Bone nail processing clamp

Abstract

The utility model discloses a bone nail machining clamp which comprises a base, an adjusting assembly is connected in the base, a first clamping assembly is connected to the upper end of the adjusting assembly, and a second clamping assembly is arranged above the first clamping assembly. The bone nail machining clamp is characterized in that through the arrangement of the second clamping assembly, according to different lines of a bone nail main body, the bone nail main body can be clamped according to different lines of the bone nail main body; during replacement, the cross rod is pulled outwards to drive the pull rod to move outwards, so that the positioning column is separated from the positioning groove, and meanwhile, the spring is compressed, so that the adaptive plates can be detached, and new different adaptive plates can be replaced; the utility model discloses a bone nail clamp which is used for solving the problem that in the machining process of a bone nail, drilling is needed for the head of the bone nail, tapping is needed for a bone nail body, and compared with a clamp in a patent, bone nail bodies with different lines are difficult to clamp, the head of the bone nail is difficult to clamp, and therefore stability of the bone nail is difficult to improve when the bone nail is machined.

Description

Technical Field

[0001] The utility model relates to the field of bone nail processing fixtures, in particular to a bone nail processing fixture. Background Art

[0002] A bone screw processing jig is a tool used to fix and position bone screws (metal screws used in surgery) for processing and handling;

[0003] The Chinese patent application number: CN202022266657.6 discloses a clamping fixture for aseptic processing of intraosseous steel nails for orthopedics. Through the slide groove and the slider, the support rod can be slid left and right according to the processing requirements, which avoids the difficulty of adjusting the support rod, reduces the working efficiency of the device, and improves the practicality of the device;

[0004] However, during the processing of the bone screw, it is necessary to drill a hole in the head and tap the body of the bone screw. Compared with the fixture in the patent, it is difficult to clamp the body of the bone screw with different patterns, and it is also difficult to clamp the head of the bone screw. Therefore, it is difficult to improve the stability of the bone screw during processing. For this reason, we propose a bone screw processing fixture. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a bone screw processing fixture. By setting a clamping component 2, it can be used to clamp the bone screw body after tapping, which is convenient for operations such as drilling holes on the bone screw head. According to the different textures of the bone screw body, the adapter plate with different adapter grooves can be replaced so that the adapter groove can be engaged with the texture of the bone screw body. When replacing, the cross bar is pulled outward to drive the pull rod to move outward, so that the positioning column is disengaged from the positioning groove and the spring is compressed at the same time, so that the adapter plate can be removed and replaced with a new different adapter plate. The operation is simple and can clamp the bone screw bodies with different textures.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A bone screw processing fixture comprises a base, an adjusting component is connected inside the base, a clamping component 1 is connected to the upper end of the adjusting component, and a clamping component 2 is arranged above the clamping component 1;

[0008] The second clamping assembly includes a pair of bone screw body clamping plates, which are symmetrically distributed on the left and right sides. The opposite end faces of the pair of bone screw body clamping plates are connected with adapter plates, and the outer ends of the adapter plates are provided with adapter grooves. The upper and lower ends of the bone screw body clamping plates are fixedly connected with splints, and the outside of the splints is movably connected with a cross bar, one end of the cross bar is fixedly connected with a pull rod, the inside of the splint is connected with a spring, and the end of the pull rod away from the cross bar is fixedly connected with a positioning column, and the upper and lower ends of the adapter plate are provided with positioning grooves.

[0009] By setting up the clamping component 2, it can be used to clamp the bone screw body after tapping, which is convenient for operations such as drilling holes on the bone screw head. According to the different textures of the bone screw body, you can choose to replace the adapter plate that drives different adapter grooves so that the adapter groove can be engaged with the texture of the bone screw body. When replacing, pull the cross bar outward to drive the pull rod to move outward, so that the positioning column is disengaged from the positioning groove and the spring is compressed at the same time, so that the adapter plate can be removed and replaced with a new different adapter plate. The operation is simple and can clamp the bone screw bodies with different textures.

