Angle-adjustable orthopedic fracture fixing device

Abstract

The invention discloses an angle-adjustable orthopedic fracture fixing device, and belongs to the technical field of medical instruments, the orthopedic fracture fixing device comprises a telescopic rod, elastic clamping plates arranged at the two ends of the telescopic rod respectively, and universal structures arranged at the two ends of the telescopic rod respectively and connected with the correspondingly arranged elastic clamping plates; the connecting structure comprises a fixing plate arranged on the universal structure, a clamping plate arranged on the face, away from the universal structure, of the fixing plate and a locking bolt arranged on the fixing plate. According to the angle-adjustable orthopedic fracture fixing device, flexible switching between external fixation of the elastic clamping plate and internal fixation of the kirschner wire can be achieved through the connecting structure, different fracture types can be adapted without changing the whole device, the medical cost and the clinical operation difficulty are reduced, and the angle-adjustable orthopedic fracture fixing device is convenient to use through independent rotation locking of the elastic clamping plate and cooperation of the universal structure. The limb physiological angle and the fracture reduction requirement can be precisely met, and the use flexibility and the fixing precision of the device are further improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically an adjustable-angle orthopedic fracture fixation device. Background Technology

[0002] In orthopedic clinical treatment, fracture fixation is the core link to ensure the stability of fracture ends and promote healing. The adaptability and functional diversity of fixation devices directly affect the treatment effect and patient experience.

[0003] Chinese utility model patent CN213076145U discloses an adjustable orthopedic fracture fixation device. It adjusts to different joint positions and limb movements via a rotating ball within the fixation seat, improving adaptability and flexibility. However, it only provides external fixation based on its own splint structure and cannot provide internal fixation support for comminuted fractures or significantly displaced unstable fractures. This means that in clinical treatment, when the fracture type changes (e.g., from stable to unstable), or when the treatment phase requires switching from external fixation to internal fixation (e.g., strong fixation in the early stages of fracture), medical staff need to replace the entire set of different types of fixation devices. This not only increases the cost of medical equipment but also adds complexity to clinical procedures.

[0004] Therefore, this application provides an adjustable-angle orthopedic fracture fixation device to solve the above-mentioned problems. Summary of the Invention

[0005] This application provides an adjustable-angle orthopedic fracture fixation device, which aims to solve the problems mentioned in the background art. Existing orthopedic fracture fixation devices only have a single external fixation function, which means that when the fracture type changes or the fixation mode needs to be switched in clinical practice, the entire device needs to be replaced, which increases the cost of medical equipment and the complexity of operation.

[0006] To achieve the above objectives, this application provides the following technical solution: an adjustable-angle orthopedic fracture fixation device, comprising a telescopic rod, elastic plates respectively disposed at both ends of the telescopic rod, and a universal structure respectively disposed at both ends of the telescopic rod and connected to the corresponding elastic plates for adjusting the angle of the elastic plates; The orthopedic fracture fixation device also includes a connection structure on the universal structure for the assembly and disassembly of elastic splints or Kirschner screws. The connecting structure includes a fixing plate mounted on the universal joint, a clamping plate mounted on the side of the fixing plate away from the universal joint for clamping Kirschner wires or connecting elastic splints, and a locking bolt mounted on the fixing plate for locking the clamping plate or elastic splints. Through the synergistic action of the fixing plate, clamping plate, and locking bolt in the connecting structure, external fixation can be achieved through elastic splints, and internal fixation can be assisted by directly clamping Kirschner wires. It can flexibly adapt to different fracture types such as stable fractures and unstable fractures without replacing the entire device, reducing medical equipment costs and clinical operation difficulty. At the same time, by using the clamping plate and fixing plate to support the elastic splints and then locking them with the locking bolts, the elastic splints can be rotated and locked individually to achieve individual angle adjustment of each elastic splint. With the cooperation of the universal joint, it can accurately adapt to the physiological angle of the limb and the fracture reduction requirements, further improving the flexibility and fixation accuracy of the device.

