[0027] The lower end of the collet body 1 is provided with a clamping device 2, an outer side of the clamping device 2 is fixedly connected with an adjusting button 3, one end of the adjusting button 3 is fixedly connected with a rotating wheel 4, one end of the rotating wheel 4 is fixedly installed with a rotating screw 5, a moving plate 6 is provided outside the rotating screw 5, one side of the moving plate 6 is provided with a matching port 7, one end of the moving plate 6 is connected with a sliding plate 8, and one side of the sliding plate 8 is provided with a corresponding port 9;

[0028] Secondly, the collet body 1 is used to clamp the bone screw. When the bone screw needs to be processed, the bone screw is placed inside the clamping device 2 at the lower end of the collet body 1. After the bone screw is placed inside, the adjustment button 3 on one side of the clamping device 2 is rotated to drive the rotating wheel 4 at one end to rotate. The rotation of the rotating wheel 4 drives the rotating screw 5 at one end to rotate. The rotation of the rotating screw 5 drives the external moving plate 6 and the sliding plate 8 to move. The movement of the moving plate 6 and the sliding plate 8 drives the matching port 7 and the corresponding port 9 on one side. The matching port 7 and the corresponding port 9 move to the middle of the rotating screw 5 to wrap the bone screw, so that the bone screw is more stable during the processing process.

[0029] Furthermore, when the rotating screw rod 5 rotates, it is slidably connected with the sliding groove 11 inside the moving plate 6, so that the rotating screw rod 5 rotates to drive the moving plate 6 to move. The moving plate 6 is slidably connected with the stabilizing rods 10 on both sides of the rotating screw rod 5 through the stabilizing grooves 12 at both ends of the internal sliding groove 11, so that the moving plate 6 is more stable when moving without the problem of position deviation.

[0030] At the same time, when the screw rod 5 rotates, the moving plates 6 and the sliding plates 8 at the two ends of the outside move toward the middle, and the matching opening 7 on one side of the moving plate 6 matches with the corresponding opening 9 on one side of the sliding plate 8, and the collet body 1 is clamped by moving. The sliding plate 8 moves to drive the connecting plate 14 at the lower end of the corresponding opening 9 to move, and the connecting plate 14 moves to the inside of the connecting groove 13 at the lower end of the matching opening 7. When the connecting plate 14 enters the inside of the connecting groove 13, the connecting plate 14 lifts the collet body 1, making it more stable when processing the bone screw;

[0031] By adopting the above technical solution:

[0032] The collet body 1 of the above-mentioned design is used to clamp bone screws. When the bone screw needs to be processed, the bone screw is placed inside the clamping device 2 at the lower end of the collet body 1. After the bone screw is placed inside, the adjustment button 3 on one side of the clamping device 2 is rotated to drive the rotating wheel 4 at one end to rotate. The rotation of the rotating wheel 4 drives the rotating screw 5 at one end to rotate. The rotation of the rotating screw 5 drives the external moving plate 6 and the sliding plate 8 to move. The movement of the moving plate 6 and the sliding plate 8 drives the matching port 7 and the corresponding port 9 on one side. The matching port 7 and the corresponding port 9 move to the middle of the rotating screw 5 to wrap the bone screw, so that the bone screw is more stable during the processing process.

[0033] Embodiment 2:

[0034] Based on Example 1, this example introduces the specific structure of the collet body. When the threaded bone screw 17 needs to be processed, the threaded bone screw 17 is placed inside the collet body 1, and the threaded strip 16 inside the collet body 1 is threadedly connected with the threaded bone screw 17, so that the threaded bone screw 17 is rotated to enter the collet body 1. When the processing position needs to be changed, the position can be adjusted by rotating the threaded bone screw 17;

[0035] Furthermore, the threaded bone screw 17 is rotated to enter the interior of the collet body 1. After the threaded bone screw 17 is fixed, it is necessary to ensure that the tail of the threaded bone screw 17 is connected to the fixing groove 15 inside the connecting plate 14, so that the threaded bone screw 17 is more stable during the processing and will not slip.