[0010] Furthermore, the pull rod passes through the splint and is slidably connected to the splint, one end of the spring is fixedly connected to the splint, the other end of the spring is fixedly connected to the pull rod, the positioning column is movably connected inside the positioning groove, and the positioning column, pull rod and positioning groove are adapted.

[0011] Furthermore, the clamping assembly 2 also includes a knob 2, one end of which is fixedly connected to a screw rod 2, the outside of which is movably connected to a slider 2, the slider 2 is adapted to the screw rod 2, the outer end of the slider 2 is fixedly connected to a connecting sleeve 2, the end of the connecting sleeve 2 away from the slider 2 is fixedly connected to the bone screw body clamping plate, a guide rod 2 is provided below the slider 2, the lower end of the slider 2 is fixedly connected to a guide block 2, and the guide block 2 is slidably connected to the guide rod 2.

[0012] By setting the clamping assembly 2 and rotating the knob 2, the screw rod 2 is driven to rotate, thereby driving the slider 2 and the connecting sleeve 2 to move left and right, and then the distance between a pair of bone screw body clamping plates can be adjusted, so as to facilitate clamping of bone screw bodies of different diameters.

[0013] Furthermore, the clamping assembly 1 includes a movable seat, the movable seat is rotatably connected to the knob 2, the movable seat is rotatably connected to the screw rod 2, the movable seat is fixedly connected to the guide rod 2, the connecting sleeve 2 passes through the movable seat and is slidably connected to the movable seat, the outer portion of the movable seat is rotatably connected to the knob 1, one end of the knob 1 is fixedly connected to the screw rod 1, the screw rod 1 is rotatably connected to the movable seat, and the outer portion of the screw rod 1 is movably connected to a slider 1.

[0014] Furthermore, the slider 1 is adapted to the screw rod 1, the outer end of the slider 1 is fixedly connected to a connecting sleeve 1, the connecting sleeve 1 passes through the movable seat and is slidably connected to the movable seat, and the end of the connecting sleeve 1 away from the slider 1 is fixedly connected to a bone screw head clamping plate.

[0015] Furthermore, a guide rod 1 is fixedly connected inside the movable seat, a guide block 1 is fixedly connected to the lower end of the slide block 1, and the guide block 1 is slidably connected to the guide rod 1.

[0016] Furthermore, the adjustment component includes a slide groove, which is opened at the upper end of the base, a pair of linear guide rails are fixedly connected inside the base, a linear motor is slidably connected to the upper end of the linear guide rail, and a connecting block is fixedly connected to the upper end of the linear motor.

[0017] Furthermore, the connection block passes through the slide slot and is slidably connected to the slide slot, and the connection block is fixedly connected to the movable seat.

[0018] In summary, the utility model has the following beneficial effects:

[0019] 1. By setting the clamping component 2, it can be used to clamp the bone screw body after tapping, which is convenient for operations such as drilling holes on the bone screw head. According to the different textures of the bone screw body, the adapter plate with different adapter grooves can be replaced so that the adapter groove can be engaged with the texture of the bone screw body. When replacing, the cross bar is pulled outward to drive the pull rod to move outward, so that the positioning column is separated from the positioning groove, and the spring is compressed at the same time, so that the adapter plate can be removed and replaced with a new different adapter plate. The operation is simple and can clamp the bone screw body with different textures;

[0020] 2. By setting the clamping assembly 2 and rotating the knob 2, the screw rod 2 is driven to rotate, thereby driving the slider 2 and the connecting sleeve 2 to move left and right, and then the spacing between a pair of bone screw body clamping plates can be adjusted, so as to facilitate the clamping of bone screw bodies of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0022] Figure 2 is a partial three-dimensional structural schematic diagram of the clamping assembly in this embodiment;

[0023] Figure 3 Schematic diagram of the structure of the cross section in this embodiment;

[0024] Figure 4 is a schematic structural diagram of the second cross section of the clamping assembly in this embodiment;

[0025] Figure 5 In this embodiment Figure 4 Schematic diagram of the structure at A in the middle.

