Multi-row nail hole locking type metal bone fracture plate

Abstract

The utility model provides a multi-row nail hole locking type metal bone fracture plate, which relates to the technical field of medical instruments and comprises a bone fracture plate a, a bone fracture plate b is symmetrically arranged on one side of the bone fracture plate a, an extension plate is fixedly connected to one end, close to the bone fracture plate b, of the bone fracture plate a, and a storage groove matched with the extension plate for use is formed in one side of the bone fracture plate b. The top and the bottom of the bone fracture plate a and the top and the bottom of the bone fracture plate b are each provided with two bone holding claws. The bone fracture plate a is pulled to drive the extension plate to move out of the storage groove, and then the bone fracture plate a and the bone fracture plate b are extended, so that the length of the bone fracture plate can be adjusted to better adapt to individual differences according to different bone sizes, fracture types and operation requirements of patients, and bolts are screwed out to relieve fixation of the sliding blocks; the bone holding claws are moved to drive the sliding blocks to move in the sliding grooves, so that the distance between the rib bone holding claws is adjusted according to the actual fracture condition, the sliding blocks are prevented from falling off from the sliding grooves through the arrangement of the guide blocks and the guide grooves, and the sliding blocks can move horizontally.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a multi-row nail hole locking type metal bone plate. Background Technology

[0002] Rib fractures can be caused by external violence, indirect violence, or pathological changes. Clinically, localized pain is the most prominent symptom, which worsens with coughing, deep breathing, or body rotation. In severe cases, it can impair blood return and circulatory function, leading to or exacerbating shock. In short, rib fractures cause significant physical and psychological suffering. In rib fracture repair or thoracic reconstruction surgery after rib removal, rib plates are commonly used. These plates, equipped with claws, are surgically implanted and fixed to the fracture site. Post-operatively, the need for further removal is determined based on the patient's age, bone condition, post-operative response, and recovery progress. In addition to bone plates, existing bone plates are mostly of fixed length. However, each patient's individual differences and surgical needs vary, requiring the use of bone plates of corresponding lengths to meet surgical requirements. This leads to hospitals needing to store different types and quantities of bone plates, with larger and smaller sizes being used less frequently, thus increasing medical costs and wasting resources. At the same time, existing rib bone plates are usually fixed with claws for rib fixation. The distance between the claws on such rib plates is fixed. In actual surgical procedures, it is not possible to effectively and reasonably avoid the fracture or injury site of the rib, increasing the pain and other complications for the injured patient. Utility Model Content

[0003] To address the aforementioned technical problems, this invention provides a multi-row nail hole locking metal bone plate, which solves the problem of needing to stock a large number of bone plates of different specifications due to individual patient differences.

[0004] The purpose and effect of this multi-row nail hole locking metal bone plate are achieved by the following specific technical means:

[0005] A multi-row nail hole locking type metal bone plate includes: bone plate a, bone plate b symmetrically arranged on one side of bone plate a, an extension plate fixedly connected to one end of bone plate a near bone plate b, a storage groove for use with the extension plate on one side of bone plate b, and two bone-holding claws respectively provided at the top and bottom of bone plate a and bone plate b.

[0006] Furthermore, a baffle is fixedly connected inside the storage groove near the bone plate a. A travel groove is provided on the extension plate to allow the baffle to move. Several symmetrically arranged toothed grooves are provided on opposite sides of the inner wall of the travel groove. One side of each toothed groove is inclined towards the bone plate b.

[0007] Furthermore, the baffle has two symmetrically arranged movable cavities inside, and each of the two movable cavities has a locking block slidably connected inside. One end of the locking block is connected to the movable cavity by a spring, and one end of the locking block passes through the movable cavity and extends into the tooth groove. The extended end of the locking block is inclined towards the center and matches the tooth groove.

[0008] Furthermore, the top and bottom of the bone plate a and the bone plate b are respectively provided with sliding grooves, and two sliders are slidably connected inside the sliding grooves. The two sliders on the same horizontal line are respectively connected to the two bone grabs.

