Angle-adjustable external fixation splint for orthopedics department
By designing an adjustable-angle orthopedic external fixation splint, the splint angle can be adjusted using a pivot and adjustment mechanism, and the patient's leg can be fixed with the help of a protective mechanism. This solves the limitation problem of existing splints when adjusting the angle and achieves better support and protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-04-14
AI Technical Summary
Existing leg splints are difficult to adjust and limit when the angle is raised and rotated, causing inconvenience for patients.
An orthopedic external fixation splint was designed, comprising a first splint, a pivot, and an adjustment mechanism. The angle between the first splint and the second splint is adjusted by the adjustment mechanism, and the protective mechanism is used to bind and fix the patient's leg to prevent loosening and falling off.
It effectively supports and fixes the patient's leg joints, preventing the splint from loosening and falling off during angle adjustment, thus improving the convenience and safety of use.
Smart Images

Figure CN224112850U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of orthopedic rehabilitation treatment technology, and in particular to an adjustable-angle orthopedic external fixation splint. Background Technology
[0002] Adjustable-angle orthopedic splints are medical devices used to immobilize limbs after fractures or joint injuries. They are usually made of lightweight, strong, and durable materials. Their design allows for adjustment of the fixation angle according to the patient's needs, helping to correct the alignment of the fracture site, promote healing, and reduce complications. They are quite common in daily life.
[0003] Existing technologies, such as the utility model patent with publication number CN215307174U, disclose a splint assembly for fixing severed limbs in orthopedic patients. This patent includes a fixation mechanism and an adjustment mechanism. The advantages of this utility model are: the fixation mechanism enables multi-node fixation of the splint assembly, making the whole assembly interconnected, facilitating installation and disassembly, and effectively improving the efficiency of limb fixation; the adjustment mechanism allows for selection of different lengths based on the patient's limb condition, ensuring each fixation node fits the patient's severed limb perfectly, increasing its practicality; since severed limbs often deform, the adjustment mechanism can adjust the fixation angle in some cases to maintain the limb in its initial state, facilitating subsequent correction and surgery; the end sleeve and restraint ring plate reinforce the fixation of the assembly on the residual limb, and can simultaneously fix certain parts of the residual limb; the rotation control block facilitates adjustment of the tightness of the upper fixation of the assembly.
[0004] In daily use, it has been found that for orthopedic diseases, especially fractures and other orthopedic conditions, splints are generally needed to fix the legs in order to prevent the condition from aggravating. However, the existing leg splints are relatively simple, and when the patient's leg joints are raised or rotated, it will be inconvenient to adjust and limit the splint.
[0005] This application provides a technical solution to the technical problem, aiming to provide those skilled in the art with a variety of solutions to the problem. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies. For orthopedic diseases, especially fractures, splints are generally needed to fix the legs to prevent the condition from worsening. However, existing leg splints are relatively simple, and it is inconvenient to adjust and limit the splint when the patient's leg joints are raised or rotated.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable-angle orthopedic external fixation splint, comprising a first splint, a rotating shaft, and an adjustment mechanism. A second splint is provided at one end of the first splint. The rotating shaft is located at the ends of the first and second splints that are close to each other. The rotating shaft is rotatably connected to the first splint and fixedly connected to the second splint respectively by means of the adjustment mechanism. The adjustment mechanism includes two fixed plates, one end of each of the two fixed plates being fixedly connected to the surface of the second splint. The two fixed plates are located on both sides of the second splint. The ends of the fixed plates away from the second splint are fixedly connected to the side wall of the rotating shaft. Adjustment plates are fixedly connected to both ends of the first splint near the rotating shaft. The ends of the adjustment plates away from the first splint are rotatably connected to the side wall of the rotating shaft. Adjustment frames are fixedly connected to both ends of the rotating shaft. A sliding rod is slidably connected to the inner wall of the adjustment frame. One end of the sliding rod is fixedly connected to the surface of the adjustment plate. The arc surface of the sliding rod is threadedly connected to the adjustment shaft.
[0008] The effect achieved by the above components is as follows: during leg rehabilitation training, the patient's leg joints will be clamped and protected with the help of orthopedic fixation splints. At this time, the patient's leg joints can be supported by the first splint and the second splint. At the same time, the angle between the first splint and the second splint can be adjusted by the adjustment mechanism, which helps the patient to perform limb rehabilitation operations better.