[0026] In the figure, 1, base; 2, adjustment component; 201, slide groove; 202, linear guide; 203, linear motor; 204, connecting block; 3, clamping component one; 301, moving seat; 302, knob one; 303, screw rod one; 304, slider one; 305, connecting sleeve one; 306, bone screw head clamping plate; 307, guide rod one; 308, guide block one; 4, clamping component two; 401, bone screw body clamping plate; 402, adapter plate; 403, adapter groove; 404, clamping plate; 405, cross bar; 406, pull rod; 407, spring; 408, positioning column; 409, positioning groove; 410, knob two; 411, screw rod two; 412, slider two; 413, connecting sleeve two; 414, guide rod two; 415, guide block two. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] Reference Figure 1 As shown, a bone screw processing fixture in a preferred embodiment of the utility model comprises a base 1, an adjusting component 2 is connected inside the base 1, a clamping component 1 3 is connected to the upper end of the adjusting component 2, and a clamping component 2 4 is arranged above the clamping component 1 3;

[0030] Reference Figure 1-Figure 5 As shown, the clamping assembly 24 includes a pair of bone screw body clamping plates 401, which are symmetrically distributed on the left and right sides. The opposite end surfaces of the pair of bone screw body clamping plates 401 are connected with adapter plates 402, and the outer ends of the adapter plates 402 are provided with adapter grooves 403. The upper and lower ends of the bone screw body clamping plates 401 are fixedly connected with splints 404, and the outside of the splints 404 is movably connected with a cross bar 405, one end of the cross bar 405 is fixedly connected with a pull rod 406, the inside of the splint 404 is connected with a spring 407, and the end of the pull rod 406 away from the cross bar 405 is fixedly connected with a positioning column 408, and the upper and lower ends of the adapter plates 402 are provided with positioning grooves 409.

[0031] By setting up the clamping assembly 24, it can be used to clamp the bone screw body after tapping, which is convenient for operations such as drilling a hole on the bone screw head. According to the different textures of the bone screw body, the adapter plate 402 with different adapter grooves 403 can be replaced so that the adapter groove 403 can be engaged with the texture of the bone screw body. When replacing, the cross bar 405 is pulled outward to drive the pull rod 406 to move outward, so that the positioning column 408 is disengaged from the positioning groove 409, and the spring 407 is compressed at the same time, so that the adapter plate 402 can be removed and replaced with a new different adapter plate 402. The operation is simple and can clamp the bone screw bodies with different textures.

[0032] Reference Figure 1-Figure 5 As shown, the pull rod 406 passes through the splint 404 and is slidably connected to the splint 404, one end of the spring 407 is fixedly connected to the splint 404, the other end of the spring 407 is fixedly connected to the pull rod 406, the positioning column 408 is movably connected inside the positioning groove 409, and the positioning column 408, the pull rod 406 and the positioning groove 409 are adapted to each other.

[0033] Reference Figure 1-Figure 4 As shown, the clamping assembly 24 also includes a knob 2410, one end of which is fixedly connected to a screw rod 2411, the outside of which is movably connected to a slider 2412, the slider 2412 is adapted to the screw rod 2411, the outer end of the slider 2412 is fixedly connected to a connecting sleeve 2413, one end of the connecting sleeve 2413 away from the slider 2412 is fixedly connected to the bone screw body clamping plate 401, a guide rod 2414 is provided below the slider 2412, a guide block 2415 is fixedly connected to the lower end of the slider 2412, and the guide block 2415 is slidably connected to the guide rod 2414.

[0034] By setting the clamping assembly 24 and rotating the knob 2410, the screw rod 2411 is driven to rotate, thereby driving the slider 2412 and the connecting sleeve 2413 to move left and right, and then the distance between a pair of bone screw body clamping plates 401 can be adjusted, so as to facilitate clamping of bone screw bodies of different diameters.

