External fixing frame for orthopedics department

Abstract

The utility model relates to an orthopedic external fixing frame which comprises a driving rod, a fixing block and bone needles. A thread is arranged on the driving rod; the fixing block is provided with a screw hole which is in threaded connection with the driving rod; the number of the fixing blocks is two. The bone needle is arranged on the fixing block; wherein the driving rod comprises a first section and a second section; the screwing directions of the threads on the first section and the second section are opposite; one fixing block is arranged on the first section, and the other fixing block is arranged on the second section. According to the utility model, two sections of threads with opposite screwing directions are arranged on the driving rod. The two fixing blocks can be close to or far away from each other by rotating the driving rod, so that the orthopedic external fixing frame can realize two treatment forms of lengthening and pressurizing of a skeleton, and the two treatment forms of lengthening and pressurizing of the skeleton can be flexibly switched. The universality and the treatment flexibility of the orthopedic external fixing frame are improved.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to orthopedic external fixators. Background Technology

[0002] In general orthopedics, bone fixation, lengthening, or compression often involves surgical incision and fixation with plates and intramedullary nails. This treatment method is invasive, prone to complications, requires a second surgery to remove the internal fixation device, and its efficacy is unreliable, easily leading to complications such as deformity or nonunion. Therefore, external fixation using a Taylor frame is more commonly used; however, the Taylor frame is relatively large, significantly impacting the patient's daily life. Furthermore, the Taylor frame has multiple telescopic structures, making length adjustment cumbersome, increasing the risk of infection during treatment, and affecting the patient's confidence in recovery.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an orthopedic external fixator to simplify the adjustment steps of the external fixator in bone treatment.

[0005] The technical solution of this utility model is as follows:

[0006] An orthopedic external fixator, the orthopedic external fixator comprising a drive rod, a fixation block, and bone pins;

[0007] The drive rod is provided with threads;

[0008] The drive rod is connected to a threaded hole in the fixing block; two fixing blocks are provided.

[0009] The bone needle is mounted on the fixing block;

[0010] The drive rod includes a first section and a second section; the threads on the first section and the second section have opposite directions; one fixing block is disposed on the first section and the other fixing block is disposed on the second section.

[0011] A further technical solution is that a first fastening hole is opened on the fixing block; a first threaded fastener is provided in the first fastening hole, and one end of the first threaded fastener abuts against the drive rod.

[0012] A further technical solution includes a fixing rod; the fixing rod passes through both fixing blocks simultaneously; the fixing rod is parallel to the driving rod.

[0013] A further technical solution is that a second fastening hole is opened on the fixing block; a second threaded fastener is provided in the second fastening hole, and one end of the second threaded fastener abuts against the fixing rod.

[0014] A further technical solution is that the second fastening hole is opened at the end of the fixing block away from the bone.

[0015] A further technical solution is that two bone needles are provided on each of the fixing blocks; the two bone needles are arranged in parallel and in the same direction.

[0016] A further technical solution is that the bone needle is arranged perpendicular to the drive rod.

[0017] A further technical solution is to provide a shoulder between the first segment and the second segment.

[0018] A further technical solution is that the two ends of the drive rod are respectively provided with unthreaded optical shaft sections.

[0019] A further technical solution is that slots are respectively opened on both ends of the drive rod in the length direction.

[0020] The beneficial technical effects of this utility model are as follows:

[0021] (1) In this utility model, the orthopedic external fixator has two fixing blocks threadedly connected to a drive rod. Rotating the drive rod adjusts the position of the fixing blocks, thereby adjusting the position of the bone pins on the fixing blocks. The convenient adjustment of the bone pin position improves the flexibility of treatment and helps doctors better control the alignment and fixation of the bone pins, thus improving the treatment effect. Simultaneously, the drive rod has two threads with opposite directions of rotation. Rotating the drive rod allows the fixator to move closer to or further away from the two fixing blocks, enabling the orthopedic external fixator to achieve both bone lengthening and compression treatment methods, and to flexibly switch between these two methods. This enhances the versatility and treatment flexibility of the orthopedic external fixator.

