Split tibial tubercle osteotomy guide

Abstract

The utility model discloses a split tibial tubercle osteotomy guide plate, its characterized in that, including: tibial tubercle osteotomy guide plate, four oblique kirschner wires, handle pole, handle pole is installed tibial tubercle osteotomy guide plate, tibial tubercle osteotomy guide plate is equipped with four through -hole, and one oblique kirschner wire is inserted in each through -hole, tibial tubercle osteotomy guide plate still is equipped with a osteotomy groove, the utility model has simplified the surgical operation step, convenient to use, has extensive clinical application value.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices and related fields, and in particular to a split-type tibial tuberosity osteotomy guide plate. Background Technology

[0002] Habitual patellar dislocation in adults, a common condition in sports medicine, often requires surgical treatment. The surgery includes lateral knee joint release, medial patellofemoral ligament reconstruction, and tibial tuberosity transfer. This surgical technique effectively improves knee joint function and reduces patient pain. Tibial tuberosity transfer requires tibial tuberosity osteotomy, which alters the patellar movement trajectory, improves patellofemoral joint stress, and ultimately stabilizes the patella and reduces pressure on the patellar cartilage. The size of the osteotomy fragment is related to the distance of transfer and the healing rate of the osteotomy site. Obtaining a suitable-sized fragment often results in a large incision with the aid of an osteotomy guide, which is difficult for patients to tolerate. Currently, minimally invasive osteotomy can be performed through a 4cm distal lateral incision of the tibial tuberosity, but the fragment size is irregularly trapezoidal, making osteotomy more challenging and difficult to master. Therefore, a split-type tibial tuberosity osteotomy guide is proposed. Utility Model Content

[0003] In view of this, and to solve the above problems, the purpose of this utility model is to provide a split-type tibial tuberosity osteotomy guide plate, comprising:

[0004] Osteotomy guide plate, four oblique Kirschner wires, handle;

[0005] The handle is mounted on the osteotomy guide plate;

[0006] The osteotomy guide plate is provided with four through holes, and a beveled Kirschner wire is inserted into each through hole;

[0007] The osteotomy guide plate is also provided with an osteotomy groove.

[0008] In the aforementioned split-type tibial tuberosity osteotomy guide plate, the osteotomy groove extends along the length direction of the osteotomy guide plate from its width direction.

[0009] In the aforementioned split-type tibial tuberosity osteotomy guide plate, both inner walls of the osteotomy groove are recessed inward to form several grooves, and the grooves of the two inner walls are arranged opposite each other, forming a fixing hole.

[0010] The aforementioned split-type tibial tuberosity osteotomy guide plate has two threaded holes, which are symmetrically arranged along the osteotomy groove.

[0011] In the aforementioned split-type tibial tuberosity osteotomy guide plate, one end of the handle is provided with a threaded rod, which can be installed in any of the threaded holes.

[0012] In the aforementioned split-type tibial tuberosity osteotomy guide plate, the outer wall of the handle is provided with several anti-slip grooves.

[0013] The aforementioned split-type tibial tuberosity osteotomy guide plate has rounded corners on all its edges.

[0014] In the aforementioned split-type tibial tuberosity osteotomy guide plate, the edges and corners of the osteotomy groove are all rounded.

[0015] The positive effects of the above technical solution compared with the existing technology are:

[0016] 1. This utility model designs an osteotomy guide plate based on the relatively smooth cortical bone of the medial and lateral sides of the distal tibial tuberosity. This allows the plate to be directly attached to the proximal tibia during surgery, and the osteotomy operation can be started immediately according to the preoperative osteotomy plan, simplifying the surgical procedure.

[0017] 2. This invention utilizes a combination of two osteotomy guides, four oblique Kirschner wires, and a handle. The two osteotomy guides reduce the volume of each osteotomy section, eliminating the need to separate important soft tissue structures such as the pes anserinus, thus minimizing soft tissue damage and achieving a reliable bony apex. Furthermore, the first osteotomy guide indicates the position, angle, and depth of the osteotomy, while the second guide further assists in determining the correction angle and the calibrated force line, improving correction accuracy. This allows for a complete trapezoidal osteotomy, quickly determining the osteotomy location and avoiding the high radiation levels that could harm the surgeon's health. Additionally, the closer fit between the osteotomy guide and the proximal tibia demonstrates precision medicine and personalized treatment methods, possessing broader clinical application value.