[0009] Furthermore, two guide grooves are respectively opened on opposite sides of the slide groove, and guide blocks are respectively fixedly connected to opposite sides of the slider, and the guide blocks are respectively slidably connected in the guide grooves.

[0010] Furthermore, the bone plate a and the bone plate b are provided with a number of equally spaced threaded holes on their outer surfaces near the two sliding grooves. The two sliders are provided with three fixing holes that are used in conjunction with the threaded holes. Bolts are threaded into the threaded holes, and one end of the bolts passes through the fixing holes.

[0011] Furthermore, the bone plate a and the bone plate b are respectively provided with a plurality of locking holes, which are evenly arranged in three columns, and the locking holes in the middle column are staggered from the locking holes in the other two columns.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In this utility model, by pulling the bone plate a, the extension plate is moved out from the storage slot, thereby extending bone plate a and bone plate b. Thus, the length of the bone plate can be adjusted according to the different bone size, fracture type and surgical needs of each patient, so as to better adapt to individual differences, ensure the best fit and fixation effect, reduce the types and quantities of bone plates that the hospital needs to store, thereby reducing medical costs and resource waste.

[0014] 2. In this utility model, the bolts are unscrewed to release the fixation of the slider. The slider is moved inside the groove by moving the rib-holding grabber. The guide block and guide groove prevent the slider from falling out of the groove and enable the slider to move horizontally. The spacing of the rib-holding grabber can be adjusted according to the actual fracture situation, which can effectively and reasonably avoid the fracture site or injury location of the rib, reducing the pain and other complications caused to the injured person.

[0015] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0018] Figure 3 This is a demonstration of the extension plate of this utility model.

[0019] Figure 4 This is a schematic diagram of the bone plate a structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the bone-holding grasp structure of this utility model.

[0021] Figure 6 This is the utility model Figure 2 Enlarged view of point A in the middle.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Bone plate a; 11. Bone plate b; 12. Extension plate; 13. Storage groove; 14. Bone grabber; 2. Baffle; 21. Stroke groove; 22. Toothed groove; 23. Movable cavity; 24. Locking block; 25. Spring; 3. Slide groove; 31. Slider; 32. Guide groove; 33. Guide block; 34. Threaded hole; 35. Fixing hole; 36. Bolt; 4. Locking hole. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 6 As shown:

[0027] This utility model provides a multi-row nail hole locking type metal bone plate, including: bone plate a1, bone plate b11 symmetrically arranged on one side of bone plate a1, extension plate 12 fixedly connected to one end of bone plate a1 near bone plate b11, storage groove 13 for use with extension plate 12 opened on one side of bone plate b11, two bone holding claws 14 respectively provided on the top and bottom of bone plate a1 and bone plate b11, and a plurality of locking holes 4 respectively opened on bone plate a1 and bone plate b11, the plurality of locking holes 4 are evenly arranged in three rows, and the locking holes 4 in the middle row are staggered from the other two rows.

[0028] In use, the extension plate 12 is pulled out to adjust the length according to the required length. Then, the bone plate a1 and bone plate b11 are bent according to the curvature of the rib to fit against the outside of the rib. Then, the bone catcher 14 is bent to hold the other side of the rib, thus completing the installation. Finally, the screws are aligned with the locking holes 4 and screwed in to fix it. The design of multiple rows of locking holes 4 allows doctors to flexibly select the most suitable screw holes for fixation according to the fracture type, location and anatomical structure of the bone, thereby achieving more accurate bone alignment and more secure fixation.