[0007] Preferably, to achieve flexible adjustment of the overall length of the device, the telescopic rod includes a sleeve rod, a slide rod passing through one end of the sleeve rod and slidably connected within the sleeve rod, a positioning screw screwed to one side of the sleeve rod for pressing the slide rod against the sleeve rod, and a connecting knob fixedly connected to the end of the positioning screw away from the sleeve rod. By sliding the slide rod along the axial direction of the sleeve rod, the overall length can be adjusted to accommodate the length differences of different patients and different limbs. After adjustment, rotating the connecting knob drives the positioning screw to press against the slide rod to achieve locking, thus improving the versatility and clinical applicability of the device.

[0008] Preferably, to achieve multi-angle adjustment of the elastic clamp, the universal structure includes a connecting seat, a groove on the connecting seat, a universal ball rotatably connected in the groove, and a locking screw screwed to one side of the connecting seat to press the universal ball against the groove. One universal ball on the universal structure is fixedly connected to the end of the sleeve rod away from the slide rod on the side away from the groove. The other universal ball on the universal structure is fixedly connected to the end of the slide rod away from the sleeve rod on the side away from the groove. The side of the fixing plate away from the clamping plate is fixedly connected to the connecting seat. By allowing the universal ball to rotate 360 ​​degrees within the groove of the connecting seat, the connected sleeve rod, slide rod, and elastic clamp can be synchronously adjusted in angle. Once the angle is adjusted to the target position, simply rotate the locking screw to press it against the universal ball, locking the universal ball's position within the groove. This prevents angle deviation and allows for precise matching of limb joint shapes, improving the device's flexibility and fixation accuracy.

[0009] Preferably, in order to facilitate the fixing of the Kirschner wire by the clamping plate and the fixing plate, the clamping plate and the fixing plate are provided with arc-shaped grooves on the sides of their proximity to each other for accommodating and positioning the Kirschner wire; the curvature of the arc-shaped groove can be adapted to the curvature of the outer wall of the Kirschner wire, and when the Kirschner wire is placed between the two plates, the arc-shaped groove can fit and wrap around the Kirschner wire, increase the contact area and restrict the movement direction of the Kirschner wire, thereby ensuring the fixing effect of the Kirschner wire.

[0010] Preferably, to secure the elastic splint, an opening is provided on the side of the elastic splint away from the clamping plate. Connecting blocks are fixedly installed on both sides of the opening, and a tightening bolt passes through the two connecting blocks. A nut is screwed to one end of the tightening bolt to lock the tightening bolt and adjust the clamping tightness of the elastic splint. The opening provides deformation space for the elastic splint. By loosening the nut and adjusting the tightness of the tightening bolt, the spacing between the connecting blocks can be changed, thereby adjusting the opening and clamping degree of the elastic splint. After adjustment, tightening the nut locks the clamping degree, thus adapting to the differences in limb thickness among patients of different body types. This ensures that the elastic splint can closely fit the limb to guarantee fixation stability and improves the safety and adaptability of the elastic splint fixation.

[0011] Preferably, to facilitate the connection between the elastic clamping plate and the connecting structure, a threaded hole for matching the locking bolt is provided on the side of the elastic clamping plate near the clamping plate. By matching the thread structure of the threaded hole with that of the locking bolt, the locking bolt is passed through the clamping plate and screwed into the threaded hole during assembly. The elastic clamping plate is firmly locked onto the connecting structure through thread engagement, which can achieve a stable connection between the elastic clamping plate and the connecting structure and ensure the fixing effect of the elastic clamping plate.

[0012] Preferably, in order to buffer pressure and improve the wearing comfort of the elastic splint, the inner side of the elastic splint is provided with evenly distributed pads for contact with the limb; the pads are made of soft and supportive medical material, which directly contacts the skin of the limb, can disperse the clamping force transmitted by the elastic splint, avoid pressure concentration on the skin protrusions or bone protrusions, and at the same time reduce the direct friction between the elastic splint and the skin, thus improving the patient's long-term wearing comfort.