[0036] The user's operation steps are:

[0037] S1, firstly fit the threaded bone screw 17 to the collet body 1, and rotate the threaded bone screw 17 to make the threaded bone screw 17 enter the collet body 1;

[0038] S2. After the threaded bone screw 17 enters the interior of the collet body, the adjusting button 3 on one side of the rotating clamping device 2 drives the rotating wheel 4 at one end to rotate, and the rotating wheel 4 drives the rotating screw 5 at one end to rotate, and the rotating screw 5 drives the external moving plate 6 and the sliding plate 8 to move, and the moving plate 6 and the sliding plate 8 move to drive the matching port 7 and the corresponding port 9 on one side, and the matching port 7 and the corresponding port 9 move to the middle of the rotating screw 5 to wrap the threaded bone screw 17, so that the threaded bone screw 17 is more stable during the processing;

[0039] S3. When the processing position of the threaded bone screw 17 needs to be adjusted, the threaded bone screw 17 is rotated to move up and down inside the collet body 1. After the adjustment is completed, it is necessary to ensure that the tail of the threaded bone screw 17 is connected to the fixing groove 15 inside the connecting plate 14, so that the threaded bone screw 17 is more stable during the processing and will not slip.

[0040] By adopting the above technical solution:

[0041] The above-mentioned design is to place the threaded bone screw 17 into the interior of the collet body 1, and the threaded strip 16 inside the collet body 1 is threadedly connected with the threaded bone screw 17, so that the threaded bone screw 17 can be rotated to enter the interior of the collet body 1. When the processing position needs to be changed, the position can be adjusted by rotating the threaded bone screw 17. After the adjustment is completed, it is necessary to ensure that the tail of the threaded bone screw 17 is connected to the fixing groove 15 inside the connecting plate 14, so that the threaded bone screw 17 is more stable during the processing process and will not slip.

[0042] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A bone screw clamping collet, characterized in that: include: A collet body (1) for clamping a bone screw; A clamping device (2) disposed at the lower end of the collet body (1); The lower end of the collet body (1) is provided with a clamping device (2), an external side of the clamping device (2) is fixedly connected with an adjusting button (3), one end of the adjusting button (3) is fixedly connected with a rotating wheel (4), one end of the rotating wheel (4) is fixedly mounted with a rotating screw (5), a movable plate (6) is provided outside the rotating screw (5), one side of the movable plate (6) is provided with a matching opening (7), one end of the movable plate (6) is connected with a sliding plate (8), and one side of the sliding plate (8) is provided with a corresponding opening (9).

2. A bone screw clamping collet according to claim 1, characterized in that: Stabilizing rods (10) are provided on both sides of the rotating screw rod (5), and the outside of the stabilizing rod (10) is connected to a sliding plate (8) and a moving plate (6).

3. A bone screw clamping collet as claimed in claim 2, characterized in that: A sliding groove (11) is provided inside the movable plate (6), and the sliding groove (11) is slidably connected to the rotating screw rod (5).

4. A bone screw clamping collet as claimed in claim 3, characterized in that: Stabilizing grooves (12) are provided on both sides of the sliding groove (11), and the stabilizing grooves (12) are slidably connected to the stabilizing rod (10).

5. The bone screw clamping collet according to claim 1, characterized in that: A connecting groove (13) is provided at the lower end of the matching opening (7), a connecting plate (14) is fixedly connected to the lower end of the corresponding opening (9), a fixing groove (15) is provided inside the connecting plate (14), and the connecting plate (14) is slidably connected to the connecting groove (13).

6. A bone screw clamping collet as claimed in claim 5, characterized in that: A threaded strip (16) is provided inside the collet body (1), and a threaded bone screw (17) is connected inside the threaded strip (16).

7. A bone screw clamping collet according to claim 6, characterized in that: A fixing rod (18) is provided at the lower end of the fixing groove (15), and the fixing rod (18) is fixedly connected to the tail of the threaded bone screw (17).

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