[0009] Preferably, the arc surface of the slide rod is fitted with a protective ring, and the surface of the protective ring abuts against one side of the adjusting shaft.
[0010] The effect achieved by the above components is that the protective ring can compress and protect the adjusting shaft, preventing it from becoming loose and falling off.
[0011] Preferably, both the first clamping plate and the second clamping plate have a plurality of through holes on their surfaces, and the plurality of through holes are evenly distributed on the surfaces of the first clamping plate and the second clamping plate.
[0012] The effect achieved by the above-mentioned components is that the through holes can effectively increase the airflow during patient use, making it easier to operate and use.
[0013] Preferably, the two rotating shafts are fixedly connected to the same guide post on the side close to each other, and the arc surface of the guide post is fixedly connected with a plurality of protrusions, the protrusions being sponge blocks.
[0014] The effect achieved by the above components is that the sponge material protrusions fixed by the arc surface of the guide post can provide better protection and support.
[0015] Preferably, the surfaces of the first and second clamping plates are provided with a plurality of protective mechanisms. The protective mechanism includes a positioning frame, the bottom end of which is fixedly connected to the side wall of the second clamping plate. A restraining strap is rotatably connected to the inner wall of the positioning frame. A connecting frame is fixedly connected to the end of the second clamping plate away from the positioning frame. A bearing plate is fixedly connected to the bottom end of the inner wall of the connecting frame. A movable shaft is threadedly connected to the upper surface of the connecting frame. A movable plate is rotatably connected to the bottom end of the movable shaft. The cross-sections of the movable plate and the bearing plate are tapered. The surface of the restraining strap slides through the inner wall of the connecting frame. The restraining strap engages with the lower surface of the movable plate and the upper surface of the bearing plate.
[0016] The effect achieved by the above components is that when binding and limiting the patient's leg joints, the protective mechanism set on the surface of the first and second splints can be used to bind and protect the patient's legs with the binding straps, so as to prevent loosening and falling off when using the first and second splints.
[0017] Preferably, a plurality of protective blocks are fixedly connected to the surface of the restraint strap, and the protective blocks are silicone blocks.
[0018] The effect achieved by the above-mentioned components is that the silicone protective blocks can better compress, protect and fix the limbs, preventing the limbs from slipping and falling off between the surface of the limbs and the restraint straps.
[0019] Preferably, a friction pad, which is a rubber pad, is fixedly connected to the conical tooth surface at the upper end of the bearing plate.
[0020] The effect achieved by the above components is that the friction pad made of rubber can increase friction, making it easier to squeeze and fix the restraint strap.
[0021] In summary, the beneficial effects of this utility model are as follows:
[0022] In this invention, the rotational limit between the first and second splints is achieved by operating the adjustment mechanism, which makes it convenient to place the patient's leg on the first and second splints and adjust the angle. By sliding between the adjustment frames and the slide rod at both ends of the rotating shaft, the adjustment shaft is used to compress and fix the leg, thereby effectively and conveniently supporting and protecting the patient's leg fracture.
[0023] In this invention, by operating the protective mechanism, the first and second splints are used to bind and fix the fracture site of the patient's leg. The binding straps on the surfaces of the first and second splints are used to bind and limit the patient's leg joints, which helps to better protect the patient's leg joints and prevent slippage and fall. Attached Figure Description
[0024] Appendix Figure 1This is a three-dimensional structural schematic diagram of the present invention;
[0025] Appendix Figure 2 This is a partial structural diagram of the three-dimensional structure of this utility model;
[0026] Appendix Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;
[0027] Appendix Figure 4 This is a schematic diagram of the protective mechanism of this utility model.
[0028] The following are the reference numerals in the attached diagram: 1. First clamping plate; 2. Second clamping plate; 3. Rotating shaft; 4. Adjusting mechanism; 41. Fixed plate; 42. Adjusting plate; 43. Adjusting frame; 44. Slide rod; 45. Protective ring; 46. Adjusting shaft; 47. Guide post; 48. Protrusion; 49. Through hole; 5. Protective mechanism; 51. Positioning frame; 52. Restraint strap; 53. Protective block; 54. Connecting frame; 55. Moving shaft; 56. Bearing plate; 57. Friction pad; 58. Moving plate. Detailed Implementation
[0029] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.