[0013] Preferably, in order to accommodate differences in local swelling of the limb and reserve space for swollen areas, the orthopedic fracture fixation device further includes a lifting component disposed on the elastic splint for adjusting the position of the pad; the lifting component can drive the pad to move up and down along the thickness direction of the elastic splint, which can lower the corresponding pad for areas with significant swelling to reserve space, and raise the pad for normal areas to maintain close support, so as to adapt to the dynamic changes in local swelling of the limb after fracture, thereby reducing blood circulation obstruction or tissue necrosis caused by compression of swollen areas, while ensuring the support and fit of normal areas, and improving the practicality of the device.

[0014] Preferably, in order to achieve the adjustment of the pad position, the lifting assembly includes a guide groove formed on the inner side of the elastic clamp corresponding to the pad position, a slider slidably connected in the guide groove and fixedly connected to the pad, a lead screw that runs longitudinally through the guide groove and the elastic clamp and is rotatably connected in the elastic clamp and the guide groove, and a miniature knob set on the outer side of the elastic clamp and fixedly connected to one end of the lead screw; by rotating the miniature knob, the lead screw is driven to rotate, and when the lead screw rotates, it drives the slider to rise and fall along the guide groove, thereby driving the pad to adjust its height synchronously, which is convenient to operate.

[0015] This adjustable-angle orthopedic fracture fixation device, through the synergistic effect of the fixation plate, clamping plate and locking bolt in the connecting structure, can achieve external fixation through the elastic clamping plate and internal fixation assistance through clamping Kirschner screws. It can flexibly adapt to different fracture types such as stable fractures and unstable fractures without replacing the entire device, reducing medical equipment costs and clinical operation difficulty. This adjustable-angle orthopedic fracture fixation device uses a clamping plate and a fixation plate to support the elastic splint, and then locks it with a locking bolt, so that the elastic splint can be rotated and locked individually to achieve individual angle adjustment of each elastic splint. With the cooperation of the universal structure, it can accurately adapt to the physiological angle of the limb and the fracture reduction requirements, further improving the flexibility of the device and the fixation accuracy. This adjustable-angle orthopedic fracture fixation device, through the setting of a lifting component, can lower the corresponding pad for areas with significant swelling to make room, and raise the pad for normal areas to maintain a close fit and support. This adapts to the dynamic changes in local swelling of the limb after a fracture, thereby reducing blood circulation obstruction or tissue necrosis caused by pressure on swollen areas, while ensuring the support and fit of normal areas, thus improving the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an adjustable-angle orthopedic fracture fixation device. Figure 2 This is a schematic diagram of an adjustable-angle orthopedic fracture fixation device in its adjusted state. Figure 3 This is a schematic diagram of the exploded structure of an adjustable-angle orthopedic fracture fixation device. Figure 4 This is a schematic diagram of the universal joint and connecting structure in an adjustable-angle orthopedic fracture fixation device. Figure 5 An exploded structural diagram of the universal structure and connection structure of an adjustable-angle orthopedic fracture fixation device; Figure 6 This is a schematic diagram of the structure of an elastic splint in an adjustable-angle orthopedic fracture fixation device. Figure 7 for Figure 6 Enlarged structural diagram at point A; Figure 8 This is a partial structural diagram of the lifting component in an adjustable-angle orthopedic fracture fixation device.

[0017] In the picture: 1. Telescopic rod; 11. Sleeve rod; 12. Slide rod; 13. Positioning screw; 14. Connecting knob; 2. Elastic clamping plate; 21. Opening; 22. Connecting block; 23. Tightening bolt; 24. Nut; 25. Threaded hole; 26. Spacer block; 3. Universal structure; 31. Connecting seat; 32. Groove; 33. Universal ball; 34. Locking screw; 4. Connecting structure; 41. Fixing plate; 42. Clamping plate; 43. Locking bolt; 44. Arc groove; 5. Lifting assembly; 51. Guide groove; 52. Slider; 53. Lead screw; 54. Miniature knob. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] Example 1 This embodiment provides an adjustable-angle orthopedic fracture fixation device, such as... Figures 1-6 As shown, the orthopedic fracture fixation device includes a telescopic rod 1, elastic splints 2 respectively disposed at both ends of the telescopic rod 1, and a universal structure 3 respectively disposed at both ends of the telescopic rod 1 and connected to the corresponding elastic splints 2 for adjusting the angle of the elastic splints 2; the orthopedic fracture fixation device also includes a connecting structure 4 disposed on the universal structure 3 for assembling and disassembling the elastic splints 2 or Kirschner screws; the connecting structure 4 includes a fixing plate 41 disposed on the universal structure 3, a clamping plate 42 disposed on the side of the fixing plate 41 away from the universal structure 3 for clamping Kirschner screws or connecting the elastic splints 2, and a locking bolt 43 disposed on the fixing plate 41 for locking the clamping plate 42 or the elastic splints 2.