[0029] The storage slot 13 is fixedly connected to a baffle 2 near the bone plate a1. The extension plate 12 has a travel groove 21 for the baffle 2 to move. The inner wall of the travel groove 21 has several symmetrically arranged toothed grooves 22 on opposite sides. One side of each toothed groove 22 is inclined toward the bone plate b11. The baffle 2 has two symmetrically arranged movable cavities 23. Each movable cavity 23 has a locking block 24 slidably connected inside. One end of the locking block 24 is connected to the movable cavity 23 by a spring 25. One end of the locking block 24 passes through the movable cavity 23 and extends into the toothed groove 22. The extended end of the locking block 24 is inclined toward the center and matches the toothed groove 22.

[0030] When adjusting the length of the extension plate 12, the bone plate a1 is pulled to one side, and the bone plate a1 moves inside the receiving groove 13. The baffle 2 prevents the extension plate 12 from completely coming out of the receiving groove 13. When the extension plate 12 moves, the toothed groove 22 on the inner side engages with the locking block 24. Due to the structural design of the toothed groove 22 and the locking block 24, the extension plate 12 can only be pulled out to the left. When pulled out, the inclined surface on one side of the toothed groove 22 is tangent to the matching inclined surface on one side of the locking block 24, which will push the locking block 24 back into the movable cavity 23. When the spring 25 is compressed, it contracts and stores energy. When the locking block 24 moves into the next tooth groove 22, the locking block 24 is pushed into the tooth groove 22 again under the action of the spring 25. After the length is adjusted, since the locking block 24 and the other side of the tooth groove 22 are perpendicular to the ground, the locking block 24 will block the tooth groove 22 and prevent the extension plate 12 from retracting back into the storage groove 13. After the adjustment is completed, the extension plate 12 will also bend according to the shape of the rib, so that the tooth groove 22, the baffle 2, and the locking block 24 will deform and further prevent the extension plate 12 from retracting.

[0031] Among them, the top and bottom of the bone plate a1 and bone plate b11 are respectively provided with sliding grooves 3, and two sliders 31 are slidably connected inside the sliding grooves 3. The two sliders 31 on the same horizontal line are respectively connected to two bone grabs 14. Two guide grooves 32 are respectively provided on opposite sides of the sliding grooves 3, and guide blocks 33 are respectively fixedly connected on opposite sides of the sliders 31. The guide blocks 33 are slidably connected in the guide grooves 32. Several threaded holes 34 are respectively provided on the outside of the bone plate a1 and bone plate b11 near the two sliding grooves 3. Three fixing holes 35 are respectively provided on the two sliders 31 to match the threaded holes 34. Bolts 36 are threadedly connected inside the threaded holes 34, and one end of the bolts 36 passes through the fixing holes 35.

[0032] When the position of the rib catcher 14 needs to be adjusted, unscrew the three bolts 36 on the corresponding slider 31 to release the fixed state of the slider 31. Then, pull the rib catcher 14 as needed to move the slider 31 inside the slide groove 3. When the slider 31 moves, it drives the guide block 33 to move inside the guide groove 32, which serves to move the slider 31 horizontally and restrict the slider 31 to prevent it from falling out of the slide groove 3. When it moves to the required position, fine-tune the slider 31 so that the fixing hole 35 on the slider 31 is aligned with the threaded hole 34. At this time, screw the three bolts 36 into the three fixing holes 35 to fix the slider 31 and fix the rib catcher 14 after the position is adjusted. The spacing of the rib catcher 14 can be adjusted according to the actual fracture situation.

[0033] The specific usage and function of this embodiment are as follows:

