Adjustable femur osteotomy guider

Abstract

The utility model relates to the technical field of guiders, and provides an adjustable thighbone osteotomy guider which comprises fixing frames and further comprises two bottom plates, a sliding frame, a guiding frame, a first adjusting mechanism, a second adjusting mechanism, a fixing mechanism and a limiting mechanism. The sliding frame is connected to the fixing frame in a sliding mode, the two guide frames are arranged on the two sides of the sliding frame, the two first adjusting mechanisms are arranged on the sliding frame and correspond to the two guide frames in a one-to-one mode, the fixing mechanism is arranged on the fixing frame, and the two first adjusting mechanisms are arranged on the sliding frame and correspond to the two guide frames in a one-to-one mode. By means of the technical scheme, the osteotomy angle adjusting device solves the problems that according to a fixed guider in the related technology, the osteotomy angle is difficult to adjust, and the use flexibility is low.

Description

Technical Field

[0001] This utility model relates to the field of guide technology, specifically to an adjustable femoral osteotomy guide. Background Technology

[0002] Knee joint disease can severely affect daily life. Generally, patients need to undergo osteotomy to remove the diseased part and replace it with an artificial knee joint prosthesis to help them regain their ability to walk.

[0003] Currently, during femoral osteotomy, a guide is needed to guide the osteotomy tool in order to ensure that the cross-section fits the prosthesis better and to prevent the tool from deviating during osteotomy. However, existing guides are generally fixed. When the location of the femoral lesion is different, the location of osteotomy also varies. Fixed guides are difficult to adjust the angle of osteotomy, resulting in low flexibility of use. Utility Model Content

[0004] This invention proposes an adjustable femoral osteotomy guide, which solves the problem in related technologies where fixed guides are difficult to adjust the osteotomy angle and have low flexibility of use.

[0005] The technical solution of this utility model is as follows: An adjustable femoral osteotomy guide includes a fixation frame, and further includes: a base plate, a slide, a guide frame, a first adjustment mechanism, a second adjustment mechanism, a fixation mechanism, and a limiting mechanism;

[0006] The base plate is provided with two, and the two fixing frames are fixedly connected to the bottom end of the fixing frame;

[0007] The carriage is slidably connected to the fixed frame;

[0008] There are two guide frames, and both guide frames are arranged on both sides of the carriage;

[0009] There are two first adjustment mechanisms, both of which are mounted on the slide. Each of the two first adjustment mechanisms corresponds to one of the two guide frames and is used to adjust the guide frames laterally.

[0010] Both guide frames are equipped with a second adjustment mechanism for longitudinal adjustment of the two guide frames;

[0011] The fixation mechanism is mounted on the fixation frame and is used to fix the fixation frame to the femur.

[0012] The limiting mechanism is installed on the slide and is used to limit and fix the slide.

[0013] Preferably, the first adjustment mechanism includes: a support plate, a rotating shaft, a locking screw, and a locking nut;

[0014] The support plate is provided in two parts, and both support plates are fixedly connected to the slide.

[0015] The rotating shaft is rotatably connected between the two support plates;

[0016] The locking screw is fixedly connected to the top of the rotating shaft;

[0017] The locking nut is threaded onto the locking screw.

[0018] Furthermore, the second adjustment mechanism includes: a stabilizing plate, a rotating plate, a clamping screw, and a clamping nut;

[0019] The stabilizing plate is provided in two parts, and both stabilizing plates are fixedly connected to the rotating shaft;

[0020] The rotating plate is rotatably connected between the two stabilizing plates, and the guide frame is fixedly connected to the rotating plate;

[0021] The clamping screw is fixedly connected to one end of the rotating plate;

[0022] The clamping nut is threaded onto the clamping screw.

[0023] Furthermore, the fixing mechanism includes: a fixing screw, a pressure plate, and a toggle assembly;

[0024] The fixing frame has a screw hole, and the fixing screw is threaded into the screw hole;

[0025] The pressure plate is rotatably connected to the bottom end of the fixed screw;

[0026] The actuating component is located at the top of the fixed screw and is used to actuate the fixed screw to rotate.

[0027] As a further embodiment of this application, the actuating assembly includes: a fixed shaft and a lever;

[0028] The fixed shaft is fixedly connected to the top end of the fixed screw;

[0029] The fixed shaft has a through hole, and the fixed shaft is slidably disposed in the through hole.

[0030] As a further embodiment of this application, the limiting mechanism includes: a limiting screw and a drive wheel;

[0031] The carriage has a screw hole, and the limiting screw is threaded into the screw hole;

[0032] The drive wheel is fixedly connected to one end of the limiting screw.

[0033] Based on the aforementioned scheme, a through hole is provided on one of the support plates near the top, and the locking screw passes through the through hole and extends to the top of the support plate.

[0034] Furthermore, based on the aforementioned solution, a through hole is provided on the stabilizing plate, and the clamping screw passes through the through hole and extends to one side of the stabilizing plate.

[0035] As a preferred technical solution of this application, both of the stabilizing plates and the two supporting plates are elastic.