[0020] In order to facilitate the fixing of Kirschner screws by the clamping plate 42 and the fixing plate 41, arc-shaped grooves 44 for accommodating and positioning Kirschner screws are provided on the side of the clamping plate 42 and the fixing plate 41 that are close to each other. The curvature of the arc-shaped grooves 44 can be adapted to the curvature of the outer wall of the Kirschner screw. When the Kirschner screw is placed between the clamping plate 42 and the fixing plate 41, the arc-shaped grooves 44 can fit and wrap the Kirschner screw, increase the contact area and restrict the movement direction of the Kirschner screw, thereby ensuring the fixing effect of the Kirschner screw.

[0021] In addition, to facilitate the connection between the elastic clamping plate 2 and the connecting structure 4, the side of the elastic clamping plate 2 near the clamping plate 42 is provided with a threaded hole 25 for matching the locking bolt 43. By matching the thread structure of the threaded hole 25 with the locking bolt 43, the locking bolt 43 is passed through the clamping plate 42 and screwed into the threaded hole 25 during assembly. The elastic clamping plate 2 is firmly locked onto the connecting structure 4 through the thread engagement, which can achieve a stable connection between the elastic clamping plate 2 and the connecting structure 4 and ensure the fixing effect of the elastic clamping plate 2.

[0022] When using this device, first select the fixation mode according to the patient's fracture condition. For stable fractures such as non-displaced radius and ulna fractures and closed phalanx fractures, use elastic clip 2 for external fixation. For unstable fractures such as comminuted fractures and significantly displaced femoral fractures, use Kirschner wires for internal fixation. Then, adjust the extension length of the telescopic rod 1 according to the length of the patient's limb to fit the limb size and ensure that the device can completely cover the fracture site. When using elastic clip 2 for external fixation, adjust the angle of elastic clip 2 using the universal joint 3 to conform to the physiological shape of the limb fracture and the reduction requirements. When using Kirschner wire internal fixation, adjust the angle using the universal joint 3 to fit the Kirschner wire fixation requirements, and keep the position of the universal joint 3 stable after the angle is determined. However, when using elastic clip 2, align the threaded hole 25 on the side of elastic clip 2 closest to the clamping plate 42 with... The connecting structure 4 aligns the threaded hole 25 with the locking bolt 43 on the fixation plate 41. The locking bolt 43 is then passed through the clamping plate 42 and screwed into the threaded hole 25. The locking bolt 43 is tightened to lock the elastic splint 2, so that the elastic splint 2 is stably connected to the universal structure 3 through the connecting structure 4, thereby achieving external fixation of the fractured limb. When Kirschner screws are needed, the locking bolt 43 is first loosened to separate the threaded hole 25 from the locking bolt 43 and remove the elastic splint 2. Then, the Kirschner screw is placed in the arc-shaped groove 44 on the side of the fixation plate 41 and the clamping plate 42 that are close to each other, ensuring that the outer wall of the Kirschner screw fits and is positioned in the arc-shaped groove 44. Then, the locking bolt 43 on the fixation plate 41 is tightened and locked with a nut, which moves the clamping plate 42 toward the fixation plate 41 to clamp the Kirschner screw, so that the Kirschner screw is stably fixed through the connecting structure 4, providing auxiliary support for internal fixation of the fracture ends.