[0030] Reference Figures 1 to 4 As shown, this utility model provides a technical solution: an adjustable angle orthopedic external fixation splint, including a first splint 1, a rotating shaft 3 and an adjustment mechanism 4. A second splint 2 is provided at one end of the first splint 1. The rotating shaft 3 is located at the end of the first splint 1 and the second splint 2 that are close to each other. The rotating shaft 3 is rotatably connected to the first splint 1 and fixedly connected to the second splint 2 by means of the adjustment mechanism 4. A plurality of protective mechanisms 5 are provided on the surface of the first splint 1 and the second splint 2.
[0031] The specific settings and functions of its adjustment mechanism 4 and protection mechanism 5 will be explained below.
[0032] Reference Figure 2 and Figure 3As shown in this embodiment: the adjusting mechanism 4 includes two fixed plates 41, one end of each fixed plate 41 is fixedly connected to the surface of the second clamping plate 2, the two fixed plates 41 are respectively located on both sides of the second clamping plate 2, the end of the fixed plate 41 away from the second clamping plate 2 is fixedly connected to the side wall of the rotating shaft 3, adjusting plates 42 are fixedly connected to both ends of the first clamping plate 1 near the rotating shaft 3, the end of the adjusting plate 42 away from the first clamping plate 1 is rotatably connected to the side wall of the rotating shaft 3, adjusting frames 43 are fixedly connected to both ends of the rotating shaft 3, and sliding rods 44 are slidably connected to the inner wall of the adjusting frames 43. One end of the slide rod 44 is fixedly connected to the surface of the adjusting plate 42. The arc surface of the slide rod 44 is threadedly connected to the adjusting shaft 46. The arc surface of the slide rod 44 is fitted with a protective ring 45. The surface of the protective ring 45 abuts against one side of the adjusting shaft 46. The surfaces of the first clamping plate 1 and the second clamping plate 2 are each provided with several through holes 49. The several through holes 49 are evenly distributed on the surfaces of the first clamping plate 1 and the second clamping plate 2. The two rotating shafts 3 are fixedly connected to the same guide post 47 on the side close to each other. The arc surface of the guide post 47 is fixedly connected with several protrusions 48. The protrusions 48 are sponge blocks.
[0033] Reference Figure 2 and Figure 4 As shown in this embodiment: the protective mechanism 5 includes a positioning frame 51, the bottom end of which is fixedly connected to the side wall of the second clamping plate 2, a restraining strap 52 is rotatably connected to the inner wall of the positioning frame 51, a connecting frame 54 is fixedly connected to the end of the second clamping plate 2 away from the positioning frame 51, a bearing plate 56 is fixedly connected to the bottom end of the inner wall of the connecting frame 54, a moving shaft 55 is threadedly connected to the upper surface of the connecting frame 54, a moving plate 58 is rotatably connected to the bottom end of the moving shaft 55, the moving plate 58 and the bearing plate 56 have a conical tooth cross section, the surface of the restraining strap 52 slides through the inner wall of the connecting frame 54, the restraining strap 52 is engaged with the lower surface of the moving plate 58 and the upper surface of the bearing plate 56, a number of protective blocks 53 are fixedly connected to the surface of the restraining strap 52, the protective blocks 53 are silicone blocks, and a friction pad 57 is fixedly connected to the conical tooth surface at the upper end of the bearing plate 56, the friction pad 57 is a rubber pad.
[0034] Detailed Instructions for Use: During rehabilitation training of a patient's leg joints, orthopedic splints will be used to clamp and protect the leg joints. The patient's leg is placed on the surfaces of the first splint 1 and the second splint 2. Then, the adjusting plates 42 on both sides of the upper end of the first splint 1 are rotated, allowing the adjusting plates 42 to rotate along the rotating shaft 3. At this time, the adjusting frames 43 on both sides of the rotating shaft 3 move and rotate with the sliding rods 44 on the surface of the adjusting plates 42 until the sliding rods 44 rotate to the designated position. Then, the adjusting shaft 46 on the surface of the sliding rods 44 is rotated, allowing the adjusting shaft 46 to adjust and fix the position of the entire first splint 1. At this point, a clamping mechanism is formed between the first splint 1 and the second splint 2. At a certain angle, rotation is no longer possible. Then, the protective mechanism 5 is used to bind and protect the patient's leg joints during rehabilitation training. At this time, the binding straps 52 on the surface of the first splint 1 and the second splint 2 are pulled, allowing one end of the binding strap 52 to slide through the inner wall of the connecting frame 54 until the binding strap 52 contracts and protects the surface of the patient's leg joints. Then, the moving shaft 55 on the surface of the connecting frame 54 is rotated, allowing the moving plate 58 and the bearing plate 56 at the bottom of the moving shaft 55 to squeeze and fix the two sides of the binding strap 52. At this time, the entire binding strap 52 will be unable to stretch or slide, and the entire patient's leg joints will be easily fixed and protected.