[0035] Reference Figure 1 and Figure 3 As shown, the clamping assembly 3 includes a moving seat 301, the moving seat 301 is rotatably connected to the knob 2 410, the moving seat 301 is rotatably connected to the screw rod 2 411, the moving seat 301 is fixedly connected to the guide rod 2 414, the connecting sleeve 2 413 penetrates the moving seat 301 and is slidably connected to the moving seat 301, the outside of the moving seat 301 is rotatably connected to the knob 1 302, one end of the knob 1 302 is fixedly connected to the screw rod 1 303, the screw rod 1 303 is rotatably connected to the moving seat 301, and the outside of the screw rod 1 303 is movably connected to the slider 1 304.

[0036] Reference Figure 1 and Figure 3As shown, a slider 304 is matched with a screw rod 303, and a connecting sleeve 305 is fixedly connected to the outer end of the slider 304. The connecting sleeve 305 passes through the movable seat 301 and is slidably connected to the movable seat 301. The end of the connecting sleeve 305 away from the slider 304 is fixedly connected to a bone screw head clamping plate 306.

[0037] By setting a clamping assembly 3 and rotating a knob 302, the screw rod 303 is driven to rotate, thereby driving a slider 304, a connecting sleeve 305 and a bone screw head clamping plate 306 to move left and right, and adjusting the spacing between a pair of bone screw head clamping plates 306 to adapt to bone screw heads of different diameters.

[0038] Reference Figure 1 and Figure 3 As shown, a guide rod 307 is fixedly connected inside the movable seat 301 , a guide block 308 is fixedly connected to the lower end of the slider 304 , and the guide block 308 is slidably connected to the guide rod 307 .

[0039] By providing a guide rod 307 and a guide block 308, a guide function can be provided to the slide block 304.

[0040] Reference Figure 1 and Figure 3 As shown, the adjustment component 2 includes a slide groove 201, which is opened at the upper end of the base 1. A pair of linear guide rails 202 are fixedly connected inside the base 1. The upper end of the linear guide rail 202 is slidably connected to a linear motor 203, and the upper end of the linear motor 203 is fixedly connected to a connecting block 204.

[0041] Reference Figure 1 and Figure 3 As shown, the connection block 204 passes through the slide slot 201 and is slidably connected to the slide slot 201 , and the connection block 204 is fixedly connected to the moving seat 301 .

[0042] By setting the adjustment component 2, the linear motor 203 drives the connecting block 204 and the moving seat 301 to move left and right, so that the distance between a pair of bone screw body clamping plates 401 and a pair of bone screw head clamping plates 306 can be adjusted simultaneously as a whole.

[0043] Specific implementation process: First, the linear motor 203 drives the connecting block 204 and the moving seat 301 to move left and right, so that the spacing between a pair of bone screw body clamping plates 401 and a pair of bone screw head clamping plates 306 can be adjusted at the same time;

[0044] Then, according to the different processing parts, the knob 302 is first rotated to drive the screw rod 303 to rotate, thereby driving the slider 304, the connecting sleeve 305 and the bone screw head clamping plate 306 to move left and right, and the distance between the pair of bone screw head clamping plates 306 is adjusted to clamp the bone screw heads of different diameters, and then the pair of bone screw body clamping plates 401 are moved outward to facilitate tapping of the bone screw body;

[0045] Then, the adapter plate 402 with different adapter grooves 403 is selected for replacement, so that the adapter groove 403 can be engaged with the texture of the bone screw body. When replacing, the cross bar 405 is pulled outward to drive the pull rod 406 to move outward, so that the positioning column 408 is separated from the positioning groove 409, and the spring 407 is compressed, so that the adapter plate 402 can be removed and replaced with a new adapter plate 402;

[0046] By turning the second knob 410, the second screw rod 411 is rotated, thereby driving the second slider 412 and the second connecting sleeve 413 to move left and right, and then the spacing between the pair of bone screw body clamping plates 401 can be adjusted to facilitate clamping of bone screw bodies of different diameters, and then the pair of bone screw head clamping plates 306 are moved outward to facilitate drilling of the bone screw head.