[0023] Specifically, the telescopic rod 1 includes a sleeve rod 11, a slide rod 12 that passes through one end of the sleeve rod 11 and is slidably connected inside the sleeve rod 11, a positioning screw 13 that is screwed to one side of the sleeve rod 11 to press the slide rod 12 against the sleeve rod 11, and a connecting knob 14 that is fixedly connected to the end of the positioning screw 13 away from the sleeve rod 11. When it is necessary to adjust the telescopic rod 1 to fit the length of the patient's limb, first, according to the actual length requirement of the fractured limb, hold the sleeve rod 11 and the sliding rod 12, and push the sliding rod 12 to slide along the axial direction of the sleeve rod 11. When it is necessary to extend the overall length of the telescopic rod 1, pull the sliding rod 12 outward from the sleeve rod 11 until the length of the telescopic rod 1 can completely cover the fracture site. Conversely, when it is necessary to shorten the overall length of the telescopic rod 1, push the sliding rod 12 inward into the sleeve rod 11 until the appropriate length is reached. After the length of the telescopic rod 1 is adjusted to the target size, hold the connecting knob 14 and turn it. The positioning screw 13, which is fixedly connected to the connecting knob 14, moves inward along the side wall of the sleeve rod 11 until the end of the positioning screw 13 tightly abuts against the outer wall of the sliding rod 12. Through the abutting force of the positioning screw 13 against the sliding rod 12, the relative position of the sliding rod 12 and the sleeve rod 11 is locked. Finally, the length adjustment and fixation of the telescopic rod 1 are completed, ensuring that it can stably fit the length of the patient's limb and provide basic support for subsequent fracture fixation.

[0024] Furthermore, the universal structure 3 includes a connecting seat 31, a groove 32 formed on the connecting seat 31, a universal ball 33 rotatably connected in the groove 32, and a locking screw 34 screwed to one side of the connecting seat 31 for pressing the universal ball 33 against the groove 32. The side of the universal ball 33 on one of the universal structures 3 away from the groove 32 is fixedly connected to the end of the sleeve rod 11 away from the slide rod 12. The side of the universal ball 33 on the other universal structure 3 away from the groove 32 is fixedly connected to the end of the slide rod 12 away from the sleeve rod 11. The side of the fixing plate 41 away from the clamping plate 42 is fixedly connected to the connecting seat 31. When it is necessary to adjust the universal joint 3 to adapt to the limb angle or fixation requirements, first determine the target angle required for the elastic splint 2 or Kirschner screw based on the physiological angle of the fracture site or the fixation angle requirements after fracture reduction. Then, hold the fixation plate 41 fixed to the connecting seat 31 and push the connecting seat 31 to rotate around the universal ball 33. Since the two universal balls 33 are respectively fixed to the end of the sleeve rod 11 away from the slide rod 12 and the end of the slide rod 12 away from the sleeve rod 11, and the universal balls 33 can rotate freely in the groove 32 of the connecting seat 31, rotating one connecting seat 31 will drive the fixed plate 41 connected to it and the connected elastic splint 2 or Kirschner screw to adjust the angle synchronously until it fits the physiological limb. Once the target angle for fracture fixation is achieved, hold the end of the locking screw 34 away from the connecting seat 31 and rotate it clockwise. This moves the locking screw 34 along the threaded hole on the side wall of the connecting seat 31 into the groove 32 until the end of the locking screw 34 tightly abuts against the universal ball 33 in the groove 32. The clamping force of the locking screw 34 against the universal ball 33 locks the relative position of the universal ball 33 and the connecting seat 31, preventing the connecting seat 31 from rotating on its own during use and causing angle deviation. This completes the angle adjustment and fixation of the universal structure 3, ensuring that the elastic splint 2 or Kirschner screw can be stably maintained at the target angle, providing a suitable fixation environment for fracture healing.