Claims
1. An adjustable-angle orthopedic external fixation splint, comprising a first splint (1), a rotating shaft (3), and an adjustment mechanism (4), characterized in that: A second clamping plate (2) is provided at one end of the first clamping plate (1). The rotating shaft (3) is located at the end of the first clamping plate (1) and the second clamping plate (2) that are close to each other. The rotating shaft (3) is rotatably connected to the first clamping plate (1) and fixedly connected to the second clamping plate (2) by means of an adjusting mechanism (4). The adjusting mechanism (4) includes two fixing plates (41). One end of each of the two fixing plates (41) is fixedly connected to the surface of the second clamping plate (2). The two fixing plates (41) are located on both sides of the second clamping plate (2). The fixing plates (41) are far away from the second clamping plate (2). One end of the clamping plate (2) is fixedly connected to the side wall of the rotating shaft (3). The first clamping plate (1) is fixedly connected to both ends of the rotating shaft (3) with an adjusting plate (42). The end of the adjusting plate (42) away from the first clamping plate (1) is rotatably connected to the side wall of the rotating shaft (3). The two ends of the rotating shaft (3) are fixedly connected to an adjusting frame (43). The inner wall of the adjusting frame (43) is slidably connected to a slide rod (44). One end of the slide rod (44) is fixedly connected to the surface of the adjusting plate (42). The arc surface of the slide rod (44) is threadedly connected to an adjusting shaft (46).
2. The adjustable-angle orthopedic external fixation splint according to claim 1, characterized in that: The arc surface of the slide rod (44) is fitted with a protective ring (45), and the surface of the protective ring (45) abuts against one side of the adjusting shaft (46).
3. The adjustable-angle orthopedic external fixation splint according to claim 1, characterized in that: The surfaces of the first clamping plate (1) and the second clamping plate (2) are provided with a plurality of through holes (49), and the plurality of through holes (49) are evenly distributed on the surfaces of the first clamping plate (1) and the second clamping plate (2).
4. The adjustable-angle orthopedic external fixation splint according to claim 1, characterized in that: The two rotating shafts (3) are fixedly connected to the same guide post (47) on the side close to each other. The arc surface of the guide post (47) is fixedly connected to several protrusions (48), and the protrusions (48) are sponge blocks.
5. The adjustable-angle orthopedic external fixation splint according to claim 1, characterized in that: The surfaces of the first clamping plate (1) and the second clamping plate (2) are provided with a plurality of protective mechanisms (5). The protective mechanism (5) includes a positioning frame (51). The bottom end of the positioning frame (51) is fixedly connected to the side wall of the second clamping plate (2). The inner wall of the positioning frame (51) is rotatably connected to a restraining strap (52). The end of the second clamping plate (2) away from the positioning frame (51) is fixedly connected to a connecting frame (54). The bottom end of the inner wall of the connecting frame (54) is fixedly connected to a bearing plate (56). The upper surface of the connecting frame (54) is threadedly connected to a moving shaft (55). The bottom end of the moving shaft (55) is rotatably connected to a moving plate (58). The cross-section of the moving plate (58) and the bearing plate (56) is conical. The surface of the restraining strap (52) slides through the inner wall of the connecting frame (54). The lower surface of the restraining strap (52) and the upper surface of the bearing plate (56) are engaged.
6. The adjustable-angle orthopedic external fixation splint according to claim 5, characterized in that: The surface of the restraint strap (52) is fixedly connected with several protective blocks (53), which are silicone blocks.
7. An adjustable-angle orthopedic external fixation splint according to claim 5, characterized in that: A friction pad (57) is fixedly connected to the conical tooth surface at the upper end of the bearing plate (56), and the friction pad (57) is a rubber pad.
Citation Information
Patent Citations
Sampled limb fixing splint assembly for orthopedic patient
CN215307174U