[0047] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bone screw processing fixture, characterized in that: It comprises a base (1), the interior of the base (1) is connected to an adjustment component (2), the upper end of the adjustment component (2) is connected to a clamping component 1 (3), and a clamping component 2 (4) is arranged above the clamping component 1 (3); The clamping assembly 2 (4) comprises a pair of bone screw body clamping plates (401), the pair of bone screw body clamping plates (401) are symmetrically distributed on the left and right sides, the opposite end surfaces of the pair of bone screw body clamping plates (401) are connected to adapter plates (402), the outer ends of the adapter plates (402) are provided with adapter grooves (403), the upper and lower ends of the bone screw body clamping plates (401) are fixedly connected to clamp plates (404), the outside of the clamp plates (404) is movably connected to a cross bar (405), one end of the cross bar (405) is fixedly connected to a pull rod (406), the inside of the clamp plates (404) is connected to a spring (407), the end of the pull rod (406) away from the cross bar (405) is fixedly connected to a positioning column (408), and the upper and lower ends of the adapter plates (402) are provided with positioning grooves (409).

2. The bone screw processing fixture according to claim 1, characterized in that: The pull rod (406) passes through the clamp (404) and is slidably connected to the clamp (404); one end of the spring (407) is fixedly connected to the clamp (404); the other end of the spring (407) is fixedly connected to the pull rod (406); the positioning column (408) is movably connected inside the positioning groove (409); the positioning column (408), the pull rod (406) and the positioning groove (409) are adapted to each other.

3. The bone screw processing fixture according to claim 2, characterized in that: The clamping assembly 2 (4) also includes a knob 2 (410), one end of which is fixedly connected to a screw rod 2 (411), the outside of which is movably connected to a slider 2 (412), the slider 2 (412) being adapted to the screw rod 2 (411), the outer end of the slider 2 (412) being fixedly connected to a connecting sleeve 2 (413), the end of the connecting sleeve 2 (413) away from the slider 2 (412) being fixedly connected to the bone screw body clamping plate (401), a guide rod 2 (414) being arranged below the slider 2 (412), a guide block 2 (415) being fixedly connected to the lower end of the slider 2 (412), the guide block 2 (415) being slidably connected to the guide rod 2 (414).

4. The bone screw processing fixture according to claim 3, characterized in that: The clamping assembly 1 (3) comprises a movable seat (301), the movable seat (301) being rotatably connected to a knob 2 (410), the movable seat (301) being rotatably connected to a screw rod 2 (411), the movable seat (301) being fixedly connected to a guide rod 2 (414), the connecting sleeve 2 (413) penetrating the movable seat (301) and being slidably connected to the movable seat (301), the outer portion of the movable seat (301) being rotatably connected to a knob 1 (302), one end of the knob 1 (302) being fixedly connected to a screw rod 1 (303), the screw rod 1 (303) being rotatably connected to the movable seat (301), and the outer portion of the screw rod 1 (303) being movably connected to a slider 1 (304).

5. The bone screw processing fixture according to claim 4, characterized in that: The slider 1 (304) is adapted to the screw rod 1 (303); the outer end of the slider 1 (304) is fixedly connected to a connecting sleeve 1 (305); the connecting sleeve 1 (305) passes through the movable seat (301) and is slidably connected to the movable seat (301); the end of the connecting sleeve 1 (305) away from the slider 1 (304) is fixedly connected to a bone screw head clamping plate (306).

6. The bone screw processing fixture according to claim 5, characterized in that: A guide rod 1 (307) is fixedly connected inside the movable seat (301), a guide block 1 (308) is fixedly connected at the lower end of the sliding block 1 (304), and the guide block 1 (308) is slidably connected to the guide rod 1 (307).

7. The bone screw processing fixture according to claim 6, characterized in that: The adjustment component (2) comprises a slide groove (201), the slide groove (201) is opened at the upper end of the base (1), a pair of linear guide rails (202) are fixedly connected inside the base (1), a linear motor (203) is slidably connected to the upper end of the linear guide rails (202), and a connecting block (204) is fixedly connected to the upper end of the linear motor (203).

8. The bone screw processing fixture according to claim 7, characterized in that: The connecting block (204) passes through the slide groove (201) and is slidably connected to the slide groove (201); the connecting block (204) is fixedly connected to the movable seat (301).

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