[0025] Furthermore, the elastic clamping plate 2 has an opening 21 on the side away from the clamping plate 42. Connecting blocks 22 are fixedly installed on both sides of the opening 21. A tightening bolt 23 passes through the two connecting blocks 22. A nut 24 is screwed to one end of the tightening bolt 23 to lock the tightening bolt 23 and adjust the clamping tightness of the elastic clamping plate 2. When using the elastic splint 2, first determine whether the current clamping force of the elastic splint 2 needs adjustment based on the actual thickness of the fractured limb. If the limb is thicker, the opening range of the elastic splint 2 needs to be increased; if the limb is thinner, the opening range needs to be decreased to increase the clamping force. First, grasp the nut 24 and turn it counterclockwise, so that the nut 24 moves away from the connecting block 22 along the thread of the tightening bolt 23, releasing the locking state of the tightening bolt 23 on the connecting blocks 22 on both sides of the opening 21. Then, adjust the distance between the two connecting blocks 22 as needed. When it is necessary to increase the opening range, slightly pull the connecting block 22 outward to widen the opening 21 until the inner side of the elastic splint 2 can fit the limb without pressure. When it is necessary to increase the clamping force, push the connecting block 22 inward to narrow the opening 21 until the elastic splint 2 can fit tightly against the limb without affecting blood circulation. After the opening or clamping force of the elastic splint 2 is adjusted to the target state, hold the nut 24 and turn it clockwise so that the nut 24 moves along the thread of the tightening bolt 23 toward the connecting block 22 until the nut 24 tightly abuts against one of the connecting blocks 22. The distance between the two connecting blocks 22 is locked by the cooperation of the tightening bolt 23 and the nut 24, thereby fixing the clamping degree of the elastic splint 2. This ensures that the elastic splint 2 can stably fix the fractured limb and avoid skin damage or blood circulation obstruction caused by excessive clamping.

[0026] It is worth noting that, in order to cushion pressure and improve the wearing comfort of the elastic splint 2, the inner side of the elastic splint 2 is provided with evenly distributed pads 26 for contact with the limb. The pads 26 are made of soft and supportive medical material, which is silicone. By directly contacting the skin of the limb, they can disperse the clamping force transmitted by the elastic splint 2, avoid pressure concentration on the skin protrusions or bone protrusions, and reduce direct friction between the elastic splint 2 and the skin, thereby improving the patient's long-term wearing comfort.

[0027] Example 2 Unlike Example 1, as Figures 7-8 As shown, in order to accommodate the differences in local swelling of the limb and reserve space for the swollen area, the orthopedic fracture fixation device also includes a lifting component 5 set on the elastic splint 2 for adjusting the position of the pad 26. The lifting component 5 includes a guide groove 51 opened on the inner side of the elastic splint 2 corresponding to the position of the pad 26, a slider 52 slidably connected in the guide groove 51 and fixedly connected to the pad 26, a screw rod 53 that runs longitudinally through the guide groove 51 and the elastic splint 2 and is rotatably connected in the elastic splint 2 and the guide groove 51, and a miniature knob 54 set on the outer side of the elastic splint 2 and fixedly connected to one end of the screw rod 53. First, observe the swelling of the fractured limb to determine the swollen areas where the pad 26 needs to be lowered to allow space for clearance, and the normal areas where the pad 26 needs to be kept or raised to ensure proper support. Then, grasp and rotate the micro knob 54 on the outside of the elastic splint 2. When the pad 26 needs to be lowered, rotate the micro knob 54, which will cause the screw 53, which is fixedly connected to the micro knob 54, to rotate synchronously within the elastic splint 2 and the guide groove 51. Since the screw 53 is threadedly connected to the slider 52 and the slider 52 is limited by the guide groove 51 and cannot rotate, the slider 52 will slide downward along the guide groove 51. In this way, the slider 52 can drive the pad 26, which is fixedly connected to it, to descend synchronously until a proper fit is formed between the pad 26 and the swollen area. When the space is appropriate, the pad 26 can be adjusted. Conversely, when the pad 26 needs to be raised, the micro knob 54 is turned in the opposite direction. At this time, the lead screw 53 is also turned in the opposite direction. The lead screw 53 can drive the slider 52 to slide upward along the guide groove 51, so that the pad 26 rises synchronously until the pad 26 fits tightly against the normal part of the limb. After all the target pads 26 are adjusted to the appropriate height, the micro knob 54 is stopped. The threaded engagement structure between the lead screw 53 and the slider 52 ensures that the slider 52 is positioned in the guide groove 51, thereby fixing the height of the pad 26. This ensures that the pad 26 can avoid the swollen area and avoid pressure damage, while also providing stable support to the normal part, improving the comfort and safety of wearing the elastic splint 2.