[0018] 3. This utility model reduces the size of the osteotomy guide plate and allows for separate use according to the surgical incision, reducing soft tissue damage while obtaining a reliable bony lining. It reduces the volume of the osteotomy guide plate and makes it easy to obtain a reliable bony lining, while reducing important soft tissue damage, and accurately and quickly assisting in the implementation of tibial tuberosity osteotomy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a split-type tibial tuberosity osteotomy guide plate according to the present invention.

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0021] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0022] Figure 4This is an exploded view of a split-type tibial tuberosity osteotomy guide plate according to the present invention.

[0023] Figure 5 This is a diagram illustrating the first step of the operation in this utility model.

[0024] Figure 6 This is an operation diagram for the second step in this utility model.

[0025] Figure 7 This is an operation diagram for the third step in this utility model.

[0026] Figure 8 This is an operation diagram for the fourth step in this utility model.

[0027] Figure 9 This is an operation diagram for the fifth step in this utility model.

[0028] Figure 10 This is an operational diagram of the sixth part of this utility model.

[0029] Figure 11 This is a diagram illustrating the seventh step of the operation in this utility model.

[0030] Figure 12 This is an operation diagram for the eighth step in this utility model.

[0031] Figure 13 This is an operation diagram for the ninth step in this utility model.

[0032] Figure 14 This is the operation diagram for the tenth step in this utility model.

[0033] Figure 15 This is the operation diagram for step eleven in this utility model.

[0034] 1. Osteotomy guide plate; 2. Beveled Kirschner wire; 3. Handle; 4. Osteotomy groove; 5. Groove; 6. Rounded corner; 7. Through hole; 8. Threaded hole; 9. Anti-slip groove; 10. Threaded rod; 11. Oscillating saw. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0036] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0037] like Figures 1 to 4 The diagram shows a preferred embodiment of a split tibial tuberosity osteotomy guide plate, which includes: two osteotomy guide plates 1, four oblique Kirschner wires 2, and a handle 3.

[0038] The handle 3 is installed on one of the osteotomy guide plates 1; each osteotomy guide plate 1 has four through holes 7, and a slanted Kirschner wire 2 is inserted into each through hole 7; each osteotomy guide plate 1 also has an osteotomy groove 4.

[0039] In actual use, the osteotomy guide plate 1 is operated through the handle 3 and fixed by four oblique Kirschner wires 2. The two osteotomy guide plates 1 are used together, and the two osteotomy guide plates 1 have the same structure.

[0040] Based on the above, this utility model also has the following embodiments:

[0041] Furthermore, a split-type tibial tuberosity osteotomy guide plate is provided, wherein the osteotomy groove 4 extends from the width direction of the osteotomy guide plate 1 along the length direction of the osteotomy groove 4.

[0042] Furthermore, a split-type tibial tuberosity osteotomy guide plate is provided, wherein the two inner walls of the osteotomy groove 4 are recessed inward to form several grooves 5, and the grooves 5 on the two inner walls are arranged opposite to each other, and the two grooves 5 form a fixing hole.

[0043] Furthermore, a split-type tibial tuberosity osteotomy guide plate is provided, wherein the osteotomy guide plate 1 is provided with two threaded holes 8, which are symmetrically arranged along the osteotomy groove 4. Specifically, the handle 3 is easily detached and installed on the osteotomy guide plate 1 through a threaded connection.

[0044] Furthermore, a split-type tibial tuberosity osteotomy guide plate is provided, wherein one end of the handle 3 is provided with a threaded rod 10, which can be installed in any threaded hole 8.

[0045] Furthermore, a split-type tibial tuberosity osteotomy guide plate is provided, wherein the outer wall of the handle 3 is provided with several anti-slip grooves 9. Specifically, the anti-slip grooves 9 effectively prevent the user from slipping when holding the handle 3.

[0046] Furthermore, a split-type tibial tuberosity osteotomy guide plate is provided, wherein the corners of the osteotomy guide plate 1 are all provided with rounded corners 6. Specifically, the rounded corners 6 are provided to ensure that the osteotomy guide plate 1 will not cause harm to the human body.