[0034] When the position of the rib clamp 14 needs to be adjusted, unscrew the three bolts 36 on the corresponding slider 31 to release the slider 31 from its fixed state. Then, pull the rib clamp 14 as needed to move the slider 31 inside the slide groove 3. When the slider 31 moves, it drives the guide block 33 to move inside the guide groove 32, which serves to allow the slider 31 to move horizontally and to restrict the slider 31 from falling out of the slide groove 3. When it moves to the desired position, fine-tune the slider 31 so that the fixing hole 35 on the slider 31 is aligned with the threaded hole 34. At this time, screw the three bolts 36 into the three fixing holes 35 to fix the slider 31 and fix the rib clamp 14 after adjustment. Adjust the spacing of the rib clamp 14 according to the actual fracture condition. Then, pull out the extension plate 12 to adjust the length according to the required length. Then, use a tool to bend the bone plate a1 and bone plate b11 according to the curvature of the rib. The bone is then bent to fit against the outer side of the rib. The bone catcher 14 is then bent using a tool to hold the other side of the rib, completing the installation. Finally, screws are aligned with the locking holes 4 and screwed in for fixation. The multi-row locking hole design allows doctors to flexibly select the most suitable screw holes for fixation based on the fracture type, location, and anatomical structure of the bone, achieving more precise bone alignment and stronger fixation. Next, bone plates a1 and b11 are bent according to the curvature of the rib to fit against the outer side of the rib. The bone catcher 14 is then bent using a tool to hold the other side of the rib, completing the installation. Finally, screws are aligned with the locking holes 4 and screwed in for fixation. The multi-row locking hole design allows doctors to flexibly select the most suitable screw holes for fixation based on the fracture type, location, and anatomical structure of the bone, achieving more precise bone alignment and stronger fixation.

Claims

1. A multi-row nail hole locking type metal bone plate, characterized in that, include: Bone plate a (1), bone plate b (11) is symmetrically arranged on one side of bone plate a (1), extension plate (12) is fixedly connected to one end of bone plate a (1) near bone plate b (11), storage groove (13) for use with extension plate (12) is opened on one side of bone plate b (11), and two bone-holding claws (14) are respectively provided at the top and bottom of bone plate a (1) and bone plate b (11).

2. The multi-row nail hole locking type metal bone plate as described in claim 1, characterized in that, A baffle (2) is fixedly connected inside the storage slot (13) near the bone plate a (1). The extension plate (12) has a travel groove (21) that allows the baffle (2) to move. Several symmetrically arranged toothed grooves (22) are respectively opened on the inner wall of the travel groove (21) on opposite sides. One side of each toothed groove (22) is inclined towards the bone plate b (11).

3. The multi-row nail hole locking type metal bone plate as described in claim 2, characterized in that, The baffle (2) has two symmetrically arranged movable cavities (23) inside. Each of the two movable cavities (23) is slidably connected to a locking block (24). A spring (25) is connected between one end of the locking block (24) and the movable cavity (23). One end of the locking block (24) passes through the movable cavity (23) and extends into the tooth groove (22). The extended end of the locking block (24) is inclined towards the center and matches the tooth groove (22).

4. The multi-row nail hole locking type metal bone plate as described in claim 1, characterized in that, The top and bottom of the bone plate a (1) and the bone plate b (11) are respectively provided with sliding grooves (3), and two sliders (31) are slidably connected inside the sliding grooves (3). The two sliders (31) on the same horizontal line are respectively connected to the two bone grabs (14).

5. The multi-row nail hole locking type metal bone plate as described in claim 4, characterized in that, The slide (3) has two guide grooves (32) on opposite sides, and the slider (31) is fixedly connected to guide blocks (33) on opposite sides. The guide blocks (33) are slidably connected in the guide grooves (32).

6. The multi-row nail hole locking type metal bone plate as described in claim 5, characterized in that, The bone plate a (1) and the bone plate b (11) are provided with a number of threaded holes (34) that are equally spaced on the outside of the two sliding grooves (3). The two sliders (31) are provided with three fixing holes (35) that are used in conjunction with the threaded holes (34). The threaded holes (34) are threaded with bolts (36), and one end of the bolts (36) passes through the fixing holes (35).

7. The multi-row nail hole locking type metal bone plate as described in claim 2, characterized in that, The bone plate a (1) and the bone plate b (11) are respectively provided with a number of locking holes (4). The number of locking holes (4) are evenly arranged in three columns, and the locking holes (4) in the middle column are staggered from the locking holes (4) in the other two columns.

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