[0022] (2) Furthermore, the two fixing blocks are fixed to the drive rod and also to the fixing rod. The fixing rod guides and fixes the fixing blocks. The guide rod ensures that the fixing blocks move with the fixing rod as a reference. At the same time, the fixing rod also fixes and supports the fixing blocks, ensuring the stability of the fixing blocks' movement and improving the stability of the entire orthopedic external fixator.

[0023] (3) Furthermore, the fixing block is also provided with a first threaded fastener and a second threaded fastener to lock the position of the fixing block on the drive rod. Attached Figure Description

[0024] Figure 1 The diagram shows the front view of the orthopedic external fixator of this invention.

[0025] Figure 2 The diagram shows a top view of the orthopedic external fixator of this invention.

[0026] Marked in the attached diagram:

[0027] 1. Fixed rod; 2. Drive rod; 21. First section; 22. Shoulder; 23. Second section; 24. Optical shaft section; 25. Slot; 3. Fixed block; 31. First fastening hole; 311. First threaded fastener; 32. Second fastening hole; 321. Second threaded fastener; 4. Bone needle; 5. Bone. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0029] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Figure 1 This diagram shows the front view of the orthopedic external fixator of this invention. Please refer to it. Figure 1An orthopedic external fixator includes a drive rod 2, a fixation block 3, and bone pins 4. The drive rod 2 is threaded. The fixation block 3 has threaded holes for threaded connection to the drive rod 2. Two fixation blocks 3 are provided. Bone pins 4 are mounted on the fixation blocks 3. Rotating the drive rod 2 adjusts the position of the fixation blocks 3, thereby adjusting the position of the bone pins 4 on the fixation blocks 3. The position adjustment of the bone pins 4 is convenient, improving treatment flexibility and helping doctors better control the alignment and fixation of the bone pins 4, thus improving treatment effectiveness. The drive rod 2 includes a first segment 21 and a second segment 23. The threads on the first segment 21 and the second segment 23 have opposite directions of rotation. One fixation block 3 is located on the first segment 21, and the other fixation block 3 is located on the second segment 23. Rotating the drive rod 2 allows it to move closer to or further away from the two fixation blocks 3, enabling the orthopedic external fixator to achieve both lengthening and compression of the bone 5, and to flexibly switch between these two treatment methods. This enhances the versatility and treatment flexibility of the orthopedic external fixator.

[0031] Figure 1 The diagram shows the front view of the orthopedic external fixator of this invention. Figure 2 This diagram shows a top view of the orthopedic external fixator of this invention. Please refer to it. Figure 1 and Figure 2 A first fastening hole 31 is provided on the fixing block 3. A first threaded fastener 311 is provided in the first fastening hole 31, and one end of the first threaded fastener 311 abuts against the drive rod 2. The first threaded fastener 311 can be used to conveniently restrict the movement of the fixing block 3 along the first threaded fastener 311, and determine the positional relationship between the fixing block 3 and the drive rod 2.

[0032] Preferably, a second fastening hole 32 is provided on the fixing block 3. A second threaded fastener 321 is provided in the second fastening hole 32, and one end of the second threaded fastener 321 abuts against the fixing rod 1. The second threaded fastener 321 can be used to conveniently restrict the movement of the fixing block 3 along the second threaded fastener 321, and determine the positional relationship between the fixing block 3 and the fixing rod 1.

[0033] In this embodiment, the second fastening hole 32 is located at the end of the fixing block 3 away from the bone 5. This avoids interference between the second threaded fastener 321 and the bone 5, improving patient comfort and thus enhancing the treatment effect.

[0034] Please refer to Figure 1 It also includes a fixing rod 1. The fixing rod 1 passes through two fixing blocks 3. The fixing rod 1 is parallel to the drive rod 2. The two fixing blocks 3 are fixed to the drive rod 2 and also to the fixing rod 1. The fixing rod 1 guides and fixes the fixing blocks 3. Through the guide rod, it ensures that the fixing blocks 3 move with the fixing rod 1 as the reference. At the same time, the fixing rod 1 also fixes and supports the fixing blocks 3, ensuring the stability of the movement of the fixing blocks 3 and improving the stability of the entire orthopedic external fixator.