[0047] Furthermore, a split-type tibial tuberosity osteotomy guide plate is provided, wherein the corners of the osteotomy groove 4 are all rounded.

[0048] The specific steps for using this device are as follows:

[0049] Step 1: Please refer to Figure 5 As shown, after the lateral osteotomy line of the tibia is exposed, the user holds the handle 3 and drives the threaded rod 10 into the threaded hole 8.

[0050] Step Two: Please refer to Figure 6 As shown, the handle 3 is fixedly connected to the first osteotomy guide plate 1. After that, the user holds the handle 3 and moves the first osteotomy guide plate 1 against the bone surface, so that the osteotomy line overlaps with the osteotomy groove 4.

[0051] Step 3: Please refer to Figure 7 As shown, oblique Kirschner wires 2 are inserted into the four through holes 7 of the first osteotomy guide plate 1 to fix the position of the first osteotomy guide plate 1.

[0052] Step 4: Please refer to Figure 8 As shown, the first osteotomy guide plate 1 is fixed by four oblique Kirschner wires 2.

[0053] Step 5: Please refer to Figure 9 As shown, the oscillating saw 11 is used to move within the osteotomy groove 4 for cutting.

[0054] Step Six: Please refer to Figure 10 As shown, after the first cut is completed, two oblique Kirschner wires 2 are removed, and the other two oblique Kirschner wires 2 are left in the through hole 7 on the first osteotomy guide plate 1.

[0055] Step Seven: Please refer to Figure 11 As shown, the through hole 7 on the second osteotomy guide plate 1 is used to mount two other oblique Kirschner wires 2 that are retained on the first osteotomy guide plate 1.

[0056] Step 8: Please refer to Figure 12 As shown, the second osteotomy guide plate 1 and two other oblique Kirschner wires 2 are fixed, and the second osteotomy guide plate 1 is pushed to fit the bone surface, thereby determining the distal osteotomy line.

[0057] Step Nine: Please refer to Figure 13As shown, two of the oblique Kirschner wires 2 are then inserted into the through holes 7 on the second osteotomy guide plate 1.

[0058] Step 10: Please refer to Figure 14 As shown, two oblique Kirschner wires 2 are fixed to the second osteotomy guide plate 1, the osteotomy guide plate 1 is re-fixed, and the osteotomy line on the outer side of the osteotomy is positioned.

[0059] Step 11: Please refer to Figure 15 As shown, the oscillating saw 11 is finally moved within the osteotomy groove 4 to complete the angle osteotomy.

[0060] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A split-type tibial tuberosity osteotomy guide plate, characterized in that, include: Two osteotomy guides, four oblique Kirschner wires, and handles; The handle is mounted on one of the osteotomy guide plates; Each of the osteotomy guide plates has four through holes, and one oblique Kirschner wire is inserted into each of the through holes; Each of the osteotomy guide plates is also provided with an osteotomy groove.

2. A split-type tibial tuberosity osteotomy guide plate according to claim 1, characterized in that, The osteotomy groove is formed by extending the osteotomy guide plate along the length direction of the osteotomy groove.

3. A split-type tibial tuberosity osteotomy guide plate according to claim 2, characterized in that, The two inner walls of the osteotomy groove are recessed inward to form several grooves, and the grooves of the two inner walls are arranged opposite each other, forming a fixing hole.

4. A split-type tibial tuberosity osteotomy guide plate according to claim 1, characterized in that, The osteotomy guide plate is provided with two threaded holes, which are symmetrically arranged along the osteotomy groove.

5. A split-type tibial tuberosity osteotomy guide plate according to claim 4, characterized in that, One end of the handle is provided with a threaded rod, which can be installed in any of the threaded holes.

6. A split-type tibial tuberosity osteotomy guide plate according to claim 1, characterized in that, The outer wall of the handle is provided with several anti-slip grooves.

7. A split-type tibial tuberosity osteotomy guide plate according to claim 1, characterized in that, The corners of the osteotomy guide plate are all rounded.

8. A split-type tibial tuberosity osteotomy guide plate according to claim 1, characterized in that, The edges and corners of the osteotomy groove are all rounded.

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