[0036] As a preferred technical solution of this application, both bottom plates have inclined surfaces at their bottom ends.

[0037] The working principle and beneficial effects of this utility model are as follows:

[0038] In this invention, the cooperation between the base plate, slide, guide frame, first adjustment mechanism, second adjustment mechanism, fixing mechanism and limiting mechanism facilitates multi-angle adjustment of the guide frame according to the location of the femoral lesion, resulting in high flexibility of use. Attached Figure Description

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0040] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0041] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0042] Figure 3 This is a schematic diagram of the structure of the first and second adjusting mechanisms of this utility model;

[0043] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model.

[0044] In the diagram: 1. Fixed frame; 2. Base plate; 4. Slide; 5. Guide frame; 6. Support plate; 7. Rotating shaft; 8. Locking screw; 9. Locking nut; 10. Stabilizing plate; 11. Rotating plate; 12. Clamping screw; 13. Clamping nut; 14. Fixed screw; 15. Pressure plate; 16. Fixed shaft; 17. Lever; 18. Limiting screw; 19. Drive wheel. Detailed Implementation

[0045] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0046] like Figures 1-4 As shown, this embodiment proposes an adjustable femoral osteotomy guide, including a fixation frame 1, and further including: a base plate 2, a slide 4, a guide frame 5, a first adjustment mechanism, a second adjustment mechanism, a fixation mechanism, and a limiting mechanism. The bottom ends of both base plates 2 are provided with inclined surfaces, and there are two base plates 2. Both fixation frames 1 are fixedly connected to the bottom ends of the fixation frames 1. The slide 4 is slidably connected to the fixation frame 1. There are two guide frames 5, both located on either side of the slide 4. Through the cooperation between the base plate 2, the slide 4, the guide frame 5, the first adjustment mechanism, the second adjustment mechanism, the fixation mechanism, and the limiting mechanism, the guide frame 5 can be adjusted at multiple angles according to the location of the femoral lesion, providing high flexibility in use.

[0047] The system includes two first adjustment mechanisms, each mounted on the slide 4. Each mechanism corresponds to one of the two guide frames 5 and is used for lateral adjustment of the guide frames 5. Each first adjustment mechanism includes a support plate 6, a rotating shaft 7, a locking screw 8, and a locking nut 9. A through hole is provided on one of the support plates 6 near the top. The locking screw 8 passes through the through hole and extends to the top of the support plate 6. Two support plates 6 are provided, both fixedly connected to the slide 4. The rotating shaft 7 is rotatably connected between the two support plates 6. The locking screw 8 is fixedly connected to the top of the rotating shaft 7, and the locking nut 9 is threaded onto the locking screw 8. Specifically, the operator rotates the rotating shaft laterally, thereby adjusting the guide frame 5 laterally. After adjustment, the locking nut 9 is tightened onto the locking screw 8, causing the two support plates 6 to clamp the rotating shaft 7, thus fixing the guide frame 5.

[0048] Each of the two guide frames 5 is equipped with a second adjustment mechanism for longitudinal adjustment. The second adjustment mechanism includes a stabilizing plate 10, a rotating plate 11, a clamping screw 12, and a clamping nut 13. Both stabilizing plates 10 and two supporting plates 6 have a certain degree of elasticity. The stabilizing plate 10 has a through hole, through which the clamping screw 12 extends to one side of the stabilizing plate 10. There are two stabilizing plates 10, both of which are fixedly connected to the rotating shaft 7. The rotating plate 11 is rotatably connected between the two stabilizing plates 10. The guide frame 5 is fixedly connected to the rotating plate 11. The clamping screw 12 is fixedly connected to one end of the rotating plate 11, and the clamping nut 13 is threadedly connected to the clamping screw 12. Specifically, the operator swings the guide frame 5 for longitudinal adjustment. After adjustment, the clamping nut on the clamping screw 12 is tightened, thereby clamping the rotating plate 11 between the two stabilizing plates 10, thus fixing the adjusted guide frame 5.

[0049] The fixing mechanism is mounted on the fixing frame 1 and is used to fix the fixing frame 1 to the femur. The fixing mechanism includes a fixing screw 14, a pressure plate 15, and a turning component. The fixing frame 1 has a screw hole, and the fixing screw 14 is threaded into the screw hole. The pressure plate 15 is rotatably connected to the bottom end of the fixing screw 14. The turning component is located at the top end of the fixing screw 14 and is used to turn the fixing screw 14 to rotate. The turning component includes a fixing shaft 16 and a lever 17. The fixing shaft 16 is fixedly connected to the top end of the fixing screw 14 and has a through hole. The fixing shaft 16 is slidably disposed in the through hole. Specifically, the operator rotates the lever 17 and the fixing shaft 16 to rotate, thereby driving the fixing screw 14 to rotate. When the fixing screw 14 rotates, it drives the pressure plate 15 to cooperate with the base plate 2, thereby fixing the fixing frame 1 to the femur.