[0035] Please refer to Figure 1 Each fixation block 3 has two bone pins 4. The two bone pins 4 are arranged parallel to each other and in the same direction. The bone pins 4 are the connection points between the orthopedic external fixator and the bone 5. Increasing the number of bone pins 4 increases the number of connection points, thereby making the entire external fixator system more stable. A greater number of bone pins 4 can also provide a wider range of fixation, allowing the bone 5 to be more fully fixed and improving the treatment effect.

[0036] In this embodiment, the bone needle 4 is positioned perpendicular to the drive rod 2. That is, when the drive rod 2 is rotated to move the fixing block 3, the bone needle 4 translates along the drive rod 2, making it easier for the treatment personnel to determine the fixed position of the bone needle 4.

[0037] Please refer to Figure 1 The drive rod 2 has unthreaded optical shaft sections 24 at both ends. The optical shaft sections 24 can easily extend into the screw holes of the fixing block 3, simplifying the fixing between the drive rod 2 and the fixing block 3.

[0038] Preferably, the drive rod 2 has slots 25 on both ends along its length. The slots 25 facilitate the connection between the power source and the drive rod 2, thereby transmitting torque.

[0039] In this embodiment, a shoulder 22 is provided between the first segment 21 and the second segment 23. The shoulder 22 restricts the movement range of the fixing block 3 on the drive rod 2, preventing the fixing block 3 on the first segment 21 or the second segment 23 from moving to the second segment 23 or the first segment 21. At the same time, it avoids collision interference caused by the two fixing blocks 3 being too close together.

[0040] The specific workflow of this utility model is as follows:

[0041] Loosen the first threaded fastener 311 and the second threaded fastener 321, and then rotate the drive rod 2. The threaded drive fixing block 3 on the drive rod 2 moves along the fixing rod 1 until the two fixing blocks 3 move to the preset position. Retighten the first threaded fastener 311 and the second threaded fastener 321 so that the first threaded fastener 311 abuts against the drive rod 2 and the second threaded fastener 321 abuts against the fixing rod 1, and finally the bone pin 4 and the bone 5 can be fixed.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An orthopedic external fixator, characterized in that, The orthopedic external fixation frame comprises a driving rod, a fixing block and a bone needle; The driving rod is provided with a thread; The fixing block is provided with a screw hole for threadedly connecting the driving rod; the fixing block is provided with two blocks; The bone needle is arranged on the fixing block; The driving rod comprises a first segment and a second segment; the threads on the first segment and the second segment are in opposite directions; one of the fixing blocks is arranged on the first segment and the other fixing block is arranged on the second segment.

2. The orthopedic external fixator of claim 1, wherein: The fixing block is provided with a first fastening hole; a first threaded fastener is arranged in the first fastening hole, and one end of the first threaded fastener abuts against the driving rod.

3. The orthopedic external fixator of claim 1, wherein: The fixing rod is arranged through the two fixing blocks; the fixing rod is parallel to the driving rod.

4. The orthopaedic external fixation frame of claim 3, wherein: The fixing block is provided with a second fastening hole; a second threaded fastener is arranged in the second fastening hole, and one end of the second threaded fastener abuts against the fixing rod.

5. The orthopaedic external fixation frame of claim 4, wherein: The second fastening hole is arranged at the end of the fixing block away from the bone.

6. The orthopedic external fixator of claim 1, wherein: Each of the fixing blocks is provided with two bone needles; the two bone needles are arranged in parallel and in the same direction.

7. The orthopedic external fixator of claim 1, wherein: The bone needle is arranged perpendicularly to the driving rod.

8. The orthopedic external fixator of claim 1, wherein: An axle shoulder is arranged between the first segment and the second segment.

9. The orthopedic external fixator of claim 1, wherein: The driving rod is provided with a non-threaded light axle segment at each end.

10. The orthopedic external fixator of claim 1, wherein: The length direction end faces of the driving rod are respectively provided with a clamping groove.

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