[0028] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. An adjustable angle orthopedic fracture fixation device, comprising a telescopic rod (1), elastic splints (2) respectively disposed at both ends of the telescopic rod (1), and a universal structure (3) respectively disposed at both ends of the telescopic rod (1) and connected to the corresponding elastic splints (2) for adjusting the angle of the elastic splints (2); Its features are: The orthopedic fracture fixation device also includes a connecting structure (4) set on the universal structure (3) for the installation and removal of the elastic splint (2) or Kirschner nails. The connecting structure (4) includes a fixing plate (41) disposed on the universal structure (3), a clamping plate (42) disposed on the side of the fixing plate (41) away from the universal structure (3) for clamping Kirschner nails or connecting elastic clamping plates (2), and a locking bolt (43) disposed on the fixing plate (41) for locking the clamping plate (42) or elastic clamping plates (2).

2. The adjustable-angle orthopedic fracture fixation device according to claim 1, characterized in that: The telescopic rod (1) includes a sleeve rod (11), a slide rod (12) passing through one end of the sleeve rod (11) and slidably connected inside the sleeve rod (11), a positioning screw (13) screwed to one side of the sleeve rod (11) for pressing the slide rod (12) against the sleeve rod (11), and a connecting knob (14) fixedly connected to the end of the positioning screw (13) away from the sleeve rod (11).

3. The adjustable-angle orthopedic fracture fixation device according to claim 2, characterized in that: The universal structure (3) includes a connecting seat (31), a groove (32) formed on the connecting seat (31), a universal ball (33) rotatably connected in the groove (32), and a locking screw (34) screwed to one side of the connecting seat (31) to press the universal ball (33) against the groove (32). The side of the universal ball (33) on one of the universal structures (3) away from the groove (32) is fixedly connected to the end of the sleeve rod (11) away from the slide rod (12). The side of the universal ball (33) on the other universal structure (3) away from the groove (32) is fixedly connected to the end of the slide rod (12) away from the sleeve rod (11). The side of the fixing plate (41) away from the clamping plate (42) is fixedly connected to the connecting seat (31).

4. The adjustable-angle orthopedic fracture fixation device according to claim 3, characterized in that: Both the clamping plate (42) and the fixing plate (41) have arc-shaped grooves (44) on their sides that are close to each other, for accommodating and positioning Kirschner nails.

5. The adjustable-angle orthopedic fracture fixation device according to claim 4, characterized in that: The elastic clamp (2) has an opening (21) on the side away from the clamping plate (42). Connecting blocks (22) are fixedly installed on both sides of the opening (21). A tightening bolt (23) passes through the two connecting blocks (22). A nut (24) is screwed to one end of the tightening bolt (23) to lock the tightening bolt (23) and adjust the clamping degree of the elastic clamp (2).

6. The adjustable-angle orthopedic fracture fixation device according to claim 5, characterized in that: The elastic clamping plate (2) has a threaded hole (25) on the side near the clamping plate (42) for matching the locking bolt (43).

7. The adjustable-angle orthopedic fracture fixation device according to claim 5, characterized in that: The inner side of the elastic splint (2) is provided with evenly distributed pads (26) for contact with the limb.

8. The adjustable-angle orthopedic fracture fixation device according to claim 7, characterized in that: The orthopedic fracture fixation device also includes a lifting assembly (5) disposed on the elastic splint (2) for adjusting the position of the pad (26).

9. The adjustable-angle orthopedic fracture fixation device according to claim 8, characterized in that: The lifting assembly (5) includes a guide groove (51) opened on the inner side of the elastic clamping plate (2) corresponding to the position of the pad (26), a slider (52) slidably connected in the guide groove (51) and fixedly connected to the pad (26), a lead screw (53) that runs longitudinally through the guide groove (51) and the elastic clamping plate (2) and is rotatably connected in the elastic clamping plate (2) and the guide groove (51), and a miniature knob (54) set on the outer side of the elastic clamping plate (2) and fixedly connected to one end of the lead screw (53).

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