[0050] The limiting mechanism is installed on the slide 4 to limit and fix the slide 4. The limiting mechanism includes a limiting screw 18 and a drive wheel 19. The slide 4 has a screw hole, the limiting screw 18 is threaded into the screw hole, and the drive wheel 19 is fixedly connected to one end of the limiting screw 18. Specifically, the operator drives the drive wheel 19 and the limiting screw 18 to rotate, so that the limiting screw 18 abuts against the fixing frame 1, thereby fixing the slide 4 on the fixing frame 1.

[0051] In this embodiment, when the angle of the guide frame 5 needs to be adjusted, the operator rotates the lever 17 and the fixed shaft 16 to rotate, thereby driving the fixed screw 14 to rotate. When the fixed screw 14 rotates, it drives the pressure plate 15 to cooperate with the base plate 2, thereby fixing the fixed frame 1 to the femur. The operator drives the wheel 19 and the limiting screw 18 to rotate, thereby the limiting screw 18 abuts against the fixed frame 1, thereby fixing the slide 4 to the fixed frame 1. The operator swings the guide frame 5 for longitudinal adjustment. After adjustment, the clamping nut on the clamping screw 12 is tightened, thereby clamping the rotating plate 11 with the two stabilizing plates 10, thereby fixing the adjusted guide frame 5. The operator swings the rotating shaft for lateral rotation, thereby driving the guide frame 5 for lateral adjustment. After adjustment, the locking nut 9 is tightened on the locking screw 8, thereby clamping the rotating shaft 7 with the two support plates 6, thereby fixing the guide frame 5.

[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An adjustable femoral osteotomy guide, comprising a fixation frame (1), characterized in that, Also includes: The base plate (2) is provided in two parts, and the two fixing frames (1) are fixedly connected to the bottom end of the fixing frame (1); The slide (4) is slidably connected to the fixed frame (1); Guide frame (5), two guide frames (5) are provided, and both guide frames (5) are arranged on both sides of the slide (4); The first adjustment mechanism is provided in two parts. Both first adjustment mechanisms are set on the slide (4). The two first adjustment mechanisms correspond one-to-one with the two guide frames (5) respectively, and are used to adjust the guide frames (5) laterally. The second adjustment mechanism is provided on both guide frames (5) for longitudinal adjustment of the two guide frames (5); A fixation mechanism is provided on the fixation frame (1) for fixing the fixation frame (1) to the femur; A limiting mechanism is provided on the slide (4) for limiting and fixing the slide (4).

2. The adjustable femoral osteotomy guide according to claim 1, characterized in that, The first adjustment mechanism includes: Support plate (6), two support plates (6) are provided, and both support plates (6) are fixedly connected to the slide (4); A rotating shaft (7) is rotatably connected between the two support plates (6); A locking screw (8) is fixedly connected to the top end of the rotating shaft (7); A locking nut (9) is threaded onto the locking screw (8).

3. The adjustable femoral osteotomy guide according to claim 2, characterized in that, The second adjustment mechanism includes: Stabilizing plate (10), two stabilizing plates (10) are provided, and both stabilizing plates (10) are fixedly connected to the rotating shaft (7); A rotating plate (11) is rotatably connected between two stabilizing plates (10), and a guide frame (5) is fixedly connected to the rotating plate (11). A clamping screw (12) is fixedly connected to one end of the rotating plate (11); A clamping nut (13) is threaded onto the clamping screw (12).

4. An adjustable femoral osteotomy guide according to claim 3, characterized in that, The fixing mechanism includes: A fixing screw (14) is provided on the fixing bracket (1), and the fixing screw (14) is threaded into the screw hole; Pressure plate (15), which is rotatably connected to the bottom end of the fixing screw (14); A toggle assembly is disposed at the top of the fixed screw (14) and is used to rotate the fixed screw (14).

5. An adjustable femoral osteotomy guide according to claim 4, characterized in that, The toggle assembly includes: A fixed shaft (16) is fixedly connected to the top end of the fixed screw (14); The lever (17) has a through hole on the fixed shaft (16), and the fixed shaft (16) is slidably disposed in the through hole.

6. An adjustable femoral osteotomy guide according to claim 5, characterized in that, The limiting mechanism includes: The limiting screw (18) is provided with a screw hole on the slide (4), and the limiting screw (18) is threaded into the screw hole; A drive wheel (19) is fixedly connected to one end of the limiting screw (18).

7. An adjustable femoral osteotomy guide according to claim 6, characterized in that, A through hole is provided on one of the support plates (6) near the top, and the locking screw (8) passes through the through hole and extends to the top of the support plate (6).

8. An adjustable femoral osteotomy guide according to claim 7, characterized in that, The stabilizing plate (10) has a through hole, and the clamping screw (12) passes through the through hole and extends to one side of the stabilizing plate (10).

9. An adjustable femoral osteotomy guide according to claim 8, characterized in that, Both of the stabilizing plates (10) and the two supporting plates (6) are elastic.

10. An adjustable femoral osteotomy guide according to claim 9, characterized in that, Both of the base plates (2) have inclined surfaces at their bottom ends